Association of a Polymorphism Within Intron 8 But Not Exon 9 of the Vitamin D Receptor in Patients With Multiple Sclerosis of Southeastern Iranian Ethnicity
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Objective: To investigate the association between multiple sclerosis (MS) and polymorphisms in intron 8 and exon 9 of the vitamin D receptor (VDR) gene. Methods: Blood samples were collected from 100 patients with MS and 100 healthy control individuals in ethylenediaminetetraacetic acid (EDTA) tubes. DNA was extracted and analyzed via polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) for polymorphisms within the VDR. Demographic data were also collected via a questionnaire designed specifically for this study. Results: Our results showed a significant difference between the A/A genotype and between the A and a alleles of intron 8 of VDR; however, no differences were observed in the other studied alleles. Conclusion: VDR and its functional polymorphisms may be associated with MS.
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Neurology and Neuromuscular Diseases