虎杖苷吸入剂对哮喘大鼠肺组织TNF-α和Eotaxin基因表达的影响

Journal of Medical Research(2010)

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Abstract
目的分析虎杖苷吸入剂对支气管哮喘大鼠模型TNF-α和Eotaxin基因表达调控的作用机制和干预效果。方法以10%的卵蛋白(OVA)和3%的氢氧化铝混合液腹腔注射实验大鼠2次致敏,然后以2%的OVA诱喘,并进行虎杖苷和氨茶碱干预及生理盐水对照实验两周。通过RT-QPCR方法检测各组实验大鼠肺组织TNF-α mRNA和Eotaxin mRNA的相对水平,以t检验统计分析各项实验数据。结果虎杖苷干预组大鼠的哮喘症状得到明显缓解,其肺组织TNF-α和Eotaxin mRNA的相对水平(0.0005±0.00039,0.0006±0.00035)比哮喘对照组(0.0165±0.01268,0.0280±0.02488)和正常对照组(0.0017±0.00101,0.0055±0.00209)均有所下降,但差异不显著(P>0.05,P>0.05;P>0.05,P>0.05)。结论虎杖苷吸入剂可降低哮喘大鼠肺组织的TNF-α和Eotaxin基因表达水平,有助于改善哮喘症状。
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Key words
Gene expression,Eotaxin,Bronchial asthma,Tumor necrosis factor α,Polydatin
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