RT Journal Article T1 Genome-wide association study of multiple sclerosis confirms a novel locus at 5p13.1. A1 Matesanz, Fuencisla A1 González-Pérez, Antonio A1 Lucas, Miguel A1 Sanna, Serena A1 Gayán, Javier A1 Urcelay, Elena A1 Zara, Ilenia A1 Pitzalis, Maristella A1 Cavanillas, María L A1 Arroyo, Rafael A1 Zoledziewska, Magdalena A1 Marrosu, Marisa A1 Fernández, Oscar A1 Leyva, Laura A1 Alcina, Antonio A1 Fedetz, Maria A1 Moreno-Rey, Concha A1 Velasco, Juan A1 Real, Luis M A1 Ruiz-Peña, Juan Luis A1 Cucca, Francesco A1 Ruiz, Agustín A1 Izquierdo, Guillermo K1 Estudios de Casos y Controles K1 Adulto K1 Cromosomas Humanos Par 5 K1 Enfermedad de Crohn K1 Grupo de Ascendencia Continental Europea K1 Desequilibrio de Ligamiento K1 Esclerosis Múltiple K1 Sitios de Carácter Cuantitativo AB Multiple Sclerosis (MS) is the most common progressive and disabling neurological condition affecting young adults in the world today. From a genetic point of view, MS is a complex disorder resulting from the combination of genetic and non-genetic factors. We aimed to identify previously unidentified loci conducting a new GWAS of Multiple Sclerosis (MS) in a sample of 296 MS cases and 801 controls from the Spanish population. Meta-analysis of our data in combination with previous GWAS was done. A total of 17 GWAS-significant SNPs, corresponding to three different loci were identified:HLA, IL2RA, and 5p13.1. All three have been previously reported as GWAS-significant. We confirmed our observation in 5p13.1 for rs9292777 using two additional independent Spanish samples to make a total of 4912 MS cases and 7498 controls (ORpooled = 0.84; 95%CI: 0.80-0.89; p = 1.36 × 10-9). This SNP differs from the one reported within this locus in a recent GWAS. Although it is unclear whether both signals are tapping the same genetic association, it seems clear that this locus plays an important role in the pathogenesis of MS. PB Public Library of Science YR 2012 FD 2012-05-03 LK http://hdl.handle.net/10668/956 UL http://hdl.handle.net/10668/956 LA en NO Matesanz F, González-Pérez A, Lucas M, Sanna S, Gayán J, Urcelay E, et al. Genome-wide association study of multiple sclerosis confirms a novel locus at 5p13.1. PLoS ONE. 2012; 7(5):e36140 NO Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't; DS RISalud RD Apr 7, 2025