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J Neuroimmunol. 2003 Jan;134(1-2):128-32.

Cytokine profile in patients with multiple sclerosis following vitamin D supplementation.

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Graduate Program in Nutrition, Pennsylvania State University, University Park, PA 16802, USA.


Multiple sclerosis (MS) patients were randomized, in a double blind design, and placed into either a vitamin D supplemented group or a placebo control group. As expected, serum 25-hydroxyvitamin D levels increased significantly following 6 month vitamin D supplementation (17+/-6 ng/ml at baseline to 28+/-8 ng/ml at 6 months). Vitamin D supplementation also significantly increased serum transforming growth factor (TGF)-beta 1 levels from 230+/-21 pg/ml at baseline to 295+/-40 pg/ml 6 months later. Placebo treatment had no effect on serum TGF-beta 1 levels. Tumor necrosis factor (TNF)-alpha, interferon (IFN)-gamma, and interleukin (IL)-13 were not different following vitamin D supplementation. IL-2 mRNA levels decreased following vitamin D supplementation but the differences did not reach significance. Vitamin D supplementation of MS patients for 6 months was associated with increased vitamin D status and serum TGF-beta 1.

[Indexed for MEDLINE]

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