Finally, by entering into IPA, the list of CpG loci differently methylated between ≤3 yrs and >3 yrs subgroups, the molecular pathways that appear to be most affected are: p53 Signaling; Intrinsic Prothrombin Activation Pathway; Sphingosine-1-phosphate Signaling; α-tocopherol Degradation; Role of IL-17A in Psoriasis. The gene discussed is IL17A; the disease is psoriasis.