We examined prospectively the influence of occult hepatitis B virus (HBV) infection on the histopathological features and clinical outcome of HCV RNA-positive chronic hepatitis (CH-C) and detected hepatitis B core (HBc) particles in hepatocytes. The subjects were 468 patients with CH-C or liver cirrhosis (LC) who were negative for serum hepatitis B surface antigen (HBsAg) by enzyme-linked immunosorbent assay. HBV DNA was detected in serum by nested PCR. HBsAg and HBc antigen (HBcAg) in liver were investigated using immunohistochemical techniques and light (LM) and electron microscopy (EM). Serum HBV DNA was detected in 43.6% of the patients studied. There were no significant differences between HBV DNA-positive and DNA-negative patients in terms of their clinical profiles. For HBV DNA-positive patients, the degree of inflammatory cell infiltration and irregular regeneration of hepatocytes was significantly greater than for HBV DNA-negative patients. The cumulative probability of development of hepatocellular carcinoma (HCC) was significantly higher for HBV DNA-positive patients than for HBV DNA-negative patients. HBV DNA positivity was a risk factor for the occurrence of HCC according to multivariate analysis. HBsAg and HBcAg were detected in 8.5 and 72.3%, respectively, of the livers of serum HBV DNA-positive individuals. Core particles were detected in the nuclei of the hepatocytes by IEM. The histopathological features and long-term outcome of CH-C or LC could be affected by occult HBV infection.
© 2009 S. Karger AG, Basel
- Occult hepatitis B virus infection
- Chronic hepatitis C
- Liver cirrhosis
- Hepatocellular carcinoma
- Electron microscopy
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Mitsuhiko Moriyama, MD, PhD
Division of Gastroenterology and Hepatology, Department of Medicine
Nihon University School of Medicine
30-1 Oyaguchi kamimachi, Itabashiku, Tokyo 173-8610 (Japan)
Tel. +81 3 3972 8111, Fax +81 3 3956 8496, E-Mail email@example.com
Received: August 28, 2006
Accepted after revision: October 22, 2008
Published online: January 7, 2009
Number of Print Pages : 10
Number of Figures : 3, Number of Tables : 6, Number of References : 38
Intervirology (International Journal of Basic and Medical Virology)
Vol. 51, No. 5, Year 2008 (Cover Date: February 2009)
Journal Editor: Liebert U.G. (Leipzig)
ISSN: 0300-5526 (Print), eISSN: 1423-0100 (Online)
For additional information: http://www.karger.com/INT
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