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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Neumeister, A. et al.

Neumeister, Praschak-Rieder, Willeit, Stastny, Kasper,

Monoamine depletion in non-pharmacological treatments for depression.

Non-pharmacological treatments such as light therapy for seasonal affective disorder or sleep deprivation for non-seasonal depression have been shown to treat depression effectively. With the use of the tryptophan depletion paradigm and the catecholamine depletion paradigm we assessed the role of brain serotonergic and catecholaminergic systems respectively. We found that disturbances in brain serotonin systems play a key role in the pathogenesis of seasonal affective disorder and that light therapy may compensate for the underlying deficit. Moreover there is evidence that catecholaminergic systems may be involved in the mechanism of action of light therapy. Tryptophan depletion studies suggest that sleep deprivation does not exert its antidepressant effects by involving brain serotonin systems alone. Interestingly, tryptophan depletion prevented the relapse after the recovery night, possibly by enhancing brain serotonin transmission after the depletion procedure.[1]

References

Monoamine depletion in non-pharmacological treatments for depression. Neumeister, A., Praschak-Rieder, N., Willeit, M., Stastny, J., Kasper, S. Adv. Exp. Med. Biol. (1999) [Pubmed]

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