Abstract：
:The effect a common fecal organism, Bacteroides fragilis, has on the sporulation of Clostridium perfringens, an organism linked to some cases of antibiotic associated diarrhea, was examined. Established B. fragilis cultures significantly decreased the number of heat resistant spores formed by C. perfringens ATCC 12915 and increased the number of vegetative cells. To determine if short-chain fatty acids (SCFA), fermentation products of B. fragilis, inhibited sporulation, the SCFA were added to sporulation broth. Sporulation decreased in the presence of acetate, isobutyrate, isovalerate, and succinate. Vegetative cell number for C. perfringens decreased in the cultures with isobutyrate. Propionate did not affect sporulation or vegetative cell number. The data support the hypothesis that the decrease in short-chain fatty acid concentration following antibiotic therapy predisposes patients to diarrheas caused by C. perfringens.
journal_name
Anaerobejournal_title
Anaerobeauthors
Wrigley DMdoi
10.1016/j.anaerobe.2004.05.006subject
Has Abstractpub_date
2004-10-01 00:00:00pages
295-300issue
5eissn
1075-9964issn
1095-8274pii
S1075-9964(04)00063-0journal_volume
10pub_type
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