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Published on: May 2, 2018
Evidence for a transmissible factor in Crohn's disease
Gut
|May 1, 1977
Summary
Researchers injected rabbits with human bowel tissue, observing temporary Crohn's-like changes. Ampicillin prevented these changes, suggesting a transmissible factor in bowel tissue may contribute to Crohn's disease etiology.
Area of Science:
- Gastroenterology
- Microbiology
- Immunology
Background:
- Crohn's disease is a chronic inflammatory bowel disease with an unknown etiology.
- Previous research has explored infectious or transmissible agents in Crohn's disease.
Purpose of the Study:
- To investigate the potential role of a transmissible factor in the development of Crohn's-like changes in an animal model.
- To determine if antibiotic treatment could prevent these induced changes.
Main Methods:
- Rabbits' ileum were injected with homogenates from normal and Crohn's-affected human bowel tissue.
- Animals were observed for Crohn's-like changes at six and twelve months post-injection.
- Ampicillin was added to homogenates in a separate group to assess its preventative effect.
Main Results:
- Crohn's-like changes were observed in 11 of 27 rabbits after six months.
- These changes reverted to normal by twelve months.
- The addition of ampicillin completely prevented the development of Crohn's-like changes in all 12 rabbits.
Conclusions:
- The study provides evidence for a transmissible factor in human bowel tissue (both normal and Crohn's-affected) that may play a role in Crohn's disease etiology.
- Antibiotic intervention, specifically ampicillin, demonstrated a protective effect against the development of these induced changes.
- Further research is warranted to identify the specific transmissible agent and its mechanism of action.
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