期刊
PSYCHONEUROENDOCRINOLOGY
卷 45, 期 -, 页码 77-86出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.psyneuen.2014.03.019
关键词
-
资金
- Vestre Viken Hospital Trust and Ringerike Psychiatric Center
Background: Cytokines are implicated in the pathophysiology of major depressive disorder (MDD). However, the pattern of alterations in cytokine levels is still unclear. The current study investigated the plasma levels of a range of cytokines in a follow-up design, with the aim of determining their involvement in depression. Methods: Fifty medication-free MDD patients with a depressive episode and 34 healthy controls were included at baseline; the patients were followed up after 12 weeks. Before initiating treatment, the patients were diagnosed and assessed for depressive symptoms and blood for cytokine analysis was obtained. The same clinical assessments and cytokine measurements were performed after 12 weeks of treatment as usual. Results: The cytokines interleukin (IL)-1 beta, IL-1 receptor antagonist (IL-1Ra), IL-5, IL-6, IL-7, IL-8, IL-10, granulocyte colony-stimulating factor (G-CSF), and interferon gamma (IFN-gamma) were significantly elevated (p = 0.01-0.047) in depressed patients at baseline compared to healthy controls. After 12 weeks of treatment, the plasma levels of seven of these nine cytokines (IL-1Ra), IL-6, IL-7, IL-8, IL-10, G-CSF, and IFN-gamma had decreased significantly compared to baseline and did not differ from those in the healthy controls. The depressive symptoms were simultaneously significantly reduced. In addition, the reduction to normal cytokines levels occurred only in those who met the recovery criteria. Conclusion: A more general pattern of elevated cytokine levels is described herein relative to what has been described previously shown in MDD. Furthermore, recovery from depression was associated with reduction to normal levels of the majority of the measured cytokines. These results strongly support the notion that a complex network of cytokines is involved in the pathophysiology of MDD. (C) 2014 Elsevier Ltd. All rights reserved.
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