Vitamin D Supplementation and its Effect on Relapse Frequency and MRI Activity in Adults With Multiple Sclerosis: A Systematic Review
Hall K, Renteria J, Fernandez E, Abrahams J, Bhakta S
Brain and behavior · 0 citas
Cómo se estudió
- Diseño
- Revisión sistemática (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Eventos clínicos como enfermedad o muerte
Quién lo pagó
- Financiación
- Financiación independiente
Según la declaración de financiación del texto completo.
Publicación
- Publicado
- 2026-08-01 · Brain Behav · vol. 16 · número 8 · pág. e71692
- Editorial
- Wiley
- Citado
- 1 cita · más que el 90% de estudios similares · 2.3× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 15 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Multiple Sclerosis Research Studies · Vitamin D Research Studies · Psoriasis: Treatment and Pathogenesis
- Palabras clave
- vitamin D supplementation, multiple sclerosis, relapse rate, annualized relapse rate, MRI lesion activity, inflammatory lesions, alfacalcidol, disease-modifying therapy, vitamin D deficiency
- MeSH
- humans, multiple sclerosis, recurrence, vitamin d, magnetic resonance imaging, dietary supplements, adult
5 autores
- Kamren Hall · autor de correspondencia
- Jessica Renteria
- Elizabeth Fernandez
- Janique Abrahams
- Saajan Bhakta
Resumen
El texto original del estudio, en el idioma en que se publicó.
Introduction
Literature evidence links vitamin D supplementation to clinical outcomes in multiple sclerosis (MS), yet no systematic review has focused specifically on relapse rate and MRI activity. Thus, this systematic review aimed to evaluate the effect of vitamin D supplementation on relapse rate and magnetic resonance imaging (MRI) disease activity in adults with clinically diagnosed MS.
Methods
This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. PubMed, Cochrane, EBSCO, and Web of Science were searched for studies discussing vitamin D supplementation in adults with diagnosed MS. Annualized relapse rate (ARR) and changes in MRI activity were the primary outcome measures. Non-randomized studies and randomized controlled trials were assessed for their risk of bias using the Cochrane ROBINS-I and RoB-2 tools, respectively.
Results
Of 304 records identified, 127 duplicates were removed and 177 were screened, with 11 primary studies (14 reports) included after full-text review. Across studies, vitamin D supplementation did not suggest a reduced ARR with most randomized trials reporting no significant difference between groups. One trial using alfacalcidol provides evidence for a reduction in relapse risk, but this was not replicated. MRI outcomes were more variable, with several studies showing reductions in inflammatory lesion activity, while others found no significant effect. Overall, results were inconsistent, and due to heterogeneity in study design and reporting, findings were synthesized narratively without meta-analysis.
Conclusion
Vitamin D supplementation does not consistently reduce relapse rates in adults with MS, although some studies report improvement in MRI activity. The overall certainty of evidence is limited by variation in study design, patient population, cohort size, and risk of bias. Current data does not support vitamin D as a disease-modifying therapy beyond correction of deficiency; further, larger, standardized trials are needed to clarify its clinical role.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY).
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