Pre- and postsynaptic actions of GABA on the release of hypothalamic gonadotropin-releasing hormone (GnRH).

Abstract

The role of gamma-aminobutyric acid (GABA) in the regulation of gonadotropin hormone-releasing hormone (GnRH) release was studied using rat hypothalamic slices in vitro. Perifusion with GABA (10(-8)-10(-4) M) caused a dose-dependent increase in GnRH release. The GABAA receptor agonist isoguvacine (10(-5) M) also stimulated GnRH release, whereas the GABAB… (More)

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