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Blanco-Kelly F.,Hospital Clinico San Carlos | Matesanz F.,Instituto Parasitologa y Biomedicina Lopez Neyra | Alcina A.,Instituto Parasitologa y Biomedicina Lopez Neyra | Teruel M.,Instituto Parasitologa y Biomedicina Lopez Neyra | And 13 more authors.
PLoS ONE | Year: 2010

Background: A functional polymorphism located at - 1 from the start codon of the CD40 gene, rs1883832, was previously reported to disrupt a Kozak sequence essential for translation. It has been consistently associated with Graves' disease risk in populations of different ethnicity and genetic proxies of this variant evaluated in genome-wide association studies have shown evidence of an effect in rheumatoid arthritis and multiple sclerosis (MS) susceptibility. However, the protective allele associated with Graves' disease or rheumatoid arthritis has shown a risk role in MS, an effect that we aimed to replicate in the present work. We hypothesized that this functional polymorphism might also show an association with other complex autoimmune condition such as inflammatory bowel disease, given the CD40 overexpression previously observed in Crohn's disease (CD) lesions. Methodology: Genotyping of rs1883832C

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