Faculty of Medicine and Health Sciences

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https://scholar.sun.ac.za/handle/10019.1/13

The vision of the Faculty of Medicine and Health Sciences is to be a dynamic, people-centred and inclusive environment, internationally recognised for its excellence in research, education and clinical training in medicine and health sciences, and for the contribution it makes to improving health and health care in South Africa, the African continent and beyond.

This faculty was known as the Faculty of Health Sciences until 30 April 2012.

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Browsing Faculty of Medicine and Health Sciences by browse.metadata.advisor "Abrahaams, Naeema"

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    Epigenomic analysis of posttraumatic stress disorder in female rape survivors in South Africa
    (Stellenbosch : Stellenbosch University, 2021-03) Nothling, Jani; Hemmings, Sian M. J.; Seedat, Soraya, 1966-; Abrahaams, Naeema; Stellenbosch University. Faculty of Medicine and Health Sciences. Dept. of Psychiatry.
    ENGLISH SUMMARY : Compared to other trauma types, rape is associated with a high risk of developing posttraumatic stress disorder (PTSD). Women are at increased risk of developing PTSD compared to men and are also more frequently victims of sexual assault. PTSD is a complex, multifactorial disorder and an array of demographic, trauma-related, psychological and genetic putative risk and protective factors mediate or contribute to the development and course of the disorder. Few studies have comprehensively investigated demographic and psychological risk and protective factors for PTSD in a longitudinal prospective design, especially beyond the 3-month post-rape period and in low- to medium-income countries. There are currently no known epigenome-wide association studies (EWASs) investigating differential methylation in relation to PTSD in (1) an African population and (2) a sample of rape-exposed women exclusively. There are also no known studies investigating longitudinal change in the hypothalamic-pituitary-adrenal (HPA) axis associated candidate gene FK506 binding protein (FKBP5) in relation to PTSD in a sample of rape-exposed women exclusively. In this study we investigated the demographic, rape/assault-related, psychological, genetic (FKBP5) and epigenetic (epigenome-wide differential methylation) risk and protective factors associated with the development and course of PTSD symptoms over six months. Self-report measures and specimen collection was completed at baseline (within 20 day after the rape), 3-months and 6-months post-rape as part of the Rape Impact Cohort Evaluation (RICE) study. The RICE sample consisted of 852 Black African rape-exposed women, between the ages of 16 and 40 years and from a low socio-economic background. We found that baseline demographic, rape/assault-related and psychological protective factors were not significant predictors of PTSD symptoms over time. Baseline depression and rape stigma were significant psychological risk factors for the development and course of PTSD post-rape. We also identified one intergenic CpG site (cg01700569) that was differentially methylated in relation to PTSD status at 3-months post-rape on a genome-wide level. Thirty-four differentially methylated regions were identified and included a region in the HPA-axis-associated adenylate cyclase activating polypeptide 1 (ADCYAP1) gene and the neuroendocrine-associated brain-specific serine/threonine-protein kinase 2 (BRSK2) gene. Decreased BRSK2 and ADCYAP1 methylation at 3-months and 6-months post-rape was associated with increased PTSD symptom scores at the same time-points. Decreased FKBP5 methylation was a predictor of increased PTSD symptom scores at 3-months and 6-months post-rape. High childhood trauma and the CC genotype of FKBP5 rs1360780 resulted in decreased FKBP5 methylation and increased PTSD scores at baseline. The study builds on existing literature, highlighting the psychological risk factors for the development and course of PTSD in rape-exposed women. Methylation findings also build on the existing literature regarding the role of epigenetics in PTSD, although the genome-wide finding implicating differential methylation of BRSK2 in the development of PTSD is a novel finding in human studies. The study provides evidence that both psychological and biological factors have an impact on the symptom trajectory of PTSD and that both should be considered when designing and implementing interventions for the treatment of PTSD post-rape.
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    Psychosocial care of people living with HIV : the case of Tzaneen, South Africa
    (Stellenbosch : Stellenbosch University, 2012-03) Mashele, Steven Charles; Joyner, Kate; Abrahaams, Naeema; Stellenbosch University. Faculty of Health Sciences. Dept. of Interdisciplinary Health Sciences. Nursing Science.
    ENGLISH ABSTRACT: The overall objective of this study was to ascertain whether lay counsellors offer psychosocial counselling to clients at antiretroviral therapy clinics. The study was conducted at two clinics in the Greater Tzaneen municipality, Limpopo province, South Africa. The sample of 14 consisted of seven female lay counsellors and seven HIV positive clients, three females and four males, at Xihlovo and Nyeleti antiretroviral clinics. They were interviewed using 11-item and 12-item interview guides, respectively. Interviews were conducted in the local languages. Qualitative data were collected for the study. The data were audiotaped, translated, transcribed and then categorised into a thematic framework. HIV positive participants were found to be suffering from psychosocial consequences of living with HIV, such as shock, denial, anger and blame, fear of death, fear of disclosure, and intimate-partner violence. However, lay counsellors did not offer effective counselling that could relieve the psychosocial consequences. They instead used religion to console clients, discouraged clients from expressing their feelings, and minimised their clients’ concerns. It is recommended that lay counsellors be taught basic counselling theories as part of their training so that they are better able to screen their clients for psychosocial problems and provide basic counselling.