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High Dose Vitamin D Supplementation Does Not Affect Biochemical Bone Markers in Multiple Sclerosis - a Randomized Controlled Trial

Overview
Journal BMC Neurol
Publisher Biomed Central
Specialty Neurology
Date 2017 Apr 6
PMID 28376767
Citations 8
Authors
Affiliations
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Abstract

Background: People with multiple sclerosis have high risk of osteoporosis and fractures. A poor vitamin D status is a risk factor for MS, and vitamin D supplementation has been recommended both to prevent MS progression and to maintain bone health.

Methods: We assessed the effect of 20,000 IU vitamin D weekly compared to placebo on biochemical markers of bone metabolism in 68 persons with relapsing remitting multiple sclerosis.

Results: Serum levels of 25-hydroxyvitamin D more than doubled in the vitamin D group, and parathyroid hormone decreased in the vitamin D group compared to the placebo group at week 48 and week 96. There was however no effect on bone formation as measured by procollagen type I N propeptide (PINP), or on bone resorption as measured by C-terminal cross-linking telopeptide of type I collagen (CTX1). Neither PINP nor CTX1 predicted bone loss from baseline to week 96.

Conclusions: These findings corroborate the previously reported lack of effect of weekly high dose vitamin D supplementation on bone mass density in the same patients, and suggest that such vitamin D supplementation does not prevent bone loss in persons with MS who are not vitamin D deficient.

Trial Registration: The trial was registered at ClinicalTrials.gov on April 4 2008, registration number NCT00785473 .

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Smolders J, Torkildsen O, Camu W, Holmoy T CNS Drugs. 2019; 33(12):1187-1199.

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