检测乙型肝炎病毒表面抗原大蛋白的临床意义

目的检测乙肝患者血清中乙肝两对半（HBVM）、乙型肝炎病毒表面抗原大蛋白（HBV—LP）以及HBVDNA，比较在不同乙肝两对半模式的患者中HBV．LP与HBVDNA的检出率，探讨乙型肝炎病毒表面抗原大蛋白（HBV—LP）用于乙肝患者临床诊断的意义。方法采用酶联免疫吸附实验（ELISA）检测HBV．LP和乙肝两对半，采用荧光定量PCR方法对患者HBVDNA进行检测。结果（1）相同乙肝模式患者血清中HBV．LP与HBVDNA检出率差异无统计学意义；（2）143例小三阳乙肝患者血清中HBV．LP与HBVDNA阳性率差异无统计学意义，二者的检出一致率为82．52％[（65＋53）／143]；（3）HBV—LP吸光度（A值）与HBVDNA呈正相关关系（r=0．983）。结论乙型肝炎病毒表面抗原大蛋白与HBVDNA有良好的正相关关系，在HBeAg阴性的乙肝患者中乙肝病毒表面抗原大蛋白（HBV—LP）与HBVDNA有较高检出一致率，HBV—LP用于临床反映乙肝病毒复制水平，特别是HBeAg阴性乙肝患者体内病毒复制情况有重要的意义。

To explore the clinical significance of HBV large protein in diagnosing viral replication

OBJECTIVE: To explore the clinical significance of HBV large protein (HBV-LP) in diagnosing viral replication, we detected the HBV-LP, HBV DNA and the hepatitis B viral markers (HBV M) in the serum of the patients infected with HBV. METHODS: HBV-LP and HBV M were analyzed by using ELISA. HBV-DNA was quantitatively detected using real-time fluorescent polymerase chain reaction. RESULTS: (1) No significant difference between the detectable rate of HBV DNA and HBV-LP was found in the same HBV M (P 0.05). (2) No significant difference between the positive rate of HBV DNA and HBV-LP was found in HBeAg negative patients. (3) The contents of serum HBV-LP was positively correlated with the number of HBV DNA copies. CONCLUSION: There was a close correlation between the positive rate of HBV-LP and HBV DNA, and HBV-LP is a reliable serological marker that can reflect the replication of HBV.