1979•Scandinavian Journal of GastroenterologyRequires access
Fat-Induced Jejunal Inhibition of Gastric Acid Secretion and Release of Pancreatic Glucagon, Enteroglucagon, Gastric Inhibitory Polypeptide, and Vasoactive Intestinal Polypeptide in Man
John Christiansen, Annelise Bech, J. Fahrenkrug, Jens J. Holst, Katrine Meyer Lauritsen, Alison Moody, Ove B. Schaffalitzky de Muckadell
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Abstract
The effect of intrajejunal (i.j.) infusion of fat on meal-stimulated gastric acid secretion and release of pancreatic glucagon (PG), enteroglucagon (EG), gastric inhibitory polypeptide (GIP), and vasoactive intestinal polypeptide (VIP) was studied in seven healthy volunteers. I.j. fat markedly inhibited meal-stimulated acid secretion as compared to a control study with i.j. saline infusion. The acid inhibition was accompanied by augmental plasma concentrations of EG, GIP, and VIP but not of PG, suggesting that EG, GIP, and VIP may be among mediators of fat-induced jejunal inhibition of acid secretion. Concentration-time relationship makes it unlikely that the observed inhibition could be ascribed to any single peptide studied.