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Mult Scler. 2012 Dec;18(12):1797-800. doi: 10.1177/1352458512442992. Epub 2012 Mar 28.

A pilot study of the immunological effects of high-dose vitamin D in healthy volunteers.

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1
School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Ireland.

Abstract

Although vitamin D deficiency is considered an environmental factor in multiple sclerosis (MS), the immunological and clinical effects of vitamin D supplementation remain unclear. We performed a pilot study of the immunomodulatory effects of vitamin D in healthy individuals (n=4), who took 5000-10,000 IU/day of vitamin D over 15 weeks. After 15 weeks of vitamin D supplementation, serum 25(OH) vitamin D levels rose significantly from baseline, with a corresponding increase in IL-10 production by peripheral blood mononuclear cells and a reduced frequency of Th17 cells. These data provide a strong rationale for randomised trials to assess the clinical effects of vitamin D supplementation in MS.

PMID:
22457344
DOI:
10.1177/1352458512442992
[Indexed for MEDLINE]

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