神经药理学报 ›› 2017, Vol. 7 ›› Issue (4): 1-7.DOI: 10.3969/j.issn.2095-1396.2017.04.001

• 研究论文 •    下一篇

脉络宁对MCAO 大鼠的神经保护作用及其抗氧化机制研究

杨杰,刘富甲,田子夏,王乐乐,谢欣梅,庞晓斌   

  1. 河南大学药学院药物研究所,开封,475004,中国
  • 出版日期:2017-08-26 发布日期:2017-12-01
  • 通讯作者: 谢欣梅,女,副教授;研究方向:神经药理学;Tel/Fax:+86-0371-23880680,E-mail:xxm0475@163.com 庞晓斌,男,教授,博士生导师;研究方向:神经药理学;Tel/Fax:+86-0371-23880680,E-mail:hndxpxb@163.com
  • 作者简介:杨杰,女,硕士研究生;研究方向:神经药理学;Tel:+86-0371-23880680,E-mail:yangjiecui@163.com
  • 基金资助:

    国家自然科学基金项目(No. 81541072)

Neuroprotective Effect of Mailuoning on MCAO Rats and Its Antioxidant Mechanism

YANG Jie,LIU Fu-jia,TIAN Zi-xia,WANG Le-le,XIE Xin-mei,PANG Xiao-bin   

  1. Pharmaceutical Institute,Pharmaceutical College of Henan University,Kaifeng,475004,China
  • Online:2017-08-26 Published:2017-12-01
  • Contact: 谢欣梅,女,副教授;研究方向:神经药理学;Tel/Fax:+86-0371-23880680,E-mail:xxm0475@163.com 庞晓斌,男,教授,博士生导师;研究方向:神经药理学;Tel/Fax:+86-0371-23880680,E-mail:hndxpxb@163.com
  • About author:杨杰,女,硕士研究生;研究方向:神经药理学;Tel:+86-0371-23880680,E-mail:yangjiecui@163.com
  • Supported by:

    国家自然科学基金项目(No. 81541072)

摘要: 目的:探讨脉络宁对大脑中动脉栓塞(middle cerebral artery occlusion,MCAO)大鼠的抗氧化作用机制。方法:将18 只成年SD 大鼠随机分成假手术组(control)、模型组(MCAO)、脉络宁组(mailuoning),每组6 只。采用线栓法建立大鼠MCAO 模型,缺血2 h 再灌注24 h。2% 2,3,5- 氯化三苯基四氮唑(2,3,5-triphenyltetrazolium chloride,TTC)染液测定大鼠脑梗死体积,荧光法测定活性氧(reactive oxygen species,ROS)的含量,吸光度法测定脑组织中丙二醛(malondialdehyde,MDA)含量以及还原型谷胱甘肽(glutathione,GSH),Western Blot 法测定半胱氨酸天冬氨酸蛋白酶-3(cysteinyl aspartate specific proteinase-3,caspase-3)、B淋巴细胞瘤-2(B-cell lymphoma-2,Bcl-2)、Bcl-2 相关X 蛋白(Bcl-2 associated X protein,Bax)表达量。结果:脉络宁能显著降低MCAO大鼠神经功能损伤,减少脑梗死体积;能够抑制脑组织中ROS含量以及MDA的生成,显著提高GSH 水平;能够抑制Bax、caspase-3 的表达,并增加Bcl-2 的表达。结论:脉络宁对MCAO 大鼠的保护作用可能与其抑制氧化应激及细胞凋亡有关。

关键词: 脉络宁, 缺血再灌注损伤, 大脑中动脉栓塞模型, 氧化应激

Abstract: Objective:To investigate the antioxidant mechanism of mailuoning on MCAO rats. Methods:18 adult SD rats were randomly divided into control group,MCAO group and mailuoning group,6 rats in each group. A rat middle cerebral artery occlusion (MCAO) model was established by suture method,ischemic 2 h and reperfusion 24 h. 2% 2, 3,5-triphenyltetrazolium chloride (TTC) was used to measure the cerebral infarct volume in rat. The content of reactive oxygen species (ROS) were determined by fluorescence spectrometry. The contents of malondialdehyde (MDA) and glutathione (GSH) in brain tissue were determined by absorbance method. The expression of cysteinyl aspartate specific proteinase (caspase-3),B-cell lymphoma-2 associated X protein (Bax),B-cell lymphoma-2 (Bcl-2) were measured by Western Blot. Results:Mailuoning could significantly decrease the neurological function of MCAO rats and decrease the volume of cerebral infarction. Mailuoning could inhibit the production of ROS and the formation of MDA,meanwhile increase the level of GSH in brain tissue. Mailuoning could also inhibit the expression of caspase-3,Bax,however,increase the expression of Bcl-2. Conclusion:The protective effect of mailuoning on MCAO rats may be related to its inhibition of oxidative stress and apoptosis.

Key words: mailuoning, ischemia-reperfusion injury, middle cerebral artery ocelusion(MCAO) model, oxidative stress

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