title: Behavioral and Genetic Evidence for GIRK Channels in the CNS: Role in Physiology, Pathophysiology, and Drug Addiction.
abstract: G protein-coupled inwardly rectifying potassium (GIRK) channels are widely expressed throughout the brain and mediate the inhibitory effects of many neurotransmitters. As a result, these channels are important for normal CNS function and have also been implicated in Down syndrome, Parkinson's disease, psychiatric disorders, epilepsy, and drug addiction. Knockout mouse models have provided extensive insight into the significance of GIRK channels under these conditions. This review examines the behavioral and genetic evidence from animal models and genetic association studies in humans linking GIRK channels with CNS disorders. We further explore the possibility that subunit-selective modulators and other advanced research tools will be instrumental in establishing the role of individual GIRK subunits in drug addiction and other relevant CNS diseases and in potentially advancing treatment options for these disorders.
authors.affiliation: Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, Texas, USA. Electronic address: jodymayfield@austin.utexas.edu.
authors.forename: Jody
authors.initials: J
authors.lastname: Mayfield
authors.affiliation: Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, Texas, USA.
authors.forename: Yuri A
authors.initials: YA
authors.lastname: Blednov
authors.affiliation: Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, Texas, USA.
authors.forename: R Adron
authors.initials: RA
authors.lastname: Harris
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D051676:G Protein-Coupled Inwardly-Rectifying Potassium Channels / Q000235:genetics / Q000378:metabolism*; D006801:Humans; D051379:Mice; D018345:Mice, Knockout; D019966:Substance-Related Disorders / Q000235:genetics / Q000378:metabolism*
chemical_list: D051676:G Protein-Coupled Inwardly-Rectifying Potassium Channels
keywords: Anxiety; Cocaine; Depression; Down syndrome; Epilepsy; Ethanol; Genetic association studies; Knockout mice; Opioids; Parkinson's disease; Schizophrenia; Sedative–hypnotics