TY - JOUR T1 - Influence of IL2RA rs2104286 Polymorphism in the Risk of Biopsy-proven Giant Cell Arteritis JF - The Journal of Rheumatology JO - J Rheumatol DO - 10.3899/jrheum.100388 SP - jrheum.100388 AU - Luis Rodríguez-Rodríguez AU - Santos Castañeda AU - Tomás R. Vázquez-Rodríguez AU - Inmaculada C. Morado AU - Beatriz Marí-Alfonso AU - Carmen Gómez-Vaquero AU - José A. Miranda-Filloy AU - Norberto Ortego-Centeno AU - Javier Narvaez AU - Ricardo Blanco AU - Benjamín Fernández-Gutiérrez AU - Javier Martín AU - Miguel A. González-Gay Y1 - 2010/09/01 UR - http://www.jrheum.org/content/early/2010/08/29/jrheum.100388.abstract N2 - Objective To assess the influence of the IL2RA rs2104286 A>G polymorphism on susceptibility to and clinical spectrum of manifestations of biopsy-proven giant cell arteritis (GCA). Methods Our study included 318 patients with biopsy-proven GCA. DNA from patients and healthy controls was obtained from peripheral blood. Samples were genotyped for the IL2RA rs2104286A>G polymorphism using a predesigned TaqMan allele discrimination assay and by PCR amplification. Results Although GCA patients showed a higher frequency of the minor allele homozygote of IL2RA rs2104286 (GG) compared to controls (5.1% vs 2.8%, respectively; p = 0.06, odds ratio 1.84, 95% confidence interval 0.91–3.70), the allele distribution showed no significant differences between GCA patients and controls. Stratification of GCA patients according to sex or polymyalgia rheumatica, jaw claudication, visual ischemic manifestations, or other severe ischemic complications did not yield significant differences in the allele or genotype frequencies of the IL2RA rs2104286 polymorphism. Conclusion IL2RA rs2104286 polymorphism does not appear to be a genetic risk factor for susceptibility to biopsy-proven GCA. Also, this polymorphism does not seem to be implicated in the clinical expression of this vasculitis. ER -