Association between polymorphism in TRAF1/C5 gene and risk of rheumatoid arthritis: a meta-analysis
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Rheumatoid arthritis (RA) is a common chronic inflammatory autoimmune disease. Single nucleotide polymorphisms of tumor necrosis factor-receptor associated factor 1/complement component 5 (TRAF1/C5) gene are suspected to be associated with the risk of RA. This meta-analysis was performed to study the relationship between the polymorphism rs10818488 in TRAF1/C5 gene with RA. We retrieved the relevant articles from PubMed, EMBASE and the China National Knowledge Infrastructure databases. Odd ratios were calculated to assess the association between TRAF1/C5 rs10818488 polymorphism and RA risk. Meta-analyses were performed on the total data set and separately for the major ethnic groups and RF and ACAP status. All analyses were performed using the Stata software. Eight articles were included in the present analysis. Meta-analysis showed a weak association between TRAF1/C5 rs10818488 polymorphism and RA in all subjects (OR = 1.13, 95 % CI = 1.01–1.27, P heterogeneity < 0.001). Stratified analyses indicated that the TRAF1/C5 rs10818488 A allele was significantly associated with RA in Caucasians (OR = 1.29, 95 %CI = 1.14–1.47, P heterogeneity = 0.026), Asians (OR = 0.92, 95 %CI = 0.86–0.99, P heterogeneity = 0.378) and Africans (OR = 1.56, 95 %CI = 1.23–1.98, P heterogeneity = 0.876), also significantly in positive ACPA and positive RF patients versus controls (ORs were 1.20 and 1.25, 95 %CIs were 1.08–1.33 and 1.14–1.37, P values for heterogeneity were 0.215 and 0.133, respectively). Genetic polymorphism rs10818488 in TRAF1/C5 gene might be associated with RA susceptibility.
KeywordsRheumatiod arthritis Tumor necrosis factor-receptor associated factor 1/complement component 5 Single nucleotide polymorphism Meta-analysis
The authors declare that they have no competing interests.
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