title: Hepatitis B virus genotypes and extrahepatic manifestations.
abstract: OBJECTIVE
  This study aimed at correlating the presence of extrahepatic manifestations with hepatitis B virus (HBV) genotypes in patients with chronic HBV infection.
  
  
  METHODS
  This was a national (France), multicenter, retrospective, cross-sectional study. HBV genotypes were determined in 190 patients HBsAg-positive for at least 6 months and documented before any treatment.
  
  
  RESULTS
  Patients were aged 42+/-15 years and mainly male (77%). Alcohol intake was high in 6% of them, ALT elevated in 73%; 27% were cirrhotic. All HBV genotypes were found, mainly A (24%), D (29%), C (11%), and E (10%). Thirty (16%) patients had clinical extrahepatic manifestations, mainly sensory-motor deficiency, sicca syndrome, myalgia, glomerulonephritis, and arthralgia-arthritis. Their presence was not related to any epidemiologic, viral (including genotypes) or hepatic factor, but to a higher platelet count (P=0.004). Twenty-nine (15%) patients had biological extrahepatic manifestations, mainly anti-smooth muscle, antinuclear, and anti-nucleosome antibodies. Their presence was related only to anti-HBe antibodies positivity (P=0.007) or elevated platelet count (P=0.003). Carrying precore mutant HBV increased by 2.8 folds the risk to have at least one extrahepatic biological manifestation.
  
  
  CONCLUSIONS
  No relationships between HBV genotypes and the presence of extrahepatic manifestations were evidenced in patients with chronic HBV infection.
authors.affiliation: Department of Internal Medicine, Hôpital La Pitié-Salpêtrière, 83 Boulevard de l'Hôpital, 75651 Paris Cedex 13, France. patrice.cacoub@psl.ap-hop-paris.fr
authors.forename: Patrice
authors.initials: P
authors.lastname: Cacoub
authors.forename: David
authors.initials: D
authors.lastname: Saadoun
authors.forename: Marc
authors.initials: M
authors.lastname: Bourlière
authors.forename: Hacene
authors.initials: H
authors.lastname: Khiri
authors.forename: Agnes
authors.initials: A
authors.lastname: Martineau
authors.forename: Yves
authors.initials: Y
authors.lastname: Benhamou
authors.forename: Marina
authors.initials: M
authors.lastname: Varastet
authors.forename: Stanislas
authors.initials: S
authors.lastname: Pol
authors.forename: Vincent
authors.initials: V
authors.lastname: Thibault
authors.forename: Michel
authors.initials: M
authors.lastname: Rotily
authors.forename: Philippe
authors.initials: P
authors.lastname: Halfon
mesh_terms: D000293:Adolescent; D000328:Adult; D003430:Cross-Sectional Studies; D005602:France; D005838:Genotype; D006515:Hepatitis B virus / Q000235:genetics* / Q000378:metabolism; D019694:Hepatitis B, Chronic / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013223:Statistics as Topic