200,238 results match your criteria: "South Africa; and Mary McKillop Institute[Affiliation]"

The modification of conventional liposomes for targeted antimicrobial delivery to treat infectious diseases.

Discov Nano

January 2025

Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa.

Some of the most crucial turning points in the treatment strategies for some major infectious diseases including AIDS, malaria, and TB, have been reached with the introduction of antimicrobials and vaccines. Drug resistance and poor effectiveness are key limitations that need to be overcome. Conventional liposomes have been explored as a delivery system for infectious diseases bioactives to treat infectious diseases to provide an efficient approach to maximize the therapeutic outcomes, drug stability, targetability, to reduce the side-effects of antimicrobials, and enhance vaccine performance where necessary.

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Antiretroviral therapy (ART) adherence is crucial for HIV viral suppression. Tenofovir diphosphate (TFV-DP) concentrations in dried blood spots (DBS) offer a potential tool for monitoring and supporting adherence. We assessed acceptability and preferences of fingerstick-based DBS collection and drug-level feedback among 224 people living with HIV (PLWH) in South Africa.

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Dimensions of the pelvic and skull bones are known to be sexually dimorphic in various population groups. The recovery of these bones is potentially beneficial in estimating the sex in forensic cases. Since both bones are not always available for forensic analysis, standards for sex estimation must be established for other bones of the postcranial skeleton.

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Presented herein is a DFT/TDDFT study of -tetrakis(4-hydroxyphenyl)porphyrin (H[THPP]) and its -deprotonated tetraanionic form; the latter was modeled as both a free tetraanion and with various counterions. Based on our calculations, the experimentally observed hyperporphyrin spectra are attributed to an admixture of phenol/phenoxide character into the a-type HOMO of tetraphenylporphyrin. The admixture results in an elevation of the orbital energy of the HOMO in relation to other frontier orbitals, which accounts for the observed spectral redshifts.

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From the leaves of , fourteen compounds were isolated and identified: D-mannitol (), a mixture of β-sitosterol () and stigmasterol (), α-amyrin (), betulin (), lupeol (), lupenone (), betulinic acid (), taraxerol (), 3β-(E)-coumaroyltaraxerol (), 3β-(Z)-coumaroyltaraxerol (), ursolic acid (), stigmasterol 3-O-β-D-glucoside (), and β-sitosterol 3-O-β-D-glucoside (). These compounds were analysed through NMR spectroscopy (both 1D and 2D) and by comparing them to previously published data. Compounds , , , and - have been identified from this species for the first time.

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Pantoea agglomerans is one of four Pantoea species reported in the USA to cause bacterial rot of onion bulbs. However, not all P. agglomerans strains are pathogenic to onion.

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High burden of abnormal cervical smears in South African primary health care: health programmes implications.

Health Promot Int

January 2025

School of Health Systems and Public Health, University of Pretoria, HW Snyman Building, Bophelo Road, Pretoria 0084, South Africa.

Cervical cancer is the second most common malignancy among South African women and the load of abnormal cervical smears has clinical, programmatic and policy implications. This cross-sectional study of women who presented for cervical cancer screening aimed to determine the prevalence of abnormal cervical smears and associated factors in primary health care (PHC) facilities in Gauteng-the most densely populated province in South Africa. A questionnaire collected data on socio-demography, tobacco use, sexual behaviours, HIV status, past treatment for sexually transmitted infections (STI) and cervical cancer screening in the past 10 years.

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Improving quality of care could avert most of the 4.5 million maternal and neonatal deaths and stillbirths that occur each year. The Global Financing Facility (GFF) aims to catalyse the national scale-up of maternal and newborn health (MNH) interventions through focused investments.

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On some integral inequalities of Grüss type involving the generalized fractional Saigo -integral operator.

Heliyon

January 2025

Department of Mathematics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 602105, India.

Using the generalized Saigo fractional integral operator, the authors of this study prove several novel fractional integral inequalities of the Grüss type. By fixing the values of functions, specific situations derived from previously established findings are shown. The ultimate purpose of this work is to investigate the Grüss-type integral inequalities with the Saigo -integral operator, a more generalized integral operator.

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Common agricultural weeds among alien invasive plants in China: Species lists and their practical managing strategies.

Heliyon

January 2025

Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College (Research Institute of Rice Industrial Engineering Technology) of Yangzhou University, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, China.

Plant invasion is a big challenge to weed management of agricultural lands. In order to reveal the list of common weed species among alien invasive plants, and reveal practical management strategies, we extracted the species lists of common alien agricultural weeds (CAAWs) of various arable lands and plantations, by comparing the lists of alien invasive plant species and common weed species published in China. Totally 88 species from 18 families were recognized as CAAWs, among which 43.

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Dyslipidemia is a prominent pathological feature responsible for oxidative stress-induced cardiac damage. Due to their high antioxidant content, dietary compounds, such as aspalathin and sulforaphane, are increasingly explored for their cardioprotective effects against lipid-induced toxicity. Cultured H9c2 cardiomyoblasts, an in vitro model routinely used to assess the pharmacological effect of drugs, were pretreated with the dietary compounds, aspalathin (1 μM) and sulforaphane (10 μM) before exposure to palmitic acid (0.

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Background: This research investigated the dynamics of fee-free higher education in South Africa, analysing the interplay of socioeconomic, political, and institutional factors to elucidate the complexities surrounding its implementation and impact. Using a causal loop diagram approach (CLD), the study aims to identify key factors to effective implementation, how they interact to shape the outcome of the policy, and actionable strategies to address the challenges hindering the policy sustainability.

Method: A participatory approach was used to developing the CLD, integrating insights from an extensive literature review and stakeholder opinion.

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Objectives: The study explores how humanity influences the development of digitalization on population dynamics during the changing times of the Covid-19 pandemic.

Methods: A scoping review was conducted using PRISMA guidelines. Fifteen full-text articles were selected from 40 identified studies (2020-2023).

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Global burden of chronic kidney disease due to dietary factors.

Front Nutr

January 2025

Department of Pharmacy, Changde Hospital, Xiangya School of Medicine, Central South University (The First People's Hospital of Changde City), Changde, Hunan, China.

Background: We aimed to assess the global impact of chronic kidney disease (CKD) attributable to dietary risk factors.

Methods: The research utilized data from the Global Burden of Disease Study 2021 to evaluate age-standardized mortality rates (ASMR), disability-adjusted life years (DALYs), and estimated annual percentage changes (EAPCs) linked to CKD resulting from dietary risk factors.

Results: From 1990 to 2021, both the ASMR and age-standardized DALY rate (ASDR) for CKD attributable to dietary risk factors exhibited an overall increasing trend globally.

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An analysis of artificial intelligence automation in digital music streaming platforms for improving consumer subscription responses: a review.

Front Artif Intell

January 2025

Faculty of Natural and Applied Sciences, Department of Computer Science and Information Technology, Sol Plaatje University, Kimberley, South Africa.

The rapid adoption and evolving nature of artificial intelligence (AI) is playing a significant role in shaping the music streaming industry. AI has become a key player in transforming the digital music streaming industry, particularly in enhancing user experiences and driving subscription growth. Through AI automation, platforms personalize music recommendations, optimize subscription offerings, and improve customer support services.

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Introduction: Tobacco use typically begins during adolescence. There is a lack of comprehensive evidence on the use of different tobacco products among adolescents in Africa.

Aims And Methods: We used the most recent Global Youth Tobacco Surveys from 53 African countries, covering 2003-2020, to estimate the overall and gender-specific prevalence of each type of tobacco product by country, Africa region, World Bank income group, and age group among adolescents aged 11-17 years.

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Silent witnesses: unveiling the epidemic of femicides in North-west Tshwane, South Africa - a decade of analysis.

BMC Public Health

January 2025

Sefako Makgatho University, Ground Floor, Clin Path Building, Room No. 37. Garankuwa, Pretoria, South Africa.

