| incidence of hepatitis b carriers in calcutta, west bengal. | a survey of hepatitis b virus (hbv) carrier state of paid and voluntary blood donors in and around the city of calcutta has been carried out. hbv carrier state is higher in paid donors (5.84%) than voluntary donors (1.79%). the nutritional status of paid donors as assessed by serum protein, immunoglobulin and cholesterol shows evidence of malnutrition and chronic infection. the socio-economic status of the prospective blood donors has an important bearing on the persistence of carrier state for ... | 1989 | 2808283 |
| prevalence of hepatitis b infection in the general population: a rural community based study. | available seroprevalence studies of hepatitis b in indian population has limitations. a community based door to door epidemiological study was conducted between december 1997 and january 1988 to look for the dynamics of hepatitis b exposure in a single village of west bengal. | 1999 | 10484893 |
| nucleic acid sequence analysis of basal core promoter/precore/core region of hepatitis b virus isolated from chronic carriers of the virus from kolkata, eastern india: low frequency of mutation in the precore region. | the aim of the present study was to characterize the predominant hepatitis b virus (hbv) strains and their molecular variants present in the hbv isolates of the different genotypes found among the chronic carriers of the virus in our community. | 2005 | 16024943 |
| community-based epidemiology of hepatitis b virus infection in west bengal, india: prevalence of hepatitis b e antigen-negative infection and associated viral variants. | there is a paucity of population-based epidemiological information regarding hepatitis b virus (hbv) infection in india. the present study was planned to outline the magnitude and pattern of hbv infection, hepatitis b e antigen (hbeag)-negative infection and the associated viral mutants in india. | 2005 | 16246191 |
| phylogenetic relatedness and genetic diversity of hepatitis b virus isolates in eastern india. | hepatitis b virus (hbv) has been classified into eight genotypes, and several subgenotypes, distinctly distributed geographically. the genotypes a and d were previously reported to be predominant in india. recent studies indicated evidence of circulation of genotype c in eastern part of india. with the aim to confirm the phylogenetic relation and molecular genetic characteristics of the hbv circulating in kolkata, the most populous city in eastern india, 11 strains were isolated and the complete ... | 2006 | 16847957 |
| distribution of hepatitis b virus genotypes: phylogenetic analysis and virological characteristics of genotype c circulating among hbv carriers in kolkata, eastern india. | to evaluate the genotype distribution of hepatitis b virus (hbv) in eastern india and to clarify the phylogenetic origin and virological characteristics of the recently identified genotype c in this region. | 2006 | 17009394 |
| g1862t mutation among hepatitis b virus-infected individuals: association with viral genotypes and disease outcome in kolkata, eastern india. | to study the prevalence of g1862t mutation in hepatitis b virus (hbv) isolates among eastern indian patients and its relationship with genotypes, hbeag status and disease manifestation. | 2007 | 17259736 |
| significant increase in hbv, hcv, hiv and syphilis infections among blood donors in west bengal, eastern india 2004-2005: exploratory screening reveals high frequency of occult hbv infection. | to evaluate the prevalence of markers of hepatitis b virus (hbv) and hepatitis c virus (hcv) and human immunodeficiency virus (hiv) among blood donors in kolkata, eastern india for two consecutive years and to conduct a pilot study to explore the presence of hbv dna among hepatitis b surface antigen (hbsag) negative but anti-hbc positive blood donors. | 2007 | 17659734 |
| aetiology, clinical profile and prognostic indicators for children with acute liver failure admitted in a teaching hospital in kolkata. | to estimate the prevalence of hepatotropic viruses in the causation of acute liver failure in children admitted to a tertiary hospital in kolkata. | 2007 | 18384007 |
| subgenotypes of hepatitis b virus genotype d (d1, d2, d3 and d5) in india: differential pattern of mutations, liver injury and occult hbv infection. | hepatitis b genotype d (hbv/d) is the most widespread genotype and exists as at least five subgenotypes (hbv/d1-d5). however, little is known about the association of virological characteristics with clinical differences among hbv/d subgenotypes. to investigate the virological characteristics of these subgenotypes and their clinical implications, we selected a cohort of 109 genotype d infected individuals from the state of west bengal, india, including 68 hbsag positive patients and 41 with occu ... | 2009 | 19457142 |
| nonobese population in a developing country has a high prevalence of nonalcoholic fatty liver and significant liver disease. | there is a paucity of community-based epidemiological data on nonalcoholic fatty liver (nafl) among nonaffluent populations in developing countries. available studies are radiological and/or biochemical and lack histological assessment, limiting their strength. we conducted a prospective epidemiological study comprising a 1:3 subsample of all adult (>18 years) inhabitants of a rural administrative unit of west bengal, india. subjects positive for hepatitis b virus and/or hepatitis c virus infect ... | 2010 | 20222092 |
| recent pattern of co-infection amongst hiv seropositive individuals in tertiary care hospital, kolkata. | opportunistic infections (ois) and co-infections are the major cause of deaths amongst hiv infected individuals and this mostly depends upon the risk factors, type of exposure and geographic region. the commonest types of infections reported are tuberculosis, chronic diarrhoea, oral candidiasis, herpes simplex virus-2, cytomegalovirus, hepatitis b virus and hepatitis c virus. due to the scarcity of ois data available from this region, we had designed a study to determine the frequency of differe ... | 2011 | 21396133 |
| prevalence of hepatitis e virus infection in west bengal, india: a hospital-based study. | india is an endemic zone for hepatitis e virus (hev), which is associated with both epidemic and sporadic infections. in west bengal, only two hepatitis e outbreaks have been studied to date. however, sporadic cases of hev infection also occur during inter-epidemic periods. the aim of this hospital-based study was to detect the prevalence of hev infection in patients with acute sporadic hepatitis in west bengal, india. blood samples and clinical information were collected from 285 patients of bo ... | 2014 | 24821066 |
| characterization of the occult hepatitis b virus variants circulating among the blood donors from eastern india. | a previous study from west bengal documented very high rate of occult hbv infection (obi) among the hbsag negative blood donors. this study was aimed to characterize the obi strains circulating among the blood donors and to estimate the risk associated with the prevailing viral variants/mutants. blood samples from 2195 voluntary blood donors were included in the study. hbsag, hbeag, anti-hbc, and anti-hbs statuses of the samples were done by elisa based detection. pcr amplification and sequencin ... | 2013 | 24302857 |