《中国康复理论与实践》

《中国康复理论与实践》 ›› 2014, Vol. 20 ›› Issue (9): 827-830.

• 基础研究 • 上一篇    下一篇

葡萄籽原花青素对脑缺血再灌注大鼠氧化应激与学习记忆的影响

王珠，赵雅宁，李建民
   

  1. 河北联合大学护理与康复学院，河北唐山市063000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2014-09-25 发布日期:2014-09-25

Effects of Grape Seed Proanthocyanidin Extract on Peroxidation and Ability of Learning and Memory after Cerebral Ischemia/reperfusionInjury in Rats

WANG Zhu, ZHAO Ya-ning, LI Jian-min.
  

  1. Hebei United University, Tangshan, Hebei 063000, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2014-09-25 Online:2014-09-25

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被引次数

11

摘要： 目的探讨葡萄籽原花青素(GSPE)对脑缺血再灌注大鼠学习记忆能力的影响及其机制。方法72 只健康雄性Sprague-Dawley 大鼠分为假手术组(n=18)、模型组(n=18)、GSPE低剂量组(20 mg/kg, n=18)和GSPE高剂量组(200 mg/kg, n=18)。造模前，GSPE各组灌胃4 周，假手术组和模型组给予蒸馏水10 ml/kg &#8901;d。线栓法制备脑缺血再灌注损伤模型。分别于缺血2 h 再灌注后12 h、24 h、48 h 各取6 只大鼠，行Morris 水迷宫测试，HE染色观察脑组织形态变化，检测大鼠脑组织超氧化物歧化酶(SOD)、丙二醛(MDA)的含量。结果与假手术组比较，模型组Morris 水迷宫测试潜伏期延长，穿台次数减少(P<0.05)；HE染色显示脑组织神经元逐渐坏死；SOD含量降低，MDA含量增加(P<0.05)。与模型组比较，GSPE高剂量组各相同时间点潜伏期缩短，穿台次数增加(P<0.05)；HE染色显示脑组织神经元核固缩和空泡减少；SOD含量增加，MDA含量降低(P<0.05)。结论GSPE可以减轻脑缺血区病理改变，减轻缺血再灌注后脂质过氧化，改善脑缺血再灌注大鼠的学习记忆功能。

关键词: 脑缺血/再灌注, 葡萄籽原花青素, 水迷宫, 超氧化物歧化酶, 丙二醛, 大鼠

Abstract: Objective To investigate the effect of grape seed proanthocyanidin extract (GSPE) on learning and memory ability after cerebral ischemia/reperfusion injury in rats and its mechanism. Methods 72 healthy male Sprague-Dawley rats were divided into sham group (n=18), model group (n=18) and GSPE groups (20 mg/kg, 200 mg/kg, n=18 for each group). The GSPE groups were administered GSPE orally for 4 weeks, while the sham group and model group were given water 10 ml/kg. Then their middle cerebral arteries were obstructed for 2 h and reperfused, excepted the sham group. 6 rats from each group were selected to test with Morris water maze 12 h, 24 h and 48 h after reperfusion respectively. And then, their brain tissues were stained with Hematoxylin-Eosin staining to observe under optical microscope. The level of superoxide dismutase (SOD) and malondialdehyde (MDA) in the brain tissues were measured. Results Compared with the sham group, the latency significantly prolonged, and the incidence of crossing the area the platform located reduced in the model group in the Morris water maze test, with the SOD decreasing and MDA increasing (P<0.05). Compared with the model group, the latency reduced and the incidence of crossing the area increased in the GSPE 200 mg/kg group, with the SOD increasing and MDA decreasing (P<0.05). Conclusion GSPE may suppress peroxidation after the cerebral ischemia/reperfusion to protect brain and learning and memory ability from injury.

Key words: cerebral ischemia/reperfusion, grape seed proanthocyanidin extract, Morris water maze, superoxide dismutase, malondialdehyde, rats