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Jun 2026 DOI 10.14302/issn.2694-2283.jsem-26-6247
Quintero GabrielCorresponding author
Background Ankle sprains are among the most common injuries in sports, often characterized by high recurrence rates despite appropriate local treatment. Traditional approaches primarily focus on the injured joint, with limited attention to proximal biomechanical factors that may predispose athletes to injury. Objective To propose a functional, longitudinal kinetic chain model in which sacroiliac joint dysfunction may act as a predisposing factor for ankle sprain/strain injuries in athletes. Methods This paper presents a clinical hypothesis based on biomechanical reasoning and observational findings. The proposed model describes how sacroiliac joint dysfunction, particularly posterior innominate rotation (PI), may lead to pelvic obliquity and functional leg length discrepancy. These changes may induce compensatory femoral external rotation and foot toe-out, altering ground contact mechanics during gait and running. Results (Hypothesis) The altered alignment and loading pattern may increase the vertical impact force and modify the ground reaction vector on the functionally shorter limb, resulting in reduced mechanical stability at the ankle during heel strike or foot contact. Over time, this may increase susceptibility to inversion or eversion injuries, manifesting clinically as recurrent sprain/strain. Conclusion Ankle sprains in athletes may, in some cases, represent the distal expression of a proximal biomechanical imbalance. Incorporating assessment of the sacroiliac joint and the longitudinal kinetic chain into routine clinical evaluation may improve injury risk identification and contribute to more effective prevention strategies. Further research is needed to investigate this proposed relationship.
May 2026 DOI 10.14302/issn.2578-8590.ipj-26-6121
Bitsch Poulsen MariaCorresponding author
Aims Cardiac autonomic neuropathy is currently an untreatable progressive complication of type 1 diabetes (T1D). Impaired microcirculation is a suspected cause of nerve degeneration in TID. We investigated whether cardiovascular autonomic reflexes often used as indices of nerve functions, are associated with indices of microcirculatory function in young adults with T1D compared with non-diabetic controls. Methods In a cross-sectional study, 15 adults with T1D and 15 age-matched controls (20-40 years) underwent standardized cardiovascular autonomic reflex tests. Continuous recordings of electrocardiogram, cardiac vagal tone, beat-to-beat blood pressure and transcutaneous tissue oxygen (tcpO₂) and carbon dioxide partial pressures (tcpCO2) were done. Results Despite preserved baroreflex, parasympathetic, and sympathetic functions assessed using cardiovascular reflex tests, the individuals with T1D exhibited reduced baseline tcpO2 compared to the controls (37.5±3.75 vs. 49.6 mmHg). During the Valsalva manoeuvre, individuals with T1D exhibited a reduced systolic blood pressure response in phase I (31±10 vs. 43±18 mmHg) and early phase II (-1±15 vs. -18±17 mmHg), and an increased systolic (31±15 vs. 18±14 mmHg) and diastolic (45±11 vs. 33±16 mmHg) response in late phase II compared to controls. The early phase II diastolic response was inversely associated with baseline tcpO2. Conclusion The altered hemodynamic response to the Valsalva manoeuvre is suggestive of possible reduced arterial elasticity, higher vascular resistance, and splanchnic sympatho-vagal imbalance in T1D despite normal autonomic reflex ratios. The concomitant evidence of reduced tissue oxygenation and altered hemodynamics may represent early signs of dysautonomia but require longitudinal validation.
May 2026 DOI 10.14302/issn.3070-2232.jf-26-6197
Jana SnehasisCorresponding author
Background The increasing demand for sustainable and eco-friendly agricultural practices has led to the exploration of non-traditional methods to enhance crop yield and resilience. Spiritual Blessings (Biofield) Energy Treatment (SBET), a form of consciousness-driven energy healing, is increasingly being investigated for its potential to modulate biological systems at the cellular and molecular levels without use of chemical additives Objective This study aimed to evaluate the impact of SBET on the growth characteristics and overall productivity of summer squash (Cucurbita pepo L.). Methods The study was conducted using a controlled experimental design, where seeds and plots were divided into two groups: control and treated. The treated group received a remote SBET by a recognized practitioner, while the control group remained untreated. Both groups were maintained under identical environmental conditions (soil, water). Parameters such as germination rate, plant height, leaf area index, and total fruit yield were monitored over a full growth cycle. Results Results showed that plant height, number of branches, and total number of leaves per plant were significantly improved by 35.14% (p ≤ 0.001), 41.64% (p = 0.011), and 49.01% (p = 0.029), respectively, in the treatment group compared to the control group. Additionally, fruit length and total fruit yield (tons per hectare) were significantly increased by 39.68% (p = 0.002) and 15.92%, respectively, in the treatment group compared to the control group. Conclusion Exposure of SBET significantly improved both vegetative and reproductive development, yielding substantial increases in plant height, branching, and leaf production.
Dec 2025 DOI 10.14302/issn.2473-1005.jdoi-25-5870
Arthur Ferreira RibasCorresponding author
This narrative literature review investigates the clinical feasibility of maxillary sinus lift using the lateral window (or traumatic) technique, employing a grafting material composed of hydroxyapatite associated with beta-tricalcium phosphate. The study is based on the premise that bone resorption and sinus pneumatization—common in edentulous posterior maxillae—pose a challenge to achieving primary stability during dental implant placement. Given the limitation imposed by reduced residual bone height, bone-grafting surgical techniques become necessary to enable implant-supported rehabilitation. The objective of this work is to analyze, through a literature review, the efficacy of combining synthetic biomaterials as an alternative to autogenous bone grafts, which are considered the gold standard in implant dentistry. A bibliographic search was conducted in the PubMed and LILACS databases and through the VHL portal, prioritizing articles addressing the biological properties of alloplastic grafts, the indications of the lateral window technique, and the clinical success rates of implants placed in previously grafted areas using such materials. The findings demonstrated that hydroxyapatite associated with beta-tricalcium phosphate exhibits favorable osteoconductive characteristics, such as adequate porosity and gradual resorption, while allowing the formation of viable bone within a clinically acceptable timeframe. The combination of these materials eliminates the need for a second surgical site, reduces morbidity, and maintains treatment predictability. It is concluded that the lateral window technique associated with synthetic biomaterials is a safe and effective alternative for patients with maxillary bone atrophy, capable of promoting suitable bone beds for dental implant placement and stabilization, with lower surgical risk and satisfactory clinical outcomes.
Dec 2025 DOI 10.14302/issn.2690-6759.jpar-25-5496
Chigozie Divine OnwukaCorresponding author
Intestinal parasitic helminths pose a significant public health burden, particularly among children. This cross-sectional study investigated the prevalence and risk factors of intestinal parasitic helminths among 550 school children aged 4-12 years in Oru-West L.G.A, Imo State, Nigeria. Stool samples were examined using parasitological techniques, and questionnaires were administered to collect data on risk factors. The overall prevalence of intestinal parasitic helminths was 49.1% (270/550), with Ascaris lumbricoides being the most prevalent (30.37%). Multivariate analysis revealed significant associations between intestinal parasitic helminths and lack of hand-washing, insufficient toilet facilities, consumption of unwashed vegetables, and poor environmental sanitation. Males had a significantly higher infection rate than females (P < 0.05). Age-related prevalence was highest among children aged 4-6 (51.85%). Occupational status and educational level of parents were also significant predictors of infection. These findings highlight the need for public health education, provision of basic sanitation facilities, and regular de-worming as preventive measures.
Dec 2025
Liu LipingCorresponding author
The incidence rate of melasma is notably high among patients with anxiety disorders. Aromatherapy primarily influences the physiological and psychological states of individuals through the inhalation or application of essential oils, thereby facilitating the treatment or alleviation of various conditions. This study aims to explore the action mechanism of complex lemon-angelica sinensis -boswellia essential oil (CEO) in treating anxiety disorders with melasma. We investigated the active ingredients, targets, and pathways of CEO in relation to anxiety and melasma using network pharmacology. We employed cell assays and conducted nebulized essential oil inhalation tests on CUMS mice to validate the intervention effects of CEO on anxiety. A total of 28 active components, including neryl acetate, 3-butenylphthalide and octyl acetate, and 26 cross-targets, such as ESR1, CCND1 and PIK3CA, were identified. GO and KEGG pathway analyses indicated that these cross-targets were primarily involved in endocrine regulation, cell proliferation, and apoptosis, specifically through PI3K/Akt signaling pathway and calcium signaling pathway. The experimental results demonstrated that CEO significantly reduced the secretion of NO, TNF-a and IL-6, as well as the mRNA expressions of ESR1, CCND1 and PIK3CA in cells compared to the inflammatory cell model. Furthermore, CEO notably decreased the forced swimming immobility time of mice and the levels of IL-1β, ESR1 and CCND1 in hippocampus when compared to model mice. These findings suggest that CEO may regulate ESR1, CCND1 and PIK3CA through its citral, 3-butylphthalate and neryl acetate, thereby influencing endocrine function, cell proliferation and apoptosis, inhibiting inflammation and anxiety-like behavior in CUMS-induced mice.
Dec 2025 DOI 10.14302/issn.2768-5209.ijen-25-5732
S Isaac AnvyCorresponding author
The growing population demands and environmental concerns associated with traditional protein sources have prompted the exploration of alternative and sustainable food sources. The purpose of this comprehensive review is to highlight the nutritional benefits and sustainability of insect-based foods as a promising solution. Global population growth necessitates innovative approaches to meet the demand for nutritious and sustainable protein sources. There are numerous challenges associated with traditional livestock farming, including land use inefficiency, high water usage, and greenhouse gas emissions. As a result, edible insects have emerged as a viable alternative, providing proteins (35-77% of dry matter), healthy fats (10-50%), essential amino acids, and micronutrients such as iron (up to 31mg/100g) and zinc (up to 20mg/100g), vitamins, and minerals. In contrast to livestock, which requires 22,000-43,000 liters of water to produce 1 kg of beef, insect farming consumes significantly less water and land resources. Insects have the potential to address nutritional deficiencies and strengthen food security as they are recognized for sustainable production. The study thoroughly investigates the literature addressing environmental and sustainability concerns associated with edible insect farming, using a rigorous bibliometric and scientometric analysis via Vos viewer. With the help of Vos Viewer, it was possible to identify the geographical distribution of countries that contributed to the field of edible insects and their acceptance, as well as the top ten documents in this field with the most citations and mostly used keywords in this field of research. Future research and implementation strategies will be able to benefit global food security and environmental conservation through these alternative protein sources.
Dec 2025 DOI 10.14302/issn.2768-5209.ijen-25-5762
A. Abdellatif MahaCorresponding author
Sudan's ecological landscape is characterized by various zones, including deserts, semi-deserts, and savannas, which host a diverse array of forests, rangelands, and numerous plant and animal species. However, the sustainable management of these resources is becoming increasingly challenging due to human activities and the impacts of climate change. This article presents the results of a research project focused on monitoring and documenting biodiversity in Sudan's semi-arid regions, particularly emphasizing insect diversity. Insects are vital for maintaining ecosystem health through processes such as nutrient cycling, decomposition, pollination, and acting as natural predators to pests. Field surveys were conducted across three Sudanese states—North Kordofan, Gezira, and Khartoum—to assess the diversity of flora and fauna. Specifically, El Rawakeeb semi-arid land in Khartoum state was investigated, which comprised three sites with varying soil elevations: a hilly site at 420 meters above sea level, a flat site at 416 meters, and a valley site at 411 meters. Researchers utilized direct collection methods and butterfly nets to gather insect specimens, which were subsequently preserved and identified for further analysis. Diversity indices, including Simpson’s Diversity Index, Shannon-Wiener Index, and Margalef Richness Index, were computed to compare the biodiversity of these sites, along with metrics for evenness and species richness. Permanova analysis was carried out for insect variation between the study sites. A total of 1541 insect specimens were gathered from El Rawakeeb, encompassing 34 species distributed across 21 families and 9 orders. The order Lepidoptera exhibited the greatest number of species (35.29%), followed by Coleoptera (20.59%). The orders Neuroptera, Orthoptera and Thysanoptera recorded the fewest species (2.94% each). From the hilly site, 514 insect specimens were collected, representing 9 orders, among which Hymenoptera included 4 species, while Lepidoptera had 3 species, and Odonata, Orthoptera, and Thysanoptera each had 1 species. The highest individual counts were recorded for Copriniklobe (dung beetle), Dacus longistylus (fruit fly), Camponotussp. (carpenter ant), and Anax ephippiger (dragonfly). In a flat site, 484 insect specimens were collected, classified into 15 species, 12 families, and 7 orders. The highest individual counts were noted in four species: Onthophagusnuba (dung beetle), Dacus longistylus (fruit fly), Camponotussp. (carpenter ant), and Anax ephippiger (dragonfly). In a valley site, 543 insect specimens were collected, categorized into 17 species, 16 families, and 9 orders. Insect Diversity in three research sites. Simpson's Diversity Index revealed varying levels of insect diversity across the three sites. The valley site exhibited the highest diversity level with an index score of 0.857, followed by the flat site at 0.826, and the hilly site at 0.819. The Shannon diversity index of 2.22 indicated the highest diversity among the three sites, suggesting a relatively diverse insect community. The relative abundance of insects was greatest in the valley site at 35.24%, followed by the hilly site at 33.35%, and the flat site at 31.41%. The Margalef Richness Index indicated a moderate level of richness in the insects collected from the three locations. Certain insect species were found in some sites but were absent in others. The PERMANOVA revealed notable variations among the three study sites (F = 2.24, p-value = 0.035).
Nov 2025 DOI 10.14302/issn.2379-7835.ijn-24-5360
Alam RashedCorresponding author
Background Malnutrition is a significant public health issue in Bangladesh, particularly impacting women and children. Rajshahi, marked by socio-economic disparities, offers a distinctive context to explore the nutritional status and health outcomes of these vulnerable groups. Objectives This study aims to assess the nutritional status of women and children in Rajshahi and investigate associated health outcomes. Additionally, it seeks to identify socio-economic and cultural factors that influence nutrition. Methods A mixed-methods approach was utilized, incorporating a cross-sectional survey of 460 households and in-depth interviews with mothers and caregivers. Anthropometric measurements were taken to evaluate the nutritional status of women and children, while dietary assessments measured nutrient intake and diversity. Logistic regression analysis was performed to determine the likelihood of malnutrition based on socio-economic characteristics, thereby identifying key risk factors. Results The findings indicate a troubling prevalence of malnutrition, with 36% of children under five classified as stunted and 25% as underweight. The analysis highlights critical factors contributing to chronic undernutrition, including maternal education, employment, and dietary diversity. Notably, mothers aged 27-37 exhibit a lower risk of undernutrition, and urban households with secure food access demonstrate better nutritional outcomes. Discussion Maternal education and employment were positively associated with better nutritional outcomes, as educated and employed mothers had higher chances of maintaining a normal BMI. Regular ANC visits (≥4 visits) were crucial for improved maternal nutrition. Household food security emerged as a significant determinant, with food-secure households showing better maternal nutritional status. Safe water access and adequate dietary diversity were also linked to improved maternal BMI. Additionally, factors such as child birth weight, exclusive breastfeeding, and childhood diarrhea significantly influenced maternal nutrition. Moreover, frequent antenatal care visits and a diverse diet are vital in mitigating undernutrition risks among children. Conclusion This study emphasizes the urgent need for targeted interventions to combat malnutrition in Rajshahi. Recommendations include implementing community-based nutrition education programs and improving access to healthcare services. By addressing the socio-economic and cultural determinants of nutrition, stakeholders can enhance health outcomes for women and children in the region, ultimately contributing to broader public health objectives in Bangladesh.
Oct 2025 DOI 10.14302/issn.3070-3360.ijco-24-5294
Adhikari RameshwarCorresponding author
Ayurveda is a traditional and scholarly medical system practiced in South Asia since the Vedic period. It integrates science and philosophy to promote a healthy, happy and prosperous life. Ayurvedicbhasmas are classical formulations that contain non-toxic forms of metals and minerals, enriched with therapeutic metabolites. These bhasmas are produced through repeated trituration of metals and minerals with the extracts from potent Ayurvedic herbs, followed by intense heating at temperatures above 650 °C. The preparation process of bhasmas closely resemble top-down approach in nanoparticle synthesis, resulting in very fine calcined nano-powders. These powders are used effectively in Ayurvedic treatments for various ailments, particularly chronic diseases. Recent studies have highlighted that bhasmas possess antioxidant, anti-inflammatory, antibacterial, antiviral and antitumor properties and may serve as potential carriers for drug delivery. This paper aims to compare bhasma particles prepared by traditional and modern methods, explore the therapeutic benefits of different bhasmas, and investigate the nanomedicinal features of various Ayurvedicbhasmas.
Sep 2025 DOI 10.14302/issn.2643-2811.jmbr-25-5688
Dahlmann NicolausCorresponding author
Obesity is associated with functional limitations in muscle performance. The true effect of obesity on skeletal muscle mass, including any interactions with aging effects, remains to be elucidated. The present study investigated the impact of obesity on the stimulation of muscle growth, based on a new model of body composition. A dataset of 44 men and 64 women was analysed. Body weight (Wt), body height (Ht), hand circumference (HdC) and waist circumference (WC) were measured. Processed by the Dahlmann-Body-Analysis (DBA) system, a new model of body composition, the increase of skeletal muscle mass (ΔSMM) compared to the individual reference weight was calculated. Muscle mass data derived by the DBA model are compared with DXA-derived predictive equations of studies representing different countries and ethnicities estimating the appendicular skeletal muscle mass. Means of these groups are tested by ANOVA. Age ranged from 18 to 72 years. All subjects had a BMI ≥ 29.7 (kg/m²). The mean values of ΔSMM as an estimate of muscle mass gain calculated by the DBA-system were 11.8 ±3.6 kg for men and 8.9 ±2.6 kg for women, respectively, demonstrating a linear, significantly rising relationship with BMI (ß > 0, p<0.001). The study population did not show a decrease in muscle mass with age in either men or women up to an age of 65 years. The results suggest that the present model has satisfactory prediction qualities to detect an increase in skeletal muscle mass associated with a growing burden of body fat.
Aug 2025 DOI 10.14302/issn.3066-8042.jac-25-5652
Amiri DavoudCorresponding author
Background Attention-deficit/hyperactivity disorder (ADHD) in adulthood is increasingly recognized not only as a psychiatric condition but also as a trait with behavioral and occupational implications—particularly in high-stakes, fast-paced financial environments. Traits such as impulsivity, sensation seeking, and altered reward sensitivity may influence decision-making among individuals engaged in stock trading or high-risk investment professions. Objective This systematic review and meta-analytic synthesis aims to investigate the relationship between ADHD, impulsivity, gender differences, and financial risk behavior, with a particular focus on decision-making outcomes in real or simulated trading contexts. Methods Seventeen peer-reviewed studies published between 2008 and 2025 were included. Studies employed behavioral experiments, fMRI paradigms, neurochemical analysis (e.g., glutamate levels), and ecological financial assessments to examine impulsive traits and investment behaviors among adults with and without ADHD. Both clinical samples and occupational cohorts (e.g., brokers, retail investors) were analyzed. The analysis followed PRISMA 2020 guidelines. Results ADHD symptoms—particularly impulsivity and reward hypersensitivity—were associated with increased delay discounting, higher risk-taking, and diminished cognitive control in financial tasks. Neuroimaging data revealed hypoactivation in prefrontal control regions and hyperactivation in reward-related circuits (e.g., ventral striatum). Gender-stratified analyses showed that males with ADHD displayed stronger preference for immediate rewards, higher portfolio turnover, and greater volatility. Preliminary evidence also suggests an overrepresentation of ADHD traits in high-frequency trading roles. Conclusion ADHD-related impulsivity significantly modulates financial risk behavior, particularly in high-stakes and fast-paced contexts such as trading. A convergence of behavioral, neurobiological, and ecological findings suggests that males with ADHD are disproportionately prone to rapid, high-risk financial decisions, whereas females may demonstrate greater regulatory control. These insights underscore the need for gender-sensitive interventions, occupational screening, and tailored psychoeducation. As financial environments become increasingly automated and fast-paced, understanding the neurocognitive vulnerabilities of individuals with ADHD may not only protect personal outcomes but also enhance systemic financial stability.
