脂多糖对体外培养人脐静脉内皮细胞分泌功能及活力的影响

被引:15
作者
李珊珊
李澎
黄启福
机构
[1] 北京中医药大学基础医学院病理教研室!北京,北京中医药大学基础医学院病理教研室!北京,北京中医药大学基础医学院病理教研室!北京
关键词
脂多糖类; 内皮; 细胞; 内皮缩血管肽类; 一氧化氮;
D O I
暂无
中图分类号
R363 [病理生理学];
学科分类号
100104 ;
摘要
目的 :观察脂多糖对人脐静脉内皮细胞分泌缩血管因子内皮素 - 1、舒血管因子一氧化氮及其细胞活力的影响 ,为探讨感染性休克的发病机制提供实验资料。方法 :选用体外培养的 3代人脐静脉内皮细胞 ,分别使用浓度为 1g/L、10 0mg/L、10mg/L、1mg/L、10 0 μg/L、10 μg/L、1μg/L的脂多糖与之孵育 6h。分别使用放免法、硝酸还原酶法以及MTT法测定培养上清液内内皮素、一氧化氮的含量和内皮细胞的活力。结果 :正常对照组培养基中ET - 1的浓度 (pg/L)为 :2 5 1 6 4± 10 90。脂多糖与内皮细胞共孵育组培养基中ET - 1的浓度 (pg/L)分别为 :2 2 0 85± 19 14,2 78 6 7± 15 45 ,30 6 40± 11 6 0 ,312 87± 33 5 0 ,32 4 38± 17 0 2 ,2 91 49± 14 30 ,2 82 11± 13 38,各组与正常对照组比较 ,P <0 0 5或P <0 0 1;正常对照组培养基中总硝酸根离子 (NOx)的浓度 (μmol/L)为 6 2 9 46± 13 36 ,脂多糖与内皮细胞共孵育组培养基中总硝酸根离子 (NOx)的浓度 (μmol/L)分别为 :732 5 8± 2 3 2 1,6 6 9 87± 9 32 ,6 6 1 2 4± 16 80 ,6 5 0 33± 13 2 4,6 0 6 5 9± 12 94,6 2 6 75± 9 83,6 2 7 6 1± 5 6 1,各组与正常对照组比较 ,P <0 0 5或P <0 0 1。各组内皮细胞的活力分别为 :74%、81%、86
引用
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页码:67 / 70
页数:4
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