Lateral hypothalamic sites in cats for stimulation of gastric antral contractions

Clin Invest Med. 1987 May;10(3):140-4.

Abstract

Electrical stimulation through a bipolar electrode introduced into either the left or right lateral hypothalamus of anesthetized cats by means of a stereotaxic instrument elicited stimulus-bound phasic antral contractions in the anesthetized cat's stomach of much greater force than recorded under basal conditions. There was no change in gastric acid output. The response was abolished by bilateral cervical vagotomy or atropine. Stimulation during an intravenous infusion of pentagastrin did not alter the gastric acid secretory response. A hypothalamic vagal and cholinergic excitatory gastric antral motor pathway to the stomach has been demonstrated, independent of an acid secretory response.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Atropine / pharmacology
  • Cats
  • Electric Stimulation
  • Gastric Acid / metabolism
  • Hypothalamic Area, Lateral / drug effects
  • Hypothalamic Area, Lateral / physiology*
  • Infusions, Intravenous
  • Muscle Contraction / drug effects
  • Pentagastrin / administration & dosage
  • Pentagastrin / pharmacology
  • Pyloric Antrum / drug effects
  • Pyloric Antrum / physiology*
  • Vagotomy
  • Vagus Nerve / drug effects
  • Vagus Nerve / physiology

Substances

  • Atropine
  • Pentagastrin