HBV-DNA和HBV-M定量检测的相关性研究

目的 探讨HBV-DNA和乙型肝炎五项(HBV-M)定量检测之间的相关性及其在乙型肝炎感染诊断中的应用价值.方法 收集我院363例乙型肝炎和既往感染HBV患者血清,实时荧光定量PCR检测HBV-DNA,同时以时间分辨免疫荧光技术(TRFIA)定量检测HBV-M,用统计软件分析两者之间的关系.结果 乙型肝炎大三阳(HBsAg、HBeAg、HBcAb阳性)患者外周血HBV-DNA阳性率为92.9%(79/85),平均DNA含量(4.31±1.64)×106 Copies/ml.乙型肝炎小三阳患者(HBsAg、HBeAb、HBcAb阳性)外周血HBV-DNA阳性率为47.7%(105/220),平均DNA含量(2.47±2.21)×104 Copies/ml.HBsAg、HBcAb阳性3例,HBV-DNA均阳性,HBV-DNA为(5.73±1.14)×105Copies/ml.余人群外周血HBV-DNA均阴性.HBV-DNA拷贝量与HBeAg载量呈正相关(r=0.59,P=0.041);HBV-DNA拷贝量与HBsAg含量相关一致性不明显(r=0.221,P=0.077).结论 HBV-M与HBV-DNA之间既有联系又有不同,临床上可以多项检测来估计病情,判断疗效.

Correlation of quantititive measurements between HBV-DNA and HBV-M

Objective To explore the correlation between HBV-DNA and serum HBV markers quantitative detection and determine its diagnosis value in hepatitis B virus infection. Methods The HBV-DNA was measured by fluorescence quantitative PCR and hepatitis B virus was detected by time-resolved fluorescence immunoassay (TRFIA). The relationship between the two tests was analyzed statistically using software. Results Detection of HBV-DNA in the peripheral blood of patients with HBsAg (+), HBeAg (+), HBcAb ( + ) showed 92. 9% (79/85) positive rate,and the average DNA copy number was (4.31 ± 1.64) × 106 copies/ml. While the detection of HBV-DNA in the peripheral blood of patients with HBsAg ( + ), HBeAb ( + ), HBcAb ( + ) showed 47.7% (105/220) positive rate, and the average DNA copy number was (2.47 ± 2. 21 ) × 104 copies/ml. In normal controls,blood HBV-DNA detection was negative. Furthermore, HBV-DNA copy number correlated positively with HbeAg quantitation (r = 0. 59, P = 0. 041 ). However, we found no significant correlation between HBV-DNA copy number and HbsAg quantititation (r = 0.221, P = 0.077). Conclusions Different HBV-M had diverse correlation with HBV-DNA number, comprehensive detection of them would be better to assist clinical diagnosis and evaluate the response to treatments.