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Colchicine induces enhanced intestinal permeability in the rat
A Fradkin1, J Yahav, A Diver-Haber
1Paediatric Gastrointestinal Unit, Chaim Sheba Medical Center, Tel Hashomer, Israel.
Acta Physiologica Scandinavica
|March 1, 1995
Summary
Colchicine significantly increases intestinal permeability in rats, as measured by elevated lactulose excretion. This effect on gut barrier function appears rapidly and persists throughout the study period.
Area of Science:
- Gastroenterology
- Pharmacology
- Physiology
Background:
- Intestinal permeability is crucial for gut health.
- Colchicine is a medication with known effects on cellular processes.
- Understanding colchicine's impact on the gut barrier is important.
Purpose of the Study:
- To investigate the effect of colchicine on intestinal permeability in a rat model.
- To determine the time course and stability of colchicine-induced changes in gut barrier function.
Main Methods:
- Rats were administered colchicine in drinking water for up to 23 days.
- Intestinal permeability was assessed using the lactulose/mannitol method.
- Urinary excretion of lactulose and mannitol was measured at various time points.
Main Results:
- Colchicine administration led to a significant increase in urinary lactulose excretion, indicating enhanced intestinal permeability.
- Increased lactulose permeability was observed as early as day 2 and remained stable.
- Urinary mannitol excretion showed no significant changes.
Conclusions:
- Colchicine treatment increases intestinal tight junction permeability in rats.
- The mechanism by which colchicine affects gut barrier function requires further investigation.