Abstract
In adults there is growing evidence that antidepressant (AD) treatment results in a decline in inflammatory cytokines. This is the first report, to our knowledge, of the relationship between response to selective serotonin reuptake inhibitor (SSRI) treatment for anxiety and/or depression and cytokine levels in children and adolescents. Forty-one patients who met Diagnostic and Statistical Manual for Mental Disorders, 4th ed. (DSM-IV) criteria for major depressive disorder (MDD) or anxiety disorders participated in study. Their ages ranged from 9 to 18 (14.12 ± 2.30) years. The patients were treated with fluoxetine for 8 weeks. Plasma concentrations of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β were measured by enzyme linked immunosorbent assays (ELISA) before and after fluoxetine treatment. Clinical response was measured with several scales, including the Children's Depression Rating Scale-Revised (CDRS-R), the Beck Depression Inventory (BDI), and the Screen for Child Anxiety Related Emotional Disorders (SCARED) Results: The overall response rate was 56%. Antidepressant treatment significantly reduced TNF-α levels (p = 0.037), with no significant changes in the levels of IL-6 and IL-1β. All three proinflammatory cytokines were significantly (p < 0.05) higher in SSRI-refractory than in SSRI-responsive patients. Higher levels of TNF-α, IL-6, and IL-1β might predict nonresponse to fluoxetine treatment in children.
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More From: Journal of Child and Adolescent Psychopharmacology
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