Comparison of Changes in Glutamate Levels in the Nucleus Accumbens of the Rat Brain during Food Consumption in Conditions of Blockade of Dopamine D1 and D2 Receptors

被引：5
|
作者：
M. O. Mikhailova
机构：
[1] I. P. Pavlov Institute of Physiology,
[2] Russian Academy of Sciences,undefined
来源：
Neuroscience and Behavioral Physiology | 2003年 / 33卷 / 5期
关键词：
D1 D2 dopamine receptors; glutamate; nucleus accumbens; food-related behavior;
D O I：
10.1023/A:1023450931164
中图分类号：
学科分类号：
摘要：
The effects of blockade of D1 and D2 dopamine receptors in the nucleus accumbens on changes in glutamate levels in the intercellular space of this structure during food consumption were studied in Sprague–Dawley rats by intracerebral microdialysis combined with HPLC. These experiments showed that food consumption was accompanied by decreases in glutamate levels in the intercellular spaces of the nucleus accumbens. Blockade of D1 dopamine receptors with SCH-23390 (0.01 mM) produced no changes in the dynamics of glutamate release during food consumption. Food consumption in conditions of blockade of D2 dopamine receptors with raclopride (0.01 mM) induced increases in glutamate levels. These data suggest that glutamate levels during food consumption are controlled by the dopaminergic system of the nucleus accumbens, mediated by D2 but not D1 dopamine receptors.
引用
收藏
页码：431 / 434
页数：3
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