期刊
MULTIPLE SCLEROSIS JOURNAL
卷 22, 期 8, 页码 1027-1031出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1352458515606986
关键词
Vitamin D; axonal injury; multiple sclerosis; neurofilament light
资金
- Neuro Sweden
- Synapsys
- Biogen Idec AB
- Biogen Idec
- Sanofi-Genzyme
- Novartis
- Baxter Medical
Background: Previous studies in patients with multiple sclerosis (MS) have shown an association between high serum 25-hydroxyvitamin D (25[OH]D) levels and decreased inflammatory activity. Objective: The purpose of this study was to examine the association between 25(OH)D levels and axonal injury in MS. Cerebrospinal fluid neurofilament light (CSF-NFL) was used as a marker for axonal injury. Methods: Patients were identified through clinical practice at the Department of Neurology in Umea University Hospital, Sweden. Blood draw, magnetic resonance imaging, scoring of disability and lumbar puncture were performed at inclusion in 153 patients, and also at median 12 months follow-up in 87 patients. For analyses of serum 25(OH)D levels and CSF-NFL, enzyme-linked immunosorbent assays were used. Results: There was an inverse association between serum 25(OH)D and CSF-NFL levels in categorical (dichotomized at 75 or 100 nmol/l) analyses. A dose-response effect for 25(OH)D levels on CSF-NFL levels (p for trend=0.034) was also present. Serum 25(OH)D levels above 100 nmol/l were associated with lower CSF-NFL levels independently of ongoing MS treatment. Conclusion: High 25(OH)D levels are associated with decreased axonal injury in MS.
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