title: Volunteer blood donors with antibody to hepatitis C virus: clinical, biochemical, virologic, and histologic features. The Hepatitis C Study Group.
abstract: OBJECTIVE
  To assess the clinical significance of antibody to hepatitis C virus (anti-HCV) in volunteer blood donors.
  
  
  METHODS
  Prospective cohort study.
  
  
  METHODS
  National Institutes of Health Clinical Center, a tertiary referral research hospital.
  
  
  METHODS
  60 anti-HCV-positive blood donors, divided into three groups of 20 persons each: Group I had normal alanine aminotransferase levels, group II had levels elevated to values less than twice the normal range, and group III had levels elevated to values greater than twice the normal range.
  
  
  METHODS
  Medical history, results of laboratory and virologic testing, and percutaneous liver biopsy findings.
  
  
  RESULTS
  Participants with normal alanine aminotransferase levels were older and more often female than those with abnormal levels. The source of infection, duration of disease, symptom score, and amount of alcohol consumed were similar in the three groups. Hepatitis C virus RNA was detectable in 85% of participants, more commonly in the groups with elevated alanine aminotransferase levels (95%) than in the group with normal levels (65%); however, titers were similar in all groups. Examination of liver biopsy specimens showed chronic hepatitis in 54 participants (90%) and cirrhosis in 1 participant. The only normal liver biopsy specimens (n = 3) were those from participants who were HCV RNA negative and had normal alanine aminotransferase levels.
  
  
  CONCLUSIONS
  Most blood donors with anti-HCV have chronic hepatitis C regardless of their serum alanine aminotransferase levels. Donors with normal alanine aminotransferase levels and no HCV RNA in their serum generally have normal liver histologic findings or minimal changes and have probably recovered from HCV infection.
authors.affiliation: National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: A O
authors.initials: AO
authors.lastname: Shakil
authors.forename: C
authors.initials: C
authors.lastname: Conry-Cantilena
authors.forename: H J
authors.initials: HJ
authors.lastname: Alter
authors.forename: P
authors.initials: P
authors.lastname: Hayashi
authors.forename: D E
authors.initials: DE
authors.lastname: Kleiner
authors.forename: V
authors.initials: V
authors.lastname: Tedeschi
authors.forename: K
authors.initials: K
authors.lastname: Krawczynski
authors.forename: H S
authors.initials: HS
authors.lastname: Conjeevaram
authors.forename: R
authors.initials: R
authors.lastname: Sallie
authors.forename: A M
authors.initials: AM
authors.lastname: Di Bisceglie
mesh_terms: D000328:Adult; D000368:Aged; D000410:Alanine Transaminase / Q000097:blood; D000428:Alcohol Drinking; D000956:Antigens, Viral / Q000032:analysis; D001219:Aspartate Aminotransferases / Q000097:blood; D001782:Blood Donors; D002908:Chronic Disease; D005260:Female; D016174:Hepacivirus / Q000302:isolation & purification*; D006508:Hepatitis Antibodies / Q000097:blood*; D006526:Hepatitis C / Q000201:enzymology / Q000473:pathology / Q000821:virology; D018937:Hepatitis C Antibodies; D006801:Humans; D008099:Liver / Q000821:virology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012367:RNA, Viral / Q000097:blood
chemical_list: D000956:Antigens, Viral; D006508:Hepatitis Antibodies; D018937:Hepatitis C Antibodies; D012367:RNA, Viral; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase