24,598 results match your criteria: "University of the Witwatersrand; F.[Affiliation]"

One of the outstanding features of chronic hepatitis B infection (CHB) is its strong association with liver fibrosis. CHB induced inflammation and injury trigger multiple biochemical and physical changes that include the promotion of a wide range of cytokines, chemokines and growth factors that activate hepatic stellate cells (HSCs) CHB induced activation of hepatic stellate cells (HSCs) is regarded as a central event in fibrogenesis to directly promote the synthesis of myofibroblasts and the expression of a range of materials to repair injured liver tissue. Fibrogenesis is modulated by the mainstream epigenetic machinery, as well as by non-coding RNA (ncRNA) that are often referred to as an ancillary epigenetic response to fine tune gene expression.

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Clinicians knowledge of cancer: A study in Ghana's Bono region.

J Oncol Pharm Pract

January 2025

Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.

Background: Cancer is a growing public health concern in Ghana, with rising prevalence, incidence, and mortality rates. Clinicians play a crucial role in cancer prevention and control by providing accurate information and early detection services. This study assessed the level of cancer knowledge among a cross-section of clinicians in the Bono region of Ghana, focusing on their knowledge of cancer, signs, symptoms, and risk factors.

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This report details the case of a 29-year-old male patient who presented at a tertiary-level trauma centre with multiple stab wounds to the face, chest, and back. Despite not undergoing surgical intervention or exhibiting any apparent cerebrospinal fluid (CSF) leakage during the initial evaluation. The patient's condition deteriorated, with subsequent cultures from CSF and blood confirmed extensively drug-resistant (XDR) Acinetobacter baumannii (A.

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Background: Occupational injuries (OI) remains a global health issue, claiming approximately 1000 lives daily. More needs to be known about OI burdens among artisans in low-income settings. Therefore, this study assessed the factors influencing OIs among carpenters and bricklayers, who are informal artisans in Nigeria.

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Introduction: The COVID-19 pandemic accelerated new vaccine development. Limited safety data necessitated robust global safety surveillance to accurately identify and promptly communicate potential safety issues. The African Union Smart Safety Surveillance (AU-3S) program established the Joint Signal Management (JSM) group to support identification of potential vaccine safety concerns in five pilot countries (Ethiopia, Ghana, Kenya, Nigeria, South Africa), accounting for approximately 35% of the African population.

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The assessment of research performance is widely seen as a vital tool in upholding the highest standards of quality, with selection and competition believed to drive progress. Academic institutions need to take critical decisions on hiring and promotion, while facing external pressure by also being subject to research assessment. Here we present an outlook on research assessment for career progression with specific focus on promotion to full professorship, based on 314 policies from 190 academic institutions and 218 policies from 58 government agencies, covering 32 countries in the Global North and 89 countries in the Global South.

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Background: Tremor in essential tremor and in tremor-dominant Parkinson's disease is assessed by subjective observations in patients undergoing focused ultrasound thalamotomy, a minimally invasive procedure intended to alleviate tremor in these patients.

Objective: To develop an objective tool for tremor analysis to be used before and after focused ultrasound thalamotomy treatment in the treated hand (contralateral to ablation) and non-treated (ipsilateral to ablation).

Methods: Using image processing and signal processing that utilized images of a Archimedes spiral drawing, we created a tool to analyze tremor.

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Background: In South Africa, one in five adolescents experience pregnancy and face heightened rates of interpersonal violence and mental health challenges. Yet, few interventions are tailored to them.

Methods: 28 pregnant adolescents reporting past year intimate partner violence and/or non-partner rape were purposively recruited in antenatal clinics in Johannesburg to attend a 6-session arts-based intervention, delivered by 4 graduate art therapy students alongside clinical supervision.

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Eight years after WHO adopted a resolution to eliminate hepatitis B by the year 2030, the disease remains a global public health concern, with vertical transmission of HBV being a major obstacle to this goal. Our study aimed to determine the HBV infection status of pregnant women in South Africa at a national level to evaluate the risk of vertical transmission and provide evidence for public health decision-making. We conducted HBsAg testing on 1,942 HIV-uninfected and 2,312 HIV-infected pregnant women from South Africa's public health sector in 2017, followed by HBeAg testing on HBsAg-positive samples.

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The fibula, despite being traditionally overlooked compared to the femur and the tibia, has recently received attention in primate functional morphology due to its correlation with the degree of arboreality (DOA). Highlighting further fibular features that are associated with arboreal habits would be key to improving palaeobiological inferences in fossil specimens. Here we present the first investigation on the trabecular bone structure of the primate fibula, focusing on the distal epiphysis, across a vast array of species.

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Objectives: Unlike other diseases, cancer is not just a genome disease but should broadly be viewed as a disease of the cellular machinery. Therefore, integrative multifaceted approaches are crucial to understanding the complex nature of cancer biology. Bcl-2 (B-cell lymphoma 2), encoded by the human BCL-2 gene, is an anti-apoptotic molecule that plays a key role in apoptosis and genetic variation of Bcl-2 proteins and is vital in disrupting the apoptotic machinery.

