JAK2 and psoriasis: More than 4500 cases and 10,000 controls were investigated in GWAS, where 7 non-HLA susceptibility loci shared by CD and psoriasis (9p24 near JAK2, 10q22 at ZMIZ1, 11q13 near PRDX5, 16p13 near SOCS1, 19p13 near FUT2, 17q21 at STAT3, 22q11 at YDJC) were found.