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Issue:
NEUROBIOLOGY OF PSYCHOSTIMULANT ADDICTION
Author(s):
SHI Weixing
Pages:
168
-
172
Year:
2006
Issue:
3
Journal:
CHINESE JOURNAL OF DRUG DEPENDENCE
Keyword:
苯丙胺类精神兴奋剂
;
多巴胺转运体
;
前额叶皮层
;
多巴胺能神经元
;
放电模式
;
动作电位依赖性释放
;
Abstract:
多巴胺转运体一直被认为是苯丙胺类精神兴奋剂增强多巴胺突触传递的主要分子靶点.本综述结合本实验室及其他实验室的结果,讨论说明这类毒品还可以通过改变多巴胺能神经元的放电模式,来影响动作电位依赖性的多巴胺释放.证据提示,在兴奋剂强化效应中,动作电位依赖性的多巴胺释放比多巴胺转运体所介导的多巴胺浓度的升高更为重要.这很有可能是因为前者在时程上具有特定的变化模式,携带着来自不同脑区、经多巴胺能神经元整合、处理过的突触信息.
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