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Relationship between hair cortisol concentrations and depressive symptoms in patients with coronary artery disease

Original Research

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Authors: Yekta Dowlati, Nathan Herrmann, Walter Swardfager, et al

Published Date June 2010 Volume 2010:6(1) Pages 393 - 400
DOI: http://dx.doi.org/10.2147/NDT.S10353

Yekta Dowlati1,3, Nathan Herrmann2,3, Walter Swardfager1,3, Steven Thomson4, Paul I Oh3,5, Stan Van Uum4, Gideon Koren1,4, Krista L Lanctôt1,2,3,5

1Departments of Pharmacology and Toxicology and 2Psychiatry, University of Toronto; 3Sunnybrook Health Sciences Centre, 4Department of Medicine, University of Western Ontario; 5Toronto Rehabilitation Institute, Ontario, Canada

Objective: Concentrations of cortisol in hair, a novel marker of longer-term cortisol status, were compared in depressed versus nondepressed patients with coronary artery disease (CAD).

Methods: 20 mg hair samples of 3 cm length were collected from 121 patients attending a cardiac rehabilitation program, 34 of whom suffered from depressive symptoms.

Results: Controlling for age, gender, coronary artery bypass grafting, history of depression, and time since most recent acute coronary syndrome, cortisol concentrations (P = 0.162) did not predict severity of depression. Younger age (P = 0.003) was a significant predictor of depressive symptoms. Perceived stress was not associated with long-term cortisol concentrations (P = 0.161).

Conclusions: Cortisol concentrations in hair do not predict depressive symptoms in CAD patients attending cardiac rehabilitation.

Keywords: cortisol, depression, hair, coronary artery disease








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