MED13L has a putative link to RA pathogenesis through the Wnt and FGF pathways (Malemud 2007, 2013; Ye et al. 2015) and in a GWAS including RA patients and healthy controls from Korea, the homologous Eae39r region on human chromosome 12, including the MED13L gene, was weakly associated (Freudenberg et al. 2011). This evidence concerns the gene MED13L and rheumatoid arthritis.