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[Inflammatory bowel disease--do microorganisms play a role?]

Sara Elsøe Nielsen1, Ole Haagen Nielsen, Ben Vainer

  • 1Medicinsk-gastroenterologisk afdeling C, patologisk-anatomisk institut, Amtssygehuset i Herlev. sara@mdb.ku.dk

Ugeskrift for Laeger
|January 30, 2003
PubMed

Insights

Microorganisms may play a role in inflammatory bowel diseases (IBD), including Crohn's disease and ulcerative colitis. Research suggests IBD inflammation might stem from an immune system imbalance and lost tolerance to gut microbes.

Area of Science:

  • Gastroenterology
  • Microbiology
  • Immunology

Context:

  • Inflammatory bowel diseases (IBD), such as Crohn's disease and ulcerative colitis, are chronic gastrointestinal disorders.
  • The precise etiology of IBD remains incompletely understood, with microbial involvement being a significant area of investigation.

Purpose:

  • To review the potential pathogenic roles of various microorganisms in the development and progression of IBD.
  • To explore the involvement of normal intestinal flora and specific pathogens in IBD pathogenesis.
  • To discuss findings from experimental animal models of colitis.

Summary:

  • This review examines the evidence linking specific microorganisms (e.g., Mycobacterium paratuberculosis, viruses, Listeria monocytogenes) and the gut microbiome to IBD.
  • While current results are inconclusive, a hypothesis is proposed: IBD inflammation may result from an immune imbalance leading to a loss of tolerance to commensal gut microflora.
  • Studies on experimental animal colitis models are also considered.

Impact:

  • Highlights the need for further research into the complex interplay between the host immune system and the gut microbiota in IBD.
  • Suggests potential avenues for future therapeutic strategies targeting microbial dysbiosis or immune tolerance in IBD patients.
  • Provides a comprehensive overview for researchers and clinicians investigating the microbial basis of inflammatory bowel diseases.

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