期刊
BIOCHEMICAL PHARMACOLOGY
卷 87, 期 2, 页码 220-228出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bcp.2013.10.028
关键词
GHB receptor; GABA(A) receptor; GABA(B) knock-out mice; NCS-382
资金
- Carlsberg Foundation
- Lundbeck Foundation
- Drug Research Academy
- Lundbeck Foundation [R139-2012-12270] Funding Source: researchfish
gamma-Hydroxybutyric acid (GHB) is an endogenous compound in the mammalian brain with both low- and high-affinity receptor targets. GHB is used clinically in the treatment of symptoms of narcolepsy and alcoholism, but also illicitly abused as the recreational drug Fantasy. Major pharmacological effects of exogenous GHB are mediated by GABA subtype B (GABA(B)) receptors that bind GHB with low affinity. The existence of GHB high-affinity binding sites has been known for more than three decades, but the uncovering of their molecular identity has only recently begun. This has been prompted by the generation of molecular tools to selectively study high-affinity sites. These include both genetically modified GABA(B) knock-out mice and engineered selective GHB ligands. Recently, certain GABA subtype A (GABA(A)) receptor subtypes emerged as high-affinity GHB binding sites and potential physiological mediators of GHB effects. In this research update, a description of the various reported receptors for GHB is provided, including GABA(B) receptors, certain GABA(A) receptor subtypes and other reported GHB receptors. The main focus will thus be on the high-affinity binding targets for GHB and their potential functional roles in the mammalian brain. (C) 2013 Elsevier Inc. All rights reserved.
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