The TRAF1/C5 region is a risk factor for polyarthritis in juvenile idiopathic arthritis
نویسندگان
چکیده
OBJECTIVE Juvenile idiopathic arthritis (JIA) is a chronic disorder in which both genetic and environmental factors are involved. Recently, we identified the TRAF1/C5 region (located on chromosome 9q33-34) as a risk factor for rheumatoid arthritis (RA) (p(combined) = 1.4 x 10(-8)). In the present study the association of the TRAF1/C5 region with the susceptibility to JIA was investigated. METHODS A case-control association study was performed in 338 Caucasian patients with JIA and 511 healthy individuals. We genotyped the single nucleotide polymorphism rs10818488 as a marker for the TRAF1/C5 region. RESULTS The A allele was associated with the susceptibility to rheumatoid factor-negative polyarthritis with an 11% increase in allele frequency (OR 1.54, 95% CI 1.09 to 2.18; p = 0.012). This association was stronger when combining subtypes with a polyarticular phenotype (OR 1.46, 95% CI 1.12 to 1.90; p = 0.004). In addition, we observed a trend towards an increase in A allele frequency in patients with extended oligoarthritis versus persistent oligoarthritis (49%, 38% respectively); p = 0.055. CONCLUSIONS Apart from being a well replicated risk factor for RA, TRAF1/C5 also appears to be a risk factor for the rheumatoid factor-negative polyarthritis subtype of JIA and, more generally, seems to be associated with subtypes of JIA characterised by a polyarticular course.
منابع مشابه
14.5 Rheumatoid Arthritis susceptibility loci; STAT4, TRAF1/C5 and 6q23 region, are also associated with Juvenile Idiopathic Arthritis
Results Strong evidence for association was seen for both STAT4 (strongest effect rs7574865 OR 1.24 95%CI 1.1–1.4, ptrend = 0.0008) and TRAF1/C5 (strongest effect rs2900180 OR 1.23 95%CI 1.1–1.38, ptrend = 0.0004). The 6q23 region showed weak evidence for association with JIA (rs6920220 OR 1. 17 95% CI 1.01–1.36, ptrend = 0.03). In all cases the associated allele was the same as for RA and the ...
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1. Abe M. Complement activation and inflammation. Rinsho Byori 2006;54:744–56. 2. Plenge RM, Seielstad M, Padyukov L, Lee AT, Remmers EF, Ding B, et al. TRAF1-C5 as a risk locus for rheumatoid arthritis – a genomewide Study. N Engl J Med 2007;357:1199–209. 3. Kurreeman FA, Padyukov L, Marques RB, Schordi SJ, Seddighzadeh M, StoekenRijsbergen G, et al. A candidate gene approach identifies the TR...
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عنوان ژورنال:
دوره 6 شماره
صفحات -
تاریخ انتشار 2008