Based on the preliminary finding that, compared to healthy controls, CSF oxytocin levels were low in individuals with AN of the restricting type but not those with the binge/purge subtype (7), we hypothesized that lower fasting serum oxytocin levels would be associated with more pronounced ED psychopathology, depressive and anxiety symptoms, and deficits in socioemotional functioning in women with AN/AtypAN-R but not those with AN/AtypAN-BP. This evidence concerns the gene OXT and Anxiety.