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Effect of "Zhikuoning Mixture" on Expression of MMP-9 mRNA in the Lungs of Bronchiectatic Rats
Author(s): 
Pages: 52-54
Year: Issue:  5
Journal: ACTA UNIVERSITATIS TRADITIONIS MEDICALIS SINENSIS PHARMACOLOGIAEQUE SHANGHAI

Keyword:  支扩宁合剂支气管扩张症基质金属蛋白酶-9实时荧光定量PCR;
Abstract: 目的:探讨支扩宁合剂对支气管扩张症大鼠肺组织基质金属蛋白酶-9(MMP-9)mRNA表达的影响.方法:将SD大鼠随机分为正常组、模型组、西药组、中药组.建立大鼠支气管扩张症模型,除正常组外,自造模第3周起分别予生理盐水、左氧氟沙星、支扩宁合剂干预.实验结束,采用实时荧光定量PCR检测各组大鼠肺组织匀浆MMP-9 mRNA表达,应用Ⅳ型胶原免疫组化染色观察各组大鼠支气管黏膜上皮基底膜情况.结果:模型组大鼠肺组织MMP-9 mRNA表达显著上调(P<0.01),支气管壁黏膜上皮基底膜破坏;支扩宁合剂治疗组大鼠MMP-9 mRNA过度表达受抑(P<0.01),支气管黏膜上皮基底膜基本完整.结论:支扩宁合剂可抑制支气管扩张症气道中MMP-9 mRNA表达,这可能是其疗效机制之一,值得进一步研究.
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