rs11190140

A two-stage genome-wide association study of 649 early-onset myasthenia gravis patients identified HLA-B*08 as the major genetic risk factor (OR=6.41, p=2.87×10⁻¹¹³) and TNIP1 Pro151Ala (rs2233290, OR=1.92, p=3.4×10⁻⁹) as a novel non-HLA locus. Together with PTPN22 (rs2476601, OR=1.71, p=8.2×10⁻¹⁰), these loci account for 62.9% of population attributable risk, implicating dysregulation of NF-κB signaling pathways in myasthenia gravis pathogenesis.

This study examined 40 SNPs (34 CD-associated and 6 UC-associated) in 2374 Canadian IBD patients (1144 CD, 1230 UC/IBDU) and 1057 healthy controls. While most immune-related variants showed similar frequencies between CD and UC, the two diseases diverged significantly in genes related to innate immunity and autophagy (NOD2, ATG16L1, IRGM), which were more prevalent in CD. In patients with colon-only CD, genetic overlap with UC was nearly complete, suggesting a shared genetic basis for colonic disease.

This case-control study of 563 Canadian children with pediatric-onset Crohn's disease and 553 controls confirmed associations between SNPs at two novel pediatric-specific loci (rs1250550 at 10q22.3, p=0.026; rs8049439 at 16p11.2, p=0.04) and disease susceptibility. Additionally, 6 of 16 previously reported adult CD loci were significantly associated with pediatric CD, demonstrating substantial genetic overlap between disease forms.