局灶性脑缺血时吡拉西坦对缺血半球能量代谢的影响

被引:8
作者
赵育梅
杨晶晶
寿艳红
孙明
徐超
机构
[1] 北京市神经外科研究所
[2] 北京大学第三医院神经内科
[3] 北京市神经外科研究所 北京
[4] 北京
关键词
局灶性脑缺血; 吡拉西坦; 能量代谢;
D O I
暂无
中图分类号
R743.34 [脑出血];
学科分类号
1002 ;
摘要
目的 观察吡拉西坦对局灶性脑缺血时缺血半球能量代谢的影响。方法 采用动脉腔内插线大鼠局灶性脑缺血模型及测定缺血 2 h/再灌注 2 h后缺血半球内乳酸 ( L A)水平、乳酸脱氢酶 ( L DH)和肌酸激酶 ( CK)活性的变化 ,HE染色结合图像分析测定缺血后 2 4h的梗死体积。结果 吡拉西坦 ( 2 0 0 mg/kg)可明显降低缺血半球内 L A水平 ,增加 L DH的活性 ,对 CK活性无明显影响 ,它可明显降低缺血 2 h/再灌注 2 2 h后的皮质、皮质下结构和半球的梗死体积。结论 吡拉西坦具有明确的抗局灶性脑缺血作用 ,它可明显改善缺血组织的能量代谢状态 ,增加 L DH的活性 ,减轻乳酸堆积及组织酸中毒 ,缩小梗死体积。
引用
收藏
页码:30 / 32
页数:3
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