2982466

Spinal GABA receptors and central cardiovascular control.

Article date: 1985/2/25

PubMed ID: 2982466

Journal name: Brain research (ISSN: 0006-8993)

ABSTRACT

Spinal superfusion with the GABA agonist muscimol reduced arterial pressure and heart-rate in the rat. Subsequent spinal administration of the GABA antagonist bicuculline restored blood pressure and heart-rate to control levels. Bicuculline alone transiently elevated blood pressure and produced a longer lasting tachycardia. Intrathecal injection of muscimol reduced sympathetic nerve discharge along with arterial pressure and cardiac rate. These results provide evidence for spinal GABA receptors participating in central cardiovascular regulation.

This document is available from: http://directlinks.cc/files/muscimol/2982466.pdf

Author List: Gordon F J

Publication Types: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.

Substances mentioned in the article: GABA Antagonists; Receptors, GABA-A; Muscimol; bicuculline methiodide; Bicuculline;

Mesh terms: Animals; Bicuculline/analogs & derivatives; Blood Pressure/drug effects; Female; GABA Antagonists; Heart Rate/drug effects; Hemodynamics/drug effects; Muscimol/pharmacology; Rats; Receptors, GABA-A/drug effects; Spinal Cord/physiology;

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