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  • Title: Changes of serum concentrations of brain-derived neurotrophic factor (BDNF) during treatment with venlafaxine and mirtazapine: role of medication and response to treatment.
    Author: Deuschle M, Gilles M, Scharnholz B, Lederbogen F, Lang UE, Hellweg R.
    Journal: Pharmacopsychiatry; 2013 Mar; 46(2):54-8. PubMed ID: 22961097.
    Abstract:
    INTRODUCTION: Depression, stress and antidepressant treatment have been found to modulate the expression of brain-derived neurotrophic factor (BDNF). Recent research suggests that serum BDNF concentration is reduced in depression and that antidepressant treatment leads to an increase in serum BDNF concentration. METHODS: We studied depressed patients receiving a randomized antidepressant treatment with either mirtazapine (n=29) or venlafaxine (n=27) for 28 days in a prospective design. Changes in the concentrations of serum neurotrophins in response to antidepressant treatment were assessed. RESULTS: There was a significant "treatment" by "medication" interaction effect on BDNF serum concentrations that indicated a decline of BDNF in venlafaxine-treated patients (7.82±3.75-7.18±5.64 ng/mL), while there was an increase in mirtazapine-treated patients (7.64±6.23-8.50±5.37 ng/mL). There was a trend for a "treatment" by "remission" interaction with a favourable clinical course being related to increasing serum BDNF. DISCUSSION: Changes in BDNF serum concentrations as a result of antidepressant therapy depend on the antidepressant and potentially on the clinical course.
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