DRD2 and Borderline personality disorder: Subjects: female outpatients with BSD (n = 52, 8 of which with BPD) and NE (n = 19). BSD subjects: n = 33 (63.5%) BN-purging subtype, n = 2 (3.8%) BN-non purging subtype, n = 17 (32.7%) ED n.o.s. Diagnostics: DSM-IV, EDE, CTI, SCID-II. Methods: DNA bisulfite treatment, PCR amplification and pyrosequencing for selected methylation analysis of DRD2 exon 1 promoter (10 CpG sites; chr11:113346237-113346328).