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Zinc for Depression

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Worried_manUnsatisfactory clinical efficacy and a variety of adverse effects of current antidepressant drugs have incited search for better therapy. Zinc is an antagonist of the glutamate/N-methyl-D-aspartate (NMDA) receptor, and exhibits antidepressant‑like activity in animal models of depression. Zinc induces brain derived neurotrophic factor (BDNF) gene expression and increases level of synaptic pool of zinc in the hippocampus. Clinical observations demonstrated serum hypozincemia in depression, which was normalized by effective antidepressant treatment. Moreover, preliminary clinical research by researchers in Poland and the USA demonstrated the benefit of zinc supplementation in antidepressant therapy. All the data indicate the important role of zinc homeostasis in psychopathology and therapy of depression and potential clinical antidepressant activity of this ion.

G Nowak, B Szewczyk, A Pilc. Zinc and depression. An Update. Pharmacological Reports, 2005, 57, 713-718.

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