乙型肝炎病毒前S1抗原与HBV DNA及血清标志物的关系

目的 探讨乙型肝炎病毒前S1抗原（PreS1-Ag）与乙型肝炎病毒血清标志物（HBV-M）、HBVDNA的关系及其临床应用价值.方法 采用采用酶联免疫吸附试验（ELISA）测定乙肝血清标志物和乙肝病毒PreS1;采用荧光实时定量PCR法测定HBV DNA,并对检测结果进行比较分析.结果 在乙型肝炎患者中,HBV DNA和PreS1-Ag的阳性检出率差异无统计学意义,两者具有良好相关性;PreS1抗原在HBeAg（＋）组中检出率（80.3%）和HBeAg（-）组中检出率（56.3%）,差异有统计学意义;部分HBeAg阴性患者仍存在病毒的复制;若以HBV DNA定量≥103拷贝/ml为病毒复制的诊断标准,HBV DNA阳性患者HBeAg和PreS1的阳性检出率分别为51.5%和70.9%,两者差异有统计学意义.结论 HBV DNA和PreS1-Ag有较高的符合率,可作为HBV感染与复制的良好指标,PreS1-Ag较HBeAg更稳定地反应了HBV复制的情况,可作为乙型肝炎新的检测手段和新的标志物.

Clinical significance of preS1,HBV DNA and HBV-M in patients with chronic hepatitis B

Objective To investigate the clinical significance and relationship of preS1, HBV DNA and HBV-M. Methods PreS1 and HBV-M was detected by ELISA method,and HBV DNA was detected by PCR. Then the results were analyzed. Results In HBV patients,the positive rates of preS1 and HBV DNA had no statistically significant ,they had fine dependability. The detection rate of preS1 in HBeAg(+) group(80.3%) and HBeAg(+)group( 56.3% ) had statistically significant. In some patients,though HBeAg had become negative, HBV still replicated. In HBV DNA replicated patients(≥103 copies/ml) ,the detection rate of HBeAg and preS1 were 51.5% and 70.9% ,they had statistically significant. Conclusion HBV DNA and PreS1 had fine dependability,preSl could reflect the replication of HBV sensitively than HBeAg,it could be used as a reliable new marker of HBV replication in vivo.