Study on the relationship of the disease activity of hepatitis B virus infection and the complexity of S region quasispecies of HBV / 中华传染病杂志

ABSTRACT

Objective To study the complexity of S region qusispecies in various disease stages of chronic hepatitis B virus(HBV) infection and its relation to disease activity. Methods Serum samples were obtained from 112 patients with chronic hepatitis B virus infection;22 with chronic carries(ASC),30 with chronic mild or moderate hepatitis(CH),60 with fulminant hepatitis failure(FHF). HBV qusispecies populations were separated by the single strand conformation polymorphism (SSCP) method targeted the S region and DNA sequencing analysis. Results The number of SSCP bands detected in the patients with ASC、CH and FHF was 1.45?0.13,3.70?0.22 and 5.93?0.24, respectively. There was a statistically significant difference in the number of quasispecies among various disease stages ( P