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GABAa Receptor Channel Pharmacology (Johnston, 2006)

GABAa Receptor Channel Pharmacology (Johnston, 2006)

  1. Jatelka
    Originally published in Current Pharmaceutical Design

    Current pharmaceutical design, 2005, Vol.11(15), pp.1867-85

    Description: GABA(A) receptor channels are ubiquitous in the mammalian central nervous system mediating fast inhibitory neurotransmission by becoming permeant to chloride ions in response to GABA. The emphasis of this review is on the rich chemical diversity of ligands that influence GABA(A) receptor function. Such diversity provides many avenues for the design and development of new chemical entities acting on GABA(A) receptors. There is also a significant diversity of GABA(A) receptor subtypes composed of different protein subunits. The discovery of subtype specific agents is a major challenge in the continuing development of GABA(A) receptor pharmacology. Leads for the discovery of new chemical entities that influence GABA(A) receptors come from using recombinant GABA(A) receptors of known subunit composition as has been elegantly demonstrated by the refining of benzodiazepine actions with alpha1 subunit preferring agents showing sedative properties but not anxiolytic properties. The most recent advances in the therapeutic use of agents acting on GABA(A) receptors concern the promotion of sound sleep. Many herbal medicines are used to promote sleep and many of their active ingredients include flavonoids and terpenoids known to modulate GABA(A) receptor function.