200,071 results match your criteria: "South Africa ; Regent University College of Science and Technology[Affiliation]"

A Survey of Wild Indigenous Orchid Populations in Western Australia Reveals Spillover of Exotic Viruses.

Viruses

January 2025

School of Medical, Molecular and Forensic Sciences, College of Environmental and Life Sciences, Murdoch University, 90 South Street, Perth 6150, Australia.

is a terrestrial orchid endemic to southwestern Australia. The virus status of has not been studied. Eighty-three samples from 16 populations were collected, and sequencing was used to identify RNA viruses from them.

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Pregnant women living with HIV (PWLWHIV) are at an increased risk of developing obstetrics complications such as pre-eclampsia (PE). Antiretroviral therapy (ART) remains the standard treatment for PWLWHIV and non-pregnant women. However, its use has been associated with adverse liver conditions, particularly hepatotoxicity, often marked by elevated liver enzymes (LEEs) as demonstrated by an increased aspartate transferase (AST), alanine transaminase (ALT), and alkaline phosphatase (ALP) in PWLWHIV on ART.

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Bioactive Molecules, Ethnomedicinal Uses, Toxicology, and Pharmacology of Sond (Fabaceae): Systematic Review.

Plants (Basel)

January 2025

College of Agriculture and Environmental Science (CAES), University of South Africa, Priva Bag X06, Florida 0710, South Africa.

Plants have long been used to treat serious illnesses in both humans and animals. A significant underappreciated medicinal tree, Sond is utilized by many different ethnic groups to cure a wide range of illnesses. A variety of electronic databases, including ScienceDirect, Scopus, Scielo, Scifinder, PubMed, Web of Science, Medline, and Google Scholar, were used to search the literature on , using key words such as uses, survey, pharmacology, antigonococcal, toxicity, phytochemistry and others.

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Optimizing In Vitro Propagation of Schönland Using Leaf, Root, and Inflorescence.

Plants (Basel)

January 2025

Instituto de Bioingeniería, Universidad Miguel Hernández, 03202 Elche, Spain.

, a species native to South Africa, is characterized by its limited growth and scarcity, contributing to high production costs. Countries like China and Turkey are known for exporting globally. Tissue culture offers an efficient method for mass-producing unique and beautiful species such as This study tested Murashige and Skoog (MS) basal media supplemented with various concentrations of IBA (0.

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Medicinal plants are sources of crude traditional herbal medicines that are utilized to reduce the risk of, treat, or manage diseases in most indigenous communities. This is due to their potent antioxidant and anti-inflammatory effects. It is estimated that about 80% of the population in developing countries rely on herbal traditional medicines for healthcare.

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Climate Change-Induced Decline in Succulent in Namibia's Arid Regions.

Plants (Basel)

January 2025

Department of Plant and Soil Sciences, University of Pretoria, Hatfield, Pretoria P.O. Box X20, South Africa.

The global rise in temperatures due to climate change has made it difficult even for specialised desert-adapted plant species to survive on sandy desert soils. Two of Namibia's iconic desert-adapted plant species, and the quiver tree , have recently been shown to be under threat because of climate change. In the current study, three ecologically important Namibian milk bushes were evaluated for their climate change response.

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The Effect of the 14:10-Hour Time-Restricted Feeding (TRF) Regimen on Selected Markers of Glucose Homeostasis in Diet-Induced Prediabetic Male Sprague Dawley Rats.

Nutrients

January 2025

Department of Human Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.

Background: Prediabetes is a condition that often precedes the onset of type 2 diabetes mellitus (T2DM). Literature evidence indicates that prediabetes is reversible, making it an important therapeutic target for preventing the progression to T2DM. Several studies have investigated intermittent fasting as a possible method to manage or treat prediabetes.

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Introduction: Undernutrition in low- and middle-income countries (LMICs) remains a leading public health challenge. It accounts for one-third of the under-five mortality rate in sub-Saharan Africa (SSA). This study applied the composite index of anthropometric failure (CIAF) to assess the prevalence of various standalone and coexisting forms of undernutrition and identify associated risk factors.

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Graphene's incorporation into polymers has enabled the development of advanced polymer/graphene nanocomposites with superior properties. This study focuses on the use of a microcellular foamed polystyrene (PS)/graphene (GP) nanocomposite (3 wt%) for nickel (II) ion removal from aqueous solutions. Adsorption behavior was evaluated through FTIR, TEM, SEM, TGA, and XRD analyses.

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Survey and Identification of Fusarium Head Blight Pathogens of Wheat in the Western Cape Region of South Africa.

Pathogens

January 2025

Plant Omics Laboratory, Department of Biotechnology, Faculty of Natural Sciences, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa.

head blight (FHB) is a major disease affecting wheat production worldwide, caused by multiple species. In this study, seven strains were isolated from wheat fields across the Western Cape region of South Africa and identified through phylogenetic analysis. The strains were classified into three species complexes: the species complex (FGSC), species complex (FIESC), and species complex (FTSC).

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Real-world data on HIV drug resistance (HIVDR) after transitioning to tenofovir disoproxil fumarate/lamivudine/dolutegravir (TLD) are limited. We assessed HIVDR rates and patterns in clients with virological failure (VF) after switching from an NNRTI-based regimen to TLD. A cross-sectional study was conducted in Gaza, Mozambique (August 2021-February 2022), including adults on first-line ART for ≥12 months who transitioned to TLD and had unsuppressed viral load (VL) ≥ 1000 copies/mL six months post-transition.

