Cited by 109Escherichia coli research studiesInflammatory Bowel DiseaseGut microbiota and health

Virulence properties of Escherichia coli strains isolated from patients with inflammatory bowel disease.

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Giaffer, M H, Holdsworth, C D, Duerden, B I·1992·Gut

Abstract

Escherichia coli strains cultured from 74 patients with inflammatory bowel disease at different stages of disease activity (Crohn's disease (40), ulcerative colitis (34)) and 18 healthy controls were studied in relation to haemolysin and verotoxin production and enteroadherence. Disease activity was assessed by standard clinical and laboratory tests. Haemolytic E coli were isolated from 18% of patients with Crohn's disease, 24% with ulcerative colitis, and 11% of healthy controls. None of these differences was significant. No verotoxin producing strains were detected among the 216 E coli isolates examined but the extract from five strains (Crohn's (4), ulcerative colitis (1) produced a distinctive cytopathic effort on Vero cell monolayers which was later shown not to be due to verotoxin. The adhesion indices of E coli isolates cultured were: mean (SEM) 42.2 (6.4) for Crohn's disease, 43.3 (6.2) for ulcerative colitis, and 11.3 (2.0) for normal controls (p less than or equal to 0.0001). Adhesive E coli were isolated from 62% of patients with Crohn's disease and 68% with ulcerative colitis but from only 6% of normal controls (p less than or equal to 0.0002). Neither haemolysin production nor enteroadherence was dependent upon disease activity, disease location, sulphasalazine treatment, or previous intestinal resection. These results indicate that only enteroadherent E coli were frequently associated with inflammatory bowel disease; their relation to the pathogenesis of these conditions, however, remains uncertain.

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  1. Drasar BS, Hill MJ. Human intestinal flora. The distribution of bacterialflora in the intestine. London: Academic press, 1974: 36-43.
  2. Levine MM. Escherichia coli that cause diarrhoea: entero- toxigenic, enteropathogenic, enteroinvasive, enterohaemor- rhagic and enteroadherent. ] Infect Dis 1987; 155: 377-89.
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  4. Burke DA, Axon ATR. Adhesive I.schenchia co/i in inflam- on July 24, 2023 by guest. Protected by copyright. http://gut.bmj.com/ Gut: first published as 10.1136/gut.33.5.646 on 1 May 1992. Downloaded from matory bowel disease and infective diarrhoea. BMJ 1988; 297: 102-4.
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  6. Karmali MA, Petric M, Lim C, Cheung R, Arbus G. Sensitive method for detecting low numbers of Verotoxin-producing Escherichia coli in mixed cultures by use of colony sweeps and polymexin extraction of Verotoxin. I Clin Microbiol 1085; 22: 614-9.
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  8. Vahlne G. Serological typing of the colon bacteria. Acta Pathol Microbiol Scand 1945 (suppl 62). on July 24, 2023 by guest. Protected by copyright. http://gut.bmj.com/ Gut: first published as 10.1136/gut.33.5.646 on 1 May 1992. Downloaded from

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Authors
Giaffer, M. H., Holdsworth, C. D., & Duerden, B. I.
Affiliations
Royal Hallamshire Hospital (GB)
Venue
Gut
Publisher
BMJ
Published
1992-05
Volume
33
Issue
5
Pages
646-650
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2032299180
Cited by
109
References
21
Citations by year
2026: 1 · 2024: 2 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 6 · 2019: 2 · 2018: 2 · 2017: 1 · 2016: 3 · 2015: 5 · 2014: 7 · 2013: 1 · 2012: 5
FWCI
2.39
Type
journal article
Language
en
Open access
Locations
  • Gut (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Escherichia coli research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
Escherichia coli, inflammatory bowel disease, Crohn's disease, ulcerative colitis, hemolysin, Shiga toxin, disease activity, bacterial virulence, sulfasalazine, bowel resection
MeSH terms
Adult, Bacterial Adhesion, Bacterial Toxins, Colitis, Ulcerative, Crohn Disease, Enterotoxins, Escherichia coli, Female, Hemolysin Proteins, Humans, Male, Middle Aged, Virulence, Shiga Toxin 1

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