Although few DMRs exceeded a 10% change in methylation, it is noteworthy that many of those which did play roles in the pathogenesis of skin disease (SIGLEC14, JAM3, PCOLCE, RXRB, ELF5, IL22), joint disease (MBP, HCG26, IL22, PPP2R2D, PTPRN2) or are known to be imprinted (OSBPL5, SNORD115) (Table 2). Here, PTPRN2 is linked to arthropathy.