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Haushofer, AC; Hauer, R; Brunner, H; Köller, U; Trubert-Exinger, D; Halbmayer, WM; Haas, J; Kessler, HH.
Hepatitis B virus activity in patients with anti-hepatitis C virus antibody positivity and hepatitis B antigen positivity.
J Clin Virol. 2002; 25 Suppl 3(3):S99-102 Doi: 10.1016/S1386-6532(02)00186-5
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Leading authors Med Uni Graz: Haushofer Alexander
Co-authors Med Uni Graz: Haas Josef; Kessler Harald
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Abstract:: Background: Co-infection with hepatitis B virus (HBV) and HCV seems to be relatively frequent. There might be a mutual influence on replication activity of HBV and HCV. Objectives:. To determine the HBV activity in patients with serum HCV RNA and HBsAg positivity and in those with confirmed anti-HCV antibody and HBsAg positivity but serum HCV RNA negativity. Study design: A total of 1200 anti-HCV antibody positive samples were investigated. Samples of HCV RNA and HBsAg positive patients were compared with those of confirmed anti-HCV and HBsAg positive but serum HCV RNA negative patients. HBV activity was tested with the quantitative Cobas Amplicor HBV Monitor Test (Roche Diagnostic Systems, Pleasanton, CA). Results: Of all studied patients with chronic hepatitis C (serum HCV RNA positivity) only 1.0% were found to be HBsAg positive. In contrast, of all patients with confirmed anti-HCV positivity but serum HCV RNA negativity, 11.9% tested HBsAg positive. The median of HBV DNA levels of patients with serum HCV RNA positivity and HBeAg seroconversion (4.0 x 10(2) HBV DNA copies per ml) was found to be slightly lower than that of patients with serum HCV RNA negativity and HBeAg seroconversion (2.5 x 10(3) HBV DNA copies per ml; P > 0.05). The median of HBV DNA levels of patients with serum HCV RNA positivity but without HBeAg seroconversion (1.1 x 10(4) HBV DNA copies per ml) was found to be significantly lower than that of patients with serum HCV RNA negativity but without HBeAg seroconversion (2.6 x 10(7) HBV DNA copies per ml; P < 0.05). Conclusion: A mutual effect on HBV and HCV replication could be observed. The molecular assay for quantification of serum HBV DNA was found to be useful for the routine diagnostic laboratory. (C) 2002 Elsevier Science B.V. All rights reserved.
Find related publications in this database (using NLM MeSH Indexing): Hepatitis B - blood Hepatitis B - virology; Hepatitis B Antibodies - blood; Hepatitis B virus - genetics Hepatitis B virus - immunology Hepatitis B virus - physiology; Hepatitis C Antibodies - blood; Humans -; Prevalence -; RNA, Viral - blood RNA, Viral - isolation and purification; Superinfection -
Find related publications in this database (Keywords): co-infection; hepatitis B virus; hepatitis C virus; hepatitis B e antigen; seroconversion; polymerase chain reaction