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百草枯致肺纤维化大鼠肺组织中Smo、Gli1的表达变化及意义 被引量:1

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摘要 目的观察百草枯(PQ)致肺纤维化大鼠肺组织中Smo、Gli1的水平变化,并探讨其意义。方法 40只雄性SD大鼠随机分为PQ组和生理盐水对照组(NS组),分别一次性腹腔注入PQ农药(40 mg/kg)和生理盐水(40 mL/kg),21 d后处死大鼠,行肺组织病理组织学检查,观察肺纤维化程度;免疫组化检测Smo和Gli1的表达。结果 PQ组大鼠肺组织Smo和Gli1蛋白表达明显增强,与NS组比较P<0.01。PQ组Smo及Gli1蛋白的表达呈正相关(r=0.956,P<0.001)。结论 PQ致肺纤维化大鼠肺组织中Smo、Gli1蛋白表达增强,这可能是Sonic hedgehog(SHH)信号途径异常激活的机制之一,SHH信号途径的异常激活可能直接参与了PQ所致肺纤维化的发生、发展过程。
出处 《山东医药》 CAS 2014年第7期31-32,共2页 Shandong Medical Journal
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参考文献11

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