大黄素对脓毒症大鼠凝血紊乱治疗的作用

被引:27
作者
林青伟
宋景春
曾庆波
钟林翠
宋晓敏
张昕
机构
[1] 解放军第九四医院重症医学科
关键词
大黄素; 脓毒症; 凝血; 大鼠;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的研究大黄素对脓毒症大鼠凝血功能紊乱的治疗作用。方法将90只健康的雌性SD(Sprague Dawley)大鼠按照随机数字表法随机分为假手术组、盲肠结扎组和大黄素组。收集盲肠结扎术后6、12、24 h的凝血酶原时间(PT)、部分凝血活酶时间(APTT)、血栓弹力图(TEG)普通杯及功能性纤维蛋白原杯参数,包括凝血反应时间(R)、血块形成速率(K)、血块形成动力学(Angle)、血块最大强度(MA)、凝血综合指数(CI)以及纤维蛋白原功能(FLEV)。观察各组大鼠48 h的生存率。结果假手术组、盲肠结扎组和大黄素组的盲肠结扎术后48 h生存率依次为100%、20%和40%。术后6 h,盲肠结扎组的APTT较假手术组均显著延长,大黄素组APTT较盲肠结扎组明显缩短;术后6、12、24 h,盲肠结扎组和大黄素组的PT较假手术组均明显延长,差异均有统计学意义(P<0. 05)。TEG普通杯结果显示盲肠结扎组中,K值在术后12 h显著降低(P<0. 05),α角、MA值以及CI值在术后12和24 h显著升高(P<0. 05)。大黄素组中,MA值以及CI值在术后12和24 h均显著升高(P<0. 05)。与假手术组比较,盲肠结扎组的α角在术后12 h显著升高(P<0. 05),MA值与CI值在术后6 h显著降低(P<0. 05)。TEG功能性纤维蛋白原杯结果显示盲肠结扎组中,α角在术后12 h显著增大(P<0. 05); MA值与FLEV值均在术后24 h显著升高(P<0. 05)。与盲肠结扎组比较,大黄素组的α角在术后12和24 h显著升高(P<0. 05),FLEV值及MA值在术后24h均显著升高(P<0. 05)。结论脓毒症大鼠的整体凝血状态表现为低凝倾向,凝血因子功能减弱,血小板及纤维蛋白原先减弱后增强。大黄素能够改善脓毒症大鼠内源性凝血因子活性和纤维蛋白原功能,降低脓毒症大鼠48 h病死率。
引用
收藏
页码:464 / 470
页数:7
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