中国临床解剖学杂志 ›› 2015, Vol. 33 ›› Issue (6): 677-680.doi: 10.13418/j.issn.1001-165x.2015.06.013

• 实验研究 • 上一篇    下一篇

左旋多巴治疗前后帕金森大鼠脑内γ-氨基丁酸 A受体的变化

王晓巍1, 崔宏福1, 姚素艳2, 刘建生1, 郑德宇1   

  1. 辽宁医学院     1. 解剖学教研室, 2. 病理生理学教研室,  辽宁   锦州    121000
  • 收稿日期:2015-04-15 出版日期:2015-11-25 发布日期:2015-12-18
  • 通讯作者: 郑德宇,教授,E-mail:857367505@qq.com
  • 作者简介:王晓巍(1977-),女,锦州人,硕士,副主任医师,主要研究方向:神经退行性病的实验冶疗,Tel:15541613453,E-mail:641384242@qq.com
  • 基金资助:

    辽宁省自然科学基金(2013022066,2013022048);辽宁省教育厅一般项目(L2013335)

The change of gamma aminobutyric acid A receptor on Parkinsons rat before and after L-dopa treatment

WANG Xiao-wei1,CUI Hong-fu1,YAO Su-yan2,  LIU Jian-sheng1,  ZHENG De-yu1   

  1. 1.Department of Anatomy, Liaoning Medical University,Jinzhou 121000, China;2. Department of Pathophysiology, Liaoning Medical University, Jinzhou 121000, China
  • Received:2015-04-15 Online:2015-11-25 Published:2015-12-18

摘要:

目的 探讨帕金森病治疗前后脑内皮质、黑质、纹状体部位γ-氨基丁酸A受体(gamma aminobutyric acid A receptor, GABAAR) 的分布变化规律。  方法 首先制备PD大鼠模型,经检测成模后,随机分为对照组和治疗组,分别给予生理盐水和左旋多巴甲酯+苄丝肼治疗4周,治疗后经行为学检测,选择成功的治疗后的PD大鼠,于治疗后4、8、12周分别留取大鼠脑皮质、黑质和纹状体部位的标本,进行免疫组化检测,对比PD大鼠治疗前后脑内上述部位GABAAR的分布、表达情况变化。  结果 治疗后 4、8、12周的免疫组化检测结果经统计学分析,脑内黑质和皮质部位的GABAAR阳性表达的细胞治疗后比治疗前减少。而纹状体部位的GABAAR阳性表达的细胞数量无明显变化。  结论 (1)左旋多巴甲酯+苄丝肼治疗PD大鼠,可以使症状改善。(2)PD大鼠治疗前后脑内不同部位GABAAR的变化不同。

关键词: 帕金森病, &gamma, -氨基丁酸, &gamma, -氨基丁酸A受体

Abstract:

Objective To investigate varying pattern of distribution of gamma aminobutyric acid A receptor (GABAAR) before and after treatment in the brain cortex, striatum, substantianigra on Parkinson's disease.   Methodes First, the rat model of PD was made, after testing, were randomly divided into treatment group and control group. They were given normal saline and L-dopa methyl ester + Benserazide for 4 weeks. After treatment the behavioral tests were performed. Cerebral cortex, striatum, substantianigra were harvested from rats after treatment of 4, 8, 12 weeks respectively. By immunohistochemistry, the changes in distribution and expression of  content of GABAAR in the brain were compared before and after treatment. Results After treatment of 4, 8, 12 weeks immunohistochemical results was subjected through statistical analysis, which showed the content of the brain substantianigra and cortex GABAAR was decreased than before treatment, While the number of striatum showed no changes of GABAAR. Conclusion (1) With treatment of L-dopa methyl ester + Benserazide, the PD symptoms can be improve. (2) The changes of GABAAR are different on different parts of PD rats before and after treatment.

Key words: Parkinson's disease, Gamma aminobutyric acid, Gamma aminobutyric acid A receptor