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Anthrax is a zoonotic disease characterized by rapid onset with usual fatal outcomes in livestock and wildlife. In Ethiopia, anthrax is a persistent disease; however, there are limited data on the isolation and molecular characterization of strains. This study aimed to characterize isolated from animal anthrax outbreaks between 2019 and 2024, from different localities in Ethiopia.

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A Novel Strain of Detected from Chiggers (Acari: Trombiculidae) on Wild Rodents.

Pathogens

January 2025

Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency, 187 Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju 28159, Chungbuk, Republic of Korea.

Scrub typhus is caused by intracellular bacteria belonging to the genus . Until 2010, the endemic region was thought to be restricted to the Asia-Pacific region. species have recently been discovered in South America, Africa, Europe, and North America.

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Predictive machine learning models have made use of a variety of scoring systems to identify clinical deterioration in ICU patients. However, most of these scores include variables that are dependent on medical staff examining the patient. We present the development of a real-time prediction model using clinical variables that are digital and automatically generated for the early detection of patients at risk of deterioration.

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Compounds Involved in the Invasive Characteristics of .

Molecules

January 2025

Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki 761-0795, Kagawa, Japan.

L. is native to tropical America and has naturalized in many other tropical, subtropical, and temperate regions in Asia, Africa, Oceania, North and South America, and Europe. infests diverse habitats with a wide range of climatic factors, and its population increases aggressively as one of the world's 100 worst invasive alien species.

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Linn is a well-known African traditional herb due to its tremendous medicinal and nutritional properties. It is used worldwide for the treatment of different ailments and diseases. In the present study, the phytochemical and antioxidant activity of South African fruit pulp extracts was evaluated.

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The honeydew moth, Millière (Lepidoptera: Pyralidae), is native to the Mediterranean Basin. However, it has recently been reported as an emerging grapevine pest in southern European Union countries and in the Middle East, North Africa, and South America. This may be attributed to the global warming trends.

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Postharvest Practices and Farmers' Knowledge in Managing Maize Pests in the Eastern Cape Province, South Africa.

Insects

January 2025

Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University, Mthatha 5117, South Africa.

This study aims to establish the pest management approach for pests of stored maize and determine the current control practices. Semi-structured questionnaires were administered to 77 smallholder farmers from 16 villages at King Sabata Dalindyebo local municipality in the Eastern Cape Province of South Africa. The results revealed that about 50% of the farmers had a formal education, the average farm size was 1 hectare, and they were predominantly cultivating yellow maize.

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Rossi causes important agricultural losses in olive growing regions. Despite its economic relevance, the expansion history and biogeography of and other olive-feeding fruit flies remain unclear. We used mitogenomic data of species from a broad geographic range to explore possible historical biogeographic patterns in and other olive-feeding fruit flies.

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Pharmacological Properties of Extracts-A Plant Used to Treat and Manage Elephantiasis.

Int J Mol Sci

January 2025

Infectious Diseases and Medicinal Plants Research Niche Area, Botany Department, Faculty of Science and Agriculture, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.

(Thunb.) Less. has recently become a plant species of interest to researchers due to its biological activities and less toxic effects.

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This narrative review examines the dynamic interplay between carbohydrate intake and diabetes medications, highlighting their combined molecular and clinical effects on glycemic control. Carbohydrates, a primary energy source, significantly influence postprandial glucose regulation and necessitate careful coordination with pharmacological therapies, including insulin, metformin, glucagon-like peptide (GLP-1) receptor agonists, and sodium-glucose cotransporter-2 (SGLT2) inhibitors. Low-glycemic-index (GI) foods enhance insulin sensitivity, stabilize glycemic variability, and optimize medication efficacy, while high-GI foods exacerbate glycemic excursions and insulin resistance.

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Bile salt hydrolase (BSH), a probiotic-related enzyme with cholesterol-assimilating and anti-hypercholesterolemic abilities, has been isolated from intestinal bacteria; however, BSH activity of bacteria in bile-salt-free (non-intestinal) environments is largely unknown. Here, we aimed to identify BSH from non-intestinal and characterize its enzymatic function. We successfully isolated a plasmid-encoded () from , and the recombinant EfpBSH showed BSH activity that preferentially hydrolyzed taurine-conjugated bile salts, unlike the activity of known BSHs.

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Impact of COVID-19 on Utilization of Healthcare Services Among People Living with HIV (PLHIV): A Systematic Review.

Medicina (Kaunas)

January 2025

Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Kerey and Zhanibek Khans St. 5/1, Astana 010000, Kazakhstan.

People living with HIV/AIDS have been impacted notably by the COVID-19 pandemic in diverse dimensions. Although some impacts of COVID-19 on PLHIV have been well documented, there is still insufficient research that captures the overall understanding of the implications of COVID-19 for the healthcare utilization among PLHIV. This review aims to evaluate the impact of COVID-19 on PLHIV, narrowing it down to women living with HIV/AIDS.

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The challenges of antimicrobial resistance (AMR) to human health have pushed for the discovery of a new antibiotics agent from natural products. Cyanobacteria are oxygen-producing photosynthetic prokaryotes found in a variety of water habitats. Secondary metabolites are produced by cyanobacteria to survive extreme environmental stress factors, including microbial competition.

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Nitrogen inputs for sustainable crop production for a growing population require the enhancement of biological nitrogen fixation. Efforts to increase biological nitrogen fixation include bioprospecting for more effective nitrogen-fixing bacteria. As bacterial nitrogenases are extremely sensitive to oxygen, most primary isolation methods rely on the use of semisolid agar or broth to limit oxygen exposure.

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