DIFFERENTIAL-EFFECTS OF ACUTE DOPAMINERGIC D1-RECEPTOR AND D2-RECEPTOR ANTAGONISTS ON PRONEUROTENSIN MESSENGER-RNA EXPRESSION IN RAT STRIATUM

被引：36
|
作者：
AUGOOD, SJ [1 ]
KIYAMA, H [1 ]
FAULL, RLM [1 ]
EMSON, PC [1 ]
机构：
[1] UNIV AUCKLAND,SCH MED,DEPT ANAT,AUCKLAND,NEW ZEALAND
来源：
MOLECULAR BRAIN RESEARCH | 1991年 / 9卷 / 04期
关键词：
NONRADIOACTIVE INSITU HYBRIDIZATION; STRIATUM; DOPAMINE ANTAGONIST; NEUROTENSIN;
D O I：
10.1016/0169-328X(91)90082-9
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
The effect of acute dopamine (DA) antagonist treatment on neuronal proneurotensin (NT) mRNA was investigated in the rat striatum using a technique of non-radioactive in situ hybridisation. Adult Wistar rats were given a single intraperitoneal injection of either raclopride (D2 antagonist), SCH 23390 (D1 antagonist) or its inactive isomer SCH 23388 and left to survive for 3 h. Their brains were rapidly removed and striatal sections processed for in situ hybridisation using an alkaline phosphatase (AP) labelled oligonucleotide specific for NT mRNA. Blockade of the DA D2 receptors by a single injection of raclopride resulted in an increase in the number of NT mRNA containing cells in the dorsal lateral rim of the striatum adjacent to the corpus callosum. In contrast, no such increase was observed following blockade of the DA D1 receptors with SCH 23390. These findings demonstrate that NT mRNA expression is differentially regulated in the adult rat striatum by selective D1 and D2 antagonists.
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收藏
页码：341 / 346
页数：6
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