title: Insulin resistance is associated with liver fibrosis in non-diabetic chronic hepatitis C patients.
abstract: OBJECTIVE
  Liver steatosis is a frequent finding in chronic hepatitis C. An association has been suggested between steatosis and fibrosis progression rate, but the pathogenetic mechanisms linking fatty infiltration and collagen deposition are unknown.
  
  
  METHODS
  We measured the levels of insulin resistance (as HOMA score) and leptin in 221 non-diabetic chronic hepatitis C patients, to assess their impact on liver steatosis and fibrosis, relative to other factors, using a multivariable logistic regression.
  
  
  RESULTS
  When all 221 patients were considered, steatosis was associated with excessive alcohol intake, genotype 3, and serum HCV RNA level, whereas fibrosis was associated with HOMA score and age. In 152 patients infected with genotype non-3, steatosis was associated with alcohol abuse and HCV RNA level, and fibrosis with HOMA score and age. In the 69 patients with genotype 3, steatosis and fibrosis were associated with each other. The association between fibrosis and HOMA score held also when 22 obese patients were excluded from the analysis. Levels of insulin resistance were not correlated with the presence of steatosis.
  
  
  CONCLUSIONS
  Thus, insulin resistance (but not leptin) may play a role in fibrogenesis in chronic hepatitis C patients infected with genotype non-3.
authors.affiliation: Division of Gastroenterology and Hepatology, University Hospital, Geneva, Switzerland.
authors.forename: Alba
authors.initials: A
authors.lastname: Muzzi
authors.forename: Gioacchino
authors.initials: G
authors.lastname: Leandro
authors.forename: Laura
authors.initials: L
authors.lastname: Rubbia-Brandt
authors.forename: Richard
authors.initials: R
authors.lastname: James
authors.forename: Olivia
authors.initials: O
authors.lastname: Keiser
authors.forename: Raffaele
authors.initials: R
authors.lastname: Malinverni
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Dufour
authors.forename: Beat
authors.initials: B
authors.lastname: Helbling
authors.forename: Antoine
authors.initials: A
authors.lastname: Hadengue
authors.forename: Jean-Jacques
authors.initials: JJ
authors.lastname: Gonvers
authors.forename: Beat
authors.initials: B
authors.lastname: Müllhaupt
authors.forename: Andreas
authors.initials: A
authors.lastname: Cerny
authors.forename: Mario U
authors.initials: MU
authors.lastname: Mondelli
authors.forename: Farncesco
authors.initials: F
authors.lastname: Negro
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D019698:Hepatitis C, Chronic / Q000150:complications*; D006801:Humans; D007333:Insulin Resistance; D008103:Liver Cirrhosis / Q000209:etiology*; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis