• Young Ho Lee, Sang-Cheol Bae, Sung Jae Choi, Jong Dae Ji, and Gwan Gyu Song.
• Division of Rheumatology, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 126-1, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-705, Korea. lyhcgh@korea.ac.kr
• Mol. Biol. Rep. 2012 Dec 1; 39 (12): 10671-9.

AbstractThe aim of this study was to explore whether FAS -670 A/G and -1,377 G/A polymorphisms confer susceptibility to autoimmune rheumatic diseases. A meta-analysis was conducted on the associations between the FAS -670 A/G and -1,377 G/A polymorphisms and autoimmune rheumatic diseases using allele contrast, a recessive model, a dominant model, and an additive model. Thirteen articles with 21 comparison studies (16 on FAS -670 A/G and 5 on -1,377 G/A polymorphisms) including systemic lupus erythematosus (SLE), four systemic sclerosis, four Sjogren's syndrome, three rheumatoid arthritis (RA), one juvenile idiopathic arthritis, and one spondyloarthropathy were available for the meta-analysis. Meta-analysis revealed an association between rheumatic diseases and the FAS -670 A/G polymorphism in the dominant model (odds ratio [OR] = 0.761, 95 % confidence interval [CI] = 0.621-0.932, p = 0.008]. Stratification by ethnicity indicated an association between the FAS -670 G allele carrier and rheumatic diseases in Asian (OR = 0.569, 95 % CI = 0.409-0.791, p = 0.001). Furthermore, stratification by disease indicated an association between the FAS -670 G allele carrier and SLE and RA (OR = 0.578, 95 % CI = 0.358-0.934, p = 0.025; OR = 0.609, 95 % CI = 0.398-0.934, p = 0.023, respectively). The FAS -670 G allele was negatively associated with SLE susceptibility. Meta-analysis of the FAS -1,377 G/A polymorphism stratified by disease showed an association between the FAS -1,377 A allele and SLE (OR = 0.783, 95 % CI = 0.613-0.997, p = 0.047). Meta-analyses using the dominant model also showed a significant association in SLE (OR = 0.712, 95 % CI = 0.528-0.961, p = 0.027). This meta-analysis demonstrates that the FAS -670 A/G polymorphism confers susceptibility to rheumatic diseases in Asians and SLE and RA, and the FAS -1,377 G/A polymorphism is associated with SLE susceptibility.

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