[Vagotomy and exocrine pancreatic secretion (author's transl)]

In dogs supplied with chronic pancreatic fistulas, there is no change of the basal exocrine secretion of volume three weeks after a bilateral truncular vagotomy. The normal initial reflex secretion during meal ingestion or glucose loading are abolished. On the whole, the secretory activity is reduced by about 50% after feeding. Secretions of volume and of enzyme protein are inhibited to the same extent, but that of bicarbonate is more strongly influenced. After vagotomy the inhibitory influence on all secretions of a rabidly produced hyperglycemia is reinforced. In pancreatic juice there is immunocreactive insulin activity (less than 1% fo the daily secreted amount). Insulin secreted in pancreatic juice after feeding is strongly reduced after vagotomy. This is the best reproducible proof of an influence on the exocrine pancreatic function of vagotomy.