神经药理学报 ›› 2016, Vol. 6 ›› Issue (2): 7-13.DOI: 10.3969/j.issn.2095-1396.2016.02.002

• 研究论文 • 上一篇    下一篇

大鼠脑缺血预处理对缺血再灌注神经功能的影响

魏孟琳,田莉,王小琴,邹玉安,薛茜   

  1. 1. 河北北方学院,张家口,075000,中国
    2. 河北北方学院附属第一医院神经内科,张家口,075000,中国
  • 出版日期:2016-04-26 发布日期:2016-05-10
  • 通讯作者: 邹玉安,主任医师,教授,硕士生导师;研究方向:缺血性脑血管病;E-mail:zya8857111@sohu.com
  • 作者简介:魏孟琳,女,硕士研究生;研究方向:缺血性血管病;E-mail:958329220@qq.com

The Inf luence of Ischemic Preconditioning on Ischemia Reperfusion Neural Function

WEI Meng-lin,TIAN Li,WANG Xiao-qin,ZOU Yu-an,XUE Qian   

  1. 1. Hebei North University,Zhangjiakou,075000,China
    2. Department of Neurology,the First Affiliated Hospital of Hebei North University,Zhangjiakou,075000,China
  • Online:2016-04-26 Published:2016-05-10
  • Contact: 邹玉安,主任医师,教授,硕士生导师;研究方向:缺血性脑血管病;E-mail:zya8857111@sohu.com
  • About author:魏孟琳,女,硕士研究生;研究方向:缺血性血管病;E-mail:958329220@qq.com

摘要: 目的:观察大鼠脑缺血预处理后胶质纤维酸性蛋白(glial bifilarly acidic protein,GFAP)、神经生长因子(nerve growth factor,NGF)、脑源性神经营养因子(brain derived neurotrophic factor,BDNF)的表达及对神经功能的影响。方法:将大鼠随机分为正常组、假手术组、脑缺血再灌注模型组(ischemia reperfusion group,IR)及脑缺血预处理组(ischemic preconditioning group,IP),于缺血后2 h 及再灌注后各个时间点进行神经功能缺损评分,比较各组脑梗死体积的大小。通过苏木精-伊红(hematoxylin-eosin,HE)染色观察梗死区脑组织细胞的形态学改变,利用免疫组织化学方法检测梗死区组织GFAP、NGF、BDNF 的表达变化。结果:与IR 组相比,IP组在术后的神经功能缺损评分明显降低,梗死体积明显减少(P<0.05),各个时间点的GFAP、NGF、BDNF 表达量明显上调(P<0.05),差异具有统计学意义。结论:缺血预处理减轻脑缺血再灌注损伤可能与神经再生及分化有关。

关键词: 脑缺血预处理, 脑缺血再灌注, 神经再生, 神经生长因子

Abstract: Objective:To explore the influence of ischemic preconditioning on GFAP,NGF,BDNF in rats infarct area after cerebral ischemia and reperfusion. Methods:The rats were randomly divided into normal group,sham-operated group,model group,ischemic preconditioning group. Neurological symptom score was evaluated. HE staining of the cells was used to observe the morphology changes in infarct area. Glial bifilarly acidic protein( GFAP),nerve growth factor (NGF) and brain derived neurotrophic factor (BDNF) were observed by immunohistochemical method in infarct area. Results:Compared with model group,neurological symptom score of ischemic preconditioning group was decreased and the result was significant (P<0.05). GFAP, NGF and BDNF were higher than the model group (P<0.05) at the time of the 22 h,48 h,72 h, 7 d and 14 d after cerebral ischemia. Conclusion:The ischemic preconditioning had protective effects on the pathological morphological changing,it may be associated with promoting the
neural stem cells regeneration.

Key words: ischemic preconditioning, cerebral ischemia reperfusion, nerve regeneration, nerve , growth factor

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