...
首页> 外文期刊>The European Journal of Neuroscience >Neuronal and behavioural abnormalities in striatal function in DARPP-32-mutant mice.
【24h】

Neuronal and behavioural abnormalities in striatal function in DARPP-32-mutant mice.

机译:DARPP-32突变小鼠纹状体功能的神经元和行为异常。

获取原文
获取原文并翻译 | 示例
           

摘要

We investigated the role of the protein phosphatase inhibitor, dopamine- and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32), in the expression of striatal neuropeptides and in biochemical and behavioural responses to repeated cocaine administration, using DARPP-32 knock-out mice. The striatum of DARPP-32-mutant mice showed heightened substance-P-like immunoreactivity, but normal levels of other neuropeptides. Repeated cocaine administration increased levels of DeltaFosB, a Fos family transcription factor, in the striatum of wild-type mice, and this increase was abolished in DARPP-32-mutant mice. Cocaine (20 mg/kg) acutely induced the same level of locomotor activity in the mutant and wild-type mice, but the mutants showed a higher rate of locomotor sensitization to repeated cocaine exposures. These data show that DARPP-32 is involved in regulating substance P expression in the striatonigral pathway, and in biochemical and behavioural plasticity with chronic administration of cocaine.
机译:我们调查了蛋白质磷酸酶抑制剂,多巴胺和cAMP调节的32 kDa磷酸化蛋白(DARPP-32)在纹状体神经肽的表达以及重复使用可卡因的生化和行为反应中的作用,使用DARPP-32敲除老鼠。 DARPP-32突变小鼠的纹状体显示出增强的P物质样免疫反应性,但其他神经肽水平正常。重复给予可卡因可增加野生型小鼠纹状体中fos家族转录因子DeltaFosB的水平,而在DARPP-32突变型小鼠中则取消了这种增加。可卡因(20 mg / kg)在突变型和野生型小鼠中急性诱导了相同水平的运动能力,但突变体显示出对重复可卡因暴露的运动致敏率更高。这些数据表明,DARPP-32与可卡因的慢性给药有关,调节纹状体-黑质途径中的P物质表达,并参与生化和行为可塑性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号