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IL28B and PNPLA3 Polymorphisms Affect Histological Liver Damage in Patients with Non-alcoholic Fatty Liver Disease.
MedLine Citation:
PMID:  22314430     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND AND AIMS: Genetic background may affect liver damage in patients with non-alcoholic fatty liver disease (NAFLD). The main outcomes of the study were to assess whether IL28B rs12979860 and rs8099917 polymorphisms, together with PNPLA3 rs738409 C>G polymorphism, are associated with lobular inflammation and fibrosis, in NAFLD patients. METHODS: One hundred sixty consecutive NAFLD patients, were assessed by liver biopsy (Kleiner score); anthropometric, and biochemical and metabolic features were included. IL28B rs12979860 C>T, IL28B rs8099917 G>C, and PNPLA3 rs738409 C>G single nucleotide polymorphisms were tested. RESULTS: Seventy-four(46.2%) patients had IL28B rs 12979860 CC polymorphism, compared with 72(45%) and 14(8.8%)with TC and TT variants, respectively. PNPLA3 rs738409 CC polymorphism was present in 47(29.4%) patients, compared with 79(49.4%) and 34(21.3%) with CG and GG variants, respectively. Multivariate logistic regression analysis showed that age (OR 1.043, 95% CI 1.012-1.075, p= 0.007), triglycerides (OR 1.005, 95% CI 1.000-1.010, p= 0.04), hyperuricemia (OR 5.027, 95% CI 1.839-13.742, p= 0.002), IL28B rs 12979860 TT/TC (OR 0.219, 95% CI 0.101-0.472, p< 0.001), and steatosis grade (OR 1.704, 95% CI 1.048-2.773, p= 0.03) were independently linked to moderate-severe lobular inflammation. Finally, IL28B rs 12979860 CC was associated with severe fibrosis (F3-F4) on univariate analysis, even if only older age (OR 1.064, 95% CI 1.026-1.104, p=0.001), high HOMA (OR 1.213, 95% CI 1.068-1.377, p=0.003), and lobular inflammation (OR 3.181, 95%CI 1.438-7.036, p=0.004), remained associated on multivariate logistic regression analysis. CONCLUSIONS: In NAFLD patients, IL28B rs 12979860 CC genotype, together with PNPLA3 rs738409 GG, is associated with the severity of liver damage.
Authors:
Salvatore Petta; Stefania Grimaudo; Calogero Cammà; Daniela Cabibi; Vito Di Marco; Giusalba Licata; Rosaria Maria Pipitone; Antonio Craxì
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-4
Journal Detail:
Title:  Journal of hepatology     Volume:  -     ISSN:  0168-8278     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8503886     Medline TA:  J Hepatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
Sezione di Gastroenterologia, DiBiMIS, University of Palermo, Italy; Cattedra di Anatomia Patologica, University of Palermo, Italy.
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