Cited by 312Inflammatory mediators and NSAID effectsGut microbiota and healthInflammatory Bowel Disease

Resistance of germfree rats to indomethacin-induced intestinal lesions

Robert, André, Asano, Tomoaki·1977·Prostaglandins

Abstract

Indomethacin given orally to conventional rats produced in three days a syndrome, often fatal, of intestinal lesions characterized by multiple ulcers and peritonitis. Male germfree rats were found to be resistant to this effect of indomethacin, while female germfree rats developed very mild lesions. Germfree rats became sensitive again to such lesions when monocontaminated with E. coli. In such animals, however, the lesions were less severe than in conventional animals, presumably because more than one microorganism is necessary for the full syndrome to develop. These results suggest that microorganisms are necessary for the development of indomethacin-induced intestinal lesions. Secondary bile acids, absent in germfree animals, may also be necessary. The prostaglandin deficiency caused by indomethacin appears to weaken the resistance of the intestinal mucosa to microorganisms and/or their toxins. The latter may then penetrate the mucosa, damage the cells and produce ulcers and perforations. Since several prostaglandins also protect against indomethacin-induced lesions, the hypothesis is advanced that certain prostaglandins may protect the mucosa ("cytoprotection") by preventing the spread of microorganisms and/or their toxin through the intestinal wall.

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Crossref · 10.1016/0090-6980(77)90178-2

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  • Germ-free mice are less susceptible to intestinal lesions induced by NSAIDs and NSAID-induced enteropathy is transferable via microbiota.

    “Moreover, germ-free mice are less susceptible to intestinal lesions induced by NSAIDs and it has been documented that NSAID-induced enteropathy is transferable via microbiota[98,101,102].”

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Authors
Robert, A., & Asano, T.
Affiliations
University of Notre Dame (US)
Venue
Prostaglandins
Publisher
Elsevier BV
Published
1977-08
Volume
14
Issue
2
Pages
333-341
ISSN
0090-6980 (ISSN-L)
OpenAlex
W2059605635
Cited by
312
References
9
Citations by year
2026: 4 · 2025: 3 · 2024: 4 · 2023: 6 · 2022: 2 · 2021: 9 · 2020: 7 · 2019: 11 · 2018: 2 · 2017: 12 · 2016: 7 · 2015: 11 · 2014: 12 · 2013: 5 · 2012: 11
FWCI
2.60
Type
journal article
Language
en
Open access
closed
Locations
  • Prostaglandins (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology › Inflammatory mediators and NSAID effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
Keywords
germ-free rats, indomethacin, intestinal lesions, intestinal ulceration, peritonitis, Escherichia coli, secondary bile acids, prostaglandin deficiency, drug-induced intestinal injury, sex differences
MeSH terms
Animals, Escherichia coli, Female, Germ-Free Life, Indomethacin, Intestinal Diseases, Intestines, Male, Peritonitis, Prostaglandins E, Rats, Inbred Strains, Sex Factors, Ulcer, Rats

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