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枸杞多糖对脑缺血再灌注损伤小鼠脑组织的保护作用

Keywords: 枸杞多糖,脑缺血再灌注损伤,神经保护作用,小鼠

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Abstract:

目的探讨枸杞多糖对脑缺血再灌注损伤小鼠脑组织的保护作用。方法枸杞多糖10、20、40mg.kg-1灌胃给药,1天1次,连续7d,于末次给药1h后采用线栓法制作小鼠局灶性脑缺血再灌注模型,通过Bed-erson、Turgut评分法对各组小鼠进行神经功能缺失体征评分;单极引导法观察枸杞多糖对各组小鼠脑缺血前、缺血15min、再灌注15、45、90min后的脑电图变化;TTC染色法测定脑梗死体积。结果与模型组比较,LBP(20、40mg.kg-1)组和尼莫地平组再灌注90min,小鼠EEG幅度分别恢复到正常水平的54.4%、85.9%、75.4%(P<0.05或<0.01);LBP(20、40mg.kg-1)组和尼莫地平组与模型组比较,小鼠神经功能评分明显降低(P<0.01),即可明显改善脑缺血再灌注小鼠的行为障碍;与模型组比较,LBP(20、40mg.kg-1)组小鼠脑梗死面积明显缩小(P<0.05或0.01)。结论枸杞多糖对脑缺血再灌注损伤小鼠脑组织有较好的保护作用。

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