[Effect of glucagon on intestinal microcirculation].

Examinations in rats were carried out for investigating the glucagon effect on the bowel microcirculation. After intramuscular injection of glucagon an increase of the pO2, a decrease of the pCO2, and a consistent pH value were observed in the mesenteric vein. The results showed that by means of glucagon arteriovenous shunts of the bowel mucosa were opened. This leads to the exclusion of the capillary network in the villi.