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核酸浓缩提取法实时荧光定量PCR检测血浆EBV DNA载量的性能评价

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摘要 目的评价核酸浓缩提取法实时荧光定量PCR检测血浆EBV DNA载量的方法学性能。方法分析该检测系统的灵敏度、线性范围、精密度、与其他商品化的PCR检测系统相关性,并对132份临床标本进行检测分析。结果检测灵敏度为2.0×102Copies/ml;最低检测界限5.00×102Copies/ml。结果在5×102~5×106Copies/ml范围内呈线性,回归方程为y=0.245+0.945 x,r=0.998。批内CV 4.3%~7.6%,批间CV 8.9%~11.8%,总CV 9.9%~14.0%。与其他商品试剂对比检测,两者相关性良好(y=0.332+0.941x,r=0.952),结果相差在0.5 log以内。2组病例中,EB病毒急性感染组的血浆EBV DNA平均载量为8.2×104Copies/ml,EB病毒急性感染组与EB病毒既往感染组的血浆EBV DNA阳性率存在显著差异(P<0.01),健康对照组未检测出血浆EBV DNA。结论核酸浓缩提取法实时荧光定量PCR检测血浆EBV DNA载量,具有准确、快速、简便的优点,适合临床实验室常规开展。
出处 《中国输血杂志》 CAS CSCD 北大核心 2012年第4期366-368,共3页 Chinese Journal of Blood Transfusion
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