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Effect of somatostatin on bethanechol-stimulated gastric acid secretion and gastric antral motility in dogs with gastric fistula.

Abstract
The purpose of the present study was to evaluate the effect of somatostatin on gastric acid secretion and gastric antral motility in conscious dogs with gastric fistula. Infusion of bethanechol stimulated dose-dependently acid secretion, whereas the frequency and strength of antral motility was maintained at a high level. Somatostatin inhibited dose-dependently the stimulated acid secretion, whereas the effect on antral motility was more complex, acting especially on the amplitude of the contractions. The effects of somatostatin were not altered by using alpha-adrenergic, beta-adrenergic, dopaminergic, and serotonergic blocking drugs. The dose-response kinetics with four doses of bethanechol with and without somatostatin showed inhibition of a non-competitive type for gastric acid secretion and of a competitive type for antral motility with regard to amplitude.
AuthorsK Bech, L Ladegaard, D Andersen
JournalScandinavian journal of gastroenterology (Scand J Gastroenterol) Vol. 20 Issue 4 Pg. 470-7 (May 1985) ISSN: 0036-5521 [Print] NORWAY
PMID2862691 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Adrenergic alpha-Antagonists
  • Adrenergic beta-Antagonists
  • Bethanechol Compounds
  • Piperidines
  • Receptors, Dopamine
  • Receptors, Serotonin
  • Somatostatin
  • Domperidone
  • Ketanserin
  • Propranolol
Topics
  • Adrenergic alpha-Antagonists (pharmacology)
  • Adrenergic beta-Antagonists (pharmacology)
  • Animals
  • Bethanechol Compounds (pharmacology)
  • Dogs
  • Domperidone (pharmacology)
  • Dose-Response Relationship, Drug
  • Female
  • Gastric Acid (secretion)
  • Gastric Fistula (physiopathology)
  • Gastrointestinal Motility (drug effects)
  • Ketanserin
  • Male
  • Piperidines (pharmacology)
  • Propranolol (pharmacology)
  • Pyloric Antrum (drug effects)
  • Receptors, Dopamine (drug effects)
  • Receptors, Serotonin (drug effects)
  • Somatostatin (pharmacology)

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