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[General mechanisms of regulation of the activity of the stomach and pancreas in peptic ulcer and chronic pancreatitis].

Altogether 25 patients with peptic ulcer and 26 patients with chronic pancreatitis were examined for gastric and pancreatic secretion. Histamine dihydrochloride (0.008-0.024 mg/kg) was employed to stimulate gastric secretion whereas cholecystokinin (2U/kg/h) and calcium gluconate (16 mg/kg) were used to stimulate pancreatic secretion. Lidocain (1.2 mg/kg), a blocker of Ca2+-channels, and lithium hydroxybutyrate (12 mg/kg), a blocker of phosphatidylinositol transformations, were employed for suppression of gastric and pancreatic secretion. The content of HCl, pepsinogen, fucose, cAMP and cGMP was measured in gastric juice, that of bicarbonates, amylase, lipase, trypsin, cAMP and cGMP in pancreatic juice. It has been shown that mechanisms dependent on cAMP and on extra- and intracellular Ca2+ are involved in the initiation and maintenance of gastric and pancreatic secretion. However, the contribution of those mechanisms is different as applied to the regulation of ions and enzymes, on the one hand, and to various enzymes, on the other.