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Molecular inventory of faecal microflora in patients with Crohn's disease

Mangin, I., Bonnet, R., Seksik, P., Rigottier-Gois, L., Sutren, M., Bouhnik, Y., Neut, C., Collins, M.D., Colombel, J.F., Marteau, P. and Dore, J. (2004) Molecular inventory of faecal microflora in patients with Crohn's disease. Fems Microbiology Ecology, 50 (1). pp. 25-36. ISSN 0168-6496

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To link to this item DOI: 10.1016/j.femsec.2004.05.005

Abstract/Summary

Intestinal microbial community is involved in the pathogenesis of Crohn's disease, but knowledge of its potential abnormalities has been limited by the impossibility to grow many dominant intestinal bacteria. Using sequence analysis of randomly cloned bacterial 16S ribosomal DNA, the dominant faecal species from four Crolin's disease patients and four controls were compared. Whereas marked inter-individual differences were observed in the faecal microflora of patients, three remained distantly related to controls on the basis of their operational taxonomic unit composition. Bacteroides vidgatus and closely related organisms represented the only molecular species shared by all patients and exhibited an unusually high rate of occurrence. Escherichia coli clones were isolated only in two patients with ileocolonic Crohn's disease. Moreover, numerous clones belonged to phylogenetic groups or species that are commonly not dominant in the faecal microflora of healthy subjects: Pectinatus, Sutterella, Verritcomicrobium, Fusobacterium, Clostridium disporicum, clostridium glycolicum, Clostridium ramosum, Clostridium innocuum and Clostridium perfringens. (C) 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13169
Uncontrolled Keywords:Crohn's disease, 16S rRNA gene sequencing, faecal bacterial diversity, INFLAMMATORY-BOWEL-DISEASE, HLA-B27 TRANSGENIC RATS, 16S RIBOSOMAL-RNA, BACTERIAL-FLORA, SEQUENCE-ANALYSIS, ESCHERICHIA-COLI, HUMAN GUT, DIVERSITY, SUSCEPTIBILITY, PATHOGENESIS

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