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  • Title: Dynamics of hepatitis B e antigen index ratio correlate with treatment response in chronic hepatitis B patients.
    Author: Wang CC, Liu CJ, Lai MY, Kao JH, Chen DS.
    Journal: Liver Int; 2007 Mar; 27(2):235-9. PubMed ID: 17311619.
    Abstract:
    BACKGROUND/AIM: Hepatitis B e antigen (HBeAg) seroconversion is an important event in the natural history of chronic hepatitis B virus (HBV) infection. Whether early dynamics of HBeAg index ratio could predict therapeutic endpoint of HBeAg seroconversion in patients receiving lamivudine remains unclear and thus deserves investigation. METHODS: A total of 52 patients (males/females, 40/12; mean age, 31.1+/-7.5 years) with HBeAg-positive chronic hepatitis B and serum alanine aminotransferase (ALT) level > or = 5 x upper limit of normal were enrolled. They received daily 100 mg lamivudine for at least 1 year. Pretreatment HBeAg index ratio and the dynamics during treatment [early serologic response (ESR) and serologic breakthrough (SB)] between responders and non-responders were compared. RESULTS: Of these 52 patients, mean pretreatment serum ALT level was 580 IU/l and baseline HBeAg index ratio (S/N) was 37.9. The overall 1-year on-treatment combined response rate was 50%. By using linear regression analysis, HBeAg index ratio was positively correlated with serum HBV DNA level (Pearson's correlation coefficient: 0.62, P<0.0001). By using multivariate logistic regression analysis, ESR could predict the success of treatment response (P=0.0302), and SB had a 90% positive predictive value of treatment failure. CONCLUSIONS: HBeAg index ratio is closely correlated with serum HBV DNA level, and the dynamics of HBeAg index ratio may predict 1-year on-treatment combined response to lamivudine in HBeAg-positive chronic hepatitis B patients.
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