[Effect of trypsinogen on the secretion of the gastric glands].

In chronic experiments on dogs, i. v. administration of trypsinogen (5 mg) raised enzyme--secreting activity of the gastric glands. An increase in pepsinogen secretion by the gastric glands was noted also in acute experiments early after ligation of pancreatic ducts when tryptic activity of the blood was rising. The activating effect of trypsinogen was also revealed on the rat stomach in vitro.