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Unprepared human colon does not discriminate between solids and liquids
M Proano1, M Camilleri, S F Phillips
1Gastroenterology Research Unit, Mayo Clinic, Rochester, Minnesota 55905.
The American Journal of Physiology
|January 1, 1991
Summary
This study found no significant difference in how solids and small liquid volumes move through the unprepared human colon. Colonic transit times for both forms were similar when delivered together to the ascending colon.
Area of Science:
- Gastroenterology
- Colonic Physiology
Background:
- Understanding colonic transit is crucial for diagnosing and managing gastrointestinal disorders.
- Previous research has not definitively compared solid and liquid transit in the unprepared human colon.
Purpose of the Study:
- To compare the transit times of solid and liquid substances through the unprepared human colon.
- To investigate if the form of ingested material affects colonic transit.
Main Methods:
- Five healthy male volunteers participated.
- Solid (111In-labeled pellets) and liquid (99mTc-diethylenetriaminepentaacetic acid) tracers were simultaneously delivered to the cecum.
- Segmental colonic transit was assessed using dual gamma cameras.
Main Results:
- No significant difference was observed in emptying times from the ascending colon between solid and liquid tracers.
- Regional colonic transit and stool output at 12 and 24 hours showed no significant differences between solids and liquids.
- P values greater than 0.05 indicated no statistically significant variations.
Conclusions:
- Solid and liquid transit through the unprepared human colon are comparable when delivered together to the ascending colon.
- The form of the material (solid vs. small liquid volume) does not appear to significantly alter colonic transit dynamics in this context.