title: Non-invasive assessment of inflammatory activity and fibrosis (grade and stage) in chronic hepatitis C infection.
abstract: BACKGROUND
  Much effort has been expended in finding non-invasive alternatives to percutaneous liver biopsy for assessing the histological extent of liver damage.
  
  
  METHODS
  We have evaluated the relationship between various histological features of liver of biopsies and plasma levels of immunoglobulin G (IgG), procollagen III propeptide (PIIIP) and type-IV collagen (CL-IV) in 109 patients with chronic hepatitis C (HCV) infection.
  
  
  RESULTS
  The serum IgG level was the best single marker for distinguishing chronic persistent hepatitis (CPH) from chronic active hepatitis (CAH). The mean serum levels of PIIIP and CL-IV increased with the progression of liver disease, though the three variables manifested considerable overlap in individual values as markers of CPH, CAH and cirrhosis. The various biochemical markers correlated weakly but significantly to both histological grade and stage of liver disease, as assessed with the scoring system of Knodell. The correlation appeared to be non-specific and to reflect inflammatory activity as well as fibrogenesis.
  
  
  CONCLUSIONS
  Serum levels of PIIIP. CL-IV and IgG are of limited use in predicting the histological grade and stage of liver disease in patients with chronic HCV infection.
authors.affiliation: Dept. of Medicine, University of Lund, Malmö University Hospital, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Verbaan
authors.forename: L
authors.initials: L
authors.lastname: Bondeson
authors.forename: S
authors.initials: S
authors.lastname: Eriksson
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015415:Biomarkers / Q000097:blood; D001706:Biopsy; D002908:Chronic Disease; D003094:Collagen / Q000097:blood*; D018450:Disease Progression; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005355:Fibrosis / Q000097:blood / Q000145:classification / Q000473:pathology; D016174:Hepacivirus / Q000276:immunology; D006526:Hepatitis C / Q000097:blood* / Q000473:pathology; D018937:Hepatitis C Antibodies / Q000032:analysis; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D008099:Liver / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010446:Peptide Fragments / Q000097:blood*; D011347:Procollagen / Q000097:blood*; D012189:Retrospective Studies
chemical_list: D015415:Biomarkers; D018937:Hepatitis C Antibodies; D007074:Immunoglobulin G; D010446:Peptide Fragments; D011347:Procollagen; C041876:procollagen Type III-N-terminal peptide; D003094:Collagen