title: [Correlations between preS1-antigen, HBV-DNA and HBV serum markers in patients with chronic hepatitis B].
abstract: OBJECTIVE
  To study the correlations between preS1 antigen, HBV-DNA and hepatitis B virus (HBV) serum markers in patients with chronic hepatitis B.
  
  
  METHODS
  The HBV markers, preS1 antigen and HBV-DNA were determined using enzyme- linked immunosorbent assay and quantitative PCR in 1158 patients with chronic hepatitis B.
  
  
  RESULTS
  In these patients, the HBV-DNA positivity rate was 68.9%, significantly higher than preS1 antigen positivity (54.8%, chi2=53.24, P<0.005). The positivity rates of both HBV-DNA and PreS1-antigen were significantly higher in HBeAg-positive patients than in HBeAg-negative patients (P<0.005). The coincident rates of preS1-antigen and HBeAg with HBV-DNA were 56.9% and 63.3%, respectively. PreS1 antigen had higher sensitivity but lower specificity than HBeAg. The detection rates of preS1 antigen and HBeAg increased with the level of HBV-DNA, and preS1 antigen positivity was higher than that of HBeAg in patients with low HBV-DNA levels.
  
  
  CONCLUSIONS
  Detection of HBV serum markers along with preS1 antigen and HBV-DNA may help assess the status of viral replication and therapeutic efficacy in patients with chronic hepatitis B. PreS1 antigen may serve as an auxiliary indicator in HBeAg-negative cases or when HBV-DNA detection is impossible.
authors.affiliation: Department of Clinical Laboratory, Guangdong Provincial People's Hospital, Guangzhou 510080, China. jzhouhui@126.com
authors.forename: Hui
authors.initials: H
authors.lastname: Zhou
authors.forename: Chu-wen
authors.initials: CW
authors.lastname: Jiang
authors.forename: Jing-lin
authors.initials: JL
authors.lastname: Qian
authors.forename: Shi-jian
authors.initials: SJ
authors.lastname: Li
authors.forename: Jie-ling
authors.initials: JL
authors.lastname: Liang
authors.forename: Xue-fu
authors.initials: XF
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D004279:DNA, Viral / Q000097:blood*; D005260:Female; D006514:Hepatitis B Surface Antigens / Q000097:blood*; D006513:Hepatitis B e Antigens / Q000097:blood; D006515:Hepatitis B virus / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification*; D019694:Hepatitis B, Chronic / Q000097:blood / Q000276:immunology / Q000821:virology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011498:Protein Precursors / Q000097:blood*; D014779:Virus Replication / Q000235:genetics; D055815:Young Adult
chemical_list: D004279:DNA, Viral; D006514:Hepatitis B Surface Antigens; D006513:Hepatitis B e Antigens; D011498:Protein Precursors; C050806:presurface protein 1, hepatitis B surface antigen