title: Tumor necrosis factor polymorphisms and alcoholic liver disease: a HuGE review and meta-analysis.
abstract: The association between alcoholic liver disease (ALD) and tumor necrosis factor-alpha gene (TNFA) polymorphisms has been analyzed in several studies, but results have been conflicting. The main purpose of this study was to integrate previous findings and explore whether these polymorphisms are associated with susceptibility to ALD. The authors surveyed studies on the relation between TNFA gene polymorphisms and ALD by means of an electronic database search. A meta-analysis was conducted in a random-effects model. The association between ALD and the -238G>A or -308G>A polymorphism of the TNFA gene has been analyzed in 11 studies. Concerning the -238G>A polymorphism, the authors found a significant association between possession of the A allele and risk of alcoholic liver cirrhosis (odds ratio = 1.47, 95% confidence interval: 1.05, 2.07). Meta-analysis of the relation between the -308G>A polymorphism and ALD did not show any significant association. Given the limited number of studies and the potential biases, more data are needed to confirm the association described for the -238A allele.
authors.affiliation: Servicio de Medicina Interna II, Hospital Universitario de Salamanca, Salamanca, Spain. migmarmar10@hotmail.com
authors.forename: Miguel
authors.initials: M
authors.lastname: Marcos
authors.forename: Mercedes
authors.initials: M
authors.lastname: Gómez-Munuera
authors.forename: Isabel
authors.initials: I
authors.lastname: Pastor
authors.forename: Rogelio
authors.initials: R
authors.lastname: González-Sarmiento
authors.forename: Francisco-Javier
authors.initials: FJ
authors.lastname: Laso
mesh_terms: D020022:Genetic Predisposition to Disease; D006801:Humans; D008104:Liver Cirrhosis, Alcoholic / Q000235:genetics; D008108:Liver Diseases, Alcoholic / Q000235:genetics*; D011110:Polymorphism, Genetic; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics*
chemical_list: D014409:Tumor Necrosis Factor-alpha