Six CpG sites were found to be significantly hypomethylated in BPD compared to controls: cg10030436 in PQBP1, cg07810091 in an intragenic region, cg22713892 in ZNF41, cg02871887 in RPL10, cg24395855 in an intragenic region, and cg20156774 in TAP2. The gene discussed is PQBP1; the disease is Borderline personality disorder.