Abstract
The gastric secretion of acid was examined 30 minutes basally (BAO) and in response to stepwise increasing doses of pentagastrin in subjects with (n = 51) and without (n = 40) peptic ulcer disease. None of them showed basal anacidity. Before insertion of the gastric tube, blood was taken for radioimmunological determination of the serum gastrin concentration (SG). A significant positive correlation was found between SG and BAO in the subjects without ulcer. This was mainly due to a close correlation in 20 healthy young volunteers. When BAO and SG was expressed as proportions of calculated maximal acid response (Vmax) and half maximal dose of pentagastrin (Km), respectively, the positive correlation between SG and BAO was improved and reached significance also in the individuals with peptic ulcer disease. The findings suggest that the serum concentration of gastrin plays a role in the basal gastric secretion.
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