The loss of HBeAg without precore mutation results in lower HBV DNA levels and ALT levels in chronic hepatitis B virus infection

Naoto Kawabe, Senju Hashimoto, Masao Harata, Yoshifumi Nitta, Michihito Murao, Takuji Nakano, Hiroaki Shimazaki, Yuko Arima, Naruomi Komura, Kyoko Kobayashi, Kentaro Yoshioka

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Background: The aim of this study was to investigate the correlation between precore (PC)/basal core promoter (BCP) mutations and the viral loads or activity of hepatitis in patients with chronic hepatitis B virus (HBV) infection. Methods: HBV genotypes, PC mutations, BCP mutations, HBV DNA levels, and serological markers of HBV were analyzed in all the patients with chronic HBV infection seen in Fujita Health University Hospital from June 2004 to November 2008 (n = 215). Results: HBV genotype was C in 169 patients, B in 16, A in 3, F in 1, and unclassifiable in 5. Among the patients with genotype C, the prevalence of PC wild type was significantly lower in hepatitis B envelope antigen (HBeAg)(-) patients than in HBeAg(+) patients (9.5% versus 49.0%, P < 0.0001). Among HBeAg(-) patients, the patients with PC wild type had significantly lower serum viral loads and alanine aminotransferase (ALT) levels compared with those with PC mutant (P < 0.001). Among HBeAg(-) patients, the patients with genotype B had lower serum viral loads compared with those with genotype C (3.6 ± 0.9 versus 4.6 ± 1.6, P < 0.05), and the prevalence of BCP wild type was significantly higher in those with genotype B than in those with genotype C (58.3% versus 10.8%, P < 0.05). Conclusions: Among HBeAg(-) patients with genotype C, the patients with PC wild type had significantly lower viral loads and ALT levels than those with PC mutant. This suggests that the patients with PC wild type may have better prognosis than those with PC mutant among HBeAg(-) patients with genotype C.

Original languageEnglish
Pages (from-to)751-756
Number of pages6
JournalJournal of Gastroenterology
Volume44
Issue number7
DOIs
Publication statusPublished - 11-05-2009

All Science Journal Classification (ASJC) codes

  • Gastroenterology

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