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STEFANIA GRIMAUDO

Glucokinase Regulatory Protein Gene Polymorphism Affects Liver Fibrosis in Non-Alcoholic Fatty Liver Disease

  • Autori: Petta, S.; Miele, L.; Bugianesi, E.; Camma', C.; Rosso, C.; Boccia, S.; Cabibi, D.; DI MARCO, V.; Grimaudo, S.; Grieco, A.; Pipitone, R.; Marchesini, G.; Craxi, A.
  • Anno di pubblicazione: 2014
  • Tipologia: Articolo in rivista (Articolo in rivista)
  • Parole Chiave: NAFLD, GCKR
  • OA Link: http://hdl.handle.net/10447/88323

Abstract

Background and Aims: Variant in glucokinase regulatory protein (GCKR), associated with lipid and glucose traits, has been suggested to affect fatty liver infiltration. We aimed to assess whether GCKR rs780094 C→T SNP influences the expression of steatosis, lobular inflammation and fibrosis in NAFLD patients, after correction for PNPLA3 genotype. Methods: In 366 consecutive NAFLD patients (197 from Sicily, and 169 from center/northern Italy), we assessed anthropometric, biochemical and metabolic features; liver biopsy was scored according to Kleiner. PNPLA3 rs738409 C>G and GCKR rs780094 C>T single nucleotide polymorphisms were also assessed. Results: At multivariate logistic regression analysis in the entire NAFLD cohort, the presence of significant liver fibrosis (>F1) was independently linked to high HOMA (OR 1.12, 95% CI 1.01-1.23, p = 0.02), NAFLD activity score ≥5 (OR 4.09, 95% CI 2.45-6.81, p<0.001), and GCKR C>T SNP (OR 2.06, 95% CI 1.43-2.98, p<0.001). Similar results were observed considering separately the two different NAFLD cohorts. GCKR C>T SNP was also associated with higher serum triglycerides (ANOVA, p = 0.02) in the entire cohort. Conclusions: In patients with NAFLD, GCKR rs780094 C>T is associated with the severity of liver fibrosis and with higher serum triglyceride levels