SITE OF ORIGIN OF A HYPERGLYCEMIC SUBSTANCE LIBERATED INTO THE PANCREATO-DUODENAL BLOOD BY DESERPIDINE INJECTIONS1

Abstract
The injection of deserpidine into the pancreato-duodenal artery of normal dogs is followed by a prompt rise in blood sugar concentration. This hyperglycemia is not observed in previously de-pancreatized dogs. The results suggest that deserpidine causes the release of a hyperglycemic substance originating in the pancreas. The nature of this substance is unknown, although it appears to be different from the hyperglycemic material released by the injection of growth hormone.