alexa HPA axis dysfunction in major depression: relationship to 5-HT(1A) receptor activity.
Diabetes & Endocrinology

Diabetes & Endocrinology

Journal of Diabetes & Metabolism

Author(s): Pitchot W, Herrera C, Ansseau M

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Abstract Major depression is associated with a dysfunction of the serotonergic activity and the hypothalamic-pituitary-adrenal (HPA) axis. Moreover, a reciprocal relationship between the serotonergic and HPA axis systems has been hypothesized. The purpose of the present study was to assess the relationship between sensitivity of 5-HT(1A) receptors as measured by hormonal (ACTH, cortisol and PRL) and temperature responses to flesinoxan and HPA axis activity as measured by the dexamethasone suppression test. The sample included 21 inpatients with major depression. Dexamethasone nonsuppressors exhibited lower ACTH responses to flesinoxan as compared with dexamethasone suppressors. The results showed that a dysfunction in 5-HT(1A) receptor activity could be due to a hypersecretion of cortisol. Copyright 2001 S. Karger AG, Basel This article was published in Neuropsychobiology and referenced in Journal of Diabetes & Metabolism

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