The dynamics of GABA signaling: Revelations from the circadian pacemaker in the suprachiasmatic nucleus.

ABSTRACT: Virtually every neuron within the suprachiasmatic nucleus (SCN) communicates via GABAergic signaling. The extracellular levels of GABA within the SCN are determined by a complex interaction of synthesis and transport, as well as synaptic and non-synaptic release. The response to GABA is mediated by GABA_A receptors that respond to both phasic and tonic GABA release and that can produce excitatory as well as inhibitory cellular responses. GABA also influences circadian control through the exclusively inhibitory effects of GABA_B receptors. Both GABA and neuropeptide signaling occur within the SCN, although the functional consequences of the interactions of these signals are not well understood. This review considers the role of GABA in the circadian pacemaker, in the mec

SUBMITTER: Albers HE 

PROVIDER: S-EPMC5225159 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature