In the GWAS performed by Ellinghaus et al. (2010), also in Caucasian patients, an association was identified between rs12191877 (HLA-C) and rs2145623 (nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor gene, NF-κBIA) and psoriasis (Table 1) [45]. This evidence concerns the gene NFKBIA and psoriasis.