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血浆miR-122在抗-HCV阳性献血者中表达的动态分析

Chinese Journal of Blood Transfusion(2017)

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Abstract
目的 动态分析抗-HCV阳性献血者血浆miR-122的表达特点及与HCV感染诊断指标的关联.方法 对133名抗-HCV阳性献血者、24名健康献血者及15名确证抗-HCV阳性追踪献血者血液标本抽提血浆miRNA,以实时荧光定量PCR法检测血浆miR-122,分析血浆miR-122相对表达量与HCV RNA、抗-HCV临界值指数(COI)等指标关联性.结果 ROC曲线分析:miR-122在抗-HCV+/HCV RNA+组和抗-HCV+/HCV RNA-组中诊断丙型肝炎的AUC(ROC曲线下面积)为0.830(95% CI:0.755-0.889),区分抗-HCV+/HCV RNA+组和抗-HCV+/HCV RNA-组的敏感性和特异性分别为74.7%和82.4%.追踪15例抗-HCV+/HCV RNA+献血者血浆miR-122表达明显降低(P<0.05).结论 血浆miR-122与HCV感染密切相关,确证HCV RNA感染献血者血浆miR-122随时间迁移表达降低.
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Key words
Hepatitis C virus,Plasma miR-122,HCV RNA,COI,biomarker
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