Jul 2025 DOI 10.14302/issn.3070-2232.jf-25-5519
Ewur Banson KwaminaCorresponding author
The rising costs of conventional poultry feed ingredients, such as soybean, maize, and fish meal, have prompted the search for more affordable and sustainable alternatives in poultry production. This study investigates the use of phytase-supplemented Palm Kernel Cake (PKC) as a replacement for soybean meal to improve feed efficiency, nutrient absorption, and growth performance in poultry. White Leghorn layers, Rhode Island Red layers, broilers, and cockerels were fed three different feed formulations: conventional feed (CF), Moderate PKC with Phytase (MPP), and High PKC with Phytase (HPP). The results showed that PKC-based diets significantly reduced feed costs while maintaining satisfactory growth, although CF led to higher body weight gain and feed efficiency. The MPP formulation struck an optimal balance between cost savings and nutritional quality, making it a viable option for layers and cockerels, while CF remained the most effective for broilers. While the HPP formulation resulted in lower feed costs, it compromised weight gain and overall profitability. These findings highlight the potential of phytase-enhanced PKC as a sustainable, cost-effective alternative to conventional feed, particularly in regions with high feed costs. However, the study emphasizes the importance of balancing cost reductions with feed quality to maximize profitability. Future research should focus on optimizing PKC inclusion levels and exploring additional enzyme supplements to further enhance feed efficiency and support sustainable poultry farming practices. This study provides valuable insights into how strategic feed formulation can support both economic and production goals in the poultry industry.
Jul 2025 DOI 10.14302/issn.2577-137X.ji-25-5581
Muthee Waweru EdmondCorresponding author
Coronavirus Disease 2019 (COVID-19) placed significant pressure on global health systems, necessitating rapid and widespread immunization, especially among healthcare workers (HCWs). Despite being prioritized in immunization programs, variations in vaccine uptake among HCWs have been reported across different settings. This study aimed to investigate the predictors of COVID-19 vaccine uptake among HCWs in Kiambu County, Kenya. An analytical cross-sectional study design was employed, involving 112 HCWs sampled using stratified random sampling from Level 2 to Level 5 healthcare facilities. Data were collected through a pre-tested and validated 18-item questionnaire and analyzed using SPSS version 29.0. Statistical methods included descriptive analysis, chi-square tests, logistic regression, and ANOVA. The overall COVID-19 vaccine uptake was 88.9%. Significant predictors of uptake included age (p = 0.048), cadre (p = 0.015), and facility level (p = 0.031). Knowledge of COVID-19 vaccines emerged as the strongest predictor, with HCWs demonstrating good-to-excellent knowledge being 14.97 times more likely to be vaccinated (p < 0.001). Confidence in vaccine safety and effectiveness was also significantly associated with uptake (p < 0.001). Uptake was highest in Level 5 hospitals and lowest in dispensaries. The study reveals high vaccine uptake among HCWs in Kiambu County, but disparities persist due to individual and systemic factors. Strengthening vaccine education, institutional support, and deploying mobile vaccine education units in lower-level facilities could help close these gaps, offering practical strategies for improving HCW vaccine coverage in Kenya and other low- and middle-income countries.
Jun 2025 DOI 10.14302/issn.2766-8681.jcsr-25-5555
Natasha Dharmakusumah TaniaCorresponding author
The roof of an HCl fiber-reinforced plastic (FRP) chemical tank failed by accident after it had been operated for less than its expected lifetime. A possible cause is the change in day and night temperature, which lead to the cyclic change in the concentration of HCl vapor in contact with roof part. To investigate this possibility, a detailed analysis on the durability of the material exposed to cyclic solution concentration is required. In this research, vinyl ester-glass fiber composite specimens were exposed to 35 mass % and 0 mass% of HCl alternately at 40°C to replicate cyclic concentration exposure in both the vapor and liquid phases. The mass uptake and penetration depth of HCl as well as the strength loss of the material were investigated. Mass uptake and thickness change in vapor phase shows two times higher than liquid phase, at 3.5% and 6% respectively. This occurs due to differences in the concentration of solutions that diffuse to the specimen in the vapor phase and liquid phase. This phenomenon arises from variations in the concentration of solutions that diffuse to the specimen in both vapor and liquid phases. The diffusion process is facilitated by osmotic pressure, leading to material swelling and contributing to their degradation. The result of flexural strength measurement of specimens indicated a decreasing trend as exposure time increased. The flexural strength decreases by up to 36% due to plasticization. The Cl and water content profile in specimens that obtained from elemental mapping of cross-sections using Energy-Dispersive X-ray Spectroscopy (EDS) are enhancing the study on how materials degrade, which may be a reason for damage to FRP tank roofs.
May 2025 DOI 10.14302/issn.2639-3166.jar-25-5495
Mekonnen Adare ZenebeCorresponding author
Enset (Ensete ventricosum) is a vital food security crop cultivated in South and South-western parts of Ethiopia. However, enset production and the farming families have been threatened by Xanthomonas wilt and its spread in the farming system. Thus, this study was conducted to investigate the soil fertility and plant management practices association on the incidence of Enset Xanthomonas wilt. Data on soils fertility and diseases from enset based farming clustered into inner, outer and outfield farm zone were sampled and surveyed. The result indicated that soil chemical properties significantly (p≤0.05) varied from inner to outfield farm zone. Significantly maximum nutrients store revealed in inner enset farm zones. Disease incidence reduced from inner to the outfield enset farm zone. Disease prevalence and disease incidence scored 28.5% and 11.6%, respectively depending on altitude and genotypes. Soil fertility levels in the enset inner and outfield plots were varied purposely to cultivate enset products as kocho, bulla or amicho (cooking type). The variations in soil fertility and Xanthomonas wilt incidence was associated with management practices applied for desired enset products. Therefore, management practices in enset based farming, soil fertility and location of enset planting zones found to be major indicators for disease incidence addressing to device control interventions.
Mar 2025 DOI 10.14302/issn.2637-6075.jpae-25-5464
R. Hodgson BruceCorresponding author
Antarctic krill is an important component of the zooplankton production in the Southern Ocean and is a major food source for baleen whales. The role of commercial fishing and predation by whales on Krill abundance has been investigated here using the innovative ecosystem-based fishery management, EBFM which maintains the krill to whale food web ecosystem stability. The literature indicates the Krill fishery may have been overfished, so it was reduced to the current annual upper limit of 0.62 million tonnes for support other predators of krill, such as seals, penguins and flying sea birds. However, recent literature suggests a moderate reduction in krill catch in the Antarctic Peninsula area due to its importance for whale migration to temperate areas. The Peninsula area catch was estimated to be reduced by about 10% due to additional concerns about climate change effects on krill abundance in the Southern Ocean, reducing overall catch to 0.556 million tonnes, moderately higher than the maximum taken in 2022. Hence, the krill biomass fishing was reduced to allow for predation by baleen whales and other predators, giving a full ecosystem-based fishing mortality similar to that previously estimated to maintain krill production in the Southern Ocean.
Mar 2025 DOI 10.14302/issn.2638-4469.japb-25-5395
Divakar ChennamsettiCorresponding author
Plant leaf diseases pose significant threats to crop yield and agricultural sustainability, making early and accurate detection crucial for effective disease management. In current years, deep neural network (DNN) techniques have shown remarkable potential in the field of image classification, including plant disease detection. The study aims to investigate the performance of two popular deep learning architectures, namely, VGG16 and InceptionResNetV2, for the detection of tomato plant leaf disease. The proposed methodology involves acquiring a diverse dataset comprising high-resolution images of healthy and diseased leaves from the target crops. Preprocessing techniques such as image augmentation and normalization are applied to enhance the generalization ability of the models and mitigate overfitting. Transfer learning is employed to initialize the deep learning architectures with weights pre-trained on large-scale image datasets to accelerate convergence and improve the models' performance in limited data scenarios. To evaluate performance of proposed networks various metrics such as validation and test accuracies, precision and recall, F1 score, and the area under the curve (AUC) are considered. From the investigations, the classification accuracy of the finest architectures is as follows: 99.8 percent for VGG16 and 99.4 percent for InceptionResNetV2 on Corn Leaves. The results suggest that the models developed during the investigation phase to identify the leaf disease were superior to any existing Deep Neural Networks (DNNs).
Feb 2025 DOI 10.14302/issn.2379-7835.ijn-24-5283
Menon P.Corresponding author
This article has been retracted on 30 August 2025. VIEW THE RETRACTION NOTICE (https://doi.org/10.14302/issn.2379-7835.ijn-25-5842) Objective The COVID-19 pandemic has led to the global research efforts to identify the risk factors which would lead to severe COVID-19 disease. This study aimed to investigate the relationship between body mass index (BMI) and severity of coronavirus disease 2019 (COVID-19). Methods A total of 2820 patients hospitalized with COVID-19 disease in nine Government Medical Colleges, COVID hospitals or COVID care centers of Maharashtra were included in the study. Interviews were conducted on the telephone and counselling was done. Results Among 2820, 2442 (86.60%) were asymptomatic or had a mild or moderate illness. More than half of the total COVID- 19 positive cases, 1591 (56.41%), were in the normal BMI range, and of these only 183 (11.50%) had severe COVID-19 disease. On the other hand, 647 (22.94%) patients were overweight and 106 (16.38%) had Severe COVID- 19 disease. Similarly, the patients who were obese, 363 (84.03%) were asymptomatic and 69 (15.97%) had severe COVID- 19 disease. Odds ratio for this association was found as 1.5, which indicates that patients who were obese (BMI ≥ 27.5) had one and half times increased odds of progression to severity as compared to patients having normal BMI. This association was found to be statistically significant (p- value < 0.05). Conclusion Our findings highlight the significant role of BMI in clinical progression of COVID-19 disease. Patients with underweight and obesity experienced more severe outcomes than those of normal weight when being hospitalized with COVID-19 disease.
Feb 2025 DOI 10.14302/issn.2690-6759.jpar-25-5392
Prince Kyere DwaahCorresponding author
This study investigates the parasitological examination of faecal samples collected from sheep, goats, and cattle at the Techiman Slaughterhouse. Initially, 341 samples were collected, which were subsequently sorted to 327 for analysis due to the loss of data for 14 samples. The primary aim was to identify the prevalence of parasitic infections and assess the health implications for livestock and public health. The samples were analyzed using qualitative and quantitative parasitological techniques, including flotation and sedimentation methods, to detect nematode and cestode eggs. Descriptive statistics were used to summarize the data and the prevalence of each parasite type. The findings reveal significant levels of parasitic infections, particularly strongyle ova and Moniezia expansa, highlighting the need for better management practices in livestock health.
Nov 2024 DOI 10.14302/issn.2690-4829.jen-24-5291
Wang XiaotangCorresponding author
The perpendicular orientation of the proximal alpha helix to the heme plane in chloroperoxidase (CPO) maximizes the influence of its intrinsic helix dipole that has been shown to reduce the “push-effect”, thereby increasing the heme redox potential and fine-tuning the catalytic capabilities of CPO. We investigated the effects of a disruption of the hydrogen bonding network between R26-N37 and A27-N33, formed by the proximal alpha helix, on the CPO structural stability and catalytic profile using site-directed mutagenesis and spectroscopy. The mutant CPO (R26A, N33A, and R26A/N33A) exhibited significant tertiary structural changes and distinct heme coordination, likely, due to destabilization of the proximal helix as a result of the disruption of the proximal hydrogen bonding network. In line with these observations, biochemical characterizations showed that all mutants displayed dramatically different activity profiles relative to that of the WT CPO. Mutant epoxidation and peroxidation activities were markedly enhanced, especially in the R26A/N33A CPO mutant. Moreover, all mutant CPO enzymes exhibited broader pH profiles in both epoxidation and peroxidation activities, including a shift in the optimal peroxidation activity towards pH 3.5 as opposed to pH 2.75. Conversely, the dismutation activity (pH 3.0-5.5) was almost completely lost while chlorination activity (pH 2.75-5.0) was virtually non-existent in all CPO mutants. Our results demonstrate the important role the R26-N37 and A27-N33 hydrogen bond pairs play in the heme coordination and tertiary structure of CPO defining its catalytic capabilities, and also suggest the importance of the proximal helix stability and orientation.
Sep 2024 DOI 10.14302/issn.2694-2275.jzr-24-5256
O. Henderson JeffreyCorresponding author
Stimulating precocious metamorphosis in anuran larvae is an important pedagogical tool for understanding vertebrate development. However, historically, artificially provoking metamorphosis by immersing tadpoles in exogenous inducing agents (e.g., thyroxine, and iodine) compromises the longevity of the experimental animals, resulting in up to 100% mortality within a week. In our undergraduate teaching lab, we house our experimental tadpoles in circular glass dishes having a surface area of 182 cm2. Over the past four academic years this lab was performed, we observed 100% mortality of experimental animals within 10, 12, or 15 days when treated with 10-5 M, 10-6 M, or 10-7 M thyroxine, respectively. Here, we investigated whether increasing the surface area to 413 cm2 using square glass dishes would reduce the mortality of the treated animals. Omnibus Kaplan-Meier survival analysis demonstrates a statistically significant decrease in mortality in tadpoles reared in the larger square dishes compared to those housed in the smaller round dishes (P < 0.05). However, increasing the surface area of our reaction vessels could not rescue survivability of those tadpoles immersed in thyroxine, but did increase survivability of control tadpoles maintained in pond water (P < 0.01), tadpoles subjected to iodine (P < 0.05) or treated with actinomycin D (P < 0.05). These data demonstrate that increasing available reaction vessel surface area reduces overall tadpole mortality during chemically modified metamorphosis in an undergraduate teaching lab setting.
Sep 2024 DOI 10.14302/issn.2690-4721.ijcm-24-5195
Mutile Kavai SusanCorresponding author
The persistence of multidrug-resistant (MDR) Salmonella Typhi (S. Typhi) is a challenge especially in regions where typhoid is endemic. Surveillance of circulating genotypes of MDR S. Typhi is crucial in typhoid acute cases and carriers. This study aimed to investigate genotypic diversity of S. Typhi from symptomatic and asymptomatic children in endemic settings in Nairobi, Kenya. Symptomatic and asymptomatic individuals’ ≤ 16 years were recruited at four health facilities and tested for typhoid through stool cultures. The S. Typhi isolates were subjected to antibiotic susceptibility testing to investigate multidrug resistance. The MDR S. Typhi isolates’ DNA was extracted and illumina sequenced. Raw reads were de novo assembled and analyzed by pathogen-watch. From the 90 sequenced isolates, 60 (67%) were confirmed to be S. Typhi (sequence Type 1 and genotype 4.3.1). Out of the 60 S. Typhi strains; 39 (65%) had plasmids, from these 38 (97%) had IncHI1 plasmids alone. Out of the 60, 59 (98%) S. Typhi isolates had blaTEM-1D. Point mutations conferring reduced susceptibility to quinolones were detected in 42 (70%) of S. Typhi isolates, from these; 14 (33%) had gyrA S83Y , and 28 (67%) gyrB S464F genes, respectively. This study reports 4.3.1 (H58) as the most dominant S. Typhi genotype responsible for spread of MDR phenotypes carried on IncHI1 plasmids. Presence of MDR S. Typhi with resistance genes such as blaTEM-1Dand reduced susceptibility to ciprofloxacin especially among asymptomatic individuals, reiterates the need for use of typhoid conjugate vaccine among vulnerable children as a control and prevention measure against typhoid.
Sep 2024 DOI 10.14302/issn.2690-4721.ijcm-24-5126
D. N Girah.Corresponding author
The development of medical therapy and patients profile has led to a rise in the incidence of nosocomial fungal infection. The frequency of candidiasis has surged worldwide, and the prevalent of healthcare diseases are now Candida species. Candida species causes a range of human infections known as Candidiasis. The non-albicans Candida (NAC) species have recently superseded Candida albicans as significant opportunistic pathogens. The study was conducted to determine the prevalence and antifungal susceptibility of Candida species isolated from various Clinical samples in Rivers State University Teaching Hospital, Port Harcourt, Nigeria. A total of 206 clinical specimens from male and female patients of all ages were sampled in the Department of Microbiology, Rivers State University Teaching Hospital, Port Harcourt, to investigate suspected Candida infections. The isolation and identification of Candida species was done by culture on SDA, Gram stain, sugar fermentation and phylogenetic profiling. Antifungal susceptibility pattern was done by Disc Diffusion method using Fluconazole, Ketoconazole, Miconazole, Nystatin and Itraconazole. The results showed that out of 206 specimens, 44 isolates (21.4%) were identified, with the majority (56.82%) from high vaginal swabs (HVS), followed by urine (31.82%) and oral swabs (11.36%). The age of patients ranged from four months to 73 years giving a Mean Age 1.86+ 0.344, with females (85.4%) outnumbering males (13.6%). Prevalence of Candida spp revealed Candida albicans (50%), Candida krusei (18.2%), Candida parapsilosis(11.4%), Candida glabrata and Candida tropicalis (9.1%) respectively and Candida pelliculosa (2.2%), with C. albicans being the most prevalent. The antifungal susceptibility testing among the azoles showed that Fluconazole (79.5%) and Ketoconazole (77.3%) were most sensitive agents against isolates from HVS, urine and oral swabs respectively and Itraconazole (34.1%) was most resistant especially to those from oral swabs. This study highlights the increasing prevalence of NAC species over Candida albicans and the growing resistance of Candida isolates to commonly used antifungal drugs. Diagnosis of these species of Candida and sensitivity to antifungal agents are critical components to treatment, particularly for patients with severe underlying illnesses who are hospitalized.
Jun 2024 DOI 10.14302/issn.2381-862X.jwrh-24-5099
Schwarz SilkeCorresponding author
Parents' and siblings’ role model motivation and function could play an important role in positively influencing both their own media behavior and that of family members. To investigate whether parents and siblings consciously take on this role model function, their intentions were being evaluated with a standardized questionnaire before a 6-week media fasting intervention. 135 pairs of parents and 178 pairs of children were included. A major component of the parents' media fasting intention to media fast was to be a role model for their children. This was particularly related to the idea that media fasting has something cleansing about it, as well as the hope of becoming more attentive and calm as a family. These parents seem to want to strengthen family cohesion and climate and protect their children from excessive media consumption. Children who want to be role models for their parents also intend to have a positive influence within the family and want to be role models for their siblings. Regression analyses revealed several predictors of the parents' intent for role model function: the hope of becoming more attentive and calm as a family, the view that media fasting has something cleansing about it, and the perception that it is good for one's children to use less digital screen media, and, inversely, age (R2 =.35). The best predictors of the corresponding intention among the children were the desire to be a role model for their siblings, for the family to do more together again and, as for the parents, a younger age (R2=.57). The intentions of both groups are different, but the possibility of using less media is perceived as sensible. The role model function appears to be a relevant motivating and influencing factor regarding the conscious use of digital screen media and regulation of screen time. This should be taken into account when developing interventions.
