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大鼠闭合性脑损伤后MAP-2的时序性表达
引用本文:梁新华,焦炎,高彩荣,付杰,王英元. 大鼠闭合性脑损伤后MAP-2的时序性表达[J]. 中国法医学杂志, 2011, 26(2): 113-115,173
作者姓名:梁新华  焦炎  高彩荣  付杰  王英元
作者单位:山西医科大学法医学院法医病理学教研室,山西,太原,030001
基金项目:山西省自然科学基金项目(2007011104); 山西医科大学青年基金项目(02200715)
摘    要:目的探讨大鼠闭合性颅脑损伤后脑组织微管相关蛋门-2(MAP-2)表达变化规律。方法建立大鼠闭合性颅脯挫伤模型,64只Wistar大鼠随机分为损伤后0.5h、6h、12h、ld、3d、7d、14d7个损伤组及对照组,每组8只。应用免疫组化和蛋h印记Western blot法及图像分析技术,检测脑挫伤后各设定时间点挫伤脯组织中MAP-2的变化。结果免疫纽化染色显示:对照组大鼠脑组织中可见MAP-2阳性表达;实验组伤后0.5h,挫伤灶及周同MAP-2阳性表达下降,伤后6h阳性表达降至最低,伤后12h,阳性表达逐渐增多,伤后14d,仍保持较高水平;蛋白印记结果与免疫组化结果一致。统计学分析显爪:MAP-2的表达各损伤组与对照组比较,差异均有统计学意义(P〈0.05),伤后12h、3d及14d与上…组比较,差异有统计学意义(P〈0.05)。结论大鼠脑挫伤后14d内,MAP-2存脑组织挫伤灶及其周同呈现先减少后逐渐增多的表达变化,可作为推断脑挫伤经过时间的参考指标之一。

关 键 词:法医病理学  脯挫伤  微管相关蛋门-2(MAP-2)  损伤时间

Expression of MAP-2 protein after brain contusion in rats
LIANG Xinhua,JIAO Yan,GAO Cairong,FU Jie,WANG Yingyuan. Expression of MAP-2 protein after brain contusion in rats[J]. Chinese Journal of Forensic Medicine, 2011, 26(2): 113-115,173
Authors:LIANG Xinhua  JIAO Yan  GAO Cairong  FU Jie  WANG Yingyuan
Affiliation:(LIANG Xinhua,JIAO Yan,GAO Cairong,FU Jie,WANG Yingyuan/Shanxi Medical University School of Forensic Medicine,Taiyuan 030001,China)
Abstract:Objective To investigate the expression of MAP-2 after brain contusion and its significance for estimating the age of brain contusion.Methods Sixty-four rats were randomly divided into eight groups:7 injury groups of 0.5h,6h,12h,1d,3d,7d,14d post-injury respectively and a control group.The expression of MAP-2 at different time was detected by immunohistochemical staining and Western blot.Results The positive staining of MAP-2 appeared in the control group,but declined gradually in 0.5h after contusion in th...
Keywords:forensic pathology  brain contusion  microtubule associated protein2(MAP-2)  injury time  
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