Cortisol responses on the dexamethasone suppression test among women with Bulimia-spectrum eating disorders: associations with clinical symptoms

Progress in Neuro-psychopharmacology & Biological Psychiatry
Kenneth R BruceGhislaine Badawi

Abstract

Evidence associates Bulimia Nervosa (BN) with altered functioning of the hypothalamic-pituitary-adrenal (HPA) axis, but the clinical implications of such alterations need to be better understood. We contrasted cortisol responses to the dexamethasone suppression test (DST) in bulimic and non-eating disordered women and examined relationships among DST cortisol responses, eating symptoms and co-morbid disturbances. Sixty women with Bulimia Spectrum (BS) Disorders (either BN or normal weight Eating Disorder NOS with regular binge eating or purging) and 54 non-eating disordered women of similar age and body mass index participated in a 0.5 mg DST, and completed interviews and questionnaires assessing eating symptoms and co-morbid psychopathology. Compared with the normal-eater group, the BS women demonstrated significantly less DST suppression. Among BS women, DST non-suppression was associated with more severe depression, anxiety and eating preoccupations. Our findings show BS women to show less DST suppression compared to normal eater women, and results link extent of non-suppression, in BS individuals, to severity of depression, anxiety and eating preoccupations.

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Citations

Nov 28, 2013·Endocrine·Giacomo TirabassiGiorgio Arnaldi
Sep 16, 2014·European Eating Disorders Review : the Journal of the Eating Disorders Association·Margarita C T Slof-Op't LandtEric F Van Furth
Apr 30, 2013·Brain, Behavior, and Immunity·Karina S MacDowellJosé Luis Carrasco
Feb 22, 2018·European Eating Disorders Review : the Journal of the Eating Disorders Association·Francisco J Vaz-LealJuan A Guisado-Macías

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