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  • Title: Terbutaline, a beta 2-adrenoreceptor agonist, inhibits gastric acid secretion and stimulates release of peptide YY and gastric inhibitory polypeptide in dogs.
    Author: Kogire M, Izukura M, Gomez G, Uchida T, Greeley GH, Thompson JC.
    Journal: Dig Dis Sci; 1990 Apr; 35(4):453-7. PubMed ID: 2156661.
    Abstract:
    Terbutaline, a beta 2-adrenoreceptor agonist, inhibits pentagastrin-stimulated gastric acid secretion. The purpose of this study was to examine the effect of intravenous administration of terbutaline on plasma levels of peptide YY (PYY) and gastric inhibitory polypeptide (GIP), both of which are known to inhibit gastric acid secretion. Seven dogs with gastric and duodenal fistulas were given pentagastrin (1 microgram/kg/hr) intravenously for 150 min in combination with terbutaline (10 or 20 micrograms/kg/hr) or saline during the 60- to 120-min period of pentagastrin infusion. Pentagastrin-stimulated gastric acid secretion was significantly (P less than 0.05) inhibited by intravenous administration of terbutaline. Terbutaline significantly increased plasma PYY levels, 24% in response to terbutaline at 10 micrograms/kg/hr, and 59% at 20 micrograms/kg/hr. Plasma GIP levels were also increased significantly, 24% with terbutaline at 10 micrograms/kg/hr, and 39% at 20 micrograms/kg/hr. Our data suggest that terbutaline-induced inhibition of pentagastrin-stimulated gastric acid secretion is mediated, at least in part, by the release of PYY and GIP. The adrenergic nervous system may influence gastric acid secretion through the release of PYY and GIP.
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