Cocaine, reward, movement and monoamine transporters

被引:0
作者
Uhl G.R. [1 ]
Hall F.S. [1 ]
Sora I. [1 ,2 ]
机构
[1] Molecular Neurobiology Branch, NIDA-IRP, NIH, Baltimore
[2] Psychopharmacology Laboratory, Tokyo Metropolitan Institute of Psychiatry, Tokyo
关键词
Aversion; Cocaine; Knockout mouse; Polygenic; Reinforcement; Reward;
D O I
10.1038/sj.mp.4000964
中图分类号
学科分类号
摘要
Recent evidence enriches our understanding of the molecular sites of action of cocaine reward and locomotor stimulation. Dopamine transporter blockade by cocaine appears a sufficient explanation for cocaine-induced locomotion. Variation in DAT appears to cause differences in locomotion without drug stimulation. However, previously-held views that DAT blockade was the sole site for cocaine reward have been replaced by a richer picture of multitransporter involvement with the rewarding and aversive actions of cocaine. These new insights, derived from studies of knockout mice with simultaneous deletions and/or blockade of multiple transporters, provide a novel model for the rewarding action of this heavily-abused substance and implicate multiple monoamine systems in cocaine's hedonic activities. © 2002 Nature Publishing Group All rights reserved.
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页码:21 / 26
页数:5
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