The following analyses were assessed in wt and NPC1nmf164 mice treated or not with 0.09mg/kg/day EFV G. Mean ± SEM cholesterol level in synaptosomes of wt and NPC1nmf164 mice treated or not with EFV expressed as percentage of the wt non-treated samples (n=4 mice, 14 week-old, 2-way ANOVA, *pNPC1 < 0.0476, *pNPC1+EFV < 0.0118). 