Garbaraviciene et al. described the normalization of elevated thrombocyte aggregation in cases of the successful treatment of psoriasis, reporting a strong positive correlation between platelet P-selectin and PASI (r = 0.5; p < 0.000001), as well as between the change in the PASI and the change in P-selectin expression (r = 0.4; p = 0.006) [16]. This evidence concerns the gene SELP and psoriasis.