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Browsing Psychiatry by Author "Viljoen, Margaretha"
Now showing items 1-17 of 17
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Viljoen, Margaretha; Bipath, Priyesh; Roos, J.L. (Johannes Louw) (AOSIS, 2018-09-11)Pellagra is characterised by dermatological, gastrointestinal and neuropsychiatric manifestations. Millions contracted the disease and hundreds of thousands died between the time it was first recorded until pellagra was ...
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Viljoen, Margaretha; Swanepoel, Annie; Bipath, Priyesh (Elsevier, 2015-03)The term niacin is the generic name for the two compounds nicotinic acid and nicotinamide, the major dietary precursors for two important coenzymes, nicotinamide adenine dinucleotide (NAD) and its phosphorylated form, ...
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Van der Westhuizen, Deborah; Claassen, Nico; Viljoen, Margaretha (NISC (Pty) Ltd and Informa UK Limited [trading as Taylor & Francis Group], 2018)OBJECTIVE : A case study describing the association between vagal tone and social-emotional adaptation in two distressed adolescent–parent (A–P) pairs during a Positive Cognitive Behaviour Therapy Programme (P-CBTP). METHODS ...
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Thomas, Bianca; Bipath, Priyesh; Viljoen, Margaretha (Makerere University Medical School, 2019-09)BACKGROUND : Neopterin, a product of cell-mediated immunity, is a non-specific biomarker of inflammation. Plasma/serum is generally the body fluid of choice for neopterin assessment, but urine is often used as it does ...
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Thomas, Bianca Lee; Viljoen, Margaretha (Routledge, 2020)An association between attachment and academic performance appears to be consistently found in children; however, reports on such an association in adolescents are contradictory. This study aimed to determine whether the ...
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Viljoen, Margaretha; Levay, Peter Ferenc (Academy of Science of South Africa, 2021-11)The importance of adequate physical activity for older people cannot be overestimated. Evidence exists that physical exercise can improve quality of life; benefit brain areas involved with executive control; delay the ...
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Grant, C.C. (Catharina Cornelia); Steenkamp, B.; Gauche, L.; Becker, Piet J.; Ker, James A.; Roos, J.L. (Johannes Louw); Viljoen, Margaretha (Clinics Cardiv, 2007)Co-morbidity between physical disease, especially cardiovascular, and psychological disturbances is well documented. In psychiatric patients, the potential for dysrhythmogenic incidences is increased by the fact that many ...
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Thomas, Bianca Lee; Viljoen, Margaretha (Karger, 2016)OBJECTIVE : The aim of this study was to assess baseline EEG brain wave activity in children with attention-deficit/hyperactivity disorder (ADHD) and to examine the effects of evoked attention and methylphenidate on this ...
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Viljoen, Margaretha; Thomas (nee Negrao), Bianca Lee (IOS Press, 2021)BACKGROUND: Psychosocial and physical stressors can elicit the stress response, co-ordinated by interactions between neuroendocrine and inflammatory processes. The central role of the immune system, specifically low- grade ...
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Panzer, Annie; Viljoen, Margaretha; Roos, J.L. (Johannes Louw) (In House Publications, 2007-05)Anxiety disorders are amongst the most common psychiatric disorders affecting approximately 25% of all adults. Fear and anxiety have many shared neuroanatomical and neurochemical characteristics. In this paper we ...
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A non-specific biomarker of disease activity in HIV/AIDS patients from resource-limited environments Bipath, Priyesh; Levay, Peter Ferenc; Olorunju, Steve; Viljoen, Margaretha (Makerere University Medical School, 2015-06)BACKGROUND : A general non-specific marker of disease activity that could alert the clinician and prompt further investigation would be of value in patients with HIV/AIDS, especially in resource limited environments. OBJECTIVE ...
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Viljoen, Margaretha; Claassen, Nicolaas (Elsevier, 2023-02)Indoor mould growth presents a potential health risk. The aim of this writing is to provide an overview on the pathophysiological aspects of exposure to dampness-associated indoor mould and mycotoxins. The paper briefly ...
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Viljoen, Margaretha; Bipath, Priyesh; Tosh, Cheryl A. (Cambridge University Press, 2021-06)OBJECTIVE : Pellagra is a nutritional deficiency disease associated with niacin (vitamin B3) deficiency. The history of pellagra is well documented for Europe and the USA, but less is known about the prevalence in sub-Saharan ...
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Viljoen, Margaretha (University of Pretoria, 2003)Please read the abstract in the section 00front of this document
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Viljoen, Margaretha; Claassen, Nico (Mattioli1885, 2022-12)By the mid-20th century, pellagra had virtually been eradicated from the USA and Europe. In contrast, outbreaks of pellagra, as diagnosed by skin lesions, today still occur in sub-Saharan Africa. We argue that outbreaks ...
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Bipath, Priyesh; Levay, Peter Ferenc; Viljoen, Margaretha (BioMed Central, 2016-02-17)BACKGROUND : The essential amino acid tryptophan cannot be synthesised in the body and must be acquired through dietary intake. Oxidation of tryptophan, due to immune induction of the enzyme indoleamine 2,3- dioxygenase ...
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Thomas, Bianca Lee; Claassen, Nico; Becker, Piet J.; Viljoen, Margaretha (Karger, 2019-05)BACKGROUND : Despite strong reservations regarding the validity of a number of heart rate variability (HRV) measures, these are still being used in recent studies. AIMS : We aimed to compare the reactivity of ostensible ...
Now showing items 1-17 of 17