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Background: Disclosure of oral pre-exposure prophylaxis (PrEP) use for HIV prevention may improve adherence to PrEP; however, disclosure can be challenging and may result in stigma. Here, we describe disclosure of PrEP use among young women enrolled in a contraceptive study.

Methods: In this qualitative study, we conducted semi-structured, in-depth, face-to-face interviews with 13 women aged 18-25 years who initiated oral PrEP for HIV prevention during the Evidence for Contraceptive Options and HIV Outcomes (ECHO) Trial.

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Background: During the COVID-19 pandemic, atypical respiratory syncytial virus (RSV) circulation patterns emerged, with the occurrence of RSV activity outside the typical winter season. This study investigates the impact of COVID-19 and associated non-pharmaceutical interventions (NPIs) on RSV seasonality.

Methods: The onset, offset and peak of RSV epidemics from 2018 to 2022 across 12 European countries were determined using the 3% positivity threshold method.

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Family-centred intervention optimises the development of communication abilities and academic outcomes in children with hearing loss. Cognisance of family values, respect for family differences and adaptations to cultural and linguistic diversity ensure the collaboration of parent-professional relationships. This study investigated the parental involvement and parental perceptions regarding the communication intervention approaches implemented (i.

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Introduction: Antiretroviral therapy (ART) increases the life expectancy of persons living with HIV (PLWH), but not without potentially serious adverse effects. Tenofovir disoproxil fumarate (TDF) can cause nephrotoxicity, manifesting as acute kidney injury (AKI) that may persist after treatment discontinuation. Kidney injury biomarkers such as kidney injury molecule-1 (KIM-1), retinol-binding protein-4 (RBP-4), interleukin-18 (IL-18), and neutrophil gelatinase-associated lipocalin (NGAL) can aid early diagnosis and predict TDF-associated nephrotoxicity.

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The prevalence of urinary incontinence (UI) in older women in low- and middle-income countries (LMICs) is not well understood. We conducted a rapid literature review to assess the burden of UI in this population and contextualize findings from a household survey of women aged 40 and older in Nouna, in northwestern Burkina Faso. The rapid review included 21 survey articles.

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Background: Despite efforts to promote optimal breastfeeding practices, the practice of exclusive breastfeeding is low in South Africa. We conducted a trial to determine whether text messaging plus motivational interviewing prolonged exclusive breastfeeding during the first six months of life and improved child health outcomes.

Methods: We conducted a randomized parallel group-controlled trial between July 2022 and May 2024, at a secondary-level healthcare facility.

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Background: Athletes participating in low-impact sports such as cycling and swimming are at increased risk for low bone mineral density, which may lead to long-term health issues. Exercise is known to increase bone mineral density, but there is little knowledge of the effects of this in athletes participating in low-impact sports. This review aims to identify potential exercise interventions that could improve bone health in these athletes.

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Objectives: Evidence regarding interventions to engage men and boys to improve sexual and reproductive health and rights (SRHR) has grown rapidly across subtopics such as HIV, family planning and gender-based violence (GBV). We conducted a review of the effectiveness of interventions to engage men and boys across SRHR domains, lessons learnt about successful programming, and about harms/unintended consequences, in low- and middle-income countries (LMIC).

Design: Systematic review of reviews following Cochrane guidelines.

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Despite the successful rollout of antiretroviral therapy (ART) and positive ART outcomes in the Kingdom of Eswatini, adolescents still present poor ART outcomes including low viral load suppression and suboptimal ART adherence. The aim of the study was to explore the perceptions of adolescents living with HIV (ALHIV) on the barriers and facilitators to ART adherence in Eswatini. We conducted a qualitative study using in-depth interviews among 29 ALHIV and on ART in Eswatini in December 2023.

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Tuberculosis (TB) is a major health burden in Africa. Although TB is treatable, anti-TB drugs are associated with adverse drug reactions (ADRs), which are partly attributed to pharmacogenetic variation. The distribution of star alleles (haplotypes) influencing anti-TB drug metabolism is unknown in many African populations.

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The Overlap of Cardiac and Respiratory Disease.

Respirology

January 2025

Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.

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Dried blood spot (DBS) assays to quantify novel and repurposed drugs for the treatment of rifampicin-resistant tuberculosis (RR-TB) would facilitate pharmacokinetic studies and therapeutic drug monitoring in low-middle income settings, considering their ease of application and simple sample storage requirements. We describe a DBS method for the simultaneous quantification of bedaquiline and metabolite N-desmethyl bedaquiline, linezolid, levofloxacin, and clofazimine. The analytes were extracted from the matrix and isolated by solid-phase extraction.

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Cost-effectiveness and budget impact analysis of peritoneal dialysis and haemodialysis in South Africa.

BMC Health Serv Res

January 2025

SAMRC/Wits Centre for Health Economics and Decision Science - PRICELESS SA, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 2193, South Africa.

Background: More than 800 million people are affected by chronic kidney disease (CKD) worldwide. In South Africa, the prevalence of CKD increased by 67% between 1999 and 2006. Haemodialysis (HD), peritoneal dialysis (PD), and kidney transplant are the three main modalities used for managing end stage kidney disease.

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