Title : Central-type benzodiazepines and the octadecaneuropeptide modulate the effects of GABA on the release of alpha-melanocyte-stimulating hormone from frog neurointermediate lobe in vitro.

Pub. Date : 1989

PMID : 2552350






5 Functional Relationships(s)
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1 Central-type benzodiazepines and the octadecaneuropeptide modulate the effects of GABA on the release of alpha-melanocyte-stimulating hormone from frog neurointermediate lobe in vitro. gamma-Aminobutyric Acid proopiomelanocortin Homo sapiens
2 The GABAA agonist 3-amino-1 propane sulfonic acid mimicked the biphasic effect of GABA on alpha-melanocyte-stimulating hormone secretion: a brief stimulation followed by an inhibition of melanotropin secretion. gamma-Aminobutyric Acid proopiomelanocortin Homo sapiens
3 The GABAA antagonist SR 95531 (10(-4) M) inhibited both stimulation and inhibition of alpha-melanocyte-stimulating hormone release induced by GABA (10(-4) M). gamma-Aminobutyric Acid proopiomelanocortin Homo sapiens
4 GABA-induced stimulation of alpha-melanocyte-stimulating hormone release was inhibited by tetrodotoxin (10(-5) M), an Na+ -channel blocker, or nifedipine (10(-5) M), a voltage-dependent Ca2+ -channel blocker, suggesting that Na+ and Ca2+ ions are involved in the stimulatory phase of GABA action. gamma-Aminobutyric Acid proopiomelanocortin Homo sapiens
5 GABA-induced stimulation of alpha-melanocyte-stimulating hormone release was inhibited by tetrodotoxin (10(-5) M), an Na+ -channel blocker, or nifedipine (10(-5) M), a voltage-dependent Ca2+ -channel blocker, suggesting that Na+ and Ca2+ ions are involved in the stimulatory phase of GABA action. gamma-Aminobutyric Acid proopiomelanocortin Homo sapiens