May 2024
Almekhlafi KaylaCorresponding author
This exploratory study investigates factors and consequences of underdiagnoses or late diagnoses of attention deficit hyperactivity disorder (ADHD) in females favoring males in the referral, diagnosis, and treatment processes resulting in gender disparities. A literature review in PubMed, PsychINFO, PsychArticles, and PsychiatryOnline from 2010 to 2023 underscores significant implications of delayed ADHD diagnosis in females, hindering timely access, support, and interventions during critical developmental years. Factors associated with underdiagnosis of ADHD among girls include gender differences in symptomology presentation, comorbidity, and gender bias among parents, teachers, and healthcare providers. We highlight the role of ethnicity and cultural factors. This bias prevents girls from receiving necessary ADHD support and treatment, impacting their health, social, and economic outcomes into adulthood. We summarize strategies to urgently address gaps in ADHD research and practice. Raising awareness among communities, healthcare providers, educators, and parents is vital to alleviate these gender disparities. By illuminating factors contributing to delayed diagnoses, the study informs policymakers and stakeholders, facilitating targeted interventions to improve early detection and treatment outcomes for females with ADHD.
May 2024 DOI 10.14302/issn.2998-4122.jlr-24-4985
Wondemagegne EliasCorresponding author
Despite a large number of studies examining syntactic features that are predictive of second language (L2) writing quality, assessed by human raters at the university level, few have systematically investigated this link using a large set of indices in the foreign language learning (EFL) classroom context. The current study sought to determine the extent to which a variety of syntactic complexity and sophistication indices are associated with and may predict writing quality by analyzing 30 argumentative essays written by undergraduate EFL students in an Ethiopian university classroom setting. To represent syntactic complexity as a multidimensional construct, we used conventional absolute measures, fine-grained clausal and phrasal indices, and newly proposed sophistication indices related to the use of verb argument constructions (VACs) indexed by TAASSC (Tool for the Automatic Analysis of Syntactic Sophistication and Complexity; 17. Essays were graded, and five separate predicted models of writing quality were created utilizing each complex feature index and all of the measures. Robust predictors of writing quality were identified at both syntactic complexity and sophistication dimensions. Regression analyses showed that the combined model including both fine-grained clausal complexity and VAC-based indices could account for 53.6% of the variance (the largest amount of variance in the study) in writing scores. The finding indicates that the inclusion of diversified adverbial modifiers and nonfinite clauses such as modal auxiliaries controlled by less frequent verbs were predictive of higher-quality writing. These findings shed light on some characteristics of L2 learners' writing growth and enable us to draw pedagogical implications for teaching and assessing writing in the Ethiopian EFL context.
Apr 2024 DOI 10.14302/issn.2329-9487.jhc-24-5040
Dangwe Temoua NaibéCorresponding author
Objective Hypertensive crisis is an increasingly frequent medical condition in our context. Its management in medical emergencies is a real challenge for physicians. Few data on hypertensive crisis are available in Chad. The aim of this study was to investigate the epidemiological, clinical and prognostic characteristics of hypertensive crisis in the medical emergency department of Reference National Teaching Hospital in N'Djamena. Patient and methods This was a prospective cohort study running from 1er March 2020 to October 31 2020. Patients presenting with a sudden and severe rise in blood pressure (systolic ≥ 180 mmHg and/or diastolic ≥ 110 mmHg) with or without acute target-organs damage, had been consecutively included and followed up over a period of one (01) month. Epidemic and clinical characteristics on admission, and morbidity and mortality parameters during the course of the disease were collected. The Kaplan-Meier method and the Cox model were used to analyze survival and factors associated with death, with a significance level of p<0.05. Results Of the 3978 hypertensive patients admitted to medical emergencies, 252 had a hypertensive crisis, i.e. a prevalence of 6.3%. Two hundred and seventeen (217) patients were included in the study, divided into 149 cases (69%) of hypertensive emergency and 67 cases (31%) of hypertensive hypertensive urgencies. The mean age of the patients was 55.2 ± 14 years (20 and 80 years) and 67% were male. Hypertension was known in 138 patients (64%). At least one complication was present on admission in 69% of patients. Complications were classified as cardiac (50.7%), neurological (38.2%), kidney impairment (46.5%) and ocular (46.1%). The average number of antihypertensive drugs used was 2 ± 0.83 14. Calcium antagonists (86.5%), diuretics (35.5%), converting enzyme inhibitors or angiotensin II receptor antagonists (33.3%) and betablockers (18%) were the pharmacological classes prescribed. Good compliance during follow-up was observed in 124 patients. One-month survival was 84% for all patients, with a 16% mortality rate. Factors associated with death were the duration of hypertension, and the occurrence of cardiovascular, renal dysfunction and ocular disease (p < 0.05). Conclusion Hypertensive crisis is a frequent pathology in sub-Saharan Africa, with high morbidity and mortality. Prevention requires early detection and effective management of hypertension.
Apr 2024 DOI 10.14302/issn.2641-4538.jphi-24-5044
Li ShujunCorresponding author
Objective To study changes of cell morphology in BALF in children with Mycoplasma pneumoniae pneumonia (MPP). Methods From December 2021 to May 2022, a group of 32 children diagnosed with Acute MPP and admitted for treatment in the Pediatrics Department and PICU of the First Affiliated Hospital of Xinxiang Medical University were selected for our study. These patients underwent bronchoalveolar lavage as part of their clinical assessment. For comparison, we included a control group comprising 10 children who were not infected but had bronchial foreign bodies. We investigated the cellular composition in the bronchoalveolar lavage fluid (BALF) using Wright-Giemsa staining and microscopic evaluation, aiming to understand the relationship between shifts in cell proportions and extra-pulmonary symptoms associated with MPP. Results In this study, a total of 42 cases were enrolled, with 32 cases in the study group and 10 cases in the control group. There were no statistically significant differences in gender, age, height, weight, and BMI between the two groups (p > 0.05). The study group exhibited significantly higher levels of neutrophil percentage (GRA%), CRP, D-dimer, and LDH in blood routine tests compared to the control group (p < 0.05). Furthermore, the proportions of neutrophils (%) and macrophages (%) in BALF were significantly higher in the study group compared to the control group (p< 0.05), while the proportion of lymphocytes (%) in BALF showed no statistically significant difference between the two groups (p> 0.05). Conclusion In the acute phase of MPP in children, BALF is predominantly composed of neutrophils. A lower proportion of lymphocytes in BALF is associated with a higher incidence of extra-pulmonary manifestations and longer hospitalization duration.
Mar 2024 DOI 10.14302/issn.2642-3146.jec-24-4935
Yakubu SufyanCorresponding author
Promoting responsible energy usage in student hostels and residential buildings plays a crucial role in ensuring sustainable development. By implementing cost-efficient strategies for managing and conserving energy, both students and homeowners can not only reap economic and social benefits but also mitigate the adverse environmental effects associated with energy consumption. Unfortunately, student hostels and residential buildings in developing countries like Ghana are falling behind in the adoption of energy efficiency and management practices, thereby missing out on valuable implementation opportunities. This study investigates the potential for energy efficiency and conservation measures in student hostels, specifically the GETFUND hostel of the University of Energy and Natural Resources in Ghana. The hostel's monthly energy consumption is approximately 64,929.458kWh, which translates to $5,667.20. The objectives of the study include analysing the current electricity consumption pattern, identifying energy misuse, and recommending measures to save energy, as well as calculating the financial benefits of implementing energy management practices. The methodology employed is an energy audit approach. The results of this study can contribute to overall energy conservation efforts in Ghana and may be applied to other university residence halls in sub-Saharan African countries with similar climatic and energy-use characteristics. In a broader sense, the primary objective of this study is to enhance the energy efficiency of the GETFUND hostel and minimize energy wastage, resulting in substantial financial savings.
Feb 2024 DOI 10.14302/issn.2379-7835.ijn-24-4938
Suh MinaCorresponding author
Public health interest in vaccinations and immune protection has increased with the COVID-19 pandemic. Dairy products are an important source of protein and other nutrients, and there are unresolved research questions regarding the potential health impact of dairy products on the enhancement of immune response. A systematic literature review was conducted to synthesize the published literature reporting the effects of dairy interventions on: 1) the vaccine-specific immune response and 2) immunoglobulins in the absence of vaccination. To assess study validity and quality, we used the Academy of Nutrition and Dietetics Quality Criteria Checklist. Sixty-one studies (59 clinical trials, 1 cohort, 1 cross-sectional survey) were included, spanning 1983-2017. Ten trials evaluated the effect of dairy intervention on vaccine-specific IgG, IgA, IgM, vaccine-specific antibody titers, seroprotection rates, or seroconversion rates. Of these, 7 reported significant increases with dairy interventions for post-vaccine tetanus antibodies, mean change in tetanus antibody level, total antibody titers to flagellin from Salmonella Adelaide, mean antibody titers to influenza B, influenza-specific IgA and IgG levels, and seroconversion or seroprotection rates for influenza A and B. Fifty-six studies evaluated dairy’s effects on immunoglobulins without vaccinations. The results were heterogenous, with some studies reporting significant enhancement of immunoglobulins (IgA, IgE, or IgG), while others observed no differences between groups. Clinical relevance of the immunoglobulin changes was not investigated in these studies. Dairy products and their components could enhance the efficacy of vaccines. This review highlights the evidence gaps and provides a potential roadmap for additional research.
Jan 2024 DOI 10.14302/issn.2379-7835.ijn-23-4802
Fatema AkterCorresponding author
The host's health may benefit from the probiotic microorganisms found in many products available on the market. In addition to food, these products include dietary supplements, food for special medical purposes, medicines, cosmetics, and medical devices. These products have anywhere from one to a dozen strains of bacteria from the same or different species, and sometimes they also have strains of fungi. Since the health benefits of probiotics depend on the strain, the number of cells in a dose, and the absence of pathogenic microorganisms, it is crucial to regulate the quality of probiotics. Depending on how a product is classified, how it looks, and how many microorganisms it has, it is very important to count and identify the microorganisms correctly. We investigated nine probiotic products in this study: five commercially available probiotic supplements and four probiotic drinks. The majority of commercial products did not contain all of the labeled lactic acid bacteria, nor did they contain any possibly harmful microorganisms. To ensure that consumers in Bangladesh obtain good products, probiotic-containing product rules and regulations should be developed. Furthermore, it should be the duty of probiotics-containing product manufacturers to provide consumers with information that is accurate, reliable, and compliant with legal and scientific requirements
Jan 2024 DOI 10.14302/issn.2374-9431.jbd-23-4842
Wissam Younes SamerCorresponding author
Over the past 20 years, the number of persons with diabetes has more than doubled globally. The purpose of this review article is to investigate the connection between certain vitamins and diabetes. Diabetes patients have been found to have decreased amounts of certain antioxidant vitamins including A, C, and E, presumably as a result of the requirement to control oxidative stress brought on by problems with glucose metabolism. Retinol-binding protein has regulatory and adipocytokine function. Thiamine, pyridoxine, and biotin levels are also decreased in diabetics. Studies have shown that it restricts the absorption of several nutrients, such as vitamins B9 and B12, thus diabetics must frequently replenish these vitamins. Low vitamin D levels increase the risk of developing diabetes and associated complications, such as cardiovascular disease. Although some studies indicate that vitamin K supplementation can enhance glucose metabolism, it is not known if vitamin K supplementation can prevent or repair oxidative damage. Numerous studies have demonstrated the detrimental consequences of excessive vitamin supplementation. The association between a few nutrients—specifically, vitamins A, D, C, B3, B6, B9, Zn, B12, E, B1/K, and irons—and the already mentioned pathways implicated in diabetes—as well as their potential regulatory activity—will be analyzed in the review that follows.
Dec 2023 DOI 10.14302/issn.2690-4829.jen-23-4799
Gartner PatriziaCorresponding author
Polymer electrolyte membrane (PEM) technologies hold promise for sustainable energy solutions, yet pinhole-related challenges persist. Our research introduces a novel biohybrid approach to self-healing, enhancing multiple healing cycles with minimal membrane disruption. Initial steps involve immobilizing enzymes on a polymeric membrane. This study establishes the immobilization process and analytical framework through enzyme immobilization on polypropylene. Applicability and stability are investigated, laying groundwork for potential Nafion™ applications and advancing climate neutral energy. Qualitative analysis employs colorimetric p-NPA assay on polypropylene-immobilized lipase from Candida rugosa (CRL) and Lipase B from Candida antarctica (CALB). Both enzymes hold their temperature optimum at 50°C which is increased by 10°C via immobilization. Diisopropylcarbodiimide (DIC) is optimal for immobilization. Synchronous enzyme and DIC addition is advantageous. After 8 reuse cycles, immobilized enzymes retain 54.3% residual activity. Immobilizates exposed to PEM fuel cell conditions show better stability due to covalent immobilization than free CRL. Yet, declines occur under stressors like 60 °C and concentrated alcohol. Immobilizates remain resilient at pH 3 and under oxidizing as well as reducing conditions constituted by varied gas atmospheres. Considering PEM fuel cells' operational range, in-depth investigations across conditions are vital. Future studies target long-term PEM fuel cell lifespans, focusing on extremophilic enzymes or modifications for high-temperature stability. Subsequently, the transferability of the immobilization method to Nafion™ shall be deliberated based on the outcomes.
Oct 2023 DOI 10.14302/issn.2769-2264.jw-23-4694
Alotaibi MajebCorresponding author
This study aims to determine an empirical relationship between the biological and chemical oxygen demands of industrial effluent running through the membrane bio reactor-based Al-Hasa common industrial wastewater treatment Plant. The relationship between these two parameters was investigated over one month (NOV– 2021 to OCT-2022). The values of R² show that its impossible to predict the result of BOD5 based on COD, however the result of r in AUG month shows a strong relation between them. The average biodegradability index over the one year is less than 0.6, showing that effluent is highly polluted, and biodegradation will not proceed. The plant’s performance in terms of BOD5 and COD removal was very poor over the whole year, however, the months AUG, SEP and OCT months shows a satisfactory performance, this is because a large amount of Industrial wastewater entering the plant contains both organic and inorganic components.
Aug 2023 DOI 10.14302/issn.2379-7835.ijn-23-4701
Steiner-Hofbauer VerenaCorresponding author
Young adulthood is a sensitive phase that comes with many developmental tasks. Successful mastery of these challenges is crucial not only for long-term physical and mental health. A positive relationship with one's own body and associated healthy dietary and behavioral patterns are essential building blocks for healthy adolescence and adult life. But being overly concerned with healthy food may lead to decreased quality of life and negative (mental) health outcomes. This study was conducted via a cross-sectional online questionnaire including the Düsseldorfer Orthorexieskala(DOS), the WHO Quality of Life BREF and questions about life style and nutritional habits. We investigated the prevalence of ON and its relationship with different aspects of quality of life and lifestyle factors (sport and nu trtional habits) in a sample of young adults in Austria. No significant difference in the DOS-scores of male and female participants were found and no significant difference between students and non-students. High DOS-scores significantly impair all three domains of QoL. We did not find a significant relationship between high DOS-scores and taking nutritional supplements or being vegan, vegetarian or omnivore. Participants with high DOS-scores spent significantly more hours per week with sport/exercising.
Aug 2023
Almabadi BayanCorresponding author
DADA2 (deficiency of adenosine deaminase type 2) is an autoinflammatory autosomal recessive disease resulting from biallelic loss of function mutations in ADA2 gene. Clinical presentation and age of onset vary widely even among related patients, and variability of symptoms and severity manifestations include bone marrow failure, autoinflammation, immunodeficiency and vasculitis. Here, we report a case of young male with adult onset DADA2, who presented with fever, lower limbs skin rash, joint pain, and anemia resembling systemic lupus erythematous (SLE). DADA2 has an extremely variable clinical phenotype. It was described into three categories: inflammatory/vascular, immune dysregulation, and hematologic. However, the data is scant in describing autoimmunity phenotype in DADA2 and further studies are required to investigate the clinical correlation and presence of autoantibodies. We recommend genetic testing in cases with lupus-like disease especially if there is consanguinity between parents and family history of vasculitis.
Jun 2023 DOI 10.14302/issn.2694-2275.jzr-23-4483
Tamirat HaileCorresponding author
An ecological study on diurnal mammals was carried out in Bayo Community Managed Forest located in Salamago Woreda, South Omo Zone. The objective of the study was to investigate the distribution and conservation challenges of diurnal large mammals in the study area. Based on the habitat type and topography of the study area, total of 11 transect, i.e 7 in forestland, and 4 in Wooded Grassland were laid to collect the data. Besides direct methods, indirect methods such as faecal droppings, fresh tracks, carcass or shell count, den (burrow), hair, and digging were used. Questionnaire and focus group discussions were also used to assess anthropogenic threats in the study area. Data were analyzed using descriptive statistics, SPSS and QGIS software. A total of 20 species of diurnal large mammals belonging to six orders and eight families were identified. The species identified were Cercopithecus pygerythrus, Cercopithecus aethiops, Papio anubis, Erytherocebus patas, Cercopitheus neglectus, Colobus guereza, Equus quagga, Traglaphus strepsiceros, Traglaphus imberbis, Traglaphus scriptus, Medagua guentheri, Sylvicapra grimma, Kobus ellipsiprymnus defessa, Syncerrus caffer, Potamochoerus larvatus, Phacochoerus africanus, Hylochoerus meinertzhageni, Hystrix cristata, Orycteropus afer, and Phataginus temminckii smutus. Seasonal variation in the between habitat types (χ2 = 4.849, df= 1, p<0.05). Totally, 685 and 600 mammals were counted during wet and dry seasons, respectively. On habitat basis, 683 and 602 animals were recorded in forestland and wooded grassland habitats, respectively. Major threats in the study area include poaching, fire, grazing, fuelwood extraction, population growth, habitat modification, overharvesting of resources and invasive species. About 98.44% of respondents had a positive attitude towards Bayo Community Managed Forest. The interference of local community has had the impact on mammal’s species. Habitat based mammals’ management involving participation of Woreda and Zonal Government is recommended for sustainable. The local government should promote the study area and provide appropriate support for its conservation.
Jun 2023
S. Prakasha Gowda A.Corresponding author
Insulin is a frequent peptide hormone addition in serum-free mammalian cell culture media. It contributes in a variety of biological functions, including as promoting cell proliferation, cell cycle progression, and glucose uptake. However, it is unknown how stable insulin is under in vitro cell culture media treatment conditions. The instability of insulin in aqueous solutions has caused a number of issues, necessitating the development of new therapeutic strategies that can keep insulin stable and functioning. Such choices are required to accommodate updated insulin delivery guidelines as well as the storage and transportation of insulin. To preserve structural and functional integrity, protein medicines are frequently stabilized with antioxidants in aqueous solutions. In the present study, the effects of the antioxidants disodium ethylenediaminetetraacetic acid dihydrate (EDTA) and sodium selenite (Se) and their ability to scavenge free radicals on insulin stability in the medium Dulbecco's Modified Eagle Medium (DMEM) and Roswell Park Memorial Institute (RPMI) were examined. To investigate the stability of human recombinant insulin, in vitro serum-free DMEM and RPMI media were utilized for 5 days at 37˚C containing different EDTA and Se concentrations. Reversed phase high performance liquid chromatography (RP-HPLC) was used to detect and quantify insulin. Sodium dodecyl sulfate polyacrylamide gel (SDS-PAGE) electrophoresis was used to assess conformational stability. The results demonstrated that, when EDTA and Se were added separately to DMEM and RPMI media, insulin stability was improved compared to when neither compound was added.
