Do depressed patients without activation of the hypothalamus-pituitary-adrenal (HPA) system have metabolic disturbances?

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• 作者：Barbara Scharnholz ; Maria Gilles ; Annika Marzina ; Marcel Kommer ; Florian Lederbogen ; Stefan A. Wudy ; Michaela F. Hartmann ; Sabine Westphal ; Heinz J眉rgen Roth ; Kai G. Kahl ; Andreas Meyer-Lindenberg ; Henrik J. Michaely ; Michael Deuschle
• 关键词：Depression ; Metabolic syndrome ; HPA system ; Autonomic nervous system ; Blood pressure ; Fasting glucose ; Body composition ; Visceral fat
• 刊名：Psychoneuroendocrinology
• 出版年：January, 2014
• 年：2014
• 卷：39
• 期：Complete
• 页码：104-110
• 全文大小：370 K

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Summary

This study compared features of the metabolic syndrome between healthy controls and depressed patients without activation of the hypothalamus-pituitary-adrenal (HPA) system. After exclusion of non-suppressors to 1 mg dexamethasone, we included 20 depressed inpatients and 34 healthy controls in the analyses. We assessed HPA system activity (diurnal saliva cortisol profile, cortisol excretion), normetanephrine excretion as well as fasting glucose, lipid profile and blood pressure. With regard to body composition, we measured waist circumference as well as visceral fat and adrenal volume by magnetic resonance (MR) imaging. Five depressed patients (25%) and five healthy controls (15%) fulfilled the criteria of the metabolic syndrome according NCEP-ATP-III. Depression was significantly related with fasting glucose and negatively associated with mean blood pressure (BP) and, by trend, with low HDL-cholesterol. We conclude that depressed patients may have modest metabolic disturbances even in the complete absence of activation of stress-responsive systems. Hence some metabolic disturbances in depressed patients may not be explicable by HPA activation. Additional factors are required to mediate the link between affective and metabolic disorders.