Abstract
Objective: To identify new genetic associations with juvenile and adult dermatomyositis (DM). Methods: We performed a genome-wide association study (GWAS) of adult and juvenile DM patients of European ancestry (n = 1,178) and controls (n = 4,724). To assess genetic overlap with other autoimmune disorders, we examined whether 141 single-nucleotide polymorphisms (SNPs) outside the major histocompatibility complex (MHC) locus, and previously associated with autoimmune diseases, predispose to DM. Results: Compared to controls, patients with DM had a strong signal in the MHC region consisting of GWAS-level significance (P <5 × 10-8) at 80 genotyped SNPs. An analysis of 141 non-MHC SNPs previously associated with autoimmune diseases showed that 3 SNPs linked with 3 genes were associated with DM, with a false discovery rate (FDR) of
Original language | English |
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Pages (from-to) | 3239-3247 |
Number of pages | 8 |
Journal | Arthritis Care & Research |
Volume | 65 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2013 |
Keywords
- adult
- dermatomyositis
- juvenile
- shared autoimmunity genes