results genotype b (73.6%) and genotype c (26.4%) were detected in these patients. after treatment for 12 months, the rate of hbv dna seroclearance, alt normalization, and hbeag seroconversion were significantly higher in adv group than in placebo group (p < 0.05). however, there were no significant differences in these three rates between patients infected with genotype b and c (p > 0.05). obj...

conclusions several previous studies used pcr-rflp to genotype hbv; however, we showed the high risk to obtain atypical profiles, especially in advanced stages of chronic infection, with as results difficulties to genotype the virus. these profiles resulted from the accumulation of mutations during natural course of infection resulting in a modification in restriction sites for enzymes. so, we ...

Background & AimsHBsAg proteins are useful to identify HBV inactive carriers (ICs), but data on chronic hepatitis D (CHD) scarce. This study aimed describe HBsAg composition in CHD, its changes during the evolution and potential association with clinical outcomes. Besides, we assess of across different genotype validate previous results an independent cohort.MethodsQuantitative (qHBsAg), medium...

OBJECTIVE We evaluated the influence of hepatitis B virus (HBV) genotype on the course of disease in patients coinfected with HBV and hepatitis delta virus (HDV). METHODS We evaluated HBV genotypes in 190 patients, 140 of whom had chronic HBV monoinfection and 50 of whom had chronic HBV-HDV coinfection. Real-time polymerase chain reactions for the amplification of HBV DNA and HDV RNA were dev...

objectives the present study aimed to evaluate the genotypes and prevalence of mutations in a segment of s and rt gene in hbv isolates in southern khorasan, iran. methods this was a population-based study comprising 5,235 randomized samples for hbv screening. a nested-polymerase chain reaction (pcr) test was followed by direct sequencing, and the sequences blast with present sequences of ncbi d...

conclusions the mutation ratio difference between genotypes b and c in children was higher than that of adults and several combined mutations were exclusively detected in children with chronic hbv genotype c infection associated with higher viral load. objectives the aim of this study was to assess the mutation profiles of bcp and precore regions in different hbv genotypes in chronically infect...

Vietnam is one of the countries with a high rate of hepatitis B virus (HBV) infection, but there are only a few reports about relation of HBV genotypes and mutations to clinical course in Northern Vietnam. The characteristics of HBV and its relationship to clinical outcome in patients from Northern Vietnam were analyzed. Serum samples were collected from 183 HBV-infected Vietnamese patients. Th...

Pathogenic and therapeutic differences among hepatitis B virus (HBV) genotypes have been documented. However, the association of virological characteristics with clinical differences among HBV genotypes remains unclear. We therefore studied the clinical and virological characteristics of Taiwanese volunteer blood donors infected with HBV genotypes B and C. HBV genotypes were determined in 300 c...

OBJECTIVE We estimated the prevalence and identified the resistance pattern of HBV genotypes H and G in HBV monoinfected and HIV co-infected patients. MATERIAL AND METHODS A cross-sectional prevalence and analytic study were performed in chronic hepatitis B patients at the Hospital de Infectología, La Raza National Medical Center in Mexico City. Chronic HBV monoinfected and HIV co-infected pa...

Vaccines based on hepatitis B virus (HBV) genotype A have been used worldwide for immunoprophylaxis and are thought to prevent infections by non-A HBV strains effectively, whereas, vaccines generated from genotype C have been used in several Asian countries, including Japan and Korea, where HBV genotype C is prevalent. However, acute hepatitis B caused by HBV genotype A infection has been incre...