Neurotensin Inhibits Meal-Stimulated Gastric Acid Secretion in Man

Abstract
The effect of physiological doses of exogenous neurotensin on meal-stimulated gastric acid secretion and serum gastrin concentration was investigated in 6 healthy subjects. Acid secretion was reduced by 32% during i.v. infusion of neurotensin, the plasma neurotensin concentration being within physiological range. Serum gastrin concentration was unchanged during infusion of neurotensin. Neurotensin probably participates in the regulation of gastric acid secretion, and may play a role in the intestinal phase of gastric acid secretion in man.