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Although there is a report of high rate of hepatitis B virus (HBV) infection in South Korea, only a few entire genome sequences of HBV isolates from Korea have been reported. To obtain the complete nucleotide sequence of the Korean HBV, viral DNA was extracted from sera of Korean patients with chronic HBV infection who have not been exposed to any antiviral treatment. Complete genomic sequences were determined on three Korean HBV isolates. The entire genomic length of Korean HBV isolates, designated as KUHB84, KUHB81, and KUHB95, was 3,215 base pairs. No deletions and insertions were observed. Core promoter mutations (T1762/A1764) were detected in two isolates, KUHB84 and KUHB95. Phylogenetic analysis based on the entire genomic sequences showed that the Korean HBV isolates were genotype C and related closely to the Japanese HBV.
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http://dx.doi.org/10.1002/jmv.10506 | DOI Listing |
J Viral Hepat
October 2025
Infectious Disease Epidemiology Group, Weill Cornell Medicine-Qatar, Cornell University, Doha, Qatar.
Hepatitis B virus (HBV) infection is a global health challenge, with the World Health Organization (WHO) targeting its elimination by 2030. Jordan lacks sufficient data on HBV epidemiology, including prevalence, incidence and clearance. This study addresses these gaps through a retrospective analysis of HBV testing data from 40,268 individuals collected at Biolab Diagnostic Laboratories (2010-2024).
View Article and Find Full Text PDFNPJ Biofilms Microbiomes
September 2025
Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Immune checkpoint inhibitors (ICIs) have revolutionized cancer immunotherapy, with the microbiome significantly influencing treatment outcomes. Analysis of 4663 studies (2014.01-2024.
View Article and Find Full Text PDFCell Signal
August 2025
Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China; Liaoning Key Laboratory of Viral Hepatitis, Shengjing Hospital of China Medical University, Shenyang, China. Electronic address:
Background And Aim: Hepatitis B virus (HBV) infection can lead to thrombocytopenia through its effects on hematopoiesis, although the underlying mechanisms have not been fully elucidated. Platelet production involves multiple stages, including the differentiation of mature megakaryocytes, which plays a pivotal role. In this study, we assessed the variances in megakaryocyte differentiation and maturation after HBV infection and investigated the molecular mechanism involved.
View Article and Find Full Text PDFSci Rep
August 2025
Division of Infectious Diseases, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, 4-6-1, Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.
In Japan, a universal hepatitis B (HB) vaccination was introduced in 2016. Through continuous analysis of HBV DNA mutations, the changes in HBV prevalence before and after the introduction of the universal HB vaccine can be monitored. In this study, we conducted mutational analysis of HBV DNA in HB small protein antigen-positive/HBV core antibody-positive/HB small protein antibody-positive/HBV DNA-positive donor blood samples, with the aim of establishing a baseline prior to the introduction of universal vaccination.
View Article and Find Full Text PDFAsian Pac J Cancer Prev
August 2025
Biochemistry Department, Biotechnology Research Institute, High Throughput Molecular and Genetic laboratory, Central Laboratories Network and the Centers of Excellence National Research Centre, Dokki, Giza, Egypt.
Context And Objective: An important worldwide health concern is infection with the hepatitis B virus (HBV), especially in underdeveloped nations. Gene polymorphisms encoding pro- and anti-inflammatory cytokines can influence how an HBV infection presents clinically. As mediators, cytokines play important functions in the immunological and inflammatory systems.
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