Abstract
Introduction:
The primary aim of this study was to determine a plausible association between the radiological location of multiple sclerosis (MS) lesions and serum 25-hydroxyvitamin D (vitamin D) levels at the time of diagnosis. MS is a common immune-mediated neurological condition mainly affecting the central nervous system. Although the association of vitamin D levels is well established, there have not been many studies to propose a connection between the location of the lesions based on serum vitamin D levels. In this study, we determine the association between serum 25-hydroxyvitamin D and the radiological distribution of lesions in patients with MS.
Methods:
Twenty patients with a confirmed diagnosis of MS involving new T2-weighted and gadolinium-enhancing T1-weighted lesions in the entire central nervous system (brain and spinal cord) with serum 25-hydroxyvitamin D levels at the time of diagnosis were included in a case group. As a reference, 20 patients with a confirmed diagnosis of MS with isolated new T2-weighted and gadolinium-enhancing T1-weighted lesions (either supratentorial, infratentorial, or spinal cord) with serum 25-hydroxyvitamin D levels at the time of diagnosis were included in the control group.
Results:
The mean serum 25-hydroxyvitamin D level was significantly low in the case group compared to the control group (36.2 ± 17.2 vs 62.6 ± 21.0; p-value <0.0001).
Conclusion:
There is a plausible inverse relationship between serum vitamin D and the MS lesions involving the entire central nervous system (brain and spinal cord). This evidence may enable clinicians to forecast disease load based on serum vitamin D levels.
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