title: [Diagnostic significance of type IV collagen and hyaluronic acid in the serum of patients with chronic hepatitis C for staging hepatic fibrosis].
abstract: OBJECTIVE
  To evaluate diagnostic value of serologic fibrosis markers (hyaluronic acid--HA and type IV collagen C-IV) in patients with chronic hepatitis C (CHC) and hepatic cirrhosis (HC).
  
  
  METHODS
  HA and C-IV were measured in 88 CHC patients with fibrosis stage 1 (n = 63) and 3 (n = 25), 13 patients with acute hepatitis C (AHC), 28 patients with hepatic cirrhosis (HC), 19 patients with pulmonary fibrosis (PF). The control group consisted of 32 healthy subjects.
  
  
  RESULTS
  HA concentrations in the serum of CHC patients with mild to severe inflammation and fibrosis (F1 and F3) were normal (100 ng/ml). For HC diagnosis, HA test proved highly sensitive and specific (in HA 100 ng/ml sensitivity was 100%, specificity 84.6%), but this method cannot stage hepatic fibrosis. HA test was inferior to C-IV test. A mean C-IV concentration in the serum of CHC patients at the stage of marked fibrosis (F3) is significantly higher than in F1, in HC (A) patients higher than in patients with CHC F3.
  
  
  CONCLUSIONS
  It is shown than concentration of C-IV above 196 ng/ml can differentiate fibrosis stage 1 from stage 3 with specificity 58.7 and sensitivity 88%.
authors.forename: N D
authors.initials: ND
authors.lastname: Iushchuk
authors.forename: O O
authors.initials: OO
authors.lastname: Znoĭko
authors.forename: N Kh
authors.initials: NKh
authors.lastname: Safiullina
authors.forename: K R
authors.initials: KR
authors.lastname: Dudina
authors.forename: E I
authors.initials: EI
authors.lastname: Kelli
authors.forename: E A
authors.initials: EA
authors.lastname: Klimova
authors.forename: V I
authors.initials: VI
authors.lastname: Kashirin
authors.forename: D M
authors.initials: DM
authors.lastname: Braginskiĭ
authors.forename: N E
authors.initials: NE
authors.lastname: Kushlinskiĭ
authors.forename: N V
authors.initials: NV
authors.lastname: Liubimova
authors.forename: A Iu
authors.initials: AIu
authors.lastname: Vasilev
authors.forename: T V
authors.initials: TV
authors.lastname: Penkina
authors.forename: A G
authors.initials: AG
authors.lastname: Danilin
mesh_terms: D000328:Adult; D000368:Aged; D024141:Collagen Type IV / Q000097:blood*; D005260:Female; D019698:Hepatitis C, Chronic / Q000097:blood*; D006801:Humans; D006820:Hyaluronic Acid / Q000097:blood*; D008103:Liver Cirrhosis / Q000097:blood* / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index
chemical_list: D024141:Collagen Type IV; D006820:Hyaluronic Acid