Group II, but not group I, metabotropic glutamate receptors in the rat nucleus accumbens contribute to amphetamine-induced locomotion.
Group II, but not group I, metabotropic glutamate receptors in the rat nucleus accumbens contribute to amphetamine-induced locomotion.
复制标题
大鼠伏隔核中的第 II 组(但不是第 I 组)代谢型谷氨酸受体有助于安非他明诱导的运动。
DOI:
10.1016/s0028-3908(99)00252-x
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发表时间:
2000
影响因子:
4.7
通讯作者:
Vezina,P
中科院分区:
文献类型:
--
作者:
Kim,JH;Beeler,JA;Vezina,P
Recently, it was reported that blocking metabotropic glutamate receptors (mGluRs) in the rat nucleus accumbens (NAcc) prevents the generation of locomotion by amphetamine (AMPH) in this site. In these studies, the non-selective group I/group II mGluR antagonist (R,S)-α-methyl-4-carboxyphenylglycine [(R,S)-MCPG] was used. The present study used more selective receptor antagonists to examine the specific contribution of group I and group II mGluRs to this effect. When co-injected bilaterally with AMPH into the NAcc, the group II selective mGluR antagonist (2S)-α-ethylglutamic acid [EGLU; 0.5–5.0 nmole/side] dose-dependently blocked the locomotion and rearing produced by AMPH. Equimolar concentrations of the group I selective antagonist (R,S)-1-aminoindan-1,5-dicarboxylic acid [AIDA; 0.5–5.0 nmole/side] were without effect. As previously reported for (R,S)-MCPG, neither of these receptor antagonists produced locomotor effects when injected alone in these concentrations into the NAcc. These results suggest that group II, but not group I, mGluRs in the rat NAcc contribute importantly to the ability of AMPH to produce locomotor activation.