Increased plasma gastrin levels in connection with inhibition of gastric acid responses to sham feeding following bulbar perfusion with acid in dogs
Nilsson, G.
Scandinavian Journal of Gastroenterology 10(3): 273-277
1975
ISSN/ISBN: 0036-5521 PMID: 1138329 Document Number: 84293
Dogs were provided with oesophageal fistulae, fully innervated pouches of the fundic stomach and the duodenal bulb, and a gastric cannula. Gastric secretion was stimulated by sham feeding for 10 min. The bulbar pouches were perfused either with 0.9 per cent NaCl or with 0.1 N HCl. Plasma gastrin concentrations were determined by radioimmunoassay. Bulbar acidification effectively inhibited gastric acid secretion. Plasma gastrin responses were not suppressed. Instead, plasma gastrin concentrations were higher than in controls. The results show that the bulbar mechanism does not inhibit gastric acid secretion by reducing gastrin release.