PMID- 17446901 OWN - NLM STAT- MEDLINE DCOM- 20070802 LR - 20081121 IS - 1523-1747 (Electronic) IS - 0022-202X (Linking) VI - 127 IP - 8 DP - 2007 Aug TI - TNF-alpha gene promoter -238G>A and -308G>A polymorphisms alter risk of psoriasis vulgaris: a meta-analysis. PG - 1886-92 AB - Tumor necrosis factor-alpha (TNF-alpha) is a major proinflammatory cytokine and involved in the etiology of psoriasis. The -238G>A and -308G>A polymorphisms influence the transcription of the TNF-alpha gene and have been implicated in psoriasis risk. However, the results from the published studies on the association between TNF-alpha polymorphisms and psoriasis risk are conflicting. Our meta-analysis of a total of 997 psoriasis cases and 943 control subjects from eight published case-control studies for the -238G>A polymorphism and of 1,156 psoriasis cases and 1,083 control subjects from 10 published case-control studies for the -308G>A polymorphism showed that a significantly increased risk was associated with the variant GA+AA genotypes of -238G>A, compared with the GG genotype (odds ratio (OR) 2.60, 95% confidence interval (95% CI) 1.48-4.56), whereas a significantly reduced psoriasis risk was associated with the variant GA+AA genotypes of the -308G>A compared with the GG genotype (OR 0.57, 95% CI 0.45-0.71). Our findings suggest that TNF-alpha -238G>A and -308G>A polymorphisms might be used as biomarkers for psoriasis risk prediction. A single larger study with thousands of subjects and biochemical and biological characterization is warranted to evaluate further the role of -238G>A and -308G>A polymorphisms and psoriasis risk in a population of various ethnicities. FAU - Li, Chunying AU - Li C AD - PLA Institute of Dermatology, Xijing Hospital, Fourth Military Medical University, Shaanxi, China. FAU - Wang, Gang AU - Wang G FAU - Gao, Ying AU - Gao Y FAU - Liu, Ling AU - Liu L FAU - Gao, Tianwen AU - Gao T LA - eng PT - Journal Article PT - Meta-Analysis PT - Research Support, Non-U.S. Gov't DEP - 20070419 PL - United States TA - J Invest Dermatol JT - The Journal of investigative dermatology JID - 0426720 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Case-Control Studies MH - Genetic Predisposition to Disease MH - Genotype MH - *Nuchal Cord MH - *Promoter Regions, Genetic MH - Psoriasis/etiology/*genetics MH - Risk Factors MH - Tumor Necrosis Factor-alpha/*genetics EDAT- 2007/04/21 09:00 MHDA- 2007/08/03 09:00 CRDT- 2007/04/21 09:00 PHST- 2007/04/21 09:00 [pubmed] PHST- 2007/08/03 09:00 [medline] PHST- 2007/04/21 09:00 [entrez] AID - S0022-202X(15)33529-6 [pii] AID - 10.1038/sj.jid.5700822 [doi] PST - ppublish SO - J Invest Dermatol. 2007 Aug;127(8):1886-92. doi: 10.1038/sj.jid.5700822. Epub 2007 Apr 19.