Clinical significance of Hepatitis B virus(HBV) genotyping is increasingly recognized. The aim of this study was to evaluate reproducibility, accuracy, and sensitivity of an enzyme immunoassay (EIA) based HBV genotyping kit, which designed to discriminate between genotypes to A, B, C, or D by detecting genotype-specific epitopes in PreS2 region. Using the four genotypes panels, the EIA demonstrated complete inter and intra-assay genotyping reproducibility. Serum specimens had stable results after 8 days at 4 degrees C, or 10 cycles of freezing-thawing. In 91 samples that have been genotyped by DNA sequencing, 87(95.6%) were in complete accordance with EIA genotyping. Of examined 344 HBsAg-positive serum specimens, genotypes A, B, C and D were determined in 26 (7.6%), 62 (18.0%), 228 (66.3%), and 9 (2.6%) cases, respectively. Of 19 (5.5%) specimens unclassified by the EIA, 13 were found to have low titer of HBsAg concentration (< 3 IU/ml), and the other 5 had amino acid mutations or deletions within targeted PreS2 epitopes. The EIA allowed genotyping even in HBV DNA negative samples (96.2%). In conclusion, HBV genotype EIA is reliable, sensitive and easy assay for HBV genotyping. The assay would be useful for clinical use.
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J Appl Lab Med
December 2024
Laboratory of Viral Hepatitis, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro, Brazil.
Background: Exploring polymorphisms in vitamin D-related genes (VDR) within the Brazilian population provides a valuable model to contribute to the influence of the host genetic variants on chronic viral hepatitis B (CHB).
Methods: 126 CHB patients were enrolled in the current study and clinical, laboratory, and 25-hydroxyvitamin D [25(OD)D] level data were obtained. Four VDR (rs7975232, rs1544410, rs10735810, rs731236) and 2 vitamin D-binding protein/carrier globulin (GC) polymorphisms (rs4588 and rs7041) were determined using TaqMan assays and nucleotide sequencing.
J Virus Erad
December 2024
Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, 610041, China.
Background: Hepatitis C virus (HCV) eradication with sofosbuvir/velpatasvir (SOF/VEL) represents a significant advancement, offering hope for eliminating the virus in diverse patient populations. But real-world data on its effectiveness and safety remains scarce for patients with chronic hepatitis C (CHC) in China, especially those with HCV GT3b, cirrhosis, hepato-cellular carcinoma (HCC), or HCV/hepatitis B (HBV), HCV/HIV, or HCV/HBV/HIV coinfection.
Methods: In this real-world prospective observational study, we recruited patients from the West China Hospital and Public Health Clinical Center of Chengdu in China.
Clin Exp Hepatol
September 2024
Faculty of Medicine, Medical University of Białystok, Białystok, Poland.
Aim Of The Study: The aim of the study was to characterize the population with hepatitis C virus (HCV) infection and steatotic liver disease (SLD) in comparison to the non-SLD HCV-infected patients and to evaluate the effectiveness of treatment with direct-acting antivirals (DAA).
Material And Methods: The analysis included 62 patients diagnosed with SLD and 14,284 non-SLD patients from the EpiTer-2 database for the period 2015-2022.
Results: Unlike the non-SLD population, the SLD group was dominated by men (49.
Aliment Pharmacol Ther
December 2024
Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
Background: HBeAg-positive chronic hepatitis B (CHB) with low HBsAg levels represents a relatively rare serological pattern and is closely associated with the severity of liver disease. However, the underlying mechanisms in such cases remain largely unclear.
Methods: Treatment-naïve HBeAg-positive CHB patients with low HBsAg levels in China were enrolled and analysed.
World J Gastroenterol
December 2024
Medical Technology Department, Hanoi Medical University, Hanoi 116177, Viet Nam.
Background: Human leukocyte antigen (HLA) class II molecules are cell surface receptor proteins found on antigen-presenting cells. Polymorphisms and mutations in the gene can affect the immune system and the progression of hepatitis B.
Aim: To study the relation between rs2856718 of , rs3077, and rs9277535 of , hepatitis B virus (HBV)-related cirrhosis, and hepatocellular carcinoma (HCC).
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