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国产PCR试剂和COBAS系统血清HBV—DNA检测结果不一致的原因分析
作者:姜新华 高国生 胡爱荣
来源:《中国现代医生》2017年第02期
[摘要] 目的 探讨国产PCR试剂和COBAS系统血清HBV-DNA检测结果不一致的原因。 方法 收集2013年12月~2015年10月来本院肝病中心就诊的慢性HBV感染者230例,国产PCR试剂血清HBV-DNA结果均为阴性,应用COBAS系统予以复查,分析两种方法HBV-DNA检测结果的差异及可能的影响因素。 结果 106例(46.09%)患者两种方法血清HBV-DNA检测结果均低于检测下限;124例(53.91%)患者在COBAS系统可检测到不同载量的HBV-DNA,包括3例(1.30%)隐匿性HBV感染。随着患者血清HBV-DNA载量的增加,性别比、HBeAg效价和阳性率、血常规和凝血功能等指标差异均无统计学意义(P>0.05),但血清HBsAg效价、终末期肝病构成比、肝功能酶类指标、AFP等逐渐升高(P
[关键词] 乙型肝炎病毒;脱氧核糖核酸;终末期肝病;COBAS Taqman系统;荧光定量PCR
[中图分类号] R512.6 [文献标识码] B [文章编号] 1673-9701(2017)02-0000-03 Analysis of the causes of inconsistency of serum HBV-DNA test results between homemade PCR reagent and COBAS system
JIANG Xinhua1 GAO Guosheng2 HU Airong3
1.Clinical Laboratory, Quhua Hospital in Zhejiang Province, Quzhou 324004, China; 2.Clinical Laboratory, Ningbo Second Hospital, Ningbo 315010, China; 3.Department of Liver Diseases, Ningbo Second Hospital, Ningbo 315010, China
[Abstract] Objective To explore the causes of inconsistency of serum HBV-DNA test results between homemade PCR reagent and COBAS system. Methods A total of 230 patients with chronic HBV infection who were diagnosed in the Center for Liver Diseases in our hospital from December 2013 to October 2015 were collected. The serum HBV-DNA results of homemade PCR reagents were all negative. COBAS system was applied for retest. The differences of HBV-DNA test results by both methods and the possible influencing factors were analyzed. Results The test results of serum HBV-DNA in 106 cases (46.09%) were lower than the lower limit of detection in both methods, HBV-DNA with different capacity was detected in the COBAS system in 124 patients(53.91%), including 3 cases(1.30%) of occult HBV infection. With the increase of patients' serum HBV-DNA capacity, there was no significant difference in sex ratio, HBeAg valence and positive rate, blood