Neurosteroids: endogenous regulators of the GABA(A) receptor - PubMed (original) (raw)
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doi: 10.1038/nrn1703.
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- PMID: 15959466
- DOI: 10.1038/nrn1703
Review
Neurosteroids: endogenous regulators of the GABA(A) receptor
Delia Belelli et al. Nat Rev Neurosci. 2005 Jul.
Abstract
GABA(A) (gamma-aminobutyric acid type A) receptors mediate most of the 'fast' synaptic inhibition in the mammalian brain and are targeted by many clinically important drugs. Certain naturally occurring pregnane steroids can potently and specifically enhance GABA(A) receptor function in a nongenomic (direct) manner, and consequently have anxiolytic, analgesic, anticonvulsant, sedative, hypnotic and anaesthetic properties. These steroids not only act as remote endocrine messengers, but also can be synthesized in the brain, where they modify neuronal activity locally by modulating GABA(A) receptor function. Such 'neurosteroids' can influence mood and behaviour in various physiological and pathophysiological situations, and might contribute to the behavioural effects of psychoactive drugs.
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