Circadian modulation of GABA function in the rat suprachiasmatic nucleus: excitatory effects during the night phase.

Abstract

Gramicidin-perforated patch-clamp recordings were made from slices of the suprachiasmatic nucleus (SCN) of adult rats to characterize the role of gamma-amino butyric acid (GABA) in the circadian timing system. During the day, activation of GABA(A) receptors hyperpolarized the membrane of SCN neurons. During the night, however, activation of GABA(A… (More)

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