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    Eur Neuropsychopharmacol. 2008 Sep;18(9):639-45. Epub 2008 Jun 6.

    A double-blind dose-finding pilot study of docosahexaenoic acid (DHA) for major depressive disorder.

    Mischoulon D, Best-Popescu C, Laposata M, Merens W, Murakami JL, Wu SL, Papakostas GI, Dording CM, Sonawalla SB, Nierenberg AA, Alpert JE, Fava M.

    Source

    Depression Clinical and Research Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States. dmischoulon@partners.org

    Abstract

    We examined the antidepressant efficacy and dose-response pattern of the n-3 docosahexaenoic acid (DHA). Thirty-five depressed adult outpatients (46% women; mean age 42+/-14 years) with a 17-item Hamilton-Depression Scale (HAM-D-17) score of >or=18 were randomized into one of three double-blind dosing arms for 12 weeks. Group A (n=14): 1 g/day of oral DHA; Group B (n=11): 2 g/day; and Group C (n=10): 4 g/day. We measured HAM-D-17 scores, plasma DHA, eicosapentaenoic acid (EPA), and n-6/n-3 ratio. Completer response rates (>or=50% decrease in HAM-D-17 score) were 83% for Group A, 40% for Group B, and 0% for Group C; Groups A and B had significant decreases in HAM-D-17 scores (p<0.05). For completers and intent-to-treat subjects, plasma DHA increased significantly (p<0.05), EPA had little change (p>0.05), and n-6/n-3 decreased significantly (p<0.05). DHA may be effective for depression at lower doses.

    PMID:
    18539007
    [PubMed - indexed for MEDLINE]

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