Related Experiment Videos
[Vasopressin and colonic motility].
J C Schang1, F Angel, G Devroede
1Centre Hospitalier Universitaire de Sherbrooke, Québec, Canada.
Gastroenterologie Clinique Et Biologique
|December 1, 1988
Summary
Vasopressin (VS) significantly enhances colonic peristalsis and intestinal fluid transport. This study demonstrates VS
Area of Science:
- Gastroenterology
- Physiology
Background:
- Vasopressin (VS) is known to influence colonic motility.
- Understanding the precise mechanisms of VS-induced colonic stimulation is crucial for therapeutic applications.
Purpose of the Study:
- To investigate the mechanisms by which vasopressin (VS) stimulates colonic peristalsis.
- To quantify the propulsive and fluid transport effects of VS in the human colon.
Main Methods:
- Transit time of radioopaque markers was measured in healthy subjects after intramuscular VS injection.
- Electromyographic activity in the left colon was recorded using an intraluminal device.
- Ileostomy and colostomy fluid outflow was measured following VS administration.
Main Results:
- VS significantly increased the transit of markers through both the right and left colon compared to NaCl.
- Intramuscular VS injection led to a significant increase in propagating electrical spike bursts in the left colon.
- Fluid output from colostomies increased substantially after VS administration compared to NaCl.
Conclusions:
- Vasopressin (VS) demonstrably stimulates colonic peristalsis and enhances intestinal fluid transport.
- The findings support a role for vasopressin in modulating gastrointestinal motility.