PMID- 17143972 OWN - NLM STAT- MEDLINE DCOM- 20070306 LR - 20211203 IS - 0315-162X (Print) IS - 0315-162X (Linking) VI - 34 IP - 1 DP - 2007 Jan TI - Tumor necrosis factor-alpha promoter -308 A/G polymorphism and rheumatoid arthritis susceptibility: a metaanalysis. PG - 43-9 AB - OBJECTIVE: Tumor necrosis factor-alpha (TNF-alpha) promoter -308 A/G polymorphism has been reported to be associated with rheumatoid arthritis (RA) with inconsistent results. We investigated whether TNF-alpha -308 A/G polymorphism confers susceptibility to RA. METHODS: We conducted a random effect metaanalysis on the association of genotypes A/A (recessive effect), A/A + A/G (dominant effect), A allele, and A/A vs G/G genotypes of the TNF-alpha -308 polymorphisms with RA overall and within different ethnic populations. RESULTS: Fourteen studies, 10 of Europeans, 3 of Latin Americans, and one Asian, were included in this metaanalysis. An association between RA and the TNF-alpha -308 A allele was not found in the overall population (OR 1.005, 95% CI 0.715-1.412, p = 0.976). However, stratification by ethnicity indicated that the TNF-alpha A allele was significantly associated with RA in Latin Americans (OR 2.004, 95% CI 1.158-3.467, p = 0.013). Conversely, there was no association detected for the TNF-alpha A allele with RA patients from the European samples (OR 0.911, 95% CI 0.684-1.212, p = 0.520). The OR for the A/A + A/G genotype, the A/A genotypes, and the A/A vs G/G genotypes in samples overall and in each ethnic group showed a similar trend to those for the TNF-alpha A allele. CONCLUSION: This metaanalysis demonstrates that the TNF-alpha -308 A/G polymorphism may represent a significant risk factor for RA in Latin Americans, but not in Europeans. FAU - Lee, Young Ho AU - Lee YH AD - Division of Rheumatology, Department of Internal Medicine, Korea University Medical Center, College of Medicine, Korea University, Seoul, Korea. lyhcgh@korea.ac.kr FAU - Ji, Jong Dae AU - Ji JD FAU - Song, Gwan Gyu AU - Song GG LA - eng PT - Journal Article PT - Meta-Analysis DEP - 20061115 PL - Canada TA - J Rheumatol JT - The Journal of rheumatology JID - 7501984 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Alleles MH - Arthritis, Rheumatoid/*genetics MH - *Genetic Predisposition to Disease MH - Genotype MH - Hispanic or Latino/ethnology/*genetics MH - Humans MH - *Polymorphism, Single Nucleotide MH - Promoter Regions, Genetic/*genetics MH - Risk Factors MH - Tumor Necrosis Factor-alpha/*genetics EDAT- 2006/12/05 09:00 MHDA- 2007/03/07 09:00 CRDT- 2006/12/05 09:00 PHST- 2006/12/05 09:00 [pubmed] PHST- 2007/03/07 09:00 [medline] PHST- 2006/12/05 09:00 [entrez] AID - 06/13/122 [pii] PST - ppublish SO - J Rheumatol. 2007 Jan;34(1):43-9. Epub 2006 Nov 15.