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中国临床药理学与治疗学 ›› 2010, Vol. 15 ›› Issue (1): 36-40.

• 基础研究 • 上一篇    下一篇

新型神经保护剂TQ0701-2对大鼠脑缺血再灌注损伤的保护作用

李茜, 王秋娟, 郭青龙   

  1. 中国药科大学生理教研室, 南京210009, 江苏
  • 收稿日期:2009-10-15 修回日期:2009-11-27 出版日期:2010-01-26 发布日期:2020-09-21
  • 通讯作者: 王秋娟, 女, 教授, 博士生导师, 研究方向:心血管药理学。Tel:025-83271341  E-mail: qjwangnj@sina.com; 郭青龙,男, 教授, 博士生导师, 研究方向:肿瘤药理学。
  • 作者简介:李茜, 女, 硕士研究生, 研究方向: 心血管药理学。Tel: 13705150107 E-mail: karenliqian@sohu.com

Protective effect of TQ0701-2 on cerebral ischemia reperfusion injury in rats

LI Qian, WANG Qiu-juan, GUO Qing-long   

  1. Department of Physiology, China Pharmaceutical University, Nanjing 210009, Jiangsu, China
  • Received:2009-10-15 Revised:2009-11-27 Online:2010-01-26 Published:2020-09-21

摘要: 目的 研究新型神经保护剂TQ0701-2 对大鼠脑缺血再灌注损伤的保护作用。方法 将120 只雄性SD 大鼠随机分为假手术组、模型组、依达拉奉组(3 .0 mg/kg) 以及TQ0701-2 高剂量组(6 .0 mg/kg) 、中剂量组(3 .0 mg/kg) 、低剂量组(1 .5 mg/kg) 。假手术组仅进行手术而不造成缺血状态, 其余各组均采用Longa 线栓法制备大鼠MCAO 模型, 在缺血2 h 后进行再灌注。TQ0701-2 三个剂量组和依达拉奉组分别在缺血前30 min 以及再灌注0 、2 h 尾静脉注射TQ0701-2 和依达拉奉, 假手术组和模型组则给予等量的生理盐水。再灌注24 h 后观察大鼠神经功能损伤症状、脑组织梗死率以及病理组织学的改变。结果 模型组大鼠神经功能损伤严重, 脑组织梗死率也明显增高(P <0 .01 v s 假手术组) 。与依达拉奉的保护作用相同, TQ0701-2 高中低三个剂量均能显著降低MCAO 大鼠的神经功能评分和脑组织梗死率(P <0 .01 vs 模型组), 并且三个剂量的改善作用是随着浓度增大而增强的,具有剂量相关性。另外, TQ0701-2 对大鼠脑缺血再灌注所致的神经元变性、坏死也有一定的保护作用。结论 研究表明, 依达拉奉衍生物TQ0701-2 对大鼠的脑缺血再灌注损伤有明显的神经保护作用。

关键词: TQ0701-2, 脑缺血再灌注, 依达拉奉, 保护作用

Abstract: AIM: To investigate the protective effect of a new type nerves protectant TQ0701-2, as the derivate of edaravone free radical scavenger, on cerebral ischemia reperfusion injury rat.METHODS: 120 male SD rats were randomly divided into sham group, model group, edaravone group (3.0 mg/kg) and TQ0701-2 highdose group (6.0 mg/kg), middle-dose (3.0 mg/kg) and low-do segroup (1.5mg/kg).Animals in the latter five groups were subjected to transient focal ischemia by the middle cerebral artery occlusion (MCAO) for 2 h before reperfusion, while the sham group wasn't ischemic.The rats were injected with edaravone or TQ0701-230 min before ischemic and 0 min, 2 h after reperfusion in edarav one and TQ0701-2 groups, sham group and model group were treated with normal saline as well. After 24 h of reperfusion, the infarct ratio, neurological and histological deficient and the changes of pathohistology were evaluated.RESULTS: The infarct ratios and neurological deficit scores in the model group were increased (P <0.01 vs. sham group).The neuro logical deficit scores and infarct ratios in three doses of TQ0701-2 were significantly decreased (P <0.01vs.model group), similar to edaravone, and the protection was enhanced in a dose-dependent manner.Moreover, TQ0701-2 improved neuronal degeneration and necrosis induced by ischemia reperfusion.CONCLUSION: Thesere sults show that the the derivate of edaravone TQ 0701-2 has notable protective effect on cerebral ischemia reperfusion injury in rats.

Key words: TQ0701-2, Cerebral ischemia reperfusion, Edarav one, Protection

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