Background: Femicides, defined as the gender-based killing of women, are a pressing public health issue worldwide, with South Africa experiencing some of the highest rates globally. This study focuses on the North-west region of Tshwane, particularly the Garankuwa area, aiming to address gaps in understanding the epidemiology, demographics, circumstances, and pathology associated with femicides. The Garankuwa mortuary serves as the primary site for this investigation, providing a detailed analysis over a ten-year period, shedding light on contributing risk factors in the context of systemic gender inequality.

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AAV Capsid Modification and Its Influence on Viral Protein Stoichiometry and Packaging Fitness: Current Understandings and Future Direction.

Mol Biotechnol

January 2025

Medical Biotechnology and Immunotherapy Research Unit, Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, 7700, South Africa.

The field of gene therapy has witnessed significant advancements in the utilization of Adeno-associated virus (AAV) owing to its inherent biological advantages. Targeted AAV vectors are generated through genetic or chemical modification of the capsid for user-directed purposes. However, this process can result in imbalances in viral protein sequence homogeneity, stoichiometry, and functional transduction vector units, thereby introducing new challenges.

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Aim: To determine the prevalence of keratoconus and its associated risk factors within the adult population of Trinidad and Tobago.

Method: A population-based cross-sectional study was conducted among adults in Trinidad and Tobago, utilizing the Keratoconus Risk Assessment Questionnaire (KRIS) for data collection. Data were exported to the Statistical Package for Social Sciences (SPSS) version 27 for analysis.

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Population studies provide insights into the interplay between the gut microbiome and geographical, lifestyle, genetic and environmental factors. However, low- and middle-income countries, in which approximately 84% of the world's population lives, are not equitably represented in large-scale gut microbiome research. Here we present the AWI-Gen 2 Microbiome Project, a cross-sectional gut microbiome study sampling 1,801 women from Burkina Faso, Ghana, Kenya and South Africa.

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Global meta-analysis shows action is needed to halt genetic diversity loss.

Nature

January 2025

International Union for the Conservation of Nature (IUCN) Conservation Genetics Specialist Group (CGSG), .

Mitigating loss of genetic diversity is a major global biodiversity challenge. To meet recent international commitments to maintain genetic diversity within species, we need to understand relationships between threats, conservation management and genetic diversity change. Here we conduct a global analysis of genetic diversity change via meta-analysis of all available temporal measures of genetic diversity from more than three decades of research.

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The field of psychology has rapidly transformed its open science practices in recent years. Yet there has been limited progress in integrating principles of diversity, equity and inclusion. In this Perspective, we raise the spectre of Questionable Generalisability Practices and the issue of MASKing (Making Assumptions based on Skewed Knowledge), calling for more responsible practices in generalising study findings and co-authorship to promote global equity in knowledge production.

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Global regional and national burden of intracerebral hemorrhage between 1990 and 2021.

Sci Rep

January 2025

Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.

Intracerebral hemorrhage (ICH) represents one of the most devastating forms of stroke, characterized by spontaneous bleeding into the brain parenchyma. This neurological emergency carries a substantial burden of mortality and long-term disability worldwide. A comprehensive understanding of ICH's evolving global impact from 1990 to 2021 remains essential for healthcare planning and resource allocation.

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Background: A pilot eyecare programme aimed to address the urgent eye health needs of older Zanzibari craftswomen. We investigated the impact of correcting presbyopia on their subjective well-being (SWB) 6 months post-correction and assessed the cost-effectiveness of a women-targeted presbyopia correction programme.

Methods: This study involved Zanzibari craftswomen aged 40 and older with presenting and corrected distance visual acuity better than 6/12 in both eyes and were presbyopic.

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Background: Garment workers are at high risk of musculoskeletal disorders (MSDs) due to repetitive physical tasks, long working hours and varying workstations. As there is no existing epidemiological overview of MSDs among garment workers, this systematic review aimed to evaluate the global evidence on prevalence of MSDs in this population.

Methods: A systematic review of the literature was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

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