Extrasynaptic GABAA receptors in the crosshairs of hormones and ethanol.

Abstract:

:Gamma-aminobutyric acid (GABA) is the main chemical inhibitory neurotransmitter in the brain. In the central nervous system (CNS) it acts on two distinct types of receptor: an ion channel, i.e., an "ionotropic" receptor permeable to Cl- and HCO3- (GABAA receptors) and a G-protein coupled "metabotropic" receptor that is linked to various effector mechanisms (GABAB receptors). This review will summarize novel developments in the physiology and pharmacology of GABAA receptors (GABAARs), specifically those found outside synapses. The focus will be on a particular combination of GABAAR subunits sensitive to ovarian and adrenal cortical steroid hormone metabolites that are synthesized in the brain (neurosteroids) and to sobriety impairing concentrations of ethanol. These receptors may be the final common pathway for interactions between ethanol and ovarian and stress-related neurosteroids.

journal_name

Neurochem Int

authors

Mody I

doi

10.1016/j.neuint.2007.07.010

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

60-4

issue

1-2

eissn

0197-0186

issn

1872-9754

pii

S0197-0186(07)00204-5

journal_volume

52

pub_type

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