| frequency of hepatitis b virus e-minus mutants varies among patients from different areas of china. | four hundred forty-six serum samples from hbsag-positive chronic hepatitis b patients were collected from five areas in china (eastern coastal city, shanghai; southwestern inland city, chengdu; mid-inland city, wuhan; southern island city, haikou; and northeastern city, changchun). precore stop codon variants (e-minus mutants) were screened using a rapid method of polymerase chain reaction (pcr) amplification of a precore and partial core gene fragment (nucleotides 1785-2172), followed by dot-bl ... | 1997 | 9021537 |
| hepatitis b and c virus infection among adult women in jilin province, china: an urban-rural comparison in prevalence of infection markers. | twin seroepidemiological surveys on prevalence of hepatitis b and c virus (hbv and hcv, respectively) infection were conducted on 100 adult women in total, 50 each in the provincial capital of changchun and in a farming village in the vicinity in jilin province, northeast china. positivity to three markers on hbv (ie hbsag+, anti-hbs+, and anti-hbc+) was examined by ria methods, and to one on hcv (anti-hcv+) by eia. the results were evaluated in combination with two foregoing studies in shandong ... | 2000 | 11289015 |
| [distribution of hepatitis b virus genotypes in patients with chronic hepatitis b virus infection among 12 cities in china]. | to investigate the distribution of hepatitis b virus (hbv) genotypes in patients with chronic hbv infection among 11 cities of china. | 2007 | 17850692 |
| prevalence and etiology of abnormal liver tests in an adult population in jilin, china. | serum biochemical liver tests (lts) (alanine aminotransferase, aspartate aminotransferase, and gamma glutamyltransferase) and platelet counts are often used to screen for chronic liver disease. we determined the prevalence and etiologies of abnormal lts in an adult population in jilin, china. | 2011 | 21487569 |
| seroprevalence and risk factors for hepatitis b infection in an adult population in northeast china. | background and aim: the prevalence of the hepatitis b virus (hbv) is higher in adults than in children. we determined the seroepidemiology of hbv infection in an adult population in jilin, china, to guide effective preventive measures.methods: a cross-sectional serosurvey was conducted throughout jilin, china. a total of 3833 people was selected and demographic and behavioral information gathered. serum samples were tested for hbv markers and liver enzymes.results: the prevalence of the hepatiti ... | 2011 | 21611114 |
| [comparison of sequences of hepatitis b virus s gene fragment in eight cities of china]. | sequencing and comparative analysis of 52nd to 512th nucleotide of s gene in hepatitis b virus (hbv) were conducted in 43 cases of sero-positive and 52 cases of sero-negative hb from eight cities, including changchun, datong, hangzhou, shenzhen, qingtao, xi'an, kunming and lahsa, to study the relationship between focal variation of hbv s gene and seronegative hb. it was found that sequences of hbv s gene fragment in the same genotype were more conservative, most of its mutation happened randomly ... | 1997 | 9812589 |
| duck hepatitis b virus and liver diseases. | the presence of duck hepatitis b virus in serum was studied in 61 ducks (24 from chi-tung county, china, 20 from changchun, china, and 17 from chiba, japan) with relation to liver disease. none of the 37 ducks from chiba and changchun was positive for duck hepatitis b virus as assayed by electron microscopy, endogenous deoxyribonucleic acid-polymerase activity, and hybridization with duck hepatitis b virus deoxyribonucleic acid. no liver disease was seen in these ducks. in contrast, viruslike pa ... | 1983 | 6190699 |
| urban-rural comparison of hbv and hcv infection prevalence in eastern china. | the present study was initiated to make an urban-rural comparison of the prevalence of cases positive to hepatitis b and c virus (hbv and hcv, respectively) infection markers in densely populated eastern half of china. for this purpose, 10 survey siles were selected, i.e., six sites in urban areas (the city group; beijing, shanghai and four provincial capitals) and four sites in rural areas (the village group; one village each in jilin and shandong provinces, and two villages in shaanxi province ... | 2000 | 11351857 |
| [analysis of related factors for primary hepatic carcinoma caused by chronic hepatitis b and hepatitis c]. | objective: to explore the related factors for primary hepatic carcinoma (phc) caused by chronic hepatitis b (chb) and hepatitis c (chc). methods: according to the principle of cross-sectional study, a cluster random sample method was used, a total of 366 chronic hepatitis patients in hospitals were recruited from three provincial tertiary hospitals in shanxi, henan and jilin between july 2016 and october 2016, respectively. using a self-designed unified questionnaire, face-to-face interviews was ... | 2017 | 28592101 |