糖皮质激素受体-α表达下调与鼻息肉相关性的研究

Chinese Archives of Otolaryngology-Head and Neck Surgery(2011)

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Abstract
目的检测糖皮质激素受体α(glucocorticoid receptor-α,GR-α)mRNA在鼻息肉组织及健康人群鼻腔下鼻甲黏膜、窦口鼻道复合体(ostiomeatal complex,OMC)区黏膜的定量表达,并探讨其在鼻息肉发生发展中可能存在的的机制。方法采用荧光定量逆转录-聚合酶链反应(FQ-RT-PCR)检测下鼻甲黏膜、OMC区黏膜及鼻息肉组织中GR-α的定量表达。结果下鼻甲黏膜中GR-αmRNA表达[(135.4±5.2)×104 copies/μg]高于OMC区黏膜[(114.7±4.3)×104 copies/μg],有显著差异(P<0.01);下鼻甲、OMC区黏膜GR-αmRNA表达均高于鼻息肉组织[(23.5±12.1)×104 copies/μg]有显著差异(P<0.01);随着鼻息肉的发展,其组织中的GR-α表达量逐渐减少。结论鼻腔黏膜局部区域GR-α表达下调可能是鼻息肉发生发展的始动因素之一。
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Key words
Nanal Polyps,fluorescence quantitative reverse transcription-polymerase chain reaction,Receptors,Glucocorticoid,Glucocorticoids
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