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Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Molecular and Cell Biology
2014
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| _version_ | 1867613217089388544 |
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| access_status_str | Open Access |
| author | Du Plessis, Sarah Jane |
| author2 | Abratt, Valerie Rose |
| author_browse | Abratt, Valerie Rose Du Plessis, Sarah Jane |
| author_facet | Abratt, Valerie Rose Du Plessis, Sarah Jane |
| author_sort | Du Plessis, Sarah Jane |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/10357 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:37.404Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Molecular and Cell Biology |
| publisherStr | Department of Molecular and Cell Biology |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/10357 Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART Du Plessis, Sarah Jane Abratt, Valerie Rose Reid, Sharon J Cell Biology Includes bibliographical references. Progression of the HIV disease is characterised by a massive depletion of CD4+ T cells and it has been shown that patients living with a more advanced HIV infection have a higher risk of developing diarrhoea due to the disruption of the gastrointestinal microbiota caused by either the HIV-infection or the use of antibiotics and drugs such as highly active antiretroviral therapy (HAART). An imbalance in the microbial composition, attributable to a disturbed mucosal barrier, as well as increased permeability and inflammation caused by HIV, can influence the metabolic (carbohydrate fermentation) and protective functions provided by the microbiota. The effect of HIV on the intestinal microbiota has not been widely examined and those studies that have focused on HIV and the gastrointestinal tract, have investigated it mainly from a virological perspective. Consequently, the aim of the study was to ascertain whether the diversity and/or abundance of the endogenous intestinal microbiota of South African HIV-positive patients was disrupted on account of HIV within the gastrointestinal tract. An additional aim was to determine whether the administration of HAART affected the microbiota during a 6 month longitudinal study. The diversity of the intestinal microbial composition was characterised with respect to the total bacteria, Bifidobacterium and Lactobacillus species using PCR-DGGE. qPCR was used to determine the abundance of total bacteria, Bifidobacterium, Lactobacillus, Escherichia coli, the Bacteroides/Prevotella, Clostridium coccoides and Clostridium leptum groups. ... In addition, three potential intestinal pathogens (Clostridium difficile, Campylobacter jejuni and Salmonella enterica) were monitored by qPCR during this period, to determine their prevalence in the HIV-positive patients. 2014-12-28T14:49:57Z 2014-12-28T14:49:57Z 2012 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/10357 eng application/pdf Department of Molecular and Cell Biology Faculty of Science University of Cape Town |
| spellingShingle | Cell Biology Du Plessis, Sarah Jane Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART |
| thesis_degree_str | Doctoral |
| title | Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART |
| title_full | Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART |
| title_fullStr | Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART |
| title_full_unstemmed | Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART |
| title_short | Molecular characterisation of selected gastrointestinal microbiota in South African HIV-positive patients during HAART |
| title_sort | molecular characterisation of selected gastrointestinal microbiota in south african hiv positive patients during haart |
| topic | Cell Biology |
| url | http://hdl.handle.net/11427/10357 |
| work_keys_str_mv | AT duplessissarahjane molecularcharacterisationofselectedgastrointestinalmicrobiotainsouthafricanhivpositivepatientsduringhaart |