[Effect of antrectomy of total gastrectomy on calcium-induced gastric secretion and gastrin liberation in man].

These studies show that calcium stimulates gastric secretion and gastrin release in healthy individuals and duodenal ulcer patients. After antrectomy calcium still stimulates gastric secretion without affecting basal serum gastrin concentration. After total gastrectomy serum gastrin levels are decreased; hypercalcemia results in a small but definite release of gastrin from extraantral sites.