| Study of the cultivable microflora of the large intestine of the rat under varied environmental hyperbaric pressures. | |
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MedLine Citation:
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PMID: 22305555 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND/PURPOSE(S): We conducted an in vivo experiment to investigate the effect of hyperbarometric air pressure on the quantity and composition of the cultivable microflora of the large intestine. METHODS: Using selective culture-based methods, we enumerated from the large intestine total aerobes and total anaerobes, and indicator bacteria such as Escherichia coli, other Enterobacteriaceae, Bifidobacterium spp., Lactobacillus spp. and Clostridium perfringens, and studied their quantitative variation. RESULTS: Total aerobes and facultative anaerobes (E. coli and other Enterobacteriaceae) were increased with an increase in air pressure, whereas the increase caused a drastic reduction in the numbers of total anaerobes and Clostridium perfringens. Bifidobacterium spp. and Lactobacillus spp. were affected slightly by the altered air pressures. Variation in the numbers of these groups of bacteria was correlated to dose and duration of hyperbaric treatment. CONCLUSION: We conclude from our results that air pressure is an important exogenous factor that strongly modulates bacterial colonization of the large intestine and the composition of the intestinal microflora, and that the occurrence of gastrointestinal disorders during hyperbarism is a result of alteration in the indigenous microflora. |
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Authors:
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Chiranjit Maity; Atanu Adak; Tarun Kumar Pathak; Bikas Ranjan Pati; Keshab Chandra Mondal |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-2-2 |
Journal Detail:
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Title: Journal of microbiology, immunology, and infection = Wei mian yu gan ran za zhi Volume: - ISSN: 1995-9133 ISO Abbreviation: - Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-2-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100956211 Medline TA: J Microbiol Immunol Infect Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011. Published by Elsevier B.V. |
Affiliation:
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Department of Microbiology, Vidyasagar University, Midnapore 721102, West Bengal, India. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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