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乌司他丁对急性肺损伤大鼠肺组织HO-1表达的影响
被引:4
作者
:
论文数:
引用数:
h-index:
机构:
王剑
论文数:
引用数:
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机构:
卿国忠
论文数:
引用数:
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机构:
杨少陵
机构
:
[1]
南华大学附属第一医院急诊科
来源
:
当代医学
|
2012年
/ 18卷
/ 25期
关键词
:
急性肺损伤;
乌司他丁;
血红素氧合酶;
D O I
:
暂无
中图分类号
:
R563.8 [呼吸衰竭];
学科分类号
:
100201
[内科学]
;
摘要
:
目的乌司他丁对内毒素诱导大鼠急性肺损伤(acute lung jury,ALI)时血红素氧合酶(hemeoxygenase,HO)-1表达,从而为探讨乌司他丁在ALI中的应用提供理论依据。方法将48只健康雄性SD大鼠随机分为阴性对照组、ALI模型组、乌司他丁干预组和乌司他丁+氯血红素(Hm)组,每组各12只。模型组用5mg/kg LPS诱发ALI模型,乌司他丁组按50000u/kg体重给予乌司他丁静脉注射。各组给药后2h、6h、12h观察丙二醛(MDA)的含量以及HO-1的活性;RT-PCR和Western blot检测HO-1 mRNA和蛋白的表达情况。结果用LPS成功复制出ALI模型,同时,肺组织中MDA含量、HO-1蛋白活性、HO-1 mRNA以及蛋白水平均高于阴性对照组(P均<0.05);乌司他丁+LPS组、乌司他丁+LPS+Hm组肺MDA含量低于LPS模型组,但HO-1活性、mRNA和蛋白水平高于相应LPS组(P均<0.05)。结论乌司他丁对ALI的保护作用可能是通过增强HO-1活性、上调mRNA和蛋白表达水平而实现的。
引用
收藏
页码:10 / 12
页数:3
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