外泌体β-actin mRNA在恶性胸腔积液、结核性胸腔积液鉴别诊断中的应用价值

Medical Innovation of China(2019)

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Abstract
目的:探索外泌体β-actin mRNA作为恶性胸腔积液和结核性胸腔积液鉴别诊断指标的临床价值.方法:收集70例结核性胸腔积液和57例恶性胸腔积液,采用外泌体沉淀试剂沉淀胸腔积液中的外泌体后用Trizol法提取外泌体总RNA,之后通过微滴式数字定量PCR技术检测外泌体中β-actin mRNA的表达.结果:数字定量PCR结果显示,1μg结核性胸腔积液外泌体总RNA中β-actin的拷贝数为75.20(15.15,614.00),1μg恶性胸腔积液外泌体总RNA中β-actin的拷贝数为4.65(1.95,22.40),两组相比差异有统计学意义(P=0.02).受试者工作特征曲线结果显示,曲线下面积为0.79±0.04(P<0.000 1).结论:外泌体β-actin mRNA可作为恶性胸腔积液和结核性胸腔积液鉴别诊断的潜在的新指标.
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