“…Based on findings indicating generally altered glucocorticoid functioning in BN, 8,9 and a role of a main GR gene polymorphism in bulimic and associated phenomenology, 6,7 we explored the possibility that women with BN, when compared to noneating-disordered (NED) women, might display propensities toward hypermethylation of the GR gene promoter. We also explored two alternative hypotheses: The first, based on evidence linking developmental stress to altered GR methylation in animals and humans, [15][16][17][18] was that GR gene methylation might be more characteristic of individuals with BN who reported exposure to childhood abuse than of people with BN alone; the second, based on studies associating suicidality 18 and BPD 20,21 with increased GR gene methylation, was that GR methylation might be more pronounced in individuals with BN who also displayed comorbid ''borderline'' or ''suicidal'' manifestations, than of people with BN alone. Guided by previous findings, we targeted CpG sites in GR gene first exon sites 1B, 1C, 1F, and 1H, 16,18 measuring percent methylation at each CpG.…”