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Anaerobe. 2011 Dec;17(6):407-9. doi: 10.1016/j.anaerobe.2011.04.012. Epub 2011 Apr 29.

Intestinal lactoflora in Estonian and Norwegian patients with antibiotic associated diarrhea.

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1
Department of Microbiology, University of Tartu, Ravila 19, 50411 Tartu, Estonia.

Abstract

The disruption of intestinal microbiota is an important risk factor for the development of Clostridium difficile caused antibiotic associated diarrhea (AAD). The role of intestinal lactoflora in protection against C. difficile is unclear. Fecal samples (n = 74) from AAD patients were investigated for C. difficile and lactobacilli by culture and real-time PCR. Lactobacilli were identified by enterobacterial repetitive intergenic consensus PCR (ERIC-PCR) and sequencing of 16S rRNA. In C. difficile negative cases we found somewhat higher counts of intestinal Lactobacilli (5.02 vs. 2.15 CFU log(10)/g; p = 0.053) by culture and more frequently Lactobacillus plantarum (33.3% vs. 9.4%; p = 0.03) as compared with positive ones. Results of total counts of lactobacilli comparing Estonian and Norwegian samples were conflicting by culture and PCR. We found higher colonization of Norwegian AAD patients with L. plantarum (21% vs. 5%, p = 0.053) and Estonians with Lactobacillus gasseri (19% vs. 2%, p = 0.023). Particular lactobacilli (e.g. L. plantarum) may have a role in protection against C. difficile, whereas the meaning of total counts of lactobacilli remains questionable. In different persons and nations, different lactobacilli species may have a protective role against C. difficile.

PMID:
21549208
DOI:
10.1016/j.anaerobe.2011.04.012
[Indexed for MEDLINE]

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