脑梗死患者血浆对氧磷酯酶-1和氧化低密度脂蛋白水平的变化及意义

被引：4

作者：

蒋兴亮

周京国

唐中

机构：

[1] 川北医学院附属医院检验科

来源：

中国老年学杂志 | 2005年 / 09期

关键词：

脑梗死; 对氧磷酯酶-1; 氧化低密度脂蛋白;

D O I：

暂无

中图分类号：

R743 [脑血管疾病];

学科分类号：

摘要：

目的探讨脑梗死患者血浆对氧磷酯酶-1(PON-1)活性和氧化低密度脂蛋白(ox-LDL)含量变化以及它们在脑梗死发生发展过程中的作用。方法用对氧磷为底物的速率法和酶联免疫吸附法(ELISA)分别测定75例急性期脑梗死患者血浆PON-1活性和ox-LDL水平,并与35例脑出血患者及46例健康对照组比较。结果(1)脑梗死患者血浆PON-1活性为(138.2±25.3)U/L,明显低于脑出血组〔(168.2±28.2)U/L〕及健康对照组〔(171.1±28.5)U/L〕(P<0.01);脑梗死患者血浆ox-LDL水平为〔(615.3±253.2)μg/L〕,明显高于脑出血组〔(460.9±193.0)μg/L〕及健康对照组〔(437.7±187.4)μg/L〕(P<0.01)。(2)大梗死灶组血浆PON-1活性明显低于中梗死灶组和小梗死灶组。而大梗死灶组血浆ox-LDL水平明显高于中梗死灶组和小梗死灶组(P<0.01)。(3)相关分析表明,脑梗死时血浆PON-1活性与ox-LDL水平呈负相关(r=-0.556,P<0.01),而与血脂水平无明显的相关关系。结论脑梗死患者血浆PON-1活性降低和ox-LDL水平升高,提示血浆PON-1可能通过降低抗氧化能力机制参与了脑梗死的病理生理过程。

引用

页码：1026 / 1027

页数：2

共 8 条

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