GABAA receptor modulation of the rewarding and aversive effects of ethanol

被引:83
作者
Chester, JA
Cunningham, CL
机构
[1] Oregon Hlth & Sci Univ, Dept Behav Neurosci, Portland, OR 97201 USA
[2] Oregon Hlth & Sci Univ, Portland Alcohol Res Ctr, Portland, OR 97201 USA
关键词
alcohol; aversion; conditioning; reward; self-administration;
D O I
10.1016/S0741-8329(02)00199-4
中图分类号
R194 [卫生标准、卫生检查、医药管理];
学科分类号
摘要
Ethanol has been shown to exert many of its biochemical and behavioral effects through an interaction with the gamma-aminobutyric acid (GABA) receptor system. This review focuses on a subset of studies that has used self-administration, as well as place and taste conditioning, procedures to investigate a role for the GABA(A) receptor system in modulating the rewarding and aversive effects of ethanol. Potential advantages and disadvantages of each procedure are also discussed. A significant amount of evidence supports the suggestion that GABAA receptors are important modulators of the motivational effects of ethanol, although most of the findings have been obtained from studies examining oral ethanol self-administration. Relatively fewer studies have investigated ethanol place and taste conditioning. All self-administration studies reviewed used rats, whereas most conditioning studies used mice. Results of these studies show that GABAA antagonists and inverse agonists reduce ethanol self-administration under limited-access conditions, The effect of GABAA agonists on ethanol self-administration is less clear due to their bidirectional effects. GABAA receptor antagonists have been shown to increase ethanol-induced conditioned place preference and conditioned taste aversion in mice and decrease ethanol-induced conditioned taste aversion in rats. Issues related to interpretation and integration of these findings across models and species are considered. The integration of data from self-administration and conditioning procedures is necessary to define the role of GABAA receptors in modulating the rewarding and aversive effects of ethanol and may lead to the development of pharmacotherapies that target GABA(A) receptors to treat alcoholism in human beings. (C) 2002 Elsevier Science Inc. All rights reserved.
引用
收藏
页码:131 / 143
页数:13
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