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Curcumin for the treatment of major depression: A randomised, double-blind, placebo controlled study.

Lopresti AL, Maes M, Maker GL, Hood SD, Drummond PD (2014) J Affect Disord.  October 2014 167 368-75 Elsevier B.V

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Abstract:

BACKGROUND: Curcumin, the principal curcuminoid derived from the spice turmeric, influences several biological mechanisms associated withmajor depression, namely those associated with monoaminergic activity, immune-inflammatory and oxidative and nitrosative stress pathways, hypothalamus-pituitary-adrenal (HPA) axis activity and neuroprogression. We hypothesised that curcumin would be effective for the treatment of depressive symptoms in individuals with major depressive disorder.

METHODS: In a randomiseddouble-blindplacebo-controlled study, 56 individuals with major depressive disorder were treated with curcumin (500mg twice daily) or placebo for 8 weeks. The primary measure was the Inventory of Depressive Symptomatology self-rated version (IDS-SR30). Secondary outcomes included IDS-SR30 factor scores and the Spielberger State-Trait Anxiety Inventory (STAI).

RESULTS: From baseline to week 4, both curcumin and placebo were associated with improvements in IDS-SR30 total score and most secondary outcome measures. From weeks 4 to 8, curcumin was significantly more effective than placebo in improving several mood-related symptoms, demonstrated by a significant group x time interaction for IDS-SR30 total score (F1, 53=4.22, p=.045) and IDS-SR30 mood score (F1, 53=6.51, p=.014), and a non-significant trend for STAI trait score (F1, 48=2.86, p=.097). Greater efficacy from curcumin treatment was identified in a subgroup of individuals with atypical depression.

CONCLUSIONS: Partial support is provided for the antidepressant effects of curcumin in people with major depressive disorder, evidenced by benefits occurring 4 to 8 weeks after treatment.

LIMITATIONS: Investigations with larger sample sizes, over extended treatment periods, and with varying curcumin dosages are required. I

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