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己酮可可碱对大鼠局灶性脑缺血的保护作用 被引量:2

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摘要 目的探讨己酮可可碱对大鼠大脑中动脉闭塞所致局部脑缺血的保护作用。方法将80只SD大鼠随机分为4组:假手术组、缺血模型组、川芎嗪组和己酮可可碱组,每组20只。其中10只用于脑梗死体积测定,10只用于生化检测。模拟临床口服给药方法,大鼠采用灌胃给药。术前实验性给药一周,术后继续给药3 d。川芎嗪给药剂量为50 mg/kg,PTX组给药剂量为100 mg/kg。电凝阻断大脑中动脉,制备局灶性脑缺血模型,观察大鼠神经行为障碍、脑梗死范围测量、脑组织丙二醛(malondialdehyde,MDA)含量和超氧化物歧化酶(superoxide dis-mutase,SOD)活性情况。结果与缺血模型组比较,术后4、24、72 h PTX组和川芎嗪组神经缺陷症状明显改善(P<0.01);川芎嗪组和PTX组均能明显缩小脑梗死面积(P均<0.01);缺血模型组SOD活性明显低于假手术组(P<0.01),MDA含量明显高于假手术组(P<0.01);各给药组大鼠脑组织SOD活性及MDA含量与缺血模型组比较,差异均有统计学意义(P均<0.01)。结论己酮可可碱对大鼠局灶性脑缺血有保护作用。
出处 《江西医学院学报》 CAS 2007年第4期17-19,共3页 Acta Academiae Medicinae Jiangxi
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