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Clinical and Vaccine Immunology, November 2006, p. 1231-1236, Vol. 13, No. 11
1071-412X/06/$08.00+0 doi:10.1128/CVI.00267-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.
Department of Life Science, College of Agriculture, Meiji University, Higashimita, Tama-ku, Kawasaki 214-8571, Japan
Received 22 July 2006/ Returned for modification 17 August 2006/ Accepted 12 September 2006
Butyrivibrio fibrisolvens MDT-1, a butyrate-producing strain, was evaluated for use as a probiotic to prevent enterocolitis. Oral administration of the MDT-1 strain (109 CFU/dose) alleviated the symptoms of colitis (including body weight loss, diarrhea, bloody stool, organic disorder, and mucosal damage) that are induced in mice drinking water that contains 3.0% dextran sulfate sodium. In addition, myeloperoxidase (MPO) activity levels in colonic tissue were reduced, suggesting that MDT-1 mitigates bowel inflammation. The addition of MDT-1 culture supernatant inhibited the growth of nine clinical isolates of Campylobacter jejuni and Campylobacter coli that could potentially cause enterocolitis. Infection of mice with C. coli 11580-3, one of the isolates inhibited by MDT-1 in vitro, resulted in diarrhea, mucosal damage, increased MPO activity levels in colonic tissue, increased numbers of C. coli in the cecum, and decreased body weight gain. However, administration of MDT-1 to mice, prior to and during C. coli infection, reduced these effects. These results suggest that Campylobacter-induced enterocolitis can be alleviated by using B. fibrisolvens as a probiotic.
Published ahead of print on 20 September 2006.
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