Diurnal patterns of salivary cortisol and DHEA in adolescent anorexia nervosa

Oskis, Andrea and Loveday, Catherine and Hucklebridge, Frank and Thorn, Lisa and Clow, Angela (2012) Diurnal patterns of salivary cortisol and DHEA in adolescent anorexia nervosa. Stress, 15 (6). pp. 601-607. ISSN 1025-3890

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Abstract

Although there is well-documented evidence for hyperactivity of hypothalamic–pituitary–adrenal (HPA) axis function in anorexia nervosa (AN), there has been little research into secretory patterns of salivary cortisol and dehydroepiandrosterone (DHEA) in this condition. The cortisol awakening response (CAR), a prominent and discrete feature of the cortisol cycle, has not been extensively explored in adolescent AN. Saliva samples were collected at awakening, 30 min and 12 h post-awakening on two consecutive weekdays from eight female adolescents with clinically diagnosed AN and 41 healthy control (HC) age-matched females. Adolescent AN patients had greater salivary cortisol and DHEA concentrations than HC girls at all points. Increased hormone secretion was unrelated to body mass index. However, despite hypersecretion of both hormones, the circadian pattern including the CAR paralleled that of the HC group. Findings from this preliminary study confirm dysregulation of HPA axis function in adolescent AN as evidenced by hypersecretion of both cortisol and DHEA, which share the common secretagogue adrenocorticotropic hormone. However, the parallel diurnal profiles for AN and HC participants, including the CAR, may indicate hypersecretion per se rather than differential regulation of the diurnal pattern of these two adrenal steroids in AN.

Item Type: Article
Research Areas: A. > School of Science and Technology > Psychology
A. > School of Science and Technology > Psychology > Centre for Abuse and Trauma Studies (CATS)
Item ID: 12183
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Depositing User: Users 3197 not found.
Date Deposited: 15 Oct 2013 12:17
Last Modified: 13 Oct 2016 14:29
URI: http://eprints.mdx.ac.uk/id/eprint/12183

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