The following analyses were assessed in wt and NPC1nmf164 mice treated or not with 0.09mg/kg/day EFV H. Representative fluorescence images of the CA1 hippocampal region from wt and NPC1nmf164 mice treated or not with EFV and stained with filipin and an antibody against LAMP1. White arrows indicate lysosome enlargement in the hippocampus of non-treated NPC1nmf164 mice. Graph to the right shows mean ± SEM fluorescence intensity associated to filipin per area in arbitrary units (n=4 mice, 14-week old, unpaired Student t-test, **pNPC1nmf164 = 0.0011, *pNPC1nmf164+EFV = 0.0273)). I. Survival graph for wt and NPC1nmf164 mice treated or not with EFV (n=5 mice, 2-way ANOVA, ***p < 0.0001). 