Correlation of quantitative assay of HBsAg and HBV DNA levels during chronic HBV treatment

Ozaras R., Tabak F., Tahan V., ÖZTÜRK R., Akin H., Mert A., ...More

Digestive Diseases and Sciences, vol.53, no.11, pp.2995-2998, 2008 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 11
  • Publication Date: 2008
  • Doi Number: 10.1007/s10620-008-0263-5
  • Journal Name: Digestive Diseases and Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2995-2998
  • Keywords: Chronic hepatitis B, HBsAg quantitation, Automated chemiluminescent microparticle immunoassay
  • Istanbul Medipol University Affiliated: No


Background and aim: Viral load is used for the diagnosis and monitoring the treatment of chronic hepatitis B (CHB). These methods are molecular-based and are expensive. Previous studies suggest that quantitative hepatitis B surface antigen (HBsAg) studied by automated chemiluminescent microparticle immunoassay can be a surrogate marker. In this study, we aimed to investigate whether quantitative HBsAg correlates hepatitis B virus (HBV) DNA levels during CHB treatment. Methods: The study included 18 patients (13 male, 5 female, mean age: 33 ± 9 years) with CHB. They were given pegylated interferon ± lamivudine for 52 months and serum samples were obtained in weeks 0, 4, 8, 24, 48, 52, and 76. HBV DNA was measured by TaqMan polymerase chain reaction (PCR; Erasmus MC, University Medical Center, Rotterdam, The Netherlands). Quantitative HBsAg was studied by automated chemiluminescent microparticle immunoassay (Architect HBsAg, Abbott, IL). Results: HBV DNA levels were measured as follows: 9.66, 7.69, 7.06, 5.93, 5.89, 5.88, and 7.27 logarithmic genome equivalent/ml, respectively. The corresponding HBsAg quantitation results were 42,888, 31,176, 37,882, 27,277, 28,279, 29,471, and 31,535 IU/ml, respectively. They showed a significant correlation (canonical correlation = 0.85). Conclusions: HBsAg studied by automated chemiluminescent microparticle immunoassay correlates with HBV DNA and can be a surrogate marker during the monitoring of the efficacy of HBV treatment. © 2008 Springer Science+Business Media, LLC.