Jun 2023
Rifkatu Kambel DogaraCorresponding author
The increasing demand for environmentally-friendly materials has led to a surge in research on the production of biodegradable polymers. In this study, we investigate the synthesis of a biodegradable polymer by graft copolymerization of gum Arabic (GA) and polyethylene glycol (PEG). GA, a natural polysaccharide and PEG, a synthetic water-soluble polymer, were used as the backbone and graft monomer, respectively. The graft copolymerization was carried out using benzoyl peroxide as an initiator and performed under nitrogen atmosphere. The resulting polymer was characterized by Fourier transform infrared (FTIR) spectroscopy, Xray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The FTIR spectra confirmed the formation of the graft copolymer, and TGA analysis showed that the copolymer had higher thermal stability than GA. The DTA thermograms indicated two thermal events. The evaporation of water and organic polyethylene glycol components was measured, and the first mass loss was due to the loss of adsorbed and structural water in the gum Arabic, which occurred between 31.87 and 180°C, while the second, corresponding to the pyrolysis of polyethylene glycol functional groups and polysaccharide decomposition, resulted in a 70% mass loss. SEM morphological analysis of gum Arabic showed aggregates of high irregularity in particle shape. The cracks and holes obtained in the Gum Arabic micrograph disappeared from the new gum Arabic-graft-polyethylene glycol, leaving a smooth surface with scattered particles in the image, which was due to the grafting copolymer. From the XRD patterns, the percentages of the amorphous and crystalline phases were determined. The results show that gum Arabic has a 78% degree of crystallinity, whereas gum Arabic-graft-polyethylene glycol has the lowest value of 51%. Biodegradation activity was observed using the fungus Aspergillus flavus on different days on gum Arabic-g-polyethylene glycol. The results clearly showed inhibition zones with a change in the state of the copolymer from solid to liquid from days 8 to 14. These results indicate that the GA-PEG copolymer has potential as a biodegradable material for use in various applications, such as packaging, agriculture, and medical industries.
Jun 2023 DOI 10.14302/issn.2377-2549.jndc-23-4431
Ifeanyi John ObibuenyiCorresponding author
Background of this paper investigates dogonyaro-leaf-extract as inhibitor for aluminum corrosion in 0.3-M hydrochloric acid, and its acceptability as original. In the methods, the extract was analyzed for phytochemicals and corrosion test performed on aluminum sheet before immersion in acid incorporated extract. Electrochemical Impedance Spectroscopy (EIS), tests were performed over frequency of 100 KHz–10 mHz and 10 mV peak to peak perturbation amplitude to obtain the corrosion potential. Tests were run at 30oC ± room temperature in aerated quiescent solutions. In weight loss method, coupons were suspended in aerated solutions before immersion in 20% mixture of sodium hydroxide and zinc dust to stop further corrosion. Morphology of the mirrorlike finished arid surface aluminum was measured with scanning electron microscope SEM. In the results, various phytochemicals were observed; significant effect of incorporating inhibitor on EIS data recorded and optimum extract efficiency was 99.46%, at 10 g/l, 60oC, within 6 hours. This result was validated and 99.3% efficiency obtained. Introduction of extract into acid corrodents caused increase of charge transfer resistance and reduced double layer capacitance. A warm arid clean coupon evolved after SEM test. In conclusion, there was increase in efficiency of inhibition as inhibitor concentration and temperature increased. Similarly, close responses towards the factors for Inhibition occur. Measured polarization showed that extract inhibited both cathodic and anodic reaction processes and thus, is classified as mixed type inhibitor. The investigations thus proved the extract as excellent corrosion inhibitor for aluminum in 0.3-M hydrochloric-acid.
May 2023 DOI 10.14302/issn.2574-4488.jna-23-4545
Papiashvili N.A.Corresponding author
This study aimed to analyze pharmacological actions of phenolic compound luteolin on the renal and cardiac hypertrophy, blood pressure (BP), baroreflex sensitivity (BRS), levels of epoxyeicosatrienoic acids (EETs), prostaglandin E-2 (PGE-2) and endothelin-1 (E1) in plasma in the 2 kidney - 1 clip (2K-1C) model of renovascular hypertension (RVH). All animals, were randomized into 2 groups: control (normal) I - sham-operated, II- RVH male Wistar rats, which after 4 weeks of surgical intervention secondly randomized to control II group, treated 0.1% dimethyl sulphoxide (DMSO) and main group - with luteolin in 15 DMSO, 3 mg/kg body weight, intraperitonially, during 2 weeks. ET-1, EETs and PGE2 levels investigated in carotid artery blood plasma and analyzed using ELISA kits. All data statistically analyzed using the SPSS-10.0 program. In RVH rats BP increased by 32%, cardiac and right kidney hypertrophy and reduction in parasympathetic component of BRS by 40% and sympathetic by 39%. The plasma level of total trans-EETs and PGE2 in RVH rats decreased by 44% and 50% respectively, while the level of ET-1 increased by 67%. Two weeks treatment with luteolin lowered BP, improved parasympathetic, without marked changes in sympathetic component of BRS. Deremodeling of cardiac and renal hypertrophy under prolonged treatment with luteolin accompanied with increasing in the level of EETs by 44%, PGE-2 by 50% and markedly reducing of plasma content of ET-1 (by 60%). Inhibition of EET hydrolase using low doses of luteolin provides beneficial cardio and renoprotective action in experimental model of RVH.
Mar 2023 DOI 10.14302/issn.2994-6743.ijstd-22-4411
Tunta AbaynehCorresponding author
Background HIV causes immunosuppression, which reduces the body's immunity to diseases like COVID-19 by decreasing CD4 cells. The goal of this study is to determine whether persons living with HIV/AIDS (PLWHA) who are using anti-retroviral therapy (ART) are willing to accept the Coronavirus illness 2019 vaccination and the factors that influence their decision. Method From February 15 to March 15, 2022, 332 PLWHA on ART participated in this facility-based cross-sectional study. The correlation of outcome variables with predictors was investigated using binary and multivariable logistic regression. Result Of the 332 study participants, 110 (33.1 %) and 118 (35.5 %) had poor knowledge and a negative attitude toward the COVID-19 vaccination, respectively. Approximately 31 (9.3%) of study participants believe ART medications can also prevent COVID-19 infection. The willingness to receive the COVID-19 vaccine was 66.3 % with a 95 % confidence interval (60.9, 71.5). Knowledge, attitude, educational status, marital status, residency, duration, and monthly income were all significant predictors of willingness to receive COVID-19 vaccination. Conclusion Increased sensitization regarding the necessity of vaccines and the negative consequences of diseases, particularly among PLWHA, should be emphasized in the preparation of the COVID-19 immunization campaign involving prominent individuals such as health professionals and religious leaders.
Feb 2023 DOI 10.14302/issn.2643-2811.jmbr-22-4302
Edeowede Abhulimen AbelCorresponding author
The Gas Turbine operation was investigated with a view to evolving a system designed to provide a realistic imitation of the controls and operation of a Gas Turbine, used for training purposes. Operator Training Simulator has been widely adopted by many industries being a computer simulation which attempts to model a real-life plant so that it can be studied. A well trained and skilled operator is key in increasing power plant safety and productivity. Therefore, enabling quality training for operators is becoming more important as they need to handle increased load of information and duties whereas the lack of training is a major reason for inadequate performance. By changing variables in the simulator, predictions are made about the behaviour of the engine. It is a tool to virtually investigate the behaviour of the system while in operation. This work becomes indispensable because it is prohibitively expensive or simply too dangerous to allow trainees use the real equipment in a power plant. The Gas Turbine operation’s simulator is born from Object Oriented Programming, employing key programming languages. The simulator design focused on specific tasks in the operation of the Gas Turbine which include; startup, synchronization and monitoring of vital parameters like vibration, temperature, pressure, and angle of the Inlet Guide Vane. The statuses of various valves, pumps and motors as well as the Performance of actuators and the response of concatenated components are also being tracked. The simulator was found to effectively mimic a real plant life. With this simulator, trainee operators in Gas Turbine can spend time learning valuable lessons in a "safe" virtual environment yet living a lifelike experience. This will go a long way in minimizing operators’ error in GT power plants, thereby curtailing power outages and conserving power plant components.
Dec 2022 DOI 10.14302/issn.2639-3166.jar-22-4300
E. E. Elshukry ElsadigCorresponding author
Agriculture Research Corporation, Horticultural Crops Research Center-Shambat
Two off-season experiments were conducted during 2015/16 and 2017/18 at Shambat Research Station Farm, Khartoum, Sudan, to investigate the effects of large (2-3 cm) and small (1-2 cm) sets size of onion variety Baftaim (S) and two chemical fertilizer (Urea 240 kg/ha) and NPK(15:15:15) (120 kg/ha) in addition to organic fertilizer (Elkhaseeb 20 tons/ha) and their combinations (Urea+ Elkhaseeb and NPK+Elkhaseeb) on off-season production. The experimental units were in split plot design, with set size and fertilizers as main and sub plots, respectively, with three replications. The yield was evaluated as bulb weight and yield/ha, whereas, the quality was evaluated as marketable and percentage of double and bolted bulbs, TSS and dry matter. The results reflected no significant differences in bulb weight due to set size, fertilizer type and their interactions, however, the heaviest bulbs were obtained by Elkhaseeb + urea and its interaction with the large set size in both seasons. The small set size gave the highest yield, organic fertilizer (Elkhaseeb) alone or in combination with urea gave the highest yield, whereas, the lowest one was obtained with the combination of organic fertilizer with N P K. The bulb quality was also affected by set size and fertilizer type as the highest marketable yield was obtained by small set size and fertilizer combination (organic + urea) or urea alone. No significant effects on TSS and dry matter percentage due to set size, fertilizer type and their interactions were noticed. The highest marketable yield, TSS and dry matter were obtained by Elkhaseeb (organic fertilizer) with mineral fertilizers (urea or NPK) with the small set size rather than organic or mineral fertilizer alone. It could be concluded and recommended that onion set size of about 1-2cm diameter with an organic - mineral fertilizer combination could improve off-season onion yield and quality. However, further studies are required to find the proper fertilizers dose.
Nov 2022 DOI 10.14302/issn.2835-513X.ijl-22-4266
O.D AbuCorresponding author
Department of Biochemistry, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
The present study investigated the effect of aqueous and ethanol extracts of Dialiumguineense stem bark on lipid profile and CCl4- induced histological changes in liver of Wistar rats. Adult male Wistar rats (n = 25) weighing 160 – 180 g (mean weight = 170 ± 10 g) were randomly assigned to five groups (5 rats per group): normal control, CCl4 control, silymarin, aqueous extract and ethanol extract groups. With the exception of normal control, the rats were exposed to CCl4 (single oral dose of 1.0 mL/kg body weight, bwt). Silymarin group rats were administered standard hepatoprotective drug, silymarin, at a dose of 100 mg/kg bwt, while those in the two treatment groups received 1000 mg/kg bwt of aqueous or ethanol extract orally for 28 days. Lipid profile parameters were determined in plasma, while rat liver was subjected to histopathological examination. The results showed that the levels of total cholesterol (TC), triacylglycerol (TG), high-density lipoprotein cholesterol (HDL-C), very-low density lipoprotein cholesterol (VLDL-C), low-density lipoprotein cholesterol (LDL-C) as well as atherogenic index of plasma (AIP) were significantly lower in CCl4 control group than in normal control group, but they were increased by extract treatment (p < 0.05). However, there were no significant differences in atherogenic coefficient (AC) and cardiac risk ratio (CRR) among the groups (p > 0.05). Carbon tetrachloride (CCl4) markedly disrupted the structure of hepatocytes and induced steatosis (intra-hepatocyte fat in-growth and inflammation) which was predominantly microvesicular. However, treatment with aqueous and ethanol extracts of D. guineense stem bark showed marked regeneration of hepatocytes (unremarkable hepatic lobular architecture). The toxic hepatic injury induced by CCl4 was significantly blocked by the plant extracts.
Nov 2022 DOI 10.14302/issn.2641-4538.jphi-22-4235
E. Obeten KebeCorresponding author
Department of Human Anatomy, Faculty of Biomedical sciences, Kampala International university, Uganda
This study investigates the effect of Aqueous extract of abelmoschus esculentus on the microanatomy of the small, large intestine and stomach and the body weight of Wister rats. Twenty-one adults male wistar rats weighing between 100-120 grams were assigned into three groups consisting of seven rats each; Group A (control), Group B (low dose), and Group C (high dose). The rats in the control group were fed with fed with feed and water only while the rats in groups B and C were treated with 0.1mg/kg body weight and 3.0mg/kg body weight of abelmoschus esculentus respectively for 14 days. At the end of administration, the final weights of all rats were recorded before sacrifice using cervical dislocation and the small, large intestine and the stomach were harvested, processed and stained using H&E stain. The results were revealed as significant (p<0.05) increased in the mean body weight compared with the weight in the control groups and experimental groups. The treated animal groups revealed increased cellularity, focal metaplasia of the mucosal cells with villous disruption in the small intestine and dysplasia of the mucosal with loss of epithelial shape in large intestine. The stomach histology showed gastric pits with goblet cells smooth muscles layer and surface epithelium in the control group. Sections from the low dose treated group showed deep epithelical gastric pit areas with marked depletion of pits and goblet cells while the high dose treated group revealed dysplasia of gastric pits, goblet cells and smooth muscles appear mildly eroded.
Oct 2022
Abolpour BahadorCorresponding author
Department of Chemical Engineering, Sirjan University of Technology, Sirjan, Iran
In this study, flow hemodynamic parameters and settling of LDL particles in healthy ideal and ideal with stenosis coronary artery have been studied using the Open FOAM software. Not only the effect of movement of the vessel on particles depositions have been studied, but also both non-Newtonian and Newtonian behaviors of blood have been investigated. The particle's motion and deposition have been simulated. It has resulted that only in small vessels, non-Newtonian behavior of blood can be seen and in bigger vessels, there is no remarkable difference between two Newtonian and non-Newtonian models. Vessel movement has no important effects on entered shear stress on its wall, but the alteration in flow lines causes a 70% increment in particles depositions on a vessel with stenosis. This shear stress has no considerable changes with inlet velocity alteration, but it has intensive dependence on geometry in the vessel with stenosis (13 times more oscillation in stenosis location than a healthy vessel).
Oct 2022 DOI 10.14302/issn.2641-4538.jphi-22-4313
Niyonkuru MathieuCorresponding author
Public Health Department, Mount Kenya University Rwanda
Data quality is defined as a measure of data status that fulfills the following elements: accuracy, completeness, consistency, reliability, and if the data is current. The World Health Organization (WHO) reported that only 40% of all countries have an adequate system to collect information on birth and deaths. Even though the system is there, vital registration systems are inaccurate and incomplete in developing countries. In Rwanda, maternal health related data was over-reported more than other indicators. These are the main reasons for conducting the study to investigate the data quality of four maternal and newborn health indicators reported by Rwandan Western Province health centers. This concurrent-mixed method study included 61 data managers and 12 key informants. Routine data quality assessment tool and structured interview guide were used to collect data. Descriptive statistics were used to get proportion of respondents’ socio-demographic characteristics. The analysis was done for assessing median of data quality index. The results show that 55.7% of data managers were male while 58.3% of responsible of maternity were female. Majority (58.9%) of participants was in age’s category from 33-42, 61.6% have A1 education level and 53.4% have experience less than five years. Data quality index of one out of four (25%) MNH indicators was found below 95% accepted by WHO. The main reasons for insufiscient quality of data are lack of data validation meetings (57.5%) and incompleteness of reporting tools (36.4%). Monthly data validation meetings chaired by HC leaders are important to contribute to high-quality data in healthcare settings. Supportive supervisions done in data quality and management have to be organized in a supportive, and educative way.
Sep 2022 DOI 10.14302/issn.2639-3166.jar-22-4247
Haroun Mohamed Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri- Sudan.
The greater wax moth considered one of the most worldwide-spread pests of the bee wax. This Study was designed to investigate the insecticidal activity of Carumcarvi, Eculaptus camaldulensis and Nigella sativa against 3rd larval instar of G.mellonellathrough laboratory screening. Five concentrations (5%, 7.5%, 10%, 12.5% and 15%) of each plant extract were used in this experiment. Mortality (%) was recorded after 24, 48, 72 and 96 hrs post treatment. The results showed C. carvi, E. camaldulensis and N.sativahave insecticidal activity against 3rd_ instar larvae of G. mellonella. The highest concentration (15%) caused 90% ,86.7% and 80% larval mortality after 96 hrs for C. carvi,E. camaldulensis and N.sativarespectively. The statistical analysis revealed that there is a significant difference (p< .001) between all treatments and control. The results also clearly demonstrate that the C. carvi are significantly more toxic than E. camaldulensis and N. sativa, whereas the LC50 values were 5.4% forC. carvi,6.0% for E. camaldulensis and 6.2% for N. sativa.
Sep 2022 DOI 10.14302/issn.2377-2549.jndc-22-4277
Sivets GrigoriiCorresponding author
Institute of Bioorganic Chemistry, National Academy of Sciences, 220141 Minsk, Acad. Kuprevicha 5/2, Belarus.
A multistep synthesis of 2-chloro-9-(2′-deoxy-2′-fluoro-β-D-arabinofuranosyl) adenine (clofarabine) is described from methyl β-D-ribofuranoside. A new improved method for preparation of 1,2-diacetyl D-ribofuranose derivative was developed via acetolysis of tri-O-pivaloylated D-ribofuranoside and plausible mechanism of the reaction was proposed. Synthesis of 3′,5′-di-O-pivaloyl-2,6-dichloropurine β-D-riboside along with isomeric 2′,5′-di-O-pivaloyl nucleoside was carried out by stereoselective glycosylation reaction of 2,6-dichloropurine with peracylated D-ribofuranose followed by regioselective 2´-O-deacetylation of protected β-ribonucleoside with different bases. Mild C2′-β-fluorination of the purine 3′,5′-di-O-pivaloyl ribonucleoside with an excess of diethylaminosulfur trifluoride afforded protected 2,6-dichloropurine 2′-fluoro β-D-arabinoside as the key intermediate. Efficient route to clofarabine was also investigated using anion glycosylation of 2-chloroadenine potassium salt with the 1-α-bromide and potassium tert-butoxide in binary solvent mixture, chromatography for separation of a mixture of anomeric nucleosides (a β/α ratio of 3.0:1) and deacylation of benzoylated 2′-fluoro β-nucleoside. Novel N6-isopentyl clofarabine analogue was synthesized by a direct alkylation of the parent nucleoside
Aug 2022 DOI 10.14302/issn.2641-4538.jphi-22-4245
Rutayisire ErigeneCorresponding author
Department of public Health, Mount Kenya University Rwanda Kigali Rwanda
This study investigated the healthcare provider’s knowledge and attitudes towards induced abortion in Rwanda. A total of 152 healthcare providers from six public hospitals in Kigali city participated in this study. Questionnaires were used to record data on demographics, level of knowledge and attitudes towards abortion law then be cleaned, coded and entered into Excel sheet. Then all data were exported into SPSS version 22 for final cleaning and analysis. The study findings revealed that 54.6% were female, 56.0% were single, and 73% participants said that they attended formal training on abortion care. The study findings revealed that 23.70% healthcare providers had poor knowledge towards legal abortion law, and 57.20% had positive attitude with regards to induced abortion law. The findings revealed that religion and formal training on abortion care were among the factors which were strongly influencing attitudes of health care providers towards induced abortion where protestants were unlikely to have positive attitude with regards to induced abortion (AOR=0.277; 95% CI=0.027-0.377; P=<0.001) compared to participants belonged to catholic religion and participants who were not trained were unlikely to have positive attitude with regards to induced abortion (AOR=0.696; 95% CI=0.056-0.721; P=0.048) compared to trained respondents. It concludes that marital status, category of caregiver, religion, formal training on abortion and level of knowledge were the main risk factors of level of attitude towards induced abortion. More training about induced abortion are highly needed among health care providers to increase related knowledge as well as to eliminate negative attitude towards induced abortion.
