实验动物与比较医学 ›› 2015, Vol. 35 ›› Issue (2): 92-96.DOI: 10.3969/j.issn.1674-5817.2015.02.002

• 论著 • 上一篇    下一篇

侧脑室注射4,4'-二异硫氰基芪-2,2'-二磺酸对大鼠脑缺血再灌注损伤的影响

袁征1, 张璐2, 武文卿1, 袁子彦2, 赵善民2, 余琛琳2, 林丽芳2, 汤球2   

  1. 1.军事医学科学院科技部条件处,北京 100036;
    2.第二军医大学实验动物中心,上海 200433
  • 收稿日期:2014-11-12 出版日期:2015-04-25 发布日期:2015-04-25
  • 作者简介:袁 征(1973-), 男, 实验师。E-mail: yuanzheng001@126.com
  • 基金资助:
    上海市科委发展基金(121409009700)

Protective Effects and Mechanisms of 4,4'-diisothiocyanostibibene-2,2'-disulfonic Acid Injected by Intarcerebroventricular against Cerebral Ischemia-reperfusion Injury Rat

YUAN Zheng1, ZHANG Lu2, WU Wen-qing1, YUAN Zi-yan2, ZHAO Shan-min2, YU Chen-lin2, LIN Li-fang2, TANG Qiu2   

  1. 1. Support Division, Department of Science and Technology, Academy of Military Medical Sciences, Beijing 10036, China;
    2. Laboratory Animal Center, Second Military Medical University, Shanghai 200433, China
  • Received:2014-11-12 Online:2015-04-25 Published:2015-04-25

摘要: 目的 探讨侧脑室注射4,4'-二异硫氰基芪-2,2'-二磺酸(DIDS)对脑缺血再灌注(CIRI)大鼠脑组织损伤的保护作用及其机制。方法 采用线栓法制备大鼠大脑中动脉栓塞(MCAO)模型,侧脑室注射法给药。脑缺血2 h再灌注24 h后用Zea-Longa标准进行神经功能评分; 红四氮唑溶液(TTC)染色法测定大鼠脑梗死面积; Western blot法测大鼠脑组织B淋巴细胞瘤-2(B-cell lymphoma-2, Bcl-2)和天冬氨酸蛋白酶-3(Caspase-3)两种蛋白的表达水平; 试剂盒测定大鼠脑组织内诱导型一氧化氮合酶(iNOS)和谷胱甘肽过氧化物酶(GSH-PX)的活性。结果 100 μmol/L DIDS侧脑室给药能改善大脑的神经功能,减少脑缺血面积,增加Bcl-2的表达,减少Caspase-3的表达,降低iNOS的活性。结论 DIDS可以通过调节凋亡相关蛋白的表达以及降低iNOS的活性对大鼠神经细胞进行保护,减轻脑缺血再灌注损伤(CIRI)造成的脑组织损伤。

关键词: 缺血再灌注损伤(CIRI), 侧脑室注射, 4, 4'-二异硫氰基芪-2, 2'-二磺酸(DIDS), B淋巴细胞瘤(Bcl-2), 天冬氨酸蛋白酶-3(Caspase-3), 诱导型一氧化氮合酶(iNOS), 谷胱甘肽过氧化物酶(GSH-PX)

Abstract: Objective To explore the protective effects and mechanisms of 4,4'-diisothiocyanostibibene-2,2'-disulfonic acid (DIDS) injected by intarcerebroventricular against cerebral ischemia-reperfusion injury (CIRI) in middle cerebral artery occlusive (MCAO) rats. Methods Focal cerebral ischemia in rats was produced by 2 h occlusion of the middle cerebral artery and 24 h reperfusion. DIDS and normal saline (NS) was injected by intarcerebroventricular. The neurologic deficit scores were investigated according to Zea-Longa's Standard. The infarct areas were assessed with software Imagepro Plus 6.0 after TTC staining. The levels of Bcl-2 and Caspase-3 in central neutral system were assessed by western blot. And the activities of inducible nitric oxide synthase (iNOS) as well as glutathione peroxidase (GSH-PX) were determined by specific kit. Results DIDS (100 μmol/L) could decrease the neurologic deficit score, reduced the infarct areas of the brain in CIRI rats, enhance the expression of Bcl-2, depresse the expression of Caspase-3, and decrease the activity of iNOS. Conclusion DIDS has a protective effect on CIRI of rat and this effect is related to enhancing the expression of Bcl-2 and diminishing Caspase-3 expression, decreasing the activity of iNOS.

Key words: Cerebral ischemia-reperfusion injury (CIRI), Intracerebroventricular injection, DIDS, Bcl-2, Caspase-3, Inducible nitric oxide (iNOS) synthase, Glutathione peroxidase (GSH-PX)

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