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J Photochem Photobiol B. 2010 Nov 3;101(2):142-9. doi: 10.1016/j.jphotobiol.2010.08.003. Epub 2010 Aug 10.

Vitamin D, light and mental health.

Author information

  • Department of Clinical Neuroscience, Division of Psychiatry, St. Göran, Karolinska Institutet, Stockholm, Sweden. mats.humble@gmail.com

Abstract

Vitamin D receptors and vitamin D metabolizing enzymes are present in the central nervous system. Calcitriol (the active vitamin D hormone) affects numerous neurotransmitters and neurotrophic factors, relevant for mental disorders. In the case of depressive disorders, considerable evidence supports a role of suboptimal vitamin D levels. However, the data are not conclusive and further studies are necessary. Especially, the relative importance of the pineal-melatonin system versus the vitamin D-endocrine system for the pathogenesis of seasonal affective disorders is presently unresolved. Two diagnoses, schizophrenia and autism, have been hypothetically linked to developmental (prenatal) vitamin D deficiency, however, also in adult patients, low levels have been reported, supporting the notion that vitamin D deficiency may not only be a predisposing developmental factor but also relate to the adult patients' psychiatric state. Two cases are described, whose psychiatric improvement coincided with effective treatment of vitamin D deficiency.

Copyright © 2010 Elsevier B.V. All rights reserved.

PMID:
20800506
[PubMed - indexed for MEDLINE]
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