STRIATAL SUBREGIONS ARE DIFFERENTIALLY VULNERABLE TO THE NEUROTOXIC EFFECTS OF METHAMPHETAMINE

被引:102
作者
EISCH, AJ [1 ]
GAFFNEY, M [1 ]
WEIHMULLER, FB [1 ]
ODELL, SJ [1 ]
MARSHALL, JF [1 ]
机构
[1] UNIV CALIF IRVINE, DEPT PSYCHOBIOL, IRVINE, CA 92717 USA
关键词
METHAMPHETAMINE; STRIATUM; NEUROTOXICITY; HETEROGENEITY; DOPAMINE; MAZINDOL; AUTORADIOGRAPHY; RAT;
D O I
10.1016/0006-8993(92)90201-J
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Methamphetamine (m-AMPH) or saline was repeatedly administered to rats. One week later, the caudate-putamen of the m-AMPH-treated rats revealed a decrease in both [H-3]mazindol-labeled dopamine uptake sites and tissue dopamine content. Moreover, the resulting pattern of decline in these measures was regionally heterogeneous. The ventral caudate-putamen displayed the greatest decrease in both [H-3]mazindol binding and dopamine content while the neighboring nucleus accumbens and the dorsal caudate-putamen remained relatively intact. These results indicate a regional difference in the susceptibility of striatal dopaminergic terminals to the neurotoxic effects of methamphetamine.
引用
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页码:321 / 326
页数:6
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