ArticleClinical and experimental hepatology2022
Precore/core mutations of hepatitis B virus genotype D arising in different states of infection.
Article in Clinical and experimental hepatology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Precore/core mutation relatedness to viral reactivation in patients undergoing targeted therapy for hepatitis B virus-related hepatocellular carcinoma.World journal of biological chemistry · 2026Review
- Prevalence and Molecular Characterization of Chronic and Occult Hepatitis B Virus Infection Among Pregnant Women in St. Petersburg, Russia.International journal of molecular sciences · 2025Article
- Molecular analysis of HBV pre-core gene mutations in patients co-infected with HIV at a tertiary care hospital in North India.Access microbiology · 2025Article
- Full-Length Genome Sequencing and Analysis of Hepatitis B Viruses Isolated from Iraqi Patients.International journal of microbiology · 2024Article
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Authors and funding
8 authors.
Funding
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Abstract
Aim of the study: Precore/core variations and liver disease progression have been suggested. In this study, we aimed to determine the frequency of precore/core mutations in hepatitis B virus (HBV)-infected patients at various clinical stages. Material and methods: In total, 73 HBV-infected patients including 26 inactive carriers (IC), 20 chronic active (CA), and 27 patients with liver cirrhosis/hepatocellular carcinoma (C/HCC) were randomly selected. The HBV DNA was extracted from the sera and subjected to nested PCR for amplification of precore/core region. The PCR product was then sequenced by the Sanger method. Results: The stop codon of W28*(G1896A) was determined as the most prevalent mutation (55%) of the precore region. The comparison of groups also demonstrated that core substitutions at residues of S21, E40 and I105 (< 0.05) correlated with the development of the inactive carrier state. Furthermore, the total substitutions in Th epitopes (117-131) were significantly higher in the C/HCC group than the IC and CA groups ( Conclusions: Our results indicated a high frequency of W28* mutation in HBV studied patients. Moreover, variations including S21, E40 and I105 and R151 that were mapped onto cellular epitopes might be related to inactive state development.
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