灯盏花素对大鼠实验性脑缺血再灌注损伤的保护作用

被引:9
作者
郝丕达 [1 ]
吴庆建 [2 ]
王松梅 [3 ]
杨明峰 [3 ]
孙保亮 [3 ]
机构
[1] 单县东大医院神经内科
[2] 济宁市第一人民医院急诊科
[3] 泰山医学院
关键词
脑缺血; 再灌注损伤; 梗死,大脑中动脉; 蛋白激酶C; 灯盏细辛; 半胱氨酸天冬氨酸蛋白酶3;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
摘要
目的探讨灯盏花素对大鼠局灶性脑缺血再灌注性损伤的保护作用及机制。方法选择健康成年雄性SD大鼠40只,随机分为4组:假手术组;生理盐水组:生理盐水+大脑中动脉栓塞;硫酸镁组:硫酸镁+大脑中动脉栓塞;灯盏花素组:灯盏花素75mg/kg+大脑中动脉栓塞,每组10只。3、7、14d采用Longa评分、圆筒实验对各组大鼠进行神经功能评分;TTC染色测量脑梗死体积比以及干湿称重法测量脑组织含水量;免疫荧光染色法检测缺血脑组织半胱氨酸天冬氨酸蛋白酶3(caspase-3)阳性细胞表达。结果灯盏花素组大鼠3、7d神经功能评分脑组织含水量明显低于生理盐水组和硫酸镁组,3、7、14d脑梗死体积百分比和caspase-3阳性细胞表达明显低于生理盐水组和硫酸镁组,差异有统计学意义(P<0.05)。灯盏花素组3、7、14d圆筒实验前肢使用不对称性改善明显优于生理盐水组和硫酸镁组[(37.60±6.54)分vs(60.28±7.26)分、(58.56±5.61)分,(12.64±2.67)分vs(52.67±2.86)分、(39.63±5.06)分,(7.62±5.30)分vs(30.33±2.16)分、(30.73±5.64)分,P<0.05]。结论灯盏花素注射液可显著减少缺血再灌注脑损伤体积,减轻脑水肿,抑制caspase-3表达,显著改善脑缺血后神经功能损伤。
引用
收藏
页码:749 / 754
页数:6
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