Apolipoprotein genotype does not influence MS severity, cognition, or brain atrophy

Abstract
Background: The influence of APOE allelic heterogeneity on multiple sclerosis (MS) disease severity has been reported in multiple datasets with conflicting results. Several studies have reported an unfavorable association of APOE ε4 with more severe clinical disease course while, in contrast, APOE ε2 has been associated with a more benign disease course. In this study, we examine the influence of heterogeneity of the APOE gene on disease severity in a large, Australian, population-based MS cohort.