Striatal dopaminergic metabolism is increased by deep brain stimulation of the subthalamic nucleus in 6-hydroxydopamine lesioned rats

被引：73
作者：
Meissner, W
Reum, T
Paul, G
Harnack, D
Sohr, R
Morgenstern, R
Kupsch, A
机构：
[1] Humboldt Univ, Dept Neurol, D-13353 Berlin, Germany
[2] Humboldt Univ, Inst Pharmacol & Toxicol, D-13353 Berlin, Germany
来源：
NEUROSCIENCE LETTERS | 2001年 / 303卷 / 03期
关键词：
Parkinson's disease; deep brain stimulation; subthalamic nucleus; striatum; dopaminergic metabolism; microdialysis;
D O I：
10.1016/S0304-3940(01)01758-X
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
Deep brain stimulation of the subthalamic nucleus is an established therapeutic strategy for patients with Parkinson's disease. Although the exact mechanisms of action remain unknown, it is noteworthy that dopaminergic medication can be markedly reduced after neurostimulation of the subthalamic nucleus. Previously, we have shown that deep brain stimulation of the subthalamic nucleus is followed by an increase of striatal extracellular dopamine metabolites in naive rats. In the present study we examined the effects of deep brain stimulation on striatal monoamine metabolism in the intrastriatal g-hydroxydopamine rat model of Parkinson's disease. Deep brain stimulation of the subthalamic nucleus was followed by a delayed increase of extracellular 3,4-dihydroxyphenylacetic and homovanillic whereas dopamine levels were unchanged in stimulated rats and controls. Our results indicate that deep brain stimulation of the subthalamic nucleus affects significantly striatal dopaminergic metabolism in 6-hydroxydopamine lesioned rats. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.
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页码：165 / 168
页数：4
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