Tumor necrosis factor-alpha promoter -308 A/G polymorphism and rheumatoid arthritis susceptibility: a metaanalysis.

Abstract excerpt

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...

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