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Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa

Food borne diseases are a major public health concern worldwide. Staphylococcus aureus is one of the potential food borne pathogens which causes nosocomial and community acquired infections. In the present study, 74 representative strains of S. aureus isolated and characterized in previous study fro...

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Autores principales: Akindolire, Muyiwa Ajoke, Kumar, Ajay, Ateba, Collins Njie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6251985/
https://www.ncbi.nlm.nih.gov/pubmed/30505180
http://dx.doi.org/10.1016/j.sjbs.2015.10.011
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author Akindolire, Muyiwa Ajoke
Kumar, Ajay
Ateba, Collins Njie
author_facet Akindolire, Muyiwa Ajoke
Kumar, Ajay
Ateba, Collins Njie
author_sort Akindolire, Muyiwa Ajoke
collection PubMed
description Food borne diseases are a major public health concern worldwide. Staphylococcus aureus is one of the potential food borne pathogens which causes nosocomial and community acquired infections. In the present study, 74 representative strains of S. aureus isolated and characterized in previous study from different milk samples were subjected to random amplified polymorphic DNA (RAPD) polymerase chain reaction (PCR) and enterobacterial repetitive intergenic consensus (ERIC)-PCR to generate fingerprints to determine the genetic relationships of the isolated strains. A total of 20 RAPD patterns were generated and the number of amplified fragments obtained ranged from 0 to 8 with molecular weight ranging from 250 to 2000 bp. A dendrogram based on fingerprinting pattern grouped isolates into twelve major clusters (I–XII). In the case of ERIC-PCR 9 banding patterns were obtained with amplicons ranging from 1 to 8 and band sizes ranging from 250 to 2000 bp. A total of four major clusters (I–IV) were observed in the dendrogram based on ERIC fingerprints. The discrete banding patterns obtained both from ERIC-PCR and RAPD-PCR showed remarkably the genetic diversity of S. aureus. The findings of this study indicate that raw, bulk and pasteurized milk in the North-West Province was contaminated with toxigenic and multi-drug resistant S. aureus strains. This emphasizes the need to implement appropriate control measures to reduce contamination as well as the spread of virulent S. aureus strains to reduce the burden of disease in humans.
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spelling pubmed-62519852018-11-30 Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa Akindolire, Muyiwa Ajoke Kumar, Ajay Ateba, Collins Njie Saudi J Biol Sci Article Food borne diseases are a major public health concern worldwide. Staphylococcus aureus is one of the potential food borne pathogens which causes nosocomial and community acquired infections. In the present study, 74 representative strains of S. aureus isolated and characterized in previous study from different milk samples were subjected to random amplified polymorphic DNA (RAPD) polymerase chain reaction (PCR) and enterobacterial repetitive intergenic consensus (ERIC)-PCR to generate fingerprints to determine the genetic relationships of the isolated strains. A total of 20 RAPD patterns were generated and the number of amplified fragments obtained ranged from 0 to 8 with molecular weight ranging from 250 to 2000 bp. A dendrogram based on fingerprinting pattern grouped isolates into twelve major clusters (I–XII). In the case of ERIC-PCR 9 banding patterns were obtained with amplicons ranging from 1 to 8 and band sizes ranging from 250 to 2000 bp. A total of four major clusters (I–IV) were observed in the dendrogram based on ERIC fingerprints. The discrete banding patterns obtained both from ERIC-PCR and RAPD-PCR showed remarkably the genetic diversity of S. aureus. The findings of this study indicate that raw, bulk and pasteurized milk in the North-West Province was contaminated with toxigenic and multi-drug resistant S. aureus strains. This emphasizes the need to implement appropriate control measures to reduce contamination as well as the spread of virulent S. aureus strains to reduce the burden of disease in humans. Elsevier 2018-11 2015-10-23 /pmc/articles/PMC6251985/ /pubmed/30505180 http://dx.doi.org/10.1016/j.sjbs.2015.10.011 Text en © 2015 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Akindolire, Muyiwa Ajoke
Kumar, Ajay
Ateba, Collins Njie
Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa
title Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa
title_full Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa
title_fullStr Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa
title_full_unstemmed Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa
title_short Genetic characterization of antibiotic-resistant Staphylococcus aureus from milk in the North-West Province, South Africa
title_sort genetic characterization of antibiotic-resistant staphylococcus aureus from milk in the north-west province, south africa
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6251985/
https://www.ncbi.nlm.nih.gov/pubmed/30505180
http://dx.doi.org/10.1016/j.sjbs.2015.10.011
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