Differing actions of beta-(2-thienyl)-gamma-aminobutyric acid in central and peripheral preparations.

Abstract:

:In the guinea-pig isolated ileum, beta-(2-thienyl)-gamma-aminobutyric acid (BTG; 100-500 microM) reversibly and competitively (pA2 = 4.3 +/- 0.1) antagonised the baclofen-induced (5-100 microM) depression of cholinergic twitch contractions, but not that to adenosine or morphine. By contrast, in rat neocortical slice preparations, BTG (100-500 microM) acted as an agonist, abolishing the frequency and amplitude of spontaneous discharges, sensitive to 2-hydroxysaclofen (100-500 microM). BTG exhibits differential actions at GABAB receptors in brain and periphery.

journal_name

Eur J Pharmacol

authors

Ong J,Kerr DI,Berthelot P,Vaccher C,Flouquet N,Debaert M

doi

10.1016/0014-2999(92)90784-2

keywords:

subject

Has Abstract

pub_date

1992-10-06 00:00:00

pages

145-9

issue

1

eissn

0014-2999

issn

1879-0712

pii

0014-2999(92)90784-2

journal_volume

221

pub_type

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