Lipid raft (LR) yield, amyloid precursor protein (APP) and NeuN by Braak score in frontal cortex and cerebellum of 65+ year old cognitively normal (open circles) and demented (closed circles). A) LR yield per mg tissue, B) APP, C) NeuN and D) coplot of NeuN and LR yield. One way ANOVA; *p<0.05, **p<0.01, ****p<0.0001. Spearman correlation; **p<0.05.