ABSTRACT
Objective To understand the characteristics of the superinfection of hepatise B virus (HBV)together with hepatitis D virus(HDV)by comparing the differences of serum markers ALT,HBV DNA,HBVM,etc.In the pure HBV infection and the superinfection of HBV and HDV and to preliminarily invesitigate the pathogenesis of HDV.Methods The results of major bio-chemical indicators and hepatitis virus markers in 95 cases of HBV together with HDV infection and 100 cases of pure HBV infec-tion as the control group were statistically analyzed.Results Among 95 cases in the superinfection group,the incidence rate of chronic HBV was the highest,accounting for 66.32% and followed by liver cirrhosis.There was no statistical difference between the two groups according to the HBV DNA loads(P >0.05).The good positive correlation existed between the ALT abnormal rate of the liver function and HBV DNA in the superinfection group(r=0.90,P 250 IU/mL (P >0.05).According to HBsAg>250 IU/mL and HBeAg > 1 S/CO,the pure HBV infection group was higher than the super infec-tion group (P <0.05).The positive rate of HBcAb-IgM in the super infection group was significantly higher than that in the pure HBV group (P <0.05).Conclusion The superinfection of HBV together with HDV infection has the high occurrence rate in chro-nic hepatitis B.With the HBV DNA level increase,the abnormal rate of the liver function is also increased.HDV infection can inhib-it the HBeAg expression.The high positive rate of HBcAb-IgM in the superinfection patients might be related with chronic hepatitis B aggravation and recurrence.