法医学杂志 ›› 2010, Vol. 26 ›› Issue (4): 246-249.DOI: 10.3969/j.issn.1004-5619.2010.04.002

• 论著 • 上一篇    下一篇

大鼠脑挫伤后微管相关蛋白2 mRNA表达变化

梁新华,付  杰,孙俊红,焦  炎,王英元   

  1. (山西医科大学 法医学院法医病理教研室,山西 太原 030001)
  • 发布日期:2010-08-25 出版日期:2010-08-28
  • 通讯作者: 通信作者:王英元,男,教授,博士研究生导师,主要从事法医病理学的教学、科研及检案工作;E-mail:wyy580218@163.com
  • 作者简介:梁新华(1978—),男,内蒙古呼伦贝尔人,讲师,博士研究生,主要从事法医病理学的教学、科研及检案工作;E-mail:liangxhlemon@163.com
  • 基金资助:

    山西省自然科学基金项目(2007011104)

Expression of Microtubule Associated Protein-2 mRNA after Cerebral Contusion

LIANG XIN-HUA, FU JIE, SUN JUN-HONG, JIAO YAN, WANG YING-YUAN   

  1. (Department of Forensic Pathology, School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China)
  • Online:2010-08-25 Published:2010-08-28

摘要: 目的 观察大鼠脑挫伤后脑组织中微管相关蛋白2(microtubule associated protein 2,MAP-2)mRNA表达变化,探讨其时序性变化与脑损伤时间的相关性。 方法 参照Feeney法建立大鼠右顶叶脑挫伤模型,应用实时定量PCR技术检测挫伤区脑组织MAP-2 mRNA的表达情况。 结果 对照组大鼠脑组织内有低水平的MAP-2 mRNA表达;伤后1 h,挫伤灶脑组织MAP-2 mRNA表达较正常对照组下降,伤后6 h降至最低;12 h~14 d逐渐增高,至14 d时仍维持在高表达水平。 结论 脑挫伤后MAP-2 mRNA的表达规律,在法医学实践中可以作为脑损伤时间推断的新方法之一。

关键词: 法医病理学, 脑损伤, 微管相关蛋白质类, 大鼠

Abstract: Objective To explore the mRNA expression of microtubule associated protein-2(MAP-2) after cerebral contusion, and to investigate its relationship with post-injury interval in a rat model of cerebral contusion. Methods Based on Feeney’s model of cerebral contusion, the time-dependent changes of MAP-2 mRNA were detected by real-time PCR method in different groups. Results MAP-2 mRNA showed a lower expression in the brain of the control group. The expression of MAP-2 mRNA decreased 1 h post-injury, and reached the lowest level at 6 h, and the expression of MAP-2 mRNA gradually increased in the focus of the cerebral contusion from 12 h to 14 d after contusion, which kept a high level up to 14 d post-injury. Conclusion The time-dependent changes of MAP-2 mRNA expression may be a new method for estimating the wound age of cerebral contusion in forensic practice.

Key words: forensic pathology, brain injuries, microtubule-associated proteins, rats

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