Article
Mendelian randomization shows a causal effect of low vitamin D on multiple sclerosis risk
14 Sept 2016
Abstract excerpt
OBJECTIVE: We sought to estimate the causal effect of low serum 25(OH)D on multiple sclerosis (MS) susceptibility that is not confounded by environmental or lifestyle factors or subject to reverse causality. METHODS: We conducted mendelian randomization (MR) analyses using an instrumental variable (IV) comprising 3 single nucleotide polymorphisms found to be associated with serum 25(OH)D levels at genome-wide...
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