医学研究与教育 ›› 2015, Vol. 32 ›› Issue (6): 11-15.DOI: 10.3969/j.issn.1674-490X.2015.06.002

• 基础研究 • 上一篇    下一篇

丁苯酞预处理对缺血再灌注大脑神经元及血脑屏障的影响

严鹏,赵淑敏   

  1. 承德医学院基础医学院,河北 承德 067000
  • 出版日期:2015-12-25 发布日期:2015-12-25
  • 通讯作者: 赵淑敏(1954—),女,河北唐山人,教授,硕士生导师,主要从事缺血性脑血管损伤修复的研究。 E-mail: zhaoshumin-2008@163.com
  • 作者简介:闫鹏(1987—),男,河北承德人,实验师,主要从事脑血管损伤修复的研究。E-mail: 415834627qq.com
  • 基金资助:
    河北省教育厅教育科学规划项目(JYGH2010048)

Effects on ultrastructure of neuron and blood brain barrier in ischemia reperfusion by pretreatment with 3-n-butylphthalide in rats

YAN Peng, ZHAO Shumin   

  1. School of Basic Medical Science of Chengde Medical College, Chengde 067000, China
  • Online:2015-12-25 Published:2015-12-25

摘要: 目的 探讨丁苯酞(NBP)对缺血再灌注大脑神经元和血脑屏障影响。方法 SD 大鼠 30 只随机分为假手术组、缺血 再灌注组、NBP 20 mg/kg 组、NBP 40 mg/kg 组、NBP 80 mg/kg 组,术前 1 周灌胃给不同剂量 NBP,共 7 d。线栓法制作大 脑中动脉缺血再灌注模型,术后进行神经行为学评分,检测大脑组织中伊文思蓝的含量和血脑屏障通透性变化,透射电 镜观察缺血区脑组织神经元和血脑屏障的超微结构变化。结果 与缺血再灌注组比较,NBP 各组神经功能缺损评分明显降 低(P<0.01,P<0.05),脑组织中伊文思蓝的含量减少(P<0.01,P<0.05),血脑屏障的通透性降低,神经元和血脑屏障 超微结构损伤明显减轻。结论 丁苯酞预处理对脑缺血再灌注损伤神经元和血脑屏障具有预防保护作用

关键词: 丁苯酞, 预处理, 神经元, 血脑屏障, 超微结构, 通透性

Abstract: ObjectiveTo observe the effects on ultrastructure of neuron and blood brain barrier (BBB) in ischemia reperfusion by pretreatment with 3-n-butylphthalide in rats. Methods The 30 SD rats were divided randomly into five groups: sham group, ischemia reperfusion group, NBP different dose groups (NBP 20 mg/kg group, NBP 40 mg/kg group, NBP 80 mg/kg group), NBP groups were respectively administrated with NBP 20, 40, 80 mg/(kg·d) one week, the ischemia reperfusion models were made, and then evaluated the neurological deficit score of the rats, the permeability of blood brain barrier were detected by content of Evans Blue (EB) in the brain tissue of ischemic reperfusion. At the same time, The ultrastructure of neuron and blood brain barrier were observed in brain tissue with electron microscope. Results The results showed that the neurological deficit scores and content of Evans Blue (EB) in NBP groups were obviously decreased compared with ischemia reperfusion group(P<0.01, P<0.05) and the ultrastructural injury of neuron and blood brain barrier of the brain tissue were improved with ischemic reperfusion in rats. Conclusion 3-n-butylphthalide pretreatment can exert protective functions on ultrastructure of neuron and blood brain barrier in the cerebral ischemia reperfusion injury.

Key words: 3-n-butylphthalide(NBP), pretreatment, neuron, blood brain barrier(BBB), ultrastructure, permeability

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