APOE and Stroke: