IL23A and psoriasis: For example, the Genetic Analysis of Psoriasis Consortium & the Wellcome Trust Case Control Consortium 2 in a GWAS study for psoriasis, replicated many of the suggestive associations found by Nair and colleagues including SNP nearby IL-23A and TNFIP3 with P≤2×10−5 and P≤1×10−5, respectively [27], [28].