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A study at the Brooklyn Chest Hospital to assess the change in the oral carriage of Candida species in patients co-infected with HIV and TB, before and after antifungal therapy

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dc.contributor.advisor Van Zyl AW, Prof en
dc.contributor.advisor Basson NJ, Dr en
dc.contributor.author Fisher JM en
dc.date.accessioned 2016-09-22T08:33:30Z
dc.date.available 2016-09-22T08:33:30Z
dc.date.created 2000 en
dc.date.submitted 2002 en
dc.identifier.uri http://hdl.handle.net/20.500.11892/29725
dc.description.abstract The aim of this study at the Brooklyn Chest Hospital (BCH) was to assess the change in the oral carriage of "Candida" species in twenty-nine patients co-infected with the Human Immunodeficiency Virus (HIV) and Tuberculosis (TB), before and after anti-fungal treatment. Each patient accepted onto the study underwent a comprehensive oral and peri-oral examination where the presence, site and clinical features of all oral and peri-oral lesions were recorded. The purpose of the examination was to provide a clinical diagnosis of oral candidosis. Each patient was also asked to provide a sample of oral fluid for laboratory analysis. This was collected using an oral rinse. The results of a variety of laboratory investigations were used to identify the species of "Candida" obtained from the oral rinse. Both the oral and peri-oral examination and the oral rinse procedure were repeated after one month and at three months. A sample from each oral rinse was inoculated on CHROMagar "Candida" chromogenic medium (CHROMagar Candida, France, Paris). CHROMagar is used for the isolation and presumptive identification of "Candida" sp. from other yeasts on the basis of strongly contrasted colony colours, which are produced by the reactions of species-specific enzymes with a proprietary chromogenic substrate. After forty-eight hours the CHROMagar plate was examined for growth, when a record of colony morphology and colour was made. A single sample from each different colour-coded colony was taken and streaked onto a Sabouraud plate (Oxoid, Basingstoke, England) and then incubated for forty-eight hours at thirty-seven degrees centigrade. A variety of laboratory investigations were subsequently carried out on a single colony taken from the Sabouraud agar plate (Oxoid). The results of these tests were used to identify the individual species of "Candida" isolated from each oral rinse. Oral candidosis was the most prevalent oral lesion observed on admission and at three months. Six different species of "Candida" were identified during this study, namely "Candida albicans, Candida dubliniensis, Candida krusei, Candida glabrata, Candida parapsilosis", and "Candida tropicalis. C.albicans" was the most commonly identified species in study population. "Candida dubliniensis" was isolated and identified for the first time in a South African HIV population. Each specimen of "Candida" sp. identified by laboratory analysis was tested for sensitivity to Nystatin, Amphotericin B and Fluconazole anti-fungal agents. An additional sensitivity test was performed using Ajoene and Allicin (extracts of garlic) to assess the comparative antifungal properties of these compounds. en
dc.language English en
dc.subject Medical sciences: Surgery en
dc.subject Dentistry en
dc.title A study at the Brooklyn Chest Hospital to assess the change in the oral carriage of Candida species in patients co-infected with HIV and TB, before and after antifungal therapy en
dc.type Masters degree en
dc.description.degree MSc en


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