Jun 2022 DOI 10.14302/issn.2471-2140.jaa-21-3911
Izadi MortezaCorresponding author
Ozone CRC BMSU Tehran, Iran
Testicular ischemia-reperfusion injury is an urgent situation which needs a timely and precise diagnosis for prevention of testis damages. Here in we investigated ozone/oxygen therapy in Testicular Ischemia/Reperfusion Injury. For this purpose, animals (rats) were divided to four groups; control, torsion/detortion, torsion/detortion + ozone/oxygen (30 µg/ml) and only ozone/oxygen. Four hours after detorsion, in all groups orchiectomy was done -- for measuring the oxidative stress and mitochondrial toxicity parameters. Also, we preformed analysis of testicular spermatogenesis after 90 days. Our data showed that testicular torsion-detorsion induced significant increase in mitochondrial toxicity and decrease of spermatogenesis, malondialdehyde and GSSG levels were shown. Also, spermatogenesis, a remarkable decrease in malondialdehyde GSSG levels and mitochondrial toxicities were observed when compared with torsion-detorsion group. Obtained results for this research showed that ozone/oxygen therapy enhance antioxidant properties in the spermatogenic cells and protects testes from ischemia-reperfusion injury.
Jun 2022 DOI 10.14302/issn.2328-0182.japst-22-4193
Tariku Belay YilkalCorresponding author
School of Biomedical Sciences, College of Health Sciences, Makerere University, Kampala, Uganda
The strategy for safe drug discovery and development has limited clinical success as compared to wasted time and resources annually. This is due to the fact that the results of multiphase preclinical trials are less likely to make an accurate early prediction on the safety of test compounds to progress into the clinic as a valuable therapeutic agent. A lot of time and resources has been wasted in the multistage processes of drug discovery and development that does not work at the end of the procedure every year. During pre-marketing stage, for instance, the number of unsuccessful clinical trials are greater than the successful one because of safety issues. A toxicity study at different stages of preclinical and clinical trials is a routine procedure to investigate the undesirable side effects of test compounds being manifested on the natural processes of living things. It deals with the effect and mechanism of toxicity of test compounds that triggers different biological responses on different organ systems. The biological responses that would be manifested as a result of interaction between the receptors and active molecules of a test compound could be desirable pharmacological effect or undesirable side effect or both responses are manifested simultaneously depending on the selectivity or specificity of the molecule of a test compound for its receptor subtype which makes safe drug discovery and development very challenging. The response efficiency of the body (the net outcome of the body’s biological reaction against the side effect) would determine the potency of a test compound to manifest undesirable pharmacologic effect. In other words, the amount of a drug required to cause a biological harm or injury depends on the magnitude of the body’s biological reaction in which the immune response plays a great pharmacological role by neutralizing and harmonizing xenobiotics with the biological molecules. The dose of a test compound at 100 mg/kg body weight, for instance, could be lethal to some of the study animals while it is still non-lethal to some other study animals depending on the response efficiency of the body. The immune system is well connected to each and every biological systems of the body which allows it to detect undesirable side effects being manifested through immunoglobulins signalling and activation mechanisms. This complex communication network helps to localize the diverse side effects of a test compound being manifested on different organ systems into the immune system which makes a toxicity study relatively simple to monitor. The cellular immune system becomes active following the molecule-receptor interaction and start producing antibodies which is also known as immunoglobulins to protect bodily harm and destruction. Under normal biological circumstances, the amount of immunoglobulins produced by the cellular immune system following exposure to a test compound is proportional to the number of harmful molecules interacted with its receptor subtype. Thus, with the reference to the changes in the immune response against the administered dose, it would be able to deal with the diverse undesirable side effects of a test compound being manifested on treated study animals using computational systemic biology.
Mar 2022 DOI 10.14302/issn.2638-4469.japb-22-4102
Abu O.D.,Corresponding author
Department of Biochemistry, Faculty of Life Sciences, University of Benin, Benin City, Nigeria.
The safety of plant-derived bioactive compounds has become a global concern. The present study investigated the dose response of total saponins isolated from the stem bark of Dialiumguineense. Adultmale Wistar rats (n = 15) weighing 170 – 190 g (mean weight = 180 ± 10 g) were randomly assigned to three groups (5 rats per group). The rats received varied doses of total saponins isolated from the stem bark of the medicinal plant (50 - 150 mg/kg body weight, bwt) orally for a period of 9 days. The concentration of fasting blood glucose (FBG) was used as the therapeutic index.The results of the analysis revealed that total saponins isolated from the stem bark of D. guineense significantly reduced the Fasting Blood Glucose (FBG) levels of normal Wistar rats (p < 0.05). The graded and quantal dose-response curves showed that150 mg/kg bwt was effective in reducing the blood glucose of rats (produced the best hypoglycemic effect). The study concluded that total saponins isolated from the stem bark of D. guineense possesses hypoglycemic effect at a relatively good dose.
Mar 2022 DOI 10.14302/issn.2644-1101.jhp-21-4037
J. Grant Coke Ph.D MoniqueCorresponding author
The connection between the nurse employee’s apparent degree of work environment incivility and their expectation to stop their individual associations has been upheld by research for far over 10 years. Placed contentions have additionally analyzed a distinction in nurses' view of work environment incivility considering the kind of working environment (i.e., regardless of whether a public or private healthcare practice), considering the impression of existing working environment incivility and aim to stop employment, separately. The reason for such survey of writings is not just to decide the degree to which work environment incivility influences a nurses' plan to stop employment, yet more so to make for all viewpoints being additionally featured. Additional exploration on working environment incivility, remains continuous, with its related contributory elements, and the impacts on the examined relationships. New research on working environment incivility has critical ramifications for nurses, patients, healthcare services and associations were generally investigated 14569151718232427282943445868697172. Work environment incivility displays lack of respect, negligence or discourteousness that has formed into a combined issue, proved by irritating unfavorable consequences for human resources, and the adverse consequence on the association 78.
Feb 2022
K Al Miraj ACorresponding author
Research Assistant, Department of Vascular Surgery, Bangabandhu Sheikh Mujib Medical University (BSMMU)Dhaka, Bangladesh.
Introduction Calcium (Ca2+) plays an important role in the pathogenesis of ischemic cell damage. Intracellular Ca2+ accumulation leads to neuronal damage by triggering the cycle of cytotoxic events, however the relationship of serum Ca levels and the pathways involved in ischemic injury is unclear. Aim of Study To investigate the relationship of serum Ca2+ levels with severity of acute ischaemic stroke, serum calcium (Ca2+) levels were measured within the first 48 hours and were compared with the clinical severity of acute ischaemic stroke. Material and Methods A hospital based cross sectional study was performed among 100 patients of acute ischaemic stroke who fulfilled the inclusion criteria. The Study was done from July 2020 to August 2021 in SPRC & Neurology Hospital Dhaka, Bangladesh And BSMMU Hospital Dhaka, Bangladesh. After hospitalization presenting complaints, physical findings of the patients were recorded. Severity of stroke was measured by NIHSS scale. Serum calcium level of every patient was measured. Calcium level was divided into 3 groups by weighted average. Statistical analysis was carried out by a non-parametric Ruska Wallis test. Results Among the 100 patients 59% were male. Among all patients 57% of patients were found to be smokers (98% male, 2% female). Among all patients 63% patients were found hypertensive and 21% of all patients (24% male, 17% female) were diabetic. Mean cholesterol level was 257.98mg/dl with standard deviation 55.49 which is above the reference range suggesting hypercholesterolemia, Triglyceride was borderline and LDL cholesterol was slightly higher and HDL cholesterol was slightly lower. Calcium level was divided into 3 groups and NIHSS score was calculated for every patient in each group. The median NIHSS score for group1 (calcium level ≤8.8 mg/dl) was 9(2-20), for group 2 (calcium level 8.9-9.6 mg/dl) was 6 (1-17) and for group 3 (calcium level ≥9.7mg/dl) was 4 (1-16). Conclusion Commonest risk factor of ischaemic stroke is hypertension. Other risk factors are smoking, diabetes mellitus and hyperlipidemia, cardiac disease. Higher serum calcium level is associated with less severity of ischaemic stroke.
Jan 2022 DOI 10.14302/issn.2377-2549.jndc-21-3936
A. Awin Labib.Corresponding author
Chemistry Department, Faculty of Science, Tripoli University, Libya
Two samples of the defectdouble perovskites with general formula Sr2CaNbO5.5 and Sr2CaTaO5.5 were synthesized and their cap abilities in the removal of neutral red dye investigated. Both samples have faced cubic perovskite-type structure in space group Fm3m. The replacement of Nb5+ by Ta5+ has influenced both crystal size and density of the two oxides but showed no impact on the removal capacities. The crystallite size of Sr2CaNbO5.5 and Sr2CaTaO5.5 was determined to be 93.56 and 43.69 nm respectively. The maximum removal capacities of Neutral red are found to be 190.5 mg/g using both the two oxides. This result is consistent with the cell volumes which displayed similar values. The removal of Neutral Red has a negative relationship with temperature but steadily increases as pH increased.
Jan 2022 DOI 10.14302/issn.2372-6601.jhor-22-4061
B. Danilova AnnaCorresponding author
N.N. Petrov National Medicine Research Center of Oncology, Department of Oncoimmunology, 197758, Leningradskaya str., 68, Pesochny, Saint-Petersburg, Russian Federation
Background Human malignant cell models which reflect the structural and physiological complexity of tumor tissue are of great importance for preclinical research in oncology. Spheroids/tumoroids derived from solid tumors are of great interest as cellular models mimicking the first vascular-free growth phase of a tumor node. The fact of the identity between artificially created tumor multicellular aggregates and the real tumor tissue, however, needs to be specified, described and validated in order to see how closely the spheroids are biologically similar to the malignized tissues in vivo compared to the monolayer cell cultures traditionally used. We present here a comparison study of the characteristics of solid tumor cells of different histogenesis (melanomas, soft tissue sarcomas and bone sarcomas, epithelial tumors) cultured in two dimensions (monolayer culture) and three dimensional space (spheroid), namely: spatial organization, multiplication, metabolic activity. Patients and Methods For the creation of 2 D and 3D cell models the cells isolated from the patient's solid tumor fragments obtained intraoperatively were used. 15 samples of skin melanoma, 20 samples of soft tissue and osteogenic sarcomas (STBS), and 9 samples of epithelial tumors (ET). The tumor cells were all cultivated for at least 10 passages. We used phase contrast, confocal microscopy, and immunohistochemistry to investigate spheroids and monolayer cultures. The supernatants of tumor cells grown in 2D and 3D cultures were studied using ELISA and multiplex analysis for the production of a spectrum of chemokines and cytokines supporting the immunosuppression, invasion and metastasis processes. Results Tumor specimens received were predominantly of metastatic origin (75%). In 100% of cases 2D cultures were received, in 88.6% of cases (39 out of 44) we succeeded in obtaining spheroids. There was no direct correlation between the efficiency of tumoroid formation and the tumor's histogenetic origin and the stage of the cancer process (primary tumor, recurrence, metastasis). The median size of spheroids by 4-5 days of cultivation with a starting concentration of 10000 cells per well was 657.14 μm for melanoma (min 400 - max 1000 μm), 571.42 μm (min 400 - max 700 μm), 507.14 μm (min 300 - max 600 μm) for soft tissue sarcomas, 650.0 μm (min 400 - max 900 μm) for osteogenic sarcomas. Immunochemical analysis of Ki-67, GLUT1, and Ecadherin markers was carried out for tumor tissue samples, single-layer tumor cultures, and tumoroids of every patient. The distribution of the stained groups in the spheroids was distinct from the monolayer cultures and more in accordance with the distribution of such in the tissue tumor, the number of Ki-67+ cells was increasing in the spheroids. We detected no dependence of Ki-67+ and GLUT1+ cell localization grade on spheroid size. We identified E-cadherin in tumor tissue and tumoroids of breast carcinoma and one melanoma culture. Monolayer cultures did not express it. The increase in secretory cell activity of the solid tumor cells from 2D to 3D system was observed when CCL2, CCL3, CXCL1, CXCL16, MIF, IL10, MICA (p<0.01) were investigated. Conclusion The presence of patient-specific cells of solid tumors in a 3D environment causes activation of the proliferative and metabolic processes as compared to monolayer cultures, which makes these models approximate the real world clinical picture. The production of chemokines that can attract to the tumor various types of immune system cells, to include their immature versions, as well as production of cytokines and Immunosuppression factors that, when present in the tumor microenvironment in the high concentrations, contribute to the formation of immune cells having suppressive capacities occurs in the 3D cell system. Three-dimensional model of the initial tumor nodule formation stage thus demonstrates the forming process of tumor cells favorable for them microenvironment. Construction of three-dimensional models - spheroids of tumor cells of differing histogenesis demands individual approach and more thorough investigation.
Dec 2021 DOI 10.14302/issn.2692-1537.ijcv-21-4025
M. Quirit AllenCorresponding author
MD.
Introduction The COVID-19 pandemic continues to affect a large swath of the global population. The Philippine records four hundred seventy-four thousand sixty-four (474, 064) confirmed COVID 19 cases since December 31 2020. The COVID 19 pandemic recently highlighted the role of systemic hyperferritenemia as a major cause of death. In this study, we were able to correlate the serum ferritin level and predict 30 day in hospital mortality in COVID 19 pneumonia. Objective The aim of the study is to investigate the correlation between serum ferritin level and disease mortality in COVID19 pneumonia with subset analysis on demographics and co-morbidities of patients with COVID 19 pneumonia. Methodology We reviewed the records of all laboratory confirmed COVID 19 patients from World Citi Medical Center from April 2020 up to April 2021.A statistically significant sample size of seventy nine (79) admitted patients were used in this study. A serum ferritin level was assayed using electrochemilumenescence immunoassay with a Roche COBAS analyzer. Results Result showed that high ferritin level is associated with in hospital mortality. With ferritin level of 1437.07ng/ml, poor clinical outcome and in hospital mortality was considered. We also observed that demographics and co morbidities of patients in this study were significant to predict in hospital mortality. Further sub-analysis of co morbidities such as Hypertensive cardiovascular disease, Type 2 Diabetes Mellitus, Chronic kidney disease, Liver disease, Chronic obstructive pulmonary disease and Cerebrovascular disease showed poor outcome which were directly related to ferritin levels with p value of <0.0001. Conclusion This study has demonstrated that elevated ferritin levels were shown to correlate with 30 day in hospital mortality as well as medical comorbidities such as Hypertensive Cardiovascular disease, Type 2 Diabetes Mellitus, and chronic kidney disease have shown significant evidence for in hospital mortality.
Oct 2021 DOI 10.14302/issn.2641-7669.ject-21-3970
Dias Toledo Arruda-Neto JoaoCorresponding author
Linear Accelerator Laboratory, Physics Institute, University of Sao Paulo, São Paulo-SP, Brazil
Microcystins (MCs) are toxins profusely synthesized by cyanobacteria, causing livestock poisonings and endangering human health. We design and execute an experiment to investigate the attenuation (degradation) of microcystins by exposing them to gamma radiation and electron beams at doses of 0 (control), 3, 5, 10 and 15 kGy. The experimental conditions simulate microcystin contamination of aquatic environments; we thus consider (1) microcystins inside whole cells and extracellular dissolved in water, simulated by non-sonicated and sonicated cells, respectively, and (2) two acute microcystin concentrations within water. Toxicity tests of Microcystis aeruginosa detected immobilization (i.e., paralysis) of Ceriodaphniasilvestrii exposed to aqueous crude extracts of irradiated and non-irradiated M. aeruginosa (NPLJ-4 strain) at concentrations of 45 and 90 mg.L-1 (mg dry weight of freeze-dried material), and the results were analyzed using the Trimmed Spearman-Karber statistical program to obtain 48-h EC50, the average effective concentration causing immobility in 50% of organisms after 48 hours. We conclude that electron beams are effective physical agents for toxin attenuation (degradation) and reach 100% effectiveness at 5 kGy and above; their efficiency is two orders of magnitude greater than that of gamma radiation. This new body of information contributes to (1) remediating environmental water sources; (2) designing water/wastewater treatment facilities; (3) combatting chronic microcystin environmental contamination; and (4) inspiring further studies to promote the use of biomonitors (e.g., Cladocerans) to detect and evaluate microalgae contamination.
Oct 2021 DOI 10.14302/issn.2471-2140.jaa-21-3960
Singh SushilaCorresponding author
Department of Chemistry, CCS Haryana Agricultural University, Hisar, Haryana, India.
When lipids are exposed to heat, light and oxygen, it leads to oxidation. The addition of antioxidants is required to preserve colour, flavour and vitamin destruction. Present study was, therefore, planned to investigate pod coat of pigeon pea as possible sources of natural antioxidants and to assess their efficacy in stabilization of crude soybean oil during normal storage (28 days at 50°C). Study revealed that acetone pod coat extract of pigeon pea showed richness in total phenolics (17.72 mg/g), flavonoids (9.00 mg/g) and tannins (2.21 mg/g) while the extract of ethyl acetate was found enriched in tocopherols content (9.56 mg/g). The IC50 value of acetone extract was found to be lowest, exhibited potent antioxidant activity in the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric thiocyanate (FTC) methods. After adding synthetic and natural antioxidants in oil, Peroxide, p-Anisidine, Thiobarbituric acid value, Conjugated dienes, trienes and free fatty acids content were measured every 4 days. Acetone pod coat extract (2000ppm) of pigeon pea gave strong antioxidant efficacy in stabilization of crude soybean oil and hence could be recommended as natural antioxidants for food applications.The research explored the possibility of using pod coat of pigeon pea as imminent sources of green antioxidants and to evaluate their efficacy in stabilization of crude soybean oil.
Jul 2021 DOI 10.14302/issn.2577-2279.ijha-21-3869
Jain JuliCorresponding author
Neuroscience Research Lab, Department of Zoology, School of Biological Sciences, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar – 470003 (MP), India.
Rotenone is well known environmental neurotoxin used to induce Parkinson’s disease (PD) model. Numerous studies are investigated its toxicity on the brain but few studies are available that examined its toxicity on the liver and kidney. Therefore, the main aim of the present work was to explore the toxicity of rotenone on the liver and kidney and its protection through quercetin. Administration of rotenone orally at the dose of (5mg/kg b.w daily for 60 days) caused a significant increase in the levels of liver function and renal function biomarkers as compared to controls. A significant increase in the level of lipid peroxidation, nitric oxide, and decrease in the levels of reduced glutathione, reduction in the activities of catalase and superoxide dismutase were observed in the liver and kidney as compared to control. The histopathological and SEM study in rotenone-treated mice showed alteration and signs of inflammation in the liver and kidney. While co-treatment of quercetin orally (30 mg/kg b.w for 60 days) together with rotenone, reversed the above parameters. In conclusion, rotenone significantly damages the liver and kidney, and the administration of quercetin along with rotenone shown a protective role. This study provides a new insight into where rotenone-induced liver and kidney dysfunction could be successfully protected by quercetin.
Jun 2021
Akonu Adom Mensah Forson KwesiCorresponding author
University of Cape Coast, Ghana
The purpose of this study was to investigate the effects of extracts of Tridax procumbens leaves a traditional medicinal plant, on α-amylase activities in vitro. The air-dried aerial parts of Tridax procumbens leaves were extracted with Petroleum ether and Ethanol. The results of both enzyme inhibition activities were found in a dose-dependent manner. The strongest activity of α-amylase inhibition was found in Petroleum ether extract (IC50 = 10.436 mg/mL) followed by ethanol extract (IC50 = 12.65 mg/mL) compared with acarbose having an IC50 value of 0.044 mg/mL. All extracts from this plant possess potent α-amylase activity inhibition which may offer a better therapeutic strategy to minimize postprandial hyperglycemia and its complications.
Jun 2021 DOI 10.14302/issn.2639-3166.jar-21-3857
Mohamed Adam AbubakerHarounCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri-Sudan.
The Fall armyworm worm (FAW) (Spodopterafrugiperda) is one of the important economic pests which goes on several field crops and causes serious damage. The aim of this study was to look for efficient, less cost and environmentally friend plant extract for controlling Fall armyworm worm in cereal crops. A Complete Randomized Block Design (CRBD) experiments with three replications were conducted in the laboratory to investigate the insecticidal effects of four plant extracts consisting of ethanolic extract of Neem (Azadirachta indica) seeds, Black pepper (Piper nigrum) seeds, Usher (Calotropis procera ) leaves and water extracts of Argel (Solenostemma argel) leaves on larvae of the Fall armyworm (FAW) (Spodoptera frugiperda). Newly emerged larvae of FAW were treated topically by 4 concentrations (10, 25, 50 and 75%) of each extract, and then the larval mortalities were calculated after 24, 48 and72 hrs. The results showed the highest concentrations (75%) of the three ethanolic extracts gave higher mortality percentages (100%) after 72 hrs of exposure, compared with other concentrations. Also, these were not significantly different from the recommended dose of the standard pesticide “Spinosad”. On the other hand, Argel water extract showed no effect on the (FAW) larvae. It is recommended that this experiment to be replicated under different environments.
Jun 2021 DOI 10.14302/issn.2379-7835.ijn-21-3874
J. Johnson JeremyCorresponding author
University of Illinois at Chicago, College of Pharmacy, Department of Pharmacy Practice
Natural food preservatives in the form of herb extracts and spices are increasing in popularity due to their potential to replace synthetic compounds traditionally used as food preservatives. Rosemary (Salvia rosmarinus) is an herb that has been traditionally used as an anti-inflammatory and analgesic agent, and currently is being studied for anti-cancer and hepatoprotective properties. Rosemary also has been reported to be an effective food preservative due to its high anti-oxidant and anti-microbial activities. These properties allow rosemary prevent microbial growth while decreasing food spoilage through oxidation. Rosemary contains several classes of compounds, including diterpenes, polyphenols, and flavonoids, which can differ between extracts depending on the extraction method. In particular, the diterpenes carnosol and carnosic acid are two of the most abundant phytochemicals found in rosemary, and these compounds contribute up to 90% of the anti-oxidant potential of the herb. Additionally, several in vivo studies have shown that rosemary administration has a positive impact on gastrointestinal (GI) health through decreased oxidative stress and inflammation in the GI tract. The objective of this review is to highlight the food preservative potential of rosemary and detail several studies that investigate rosemary to improve in vivo GI health.
Jun 2021 DOI 10.14302/issn.2474-7785.jarh-21-3867
Marks RayCorresponding author
Department of Health and Behavior Studies, Teachers College, Columbia University, New York, NY 10027, USA.
Background Aging is said to represent a declining state that is possibly especially compromised by sleep issues, and declining melatonin levels. Aim This review examined the idea that aging can be favorably influenced in numerous ways by the addition or maintenance of adequate melatonin levels. Specifically, the impact of melatonin on skeletal muscle was the key topic of interest. Method Reviewed were peer reviewed research and review articles specifically pertaining to healthy aging, melatonin, and muscle associated observations. Results Declining melatonin levels greatly impact multiple essential body systems and tissues. Supplements or interventions that heighten melatonin presence appear to have beneficial impacts on aging in general, and muscle function and structure, in particular. Conclusion The use of melatonin early on in the aging process is likely to produce more favorable long-term outcomes than not in cases of deficiency, and should be further investigated.
Jun 2021 DOI 10.14302/issn.2639-3166.jar-21-3816
Elamin Elhaj WaleedCorresponding author
Department of Plant Protection, College of Agricultural Studies, Sudan University of Science and Technology, Khartoum State, Sudan.
African bollwormis a worldwide-spread species that shows a high degree of polyphagia and it is considered as one of the main agricultural pests in the world. Laboratory experiments were conducted in the Research Laboratory, College of Agricultural Studies, Sudan University of Science and Technology to evaluate the lethal effect of C. rotundusand D. stramonium on the H. armigeraand to investigate the synergistic effect of sesame oil and tested extracts by dipping methods. Five concentrations (4%, 6%, 8%, 10% and 12%) were used for each plant extract in a Completely Randomized Design. Tubers ethanolic extract of C. rotundus at 12% concentration caused 90% mortality after 72 hrs of application, whereas 12% concentration of seeds ethanolic extract of D. stramonium generate only 70% mortality after 72 hrs of exposure. When sesame oil was added to each concentration of ethanolic extract of C. rotundus and D. stramonium it exhibited a synergistic effect. In fact, the 10% concentration scored 53.3% and 76.7% mortality, however, when mixed with sesame oil the mortality increased significantly to 83.3% and 100% for D. stramonium and C. rotundus respectively after 72 hrs of exposure. This study clearly demonstrates that both tested plants have a lethal effect on the larvae of the African bollworm. However, tubers ethanolic extract of C. rotundus seems to be significantly more toxic than the seeds ethanolic extract of D. stramonium. This study also revealed that sesame oil has a synergistic effect when added to these plant extracts.
Jun 2021 DOI 10.14302/issn.2639-3166.jar-21-3817
Elamin Elhaj WaleedCorresponding author
Department of Plant Protection, College of Agricultural Studies, Sudan University of Science and Technology, Khartoum State, Sudan.
Helicoverpaarmigera is one of the most destructive pests of field crops worldwide. The Study was designed to investigate through laboratory screening the insecticidal activity of Ricinus communis, Cassia occidentalis and Bacillus thuringiensis var. Kurstaki (Btk) and their combinations against 2nd larval instar of H. armigera. Five concentrations (4%, 6%, 8%, 10% and 12%) of each plant extract and (0.62, 1.25, 2.5, 5, and 10 mg/ml) of Bt were used in this experiment. Mortality (%) was recorded after 24,48,72 and 96 hrs post treatment. The results showed that R. communis, C. occidentalis and Btkhave insecticidal activity against 2nd instar larvae of H. armigera. The highest concentration (12%) caused 80% and 70% larval mortality after 96 hrs for R. communis and C. occidental respectively. The statistical analysis revealed that there is a significant differences between all treatments and control. Additionally, all combinations (plant/plant or plant/Bt) increased the mortality %. The results also clearly demonstrate that the R. communis are significantly more toxic than C. occidental where the LC50 values were 6.4 % for R. communis and 8.1% for C. occidental. On the other hand LC50 value for Bt was 0.41 mg/ml. The binary mixture of R. communis and C. occidental have a potentiation effect after 48 hrs. Regarding the mixture of Bt and plant extracts the results revealed that R. communis and Bt mixture induced a potentiation effect whereas C. occidental and Bt mixture induced a an additive effects.
Apr 2021
Asadzandi MinooCorresponding author
PhD. Assistant Professor, Research fellow. Medicine, Quran and Hadith Research Center, Head of the spiritual health workgroup of Baqiyatallah University, Baqiyatallah University of Medical Sciences. Member of the Department of Spiritual Health of the
Background COVID-19 as an infectious disease, and deadly biological crisis, threatens the bio-psycho-social- spiritual health of the people. Spiritual health from the perspective of Islam, means having a sound heart, living in the present time with sense of peace, security, patience and gratitude, safe from the fear and anxiety of future, grief and regret for the past events. It affects other dimension of health. This study was conducted to investigate the spiritual health services in the face of the COVID-19 pandemic in a Muslim society. Methods This qualitative study was conducted from March 1, 2020 to the end of May 2020 in Tehran by using the Schwartz and Kim's hybrid model concept analysis with a deductive / inductive analysis approach, in three stages: 1- Theoretical review of religious and scientific evidence, 2- Field research 3- Final analysis. Data collection was done in hospitals and hospices by semi-structured interviews, taking notes, websites and social networks search. Data were analyzed by "Contractual Content Analysis Method". Results Despite the fact that spiritual health services (spiritual care and counseling) are not taught in Iranian universities, but in this biological crisis, spiritual health services, based on religious beliefs of health system employees were implemented. The Muslims’ belief in divine test, healing power of God, helping the people as highest worship, aroused spiritual awakening and enthusiasm in the health care team. Spiritual health services at prevention levels were provided with the aim of helping the patient, family and clients, in an inter-professional model based on the jurisprudential rules derived from the religious evidences (Verses and Hadiths), in line with holistic approach, community-based care, spiritual self-care, home-care, family participation. The involvement of non-specialists in the provision of medical services was prevented. According to, preserving the human dignity in Islam, Islamic rituals were performed by the treatment team and volunteer clerics for dying and dead people. Conclusion Considering the impact of religious spirituality on Muslims’ lifestyle and health behaviors, it seems that the use of Islamic health guidelines can improve the quality of health care services and help improve the spiritual health of people in biological crises.
Apr 2021 DOI 10.14302/issn.2576-6694.jbbs-21-3773
Jana SnehasisCorresponding author
Trivedi Science Research Laboratory Pvt. Ltd., Thane (W), Maharashtra, India.
L-tryptophan is an essential α-amino acid, necessary for the normal growth in newborns, nitrogen balance in adults, protein synthesis, precursor of serotonin, melatonin, niacin, and albeit inefficiently in human, also the precursor of indole alkaloids and auxins in plants. This current study was designed to investigate the impact of the Trivedi Effect®-Biofield Energy Healing Treatment (Blessing) on the structural properties and the isotopic abundance ratio of L-tryptophan using LC-MS analytical technique. L-tryptophan sample was divided into two parts, one part of L-tryptophan was considered as the control sample (no Biofield Energy Treatment was provided), while the second part was treated with the Trivedi Effect®-Consciousness Energy Healing Treatment/Blessing remotely by a renowned Biofield Energy Healer, Dahryn Trivedi and termed as the treated sample. The mass spectra of both the control and treated samples with respect to the chromatographic peak at retention time (Rt) 2.1 minutes exhibited the mass of the molecular ion peak adduct with hydrogen ion at m/z 205.08 (calcd for C11H13N2O2+, 205.1), along with low molecular fragmented mass peaks at m/z 188, 159, and 102 for C11H12N2O2+, C10H11N2+, and C8H6+, respectively were also observed. The isotopic abundance ratio of PM+1/PM (2H/1H or 13C/12C or 15N/14Nor17O/16O) in the treated L-tryptophan was significantly increased by 35.93% compared with the control sample. Hence,the 13C, 2H, 15N, and 17O contributions from C11H13N2O2+ to m/z 206.08 in the treated L-tryptophan was significantly increased compared to the control sample. It could be hypothesized that the changes in the isotopic abundance and mass peak intensities due to the modification in nuclei possibly through the interference of neutrino particles using the Trivedi Effect®-Consciousness Energy Healing Treatment. The Biofield Energy Treated/Blessed L-tryptophan with increased stable isotopic abundance ratio might have changed the physicochemical properties with higher force constant in the molecule. The new form of treated L-tryptophan would be a better and more stable in the supplements, nutraceutical, and pharmaceutical formulations, which would be advantageous for the prevention and treatment of pellagra, depression, kynurenine. It could also maintain the normal label of tryptophan and avoid increase of its metabolite, lower the neurotoxin and a metabotoxin behavior, glutaric aciduria type I (glutaric acidemia type I) disorder, eosinophilia-myalgia syndrome (EMS), incurable and sometimes fatal flu-like neurological condition, etc. As tryptophan is the precursor for the plant hormones like indole alkaloids and auxins, hence, this treated L-tryptophan would be advantageous for the improvement of yield, productivity, and quality of crops and other plants.
Feb 2021 DOI 10.14302/issn.2379-7835.ijn-21-3709
Howells KristyCorresponding author
Canterbury Christ Church University, UK.
Background Children need to drink enough water (1.1-1.3 litres) throughout the day to stay hydrated and for health benefits1. Wellbeing and cognitive function benefits have been identified for children who are hydrated2. Yet there is a dearth of research focusing specifically on children’s perceptions of their own fluid intake levels and who helps support them in ensuring they are drinking enough water, this is a novel area to investigate. Previous research3 identified that 44.2% of young children’s fluid intake were influenced the strongest by a family member. This paper will explore in further detail the influence of siblings on children’s fluid intake, in particular older versus younger siblings. Methods 130 children (67 girls and 63 boys, of which 45 had a younger sibling (s) and 85 having an elder sibling(s), from 4 primary schools in the South East of England, were questioned between January and April 2019 using an adapted version of Coppinger and Howells’ (2019)4 questionnaire, on their understanding of fluid intake, how much they perceived they drank and who supported them in prompting them to drink. Physical visual representations were used to aid question comprehension and to ensure the questions were appropriate for young children. The data was analysed using SPSS 24.0 using MANOVAs (P < 0.05) to consider statistical variance in gender and older sibling status. Results The most significant results were linked to elder siblings influence younger siblings in drinking too little fluids within a school day (F=0.530, p<0.05), whilst those without an elder sibling, thought they drank beyond the daily recommended guidelines and reported they drank over 2 litres. This illustrates that children misunderstand fluid intake recommendations regardless of whether they have an elder sibling or not. Children named adults, both parents and teachers as well as elder siblings as the key influencers of them drinking (F=3.67, p<0.05) and the data indicated that girls were more influenced by siblings than boys, whilst twins were not influenced by each other. Conclusion It is concluded that siblings do have an influence on the consumption of water, as siblings act as role models and other siblings follow their habits, therefore the whole family unit is important to ensure that the right fluid intake is consumed. It is recommended that further education, curriculum and community development is needed to continue to support young children’s knowledge and understanding of fluid intake.
Feb 2021 DOI 10.14302/issn.2328-0182.japst-21-3715
Jana SynthesisCorresponding author
Trivedi Science Research Laboratory Pvt. Ltd., Thane (W), Maharashtra, India
Zinc is an essential trace mineral that plays an important role in the human body as a regulator for different enzymatic systems. It is used in various supplements in the form of zinc chloride to meet the daily requirements. This study was designed with the aim to investigate the impact of The Trivedi Effect®- Energy of Consciousness Healing Treatment on the various physical, thermal, and spectral properties of zinc chloride. The study involves dividing the zinc chloride sample in two parts, followed by keeping the first part untreated and named it the control sample. Besides, The Trivedi Effect®- Biofield Energy Healing Treatment was provided to the other part remotely by the renowned Biofield Energy Healer, Mr. Mahendra Kumar Trivedi and the sample was termed as Biofield Energy Treated sample. Later on, both the samples were analyzed using PXRD, PSA, DSC, UV-Vis, and FT-IR analytical techniques. The PXRD analysis revealed the significant changes in the crystallite sizes (from -66.68% to 25.02%) and the relative peak intensities (from -81.35% to 141.22%) along with 26.46% decrease in the average crystallite size of the Biofield Energy Treated sample, compared with the control sample. Additionally, the treated sample showed reduction in the particle sizes d10, d50, d90, and D(4,3) values by 92.18%, 23.24%, 14.48%, and 29.31%, respectively as compared to the control sample. However, the surface area of the treated sample was observed to be significantly increased by 224.57%, compared to the control sample. The DSC analysis revealed slight increase in the melting and decomposition temperature of the Biofield Energy Treated sample by 0.84% and 3.62%, respectively; along with the significant increase in the latent heat of melting and decomposition by 24.85% and 123.23%, respectively, compared to the control sample. It showed that the thermal stability of the treated sample was significantly increased. However, the UV-Vis and FT-IR studies revealed that the structural properties of the control and treated samples were remained same. The overall study represents that The Trivedi Effect®- Energy of Consciousness Healing Treatment may be used to generate a polymorphic form of zinc chloride, which might possess enhanced solubility, dissolution and bioavailability profile along with improved thermal stability, compared to the control sample. Such properties of the treated zinc chloride may ensure its efficacy, stability and safety during the process of shipment, handling, and storage; thus, The Trivedi Effect®-Energy of Consciousness Healing Treated zinc chloride would be useful for designing the better formulation with enhanced bioavailability, stability and efficacy profile.
Jan 2021 DOI 10.14302/issn.2692-1537.ijcv-20-3685
Elkhenany HodaCorresponding author
Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt.
The current uncontrollable outbreak of novel coronavirus (COVID-19) has unleashed severe global consequences in all aspects of life and society, bringing the whole world to a complete halt and has modeled significant threats to the global economy. The COVID-19 infection manifests with flu-like symptoms such as cough, cold, and fever resulting in acute respiratory distress syndrome (ARDS), lung dysfunction, and other systemic complications in critical patients are creating panic across the globe. However, the licensed vaccine has started to show up; some resulted in side effects that would limit its possibility in some circumstances as allergic personnel, for example. Moreover, the production and approval of new drugs is a very complicated process and takes a long time. On the other hand, stem cells have gone the extra mile and intensively investigated at preclinical and clinical studies in various degenerative diseases, including infectious ones. Stem cells are proposed as a broad-spectrum therapeutic agent, which may suppress the exaggerated immune response and promote endogenous repair by enhancing COVID-19 infected lung microenvironment. Also, stem cells have different application manners, either direct transplantation, exosome transplantation, or drug delivery of specific cytokines or nanoparticles with antiviral property by engineering stem cells. This review discusses and summarizes the possible emerging role of cell-based therapy, especially stem cell therapy, as an alternative promising therapeutic option for the treatment and control of novel COVID-19 and its potential role in tissue rejuvenation after COVID-19 infection.
Dec 2020 DOI 10.14302/issn.2639-3166.jar-20-3642
H. M. Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri, Khartoum North, Sudan
Today; there is an increasing demand for fertilizers due to the intensive and extensive agricultural activity to meet the ever increasing demand for food and fiber by the rapid world population expansion. This study is mainly concern with the Bat Guano which is usually collected from the Caves. This experiment was conducted at the Farm of the College of Agriculture, University of Bahri, Alkadaro, Khartoum North-Sudan during the period from July to November, 2017 with the objective to investigate the efficacy of Bat Guano and Nitrogen fertilizer on growth and yield of Serena and Opera (Helianthusannus, L.) Hybrid Sunflower cultivars. The study was based on split-plot experiment in randomized complete block design (RCBD) with four (4) replications. Data pertaining Plant Height (cm), Leaf Number (LN), Leaf Area (LA), Leaf Area Index (LAI) and Seed Weight (SW) were studied. The said data were analyzed using Statistic 8- software. The results reflected significant increase in plant height (F= 6.05, P < 0.0001, leaf number (F=2.37, P<0.0388), leaf area (F= 7.44, P<0.001), leaf area index (F= 6.53, P < 0.0001) and seed weight of both Sunflower cultivars respectively due to application of Guano and Nitrogen fertilizer compared to the control. It also reflected non-significant difference between all studied traits as application of either Guano or Nitrogen fertilizer. Moreover, all studied characters of the two cultivars have similarly responded to the application of the two types of fertilizers. Further studies are recommended to assess the benefits from the use of Bat Guano as a fertilizer.
Dec 2020 DOI 10.14302/issn.2997-1969.ijhs-20-3658
Assan JallowCorresponding author
PhD student at the rome school of Economics Italy
In this project the main aim is to investigate the role of health on economic development. In doing so my inspiration was derive for the augmented neoclassical theoretical firm work base on the hypothesis that health has a positive impact on economic growth, looking at specification 1 and 4 are basic linear regression model which are used to capture the liner relationship between health and economic development. And looking at the graphs from our “appendix” we will observe a strong positive correlation between the variables. We also used life expectancy as a proxy for health which was positive and significant across all specification, which affirms that’s health have a positive and significant impact on economic growth as well as output per capita. For specification 3 and 6, we ran a “flexmix” which gives a reflection of a conclusion that our data most not be “cluster”, this is also supported by the pair wise plot which actually shows no meaningful cluster at a visual inspection.
Nov 2020 DOI 10.14302/issn.2766-8630.jrnm-20-3288
Maraei AsmaCorresponding author
Department of Medical Engineering, School of Technical and Engineering, Dezful Branch, Islamic Azad University, Dezful, Iran
Introduction Given the high radiation tissue sensitivity of pediatric patients, it is necessary to monitor their received dose in order to optimize radiation protection. The first aim of this study was to evaluate of the entrance surface dose (ESD) in pediatric patients undergoing chest x-ray at the main hospital of Dezful, Iran. The second aim was to compare our results with the established dose reference levels (DRL). Materials and Methods The studied population included 204 pediatric patients less than 15 year who were referred to chest x-ray. A calibrated dose area product meter (DAP-meter) with permanent installation on x-ray unit was used to radiation dose measurements. For each patient, the demographic data, exposure parameters and the dose read by DAP-meter were recorded and ESD was calculated using standard mathematical formula. Results The average value of ESD was 119 μGy in patients less than 15 years. This value was 51.3, 122.3, 131.5 and 171.2 μGy for the age groups less than 1 year, 1 to 5 year, 5 to 10 year and 10 to 15 year, respectively. A statistical significant difference was seen between ESD values in different age groups (P<0.001), whereas no statistical difference was seen between ESD values in girls and boys (P =0.993). Conclusion Pediatric patients in hospital investigated (except age group less than 1 year) are subjected to unnecessary radiation exposure, especially due to use of non-optimize x-ray protocols.
Nov 2020 DOI 10.14302/issn.2328-0182.japst-20-3618
Jana SnehasisCorresponding author
Trivedi Science Research Laboratory Pvt. Ltd., Thane (W), Maharashtra, India.
Metronidazole is an antibiotic and useful for the antibacterial and antiprotozoal medication. This study was performed to investigate the impact of the Trivedi Effect®-Biofield Energy Healing Treatment on the structural properties and the isotopic abundance ratio of metronidazole using LC-MS and GC-MS spectroscopy. Metronidazole sample was divided into two parts, one part of metronidazole was considered as control (no Biofield Energy Treatment was provided), while the second part was treated with the Trivedi Effect®-Consciousness Energy Healing Treatment remotely by a renowned Biofield Energy Healer, Alice Branton and termed as a treated sample. The LC-MS spectra of both the samples of metronidazole at the retention time (Rt) 2.61 minutes exhibited the mass of the protonated molecular ion peak at m/z 172 M+H+ (calculated for C6H10N3O3+, 172.07). The LC-MS based isotopic abundance ratio of PM+1/PM (2H/1H or 13C/12C or 15N/214N or 17O/16O) in the treated metronidazole was significantly increased by 8.24% compared with the control sample. Thus,13C, 2H, 15N,and17O contributions from (C6H10N3O3)+ to m/z 173 in the treated sample were significantly increased compared with the control sample. The GC-MS based isotopic abundance ratio of PM+1/PM in the treated metronidazole was significantly increased by 5.92% compared with the control sample. Hence,13C, 2H, 15N, and217O contributions from (C6H9N3O3)+ to m/z 172 in the Biofield Energy Treated sample were significantly increased compared with the control sample. However, the isotopic abundance ratio of PM+2/PM in the treated metronidazole was significantly decreased by 18.2% compared with the control sample. Hence,18O contributions from (C6H9N3O3)+ to m/z 173 in the treated sample were significantly decreased compared with the control sample. The isotopic abundance ratio of PM+1/PM (2H/1H or 13C/12C or 15N/14N or 17O/16O) and PM+2/PM (18O/16O) in the treated metronidazole was significantly altered compared to the control sample. From the results, it can be hypothesized that the changes in isotopic abundance and mass peak intensities could be due to changes in nuclei possibly through the interference of neutrino particles via the Trivedi Effect® - Consciousness Energy Healing Treatment. The new form of treated metronidazole would be better designing novel pharmaceutical formulations that might offer better therapeutic response against bacterial and protozoal infection in the vagina (bacterial vaginosis), stomach (giardiasis, trichomoniasis, pseudomembranous colitis), joints (pelvic inflammatory disease), liver, skin, brain, and respiratory tract, aspiration pneumonia, rosacea, intra-abdominal infections, lung abscess, fungating wounds, periodontitis, amoebiasis, oral infections, etc.
Nov 2020 DOI 10.14302/issn.2379-7835.ijn-20-3606
Rahman Bhuiyan FarjanaCorresponding author
Bangladesh Institute of Research and Training on Applied Nutrition (BIRTAN), Dhaka, Bangladesh
Background Nutritional status of adolescent girls is very crucial for their health and has a great impact on the quality of the next generation. The present study aimed to investigate the nutritional status and nutrition-related knowledge among urban adolescent girls in Bangladesh. Methods A cross-sectional study involving a total 500 of adolescent girls (aged 10-19) from four schools and colleges in Dhaka city. Socio-demographic, anthropometric and nutrition-related information was collected by semi-structured questionnaires. In addition, 24 hours food recall and food frequency questionnaire was used to assess the dietary intake. Results The ages of the early adolescent and late adolescent girls yrs (Mean ± SD) were 12±1 and 17±1 respectively. The mean (±SD) BMI of the early adolescent and late adolescent was 21.12±0.32 and 22.10±3.89 correspondingly. Among the early adolescent girls, the nutritional knowledge score was about 62% (moderate), 87% had a positive attitude and 72% had good practices in their daily lives. Whereas among the late adolescent girls, the nutritional knowledge score was about 57% (moderate), 90% showed a positive attitude and 61% had good practices. Among the subject, the average calorie intake was 1491 kcal, which was 24% lower than RDA. The Carbohydrate intake was lower than the RDA but the protein and fat intake was higher than the RDA. Conclusions The dietary intake of adolescent girls was found inadequate. Nutrition education and strong motivation can create positive changes in dietary intake. To understand the real phenomena of dietary intake of adolescent girls, further study is necessary to conduct with a large sample size.
Nov 2020 DOI 10.14302/issn.2766-869X.jfd-20-3603
Jangid RenuCorresponding author
Department of Botany, Samrat Prithviraj Chauhan Government College Ajmer, Rajasthan, India
Plant products have been used as medicines against fungal infectious diseases. In this research antimycotic activity of the leaf extracts of five medicinal plants (Nerium indicum, Catheranthus roseus, Lantana camera, Ziziphus mauritiana) were tested against three dermatophytes (Trichophyton mentagrophytes, Trichophyton rubrum and Microsporum. gypseum). Development of more effective and less toxic antimycotic agents is required for the treatment of dermatophytosis. The plant materials were extracted with methanol, ethanol and diethyl ether solvent to investigate their antimycotic activities in Vitro. Ethanol and methanol extracts of all selected medicinal plants were showed the positive activity against all tested dermatophytes. Diethyl ether extract was showed lowest activity against T. mentagrophytes and T. rubrum and showed moderate activity against M. gypseum. The three dermatophytes differed with regard to their susceptibility to plant extracts.
Oct 2020 DOI 10.14302/issn.2377-2549.jndc-20-3486
A. Awin Labib.Corresponding author
Department of Chemistry, Faculty of Science, University of Tripoli, Libya
Three members of the A- site doped Nb perovskites with general formula Sr3NbO5.5, BaSr2NbO5.5 and Ba2SrNbO5.5 were synthesised by solid-state methods and their removal efficiency of Methyl violet from aqueous solutions investigated. The X-ray diffraction measurements demonstrated that the three samples have a faced cubic perovskite-type structure in space group Fm m. The addition of Ba2+ into the A-site of Sr3NbO5.5 has influenced the cell volume, crystal size and density. Subsequently, the removal capacity was also impacted. The crystallite size of the oxides was determined to be less than 82 nm. The maximum removal capacities of Methyl violet are found to be 46.5, 13.1 and 8.0 mg/g using Ba2SrNbO5.5, BaSr2NbO5.5 and Sr3NbO5.5 respectively. The amounts of the dye adsorbed by the oxides have increased as the Ba2+ content increased. The removals of Methyl violet have positive relationship with pH, temperature and the mass of the oxides.
Sep 2020 DOI 10.14302/issn.2694-2275.jzr-20-3537
O AzuonwuCorresponding author
Department of Medical Laboratory Science, Medical Bacteriology/Virology/Parasitology Unit, Rivers State University, Nkpolu-Oroworukwo, Port Harcourt, Nigeria.
This study investigated the potential pathogenic bacteria that are associated with domestic dog stool in Port Harcourt Metropolis. Convenience sampling techniques were used for sample collection outcome. A total of fifty dog stool samples were collected aseptically into a sterile stool container from different locations (Agip Estate, Rumuokoro Community, Government Residential Area, Sand-fill Borokiri, Port Harcourt Township, and Rivers State University lecturers’ quarters) all within Port Harcourt City. Bacteriological analysis was determined using standard microbiological analytical and identification techniques. Statistical analysis was performed using Statistical Package for Social Science version 21 for frequency, percentage, prevalence rate and correlation at 0.01 and 0.05 level of significance. Potential pathogens with associated percentages that were isolated are E coli (20.0%), Klebsiella species (16.0%), Pseudomonas species (4.0%), Proteus species (28.0%), Bacillus species (4.0%), Staphylococcus aureus (14.0%), and unidentified [other Staphylococcus species] (4.0%). However, the research further revealed that Proteus species (28.0%), was the most prevalent pathogen, while Bacillus species (4.0%), Pseudomonas species (4.0%), and Streptococcus species (4.0%), were the least prevalent among pet dogs studied. The correlation analysis showed no significant relationship between isolates with socio-demographic data of pet owner and Pet biodata respectively. From the analysis, correlation coefficient values of .269 and .124 were obtained for Age of Pet Owner and Gender of Owner respectively. It also show a direct correlation but by implication, a very weak, non-significant (p<0.05) relationship existed between the organisms isolated and the variables (Age of Pet Owner and Gender of Pet Owner). However, no relationship exists between isolates and visit to vet Doctor (r-0.038; p>0.05). Furthermore, negative non-significant correlation (p>0.05) was observed for marital status of Pet Owner (r=-.158) and Age of Pet (r=-.023) and isolate. Also, correlation association between isolates and some risk factors using the correlation analysis matrix revealed an indication of an indirect but moderate association between isolates and Caressing (r=-.347, p=0.01). However, other risk factors like vaccination (r=.042), Feeding Pattern(r=.125), Pet Bathing (r=.220) and Eating with pet in same plate (r=.146), did not prove statistical significance at p>0.05. The results from the study strongly suggest that pet dogs carry potential pathogenic organisms in their faecal matter that can serve as a source of infection to the pet owners. It is, therefore, very critical that these pets should be treated and possibly vaccinated frequently, even as their faecal matters should be well disposed to prevent possible zoonotic infectious epidemic outbreak in our global communities.
Sep 2020 DOI 10.14302/issn.2835-513X.ijl-20-3454
Gupta AnjuCorresponding author
Department of Mechanical, Industrial and Manufacturing Engineering, University of Toledo, Toledo, OH 43614, USA
We investigated physical steric and thermal stability effects induced by cholesterol and polyethylene glycol (PEG) in liposomes encapsulated with riboflavin. The composition of liposome was varied systematically to decipher the individual and combined effects of cholesterol and PEG on the stabilization of liposomes, specially the photopolymerizable liposomes for their potential applications in photo-treatments. Our results indicate that inclusion of PEG in the lipids enhances the steric stabilization by adopting a brush-like regime that prevents the agglomeration of encapsulated liposomes. A mechanistic differential scanning calorimetry studies reveal the phase transitions and enthalpy changes in the lipid bilayer due to the presence of cholesterol suggesting its role in regulating membrane fluidity. Supporting in- vitro studies confirm the efficacy of PEGylated formulations encapsulating riboflavin.
Aug 2020 DOI 10.14302/issn.2641-7669.ject-20-3529
Wen XianjieCorresponding author
Department of Anesthesiology, the Second People`s Hospital of Foshan City, Foshan, Guangdong Province, China.
Background Local anesthetic neurotoxicity is a common complication in clinical anesthesia, which can cause permanent nerve damage in severe cases. The T-type calcium channel is an important channel for regulating the excitability of neurons. Normally, extracellular calcium ions enter the cell through the T-type calcium channel to change the excitability of neurons. When the intracellular calcium is overloaded, it can cause cell damage. Aims To investigated the roles of T-type calcium channel in the SH-SY5Y cells injury induced by the bupivacaine. Methods The SH-SY5Y cell culture model was used to observe the effect of T-type calcium channel blocker NNC55-0396 on the neurotoxicity of bupivacaine hydrochloride by MTT methold,flow cytometry, Western blotting and other methods. Results The results show that NNC55-0396 can block the T-type calcium channel of SH-SY5Y cells, improve the decrease of cell viability caused by bupivacaine hydrochloride, reduce the level of intracellular calcium ion, reduce the expression of Cleavedcaspase-3, and reduce cell apoptosis. Conclusion The above results indicate that the T-type calcium channel is involved in the SH-SY5Y cell damage caused by bupivacaine hydrochloride, and blocking the T-type calcium channel can reduce the neurotoxicity of bupivacaine hydrochloride.
Aug 2020 DOI 10.14302/issn.2641-4538.jphi-20-3437
Rutayisire ErigeneCorresponding author
Department of public Health, Mount Kenya University Rwanda Kigali Rwanda
Acute malnutrition affects nearly 52 million of under five years children globally, 75% of them live in low to middle income countries. The treatment of acute malnutrition using supplement foods could help children recovering and could reduce the risk of sickness. The present study investigated the factors associated with recovery among children with moderate acute malnutrition (MAM) under a follow-up program at health facilities. A prospective study was conducted in 16 health centers of Kirehe District of Rwanda and included 200 children from 6 to 59 months. A semi-structured questionnaire was used for data collection. All children enrolled in the study spent three months in nutrition program at health centers. The results show that after 3 months in the program 77.5% recovered from MAM. Children aged above 36 to 59 months were recovered at 90% whereas children aged from 24-35 months were recovered at 73.5%. Micronutrients and deworming provided at health facility were contributed to the recovery as children who received them were recovered at 89.1% and for those who didn’t were recovery at 72.1%. The findings demonstrated that boys were 16 times more likely to recover from MAM in three months of intervention than girls (AOR=16.19, p<0.001, 95% CI: 5.39- 48.63). Children from moderate income families were 3 more likely to recover than those from very low income families (AOR=2.8, p=0.029, 95% CI: 1.11-7.51). Male gender, receiving micronutrients and deworming from health facilities and family income status were factors associated with MAM recovery status
Aug 2020 DOI 10.14302/issn.2694-2275.jzr-20-3435
Radwan EHCorresponding author
Damanhour University, Faculty of Science, Zoology department, Egypt
Background Nephrotoxicity is a complication due to the effect of some toxic chemicals on kidney. Current study planned to screen the effect of Trigonella foenumaqueous seeds extracts on EDTA induced nephrotoxicity. Trigonella foenum known for its various medicinal properties is also a natural antioxidant and a free radical scavenger with no documented evidence as a nephron-protective agent. Objective To investigate the protective effects of aqueous seed extracts of Trigonella foenum. Material and Methods The present study was used 40 male albino rats (Rattus albinus) with weight of (150 ± 10) g with divided into four groups: control gp; EDTA gp (95 mg/kg); Trigonella foenum gp (500 mg/kg) and EDTA + Trigonella f oenum gp by gastric tube daily for 4 weeks. Blood urea, creatinine, GFR, creatinine clearance, MDA and GPx analyses and microscopic examination of kidney were performed. Results In the present study, Blood samples were taken from all groups and concentration of serum urea, creatinine, GFR, Creatinine clearance, MDA and GPx were determined. Histopathological observations were observed in kidney tissue. Data were analyzed using analysis of variance (ANOVA). EDTA induced an increase in urea and creatinine as well as there was a decrease in the concentration of GFR and creatinine clearance. The level of MDA was increase while the concentration of GPx was decrease in the serum of EDTA group. The aqueous extracts of Trigonella seeds significantly prevented renal damage by normalizing increased levels of renal markers. The correction of oxidative stress biomarkers was consistent with amelioration of the histopathological changes induced by EDTA. Hence, it is suggested that ameliorative effect of aqueous extract of Trigonella foenumagainst EDTA induced nephrotoxicity. Conclusion The present data suggest that aqueous extract of Trigonella foenum exhibits reno-protective effect in EDTA induced renal damage.
Aug 2020 DOI 10.14302/issn.2328-0182.japst-20-3447
Taleb JihenCorresponding author
Laboratory of Active Biomolecules Valorisation, Higher Institute of Applied Biology of Medenine, University of Gabes, 4119 Medenine, Tunisia.
The cactus Opuntia ficus indica (L.) Mill. (Cactaceae) is widely used in Tunisian medicine for the treatment of various illnesses. The purpose of the present study was to investigate the antioxidant activities of cactus cladode extract (CCE) and to assess the protective effects of Opuntia ficus indica against osteoporosis induced by cadmium chloride in male Wistar rats. Adult male rats were divided into 4 groups of 9 each: a control group, a group injected with cadmium (3.5mg/kg) for 10 weeks, a group orally given a O. ficus indica cladodes aqueous extract (CCE) (100 mg /kg/day) for 10 weeks then treated with cadmium, and a group receiving only (CCE) for 10 weeks. Bone toxicity was estimated by examining femoral length and weight, calcium, phosphorus, alkaline phosphatase (ALP) and total tartrate-resistant acid phosphatase (ACP) levels in serum. Also, bone levels of calcium, phosphorus and vitamin C and bone mineral density (BMD) of femur diaphysis were measured. Alterations of these bone biomarkers and decreased BMD confirmed cadmium-induced bone toxicity. However, when cadmium was administered in rats given CCE, all the biological parameters underwent much less alteration. Administration of CCE was found to be beneficial by attenuating cadmium-induced femur damage. The protective effect of the plant is mainly attributed to its phenolic compounds that orchestrate antioxidant properties, as highlighted by HPLC-based analysis.
Aug 2020 DOI 10.14302/issn.2474-7785.jarh-20-3425
Jana SnehasisCorresponding author
Trivedi Science Research Laboratory Pvt. Ltd., Thane (W), Maharashtra, India.
The study was aimed to investigate the potential benefits of the Consciousness Energy Healing Treatment (the Trivedi Effect®) per se and Biofield Energy Healing treated novel test formulation in male Sprague Dawley rats for their antiaging activity by monitoring aging biomarkers such as brain-derived neurotrophic factor (BDNF), silent information regulator-1 (SIRT-1), and klotho protein. The test formulation was distributed into two parts. First part did not provide any Biofield Energy Treatment was denoted as the untreated sample, however the second part was received Biofield Energy Healing Treatment by a renowned Biofield Energy Healer, Mr. Mahendra Kumar Trivedi and defined as the Biofield Energy Treated sample. In this experiment, nine groups (n=10) were assigned, in which four were preventive maintenance groups. Among them, three groups of animals were also received Biofield Energy Healing Treatment per se (at day -15). BDNF was significantly increased by 25.83%, 19.35%, and 14.67% in the Biofield Energy Treated test formulation (G5), Biofield Energy Treatment per se at day -15 (G6), and Biofield Energy Treatment per se to animals plus Biofield Treated test formulation from day -15 (G8), respectively as compared to the disease control (G2) group. Moreover, expression of SIRT-1 protein was increased by 14.63% in the G5 group than the untreated test formulation (G4) group. Additionally, SIRT-1 activity was increased by 39.7%, 32.5%, 15.9%, and 136% in the G6, Biofield Energy Treated test formulation at day -15 (G7), G8, and Biofield Treatment per se (day -15) to animals plus untreated test formulation (G9) groups, respectively than the G4 group, while it was increased by 57.3% in the G9 group as compared to the G2 group. Besides, Klotho protein in kidney homogenate was significantly increased by 16.67% in the G5 group as compared to the G2 group. Altogether, the results showed a significant improvement of longevity mediators and antiaging biomarkers in the preventive maintenance groups. Therefore, results envisaged the significant slowdown of aging-related disorders and other complications in the preventive Biofield Energy Treatment group per se and/or Biofield Energy Treated Test formulation groups (viz. G6, G7, G8, and G9) comparatively with the disease control group and could be utilized against various aging-related disorders like Alzheimer's disease, hypertension, osteoporosis, cataracts, type 2 diabetes, cancer, etc. along with it could be used to extend the life-span, stress and immune-related disorders.
Jul 2020 DOI 10.14302/issn.2379-7835.ijn-20-3471
Yewande BAMIGBOYE AdeolaCorresponding author
Department of Science Laboratory Technology, The Polytechnic, Ibadan. Oyo State, Nigeria.
Spices have been frequently added to foods since ancient times, not only to enhance the taste but also as preservatives and medicinal agents. Their usage may be of concern due to possible contamination during processing and handling. The aim of this study was to investigate the physicochemical properties and heavy metals concentrations in some indigenous spices sold at two main markets namely Bodija and Apata markets in Ibadan, Oyo State, Nigeria. A total of eight commonly consumed spices were purposely analyzed for their proximate and mineral composition, physicochemical properties and anti-nutrients contents. Proximate analyses showed that the spices to contained (fresh matter ‘As consumed’) moisture content ranging from 11.74g in thyme to 59.36g/100g in scent leaves. Crude protein, fat, fibre, ash and carbohydrate contents ranged between 3.72 – 15.07g, 1.31 – 8.28g, 1.96 – 11.38g, 1.11 – 7.81g, and 17.80 – 50.77g/100g sample, respectively. All the spices contained high levels of potassium (176.3 – 739.6 mg), sodium (60.6 – 317 mg), calcium (78.5 – 423.9 mg), magnesium (82 – 322.1 mg) and iron (5.78 – 20.10 mg), but low levels of heavy metals – copper (0.17 – 0.68 mg), and manganese (0.32 – 1.05 mg)/100g respectively. Flavonoid was the most abundant phytochemical, while terpene was the least phytochemical in all the samples. The samples had very low concentrations of anti-nutrients, and could pose no threat to human health, as their values were within the regulatory standard. The antioxidants and phytochemicals in the spices can help in building up immunity and prevention of non-communicable diseases, hence, their consumption should be encouraged.
Jul 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3459
Ozcelik FatihCorresponding author
University of Health Sciences, Sultan 2. Abdulhamid Han Training and Research Hospital, Department of Medical Biochemistry, Istanbul, Turkey
As there is no specific treatment yet, the fight against the COVID-19 pandemic is being carried out with great difficulty today. The use of immune plasma is seen as a promising option since there is expectation that it will reduce mortality, as in influenza pandemics experienced in 1918 and 2009. However, the safety and effectiveness of this treatment option against SARS-CoV-2 viruses are not known for certain. In addition, the optimal obtaining methods and protection time of neutralizing antibodies to be used to provide passive immunization are not fully known. Therefore, it would be very useful to investigate the most effective neutralizing antibody collection methods without disrupting the overall structure and effectiveness of the antibodies subject to the use of the convalescent immune plasma. For this purpose, we found it appropriate to prepare a broad review on the structure and properties of antibodies, as well as the principles and storage conditions of antibodies to be used in passive immunization.
Jul 2020 DOI 10.14302/issn.2471-2140.jaa-20-3478
R.A. Mans DennisCorresponding author
Department of Pharmacology, Faculty of Medical Sciences, Anton de Kom University of Suriname, Paramaribo, Suriname
Plant-based preparations are commonly used in Suriname (South America) as adaptogens. In this study, fifteen alleged adaptogenic Surinamese plants have been assessed for their antioxidant activity (AA), total phenolic contents (TPC), and total flavonoid contents (TFC). The investigated plants were Anacardium occidentale, Spondiasdulcis, Annona muricata, Euterpe oleracea, Oenocarpus bacaba, Luffa acutangula, Punicagranatum, Malpighia emarginata, Syzygiumaqueum, Syzygiumcumini, Averrhoa carambola, and Renealmiaalpinia (fruit); Hibiscus sabdariffa (calyx); as well as Aloe vera and Cestrum latifolium (leaf). Aqueous extracts (1 - 3,000 μg/ mL) were prepared. AA was determined by the FRAP and the DPPH assay. TPC and TFC were determined by the Folin-Ciocalteu’s and an AlCl3 colorimetric method, respectively, using gallic acid (GA) and rutin (R), respectively, as standards. Data are means ± SDs (n ≥ 3; P < 0.05). FRAP values and DPPH-scavenging activities correlated positively with each other and with TPC but not with TFC. The preparations from M. emarginata, A. carambola, A. occidentale, O. bacaba, C. latifolium, and H. sabdariffa displayed the highest FRAP values (54 ± 14 to 412 ± 30 µM Fe2+/100 μg), DPPH-scavenging activities (IC50 values of 33 ± 14 to 250 ± 50 μg/mL), and TPC (51 ± 4 to 280 ± 78 µM GAE/100 µg). TFC of all samples were ≤ 10 ± 3 RE/100 µg. The adaptogenic properties of these plants may (partially) be attributed to their high content of antioxidant phenolic compounds and may make them candidates of novel sources of health-promoting antioxidants.
Jun 2020 DOI 10.14302/issn.2572-3030.jcgb-20-3407
Parviz MahmoudiCorresponding author
Department of Environmental Health Engineering, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Benzene is known as an environmental and industrial pollutant. One way to check the amount of exposure to benzene is to measure its metabolites in the urine. Trans, Trans-Muconic Acid which is one of its metabolites is also as a biological indicator of exposure to benzene. In this study, the relationship between the amount of this biomarker and the environmental benzene concentration was investigated in two groups of policemen working outdoors in the traffic-congested areas and indoor in the same area. The results showed that the highest amount of benzene was in Salman Farsi Station at 4.44 ppm. At the same time, the biomarker measured in the urine showed 127.20 μg / L, which was the highest amount. In addition, the amount of benzene in the outdoor was approximately 3 times more than indoor and the amount of biomarker measured in outdoor employees was two times more than indoors ones. In general, wherever there was more benzene, the biomarker would also show a higher amount.
May 2020 DOI 10.14302/issn.2639-3166.jar-20-3246
H. M. Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri, Khartoum North, Sudan
The fruit flies of familyTephritidae are considered as serious pests of Mango in Sudan. They cause substantial damage to Mango in all Mango production areas. The application of various pesticides appeared to be ineffective. Therefore, this study was carried out to investigate the efficacy of Spinosad as new promising control measure to the fruit flies. This study was carried out at Shendi area, River Nile State during the period from April 2012 to August 2014, where Pheromone and food bait traps were used for detection and monitoring the fruit flies species in the study area. Spinosad (0.24g\L) was applied as a partial spraying pesticide. Results indicated that; the application of Spinosad highly decreased the fruit flies numbers. The average number of fruit flies collected in April was (947.22 and 1001.67) for the treated and untreated orchards respectively. The numbers of fruit flies in the treated orchards had decreased gradually during May, June, July and August, 904.7, 760.22, 609.6 and 452.7, respectively, but in untreated orchards for the same months had increased to 1003.67, 1103.67, 1336.67and 1468.67 respectively. However, the infestation level in mango fruits in the treated orchards was found to be 2% compared with 64% for untreated one.
May 2020 DOI 10.14302/issn.2641-4538.jphi-20-3338
Chibueze Izah SylvesterCorresponding author
Department of Microbiology, Faculty of Science, Bayelsa Medical University, Yenagoa, Bayelsa State, Nigeria
This study investigated the acute toxicity of Clariasgariepinusfingerlings. The fingerlings of Clariasgariepinuswere acclimatized for 1 week before the range-finding test was carried out at varying concentrations. Sublethal concentration (viz: 0.00ppm, 10.80 ppm, 18.00 ppm, 25.20 ppm, 32.40 ppm and 39.60 ppm of the 2,4-D Dimethylamine salt) were made in a rectangular aquarium. Each experimental concentration was carried out in triplicate with 10 fish each. The media were renewed at every 24 hours throughout the experimental duration viz: 96 hours. When the fish were introduced into the aquarium containing the toxicants, they exhibited some behavioural changes including opercular movement, air gulping and irregular swimming pattern. The mortality rate significantly increased as the concentration of the 2,4-D Dimethylamine salt increased for each of the exposure duration. The LC50 values at 24, 48, 72 and 96 were 86.15 ppm, 36.28 ppm, 18.72 ppm and 15.68 ppm, respectively. From the findings of this study, there is a need for exercise caution in the use of 2,4-D Dimethylamine salt based herbicides close to the aquatic ecosystem.
May 2020 DOI 10.14302/issn.2692-1537.ijcv-20-3345
Ozcelik FatihCorresponding author
University of Health Sciences, Sultan 2. Abdulhamid Han Training and Research Hospital, Department of Medical Biochemistry, Istanbul, Turkey
While the COVID-19 pandemic has raised concerns about the future of people worldwide, it has made it necessary to take measures with high economic costs, including quarantine. We consider it is more logical for some scientists to investigate time-saving treatment options until vaccination studies, which are started to be studied rapidly, are accomplished or specific antiviral agents are found. In this context, treatment combinations of one or more of the immune modulators known as cytokines, which can stimulate or accelerate the immune system, should be tried. In our opinion, although such options are not as effective as specific treatments such as vaccines, such options will offer highly effective alternatives in times of emergency. For this reason, we found it appropriate to make a reminder by preparing a broad review about interferon gamma, which is an antivirus and is an immunomodulator and which plays a critical role in humoral and cellular immunity.
Apr 2020 DOI 10.14302/issn.2639-3166.jar-20-3283
Cuauhtémoc Negrete JaimeCorresponding author
Independent Researcher and Technical writer graduated in Autonomous Agrarian Antonio Narro University, Buenavista, Mexico.
In the country, food production is more compromised every day, despite zero efforts and government, agricultural and livestock sector, causing poverty, migration, marginalization among other social disorders in addition to food insecurity. In Mexico 34% of the population is engaged in agricultural tasks, with very small land areas. The fact that 85% of do not have more than 5 ha of arable land, and that among them, 90% do not reach 3 ha clearly indicates their great need for light machinery .The solution to these problems family farmers are provided with affordable technologies to increase their productivity. One of the most common problems in agriculture is the application of agrochemicals, which is tedious and dangerous when farmers are exposed to these highly toxic products, therefore a system is proposed is through the help of a drone or remote control helicopter, both of economic type connected by a hose to the sprinkler and a tank. Due to the danger of applying agrochemicals for family farmers who rarely follow the precautions to apply these products, the proposed alternative is attractive for small agricultural properties, although it is not free of cost, the drone and the optimal sprayer should be investigated.
Apr 2020 DOI 10.14302/issn.2470-0436.jos-20-3303
Manikandan R.Corresponding author
Department of Zoology, University of Madras, Guindy Campus, Chennai-600025
The effect of resveratrol, a free radical scavenger, during cataract development was evaluated in the Wistar rat pup model. This study investigated the possible free radical scavenging potential of resveratrol at 40 mg/ kg body wt dose in selenite-induced cataract in rat pups. Intraperitoneal injection of sodium selenite (15 µm mol/ kg body wt) in 8 to 10 day old rat pups lead to severe oxidative stress in the tissues evidenced by decreased antioxidants and increased lipid peroxidase, nitric oxide, superoxide anion, hydroxyl radical generation, inducible nitric oxide synthase (iNOS) as well as nuclear factor kappa B (NF-kB) expression levels that probably led to cataract formation. Selenite exposure also caused an increase in total calcium in the eye lens and significantly inhibited the activity of Ca2+ ATPase but not Na+/ K+ ATPase or Mg2+ ATPase. However, both pre- and co-treatments with resveratrol, but not post-treatment, led to an increase in antioxidant levels with a concomitant reduction in oxidative stress and also rescued the selenite-mediated increase in lens Ca2+ and inhibition of Ca2+ ATPase activity in the eye lens. The results of this study demonstrate antioxidants decrease and increase in free radical generation triggered by selenite causes the inactivation of lens Ca2+ ATPase leading to a rise in intracellular Ca2+ level. Resveratol treatment was able to prevent selenite-induced oxidative stress and in turn the inhibition of lens opacification. Thus, resveratrol has the potential to function as an anti-cataractogenic agent, possibly by preventing free radical-mediated accumulation of Ca2+ in the eye lens.
Apr 2020 DOI 10.14302/issn.2689-2855.jan-20-3244
Bendjemil BadisCorresponding author
DGM, FST, University of 8 Mai 1945 of Guelma, 24000 Guelma, Algeria
Nanocomposites are worn resistant materials used in cutting tool applications. The materials are composed of ultrafine powder hard phase grains surrounded by a tough binder phase carbon nanotubes (Mo2C)1-x–(TiC)x (2≤x≤4)//1Wt% SWCNTs. Composite bicarbide Mo2C-TiC was rapidly synthesised and simultaneously consolidated by field activated sintering technique (spark plasma sintering) at which the extensive volume expansion occurred as a function of the volumic fraction from 20 to 40 vol.% of TiC powders and 1 Wt.% of SWCNTs was reinforcement of the NCMC’s. The sintered powder mixture was examined by XRD patterns, the morphology of the obtained phase was observed by SEM and the phase compositions in different regions were analyzed by EDX. The composites were processed using Field Activated Sintering Technique, spark plasma sintering (SPS) at temperatures in the range of 1700-1800°C with addicting of SWCNTs. The effects of SWCNTs addition on phases morphology, microstructure hardness and fracture toughness of the nanocomposite were investigated. The best product contained 1.0 Wt% SWCNTs from (Mo2C)1-x–(TiC)x , x= 0.2 which was sintered at 1700°C, 70 MPa for 10 min, M0.8T0.2/ 1 Wt% SWCNTs exhibit a better density, highest hardness and good ductility. Relative densification was achieved 99.5 % from the theoretical and good mechanical properties like hardness and fracture toughness (KIC=5.6 Mpa m1/2) are improved. The results were confirmed using Raman scattering resonant spectroscopy.
Apr 2020 DOI 10.14302/issn.2639-3166.jar-20-3250
H. M. Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri, Khartoum North, Sudan
The Basil plant (Ocimumbasilicum L) is an annual herb; belongs to family Lamiaceae. It is found to be an important source for Methyl Eugenol (ME), the fruit flies attractant. This study was carried out at Shendi area with main objective to assess the amount of ME extracted from Ocimumbasilicumplant to evaluate its potentiality as fruit fly attractant. Plants of basil were grown till to maturity, then the differential harvest of leaves, flower and seeds were chemically investigated for volatilome. Five basil formulations (paste and powder of leaves, paste and powder of flowers, isolated ME from basil oil) were used for trapping potential of Bactrocera spp in mango orchards, as compared to the synthetic ME. The oil was extracted using Soxhlet apparatus, steam and water distillation, and analyzed using GCMS. The results revealed that highest extracted oil percentages was obtained from flowers, leaves, seed and stem were 5.75%, 3.03%, 0.02% and 0.21% respectively. Moreover, the basil traps catch was found to be lower compared with that of the control traps. Furthermore, when extracted ME from basil plant was compared with the standard synthetic, it gave lower catch fruit flies numbers, but the difference was not significant (>0.05). In conclusion, the basil raw derivates are confirmed not to be attractive for flies but the oil distillable from the leaves could be in force of its attractant ME contents and insecticide potency.
Mar 2020 DOI 10.14302/issn.2689-2855.jan-20-3263
Bendjemil BadisCorresponding author
DGM, FST, University of 8 Mai 1945 of Guelma, 24000 Guelma, Algeria
Nanocomposites are worn resistant materials used in cutting tool applications. The materials are composed of ultrafine powder hard phase grains surrounded by a tough binder phase carbon nanotubes (Mo2C)1-x–(TiC)x (2≤x≤4)//1Wt% SWCNTs. Composite bicarbide Mo2C-TiC was rapidly synthesised and simultaneously consolidated by field activated sintering technique (spark plasma sintering) at which the extensive volume expansion occurred as a function of the volumic fraction from 20 to 40 vol.% of TiC powders and 1 Wt.% of SWCNTs was reinforcement of the NCMC’s. The sintered powder mixture was examined by XRD patterns, the morphology of the obtained phase was observed by SEM and the phase compositions in different regions were analyzed by EDX. The composites were processed using Field Activated Sintering Technique, spark plasma sintering (SPS) at temperatures in the range of 1700-1800°C with addicting of SWCNTs. The effects of SWCNTs addition on phases morphology, microstructure hardness and fracture toughness of the nanocomposite were investigated. The best product contained 1.0 Wt% SWCNTs from (Mo2C)1-x–(TiC)x , x= 0.2 which was sintered at 1700°C, 70 MPa for 10 min, M0.8T0.2/ 1 Wt% SWCNTs exhibit a better density, highest hardness and good ductility. Relative densification was achieved 99.5 % from the theoretical and good mechanical properties like hardness and fracture toughness (KIC=5.6 Mpa m1/2) are improved. The results were confirmed using Raman scattering resonant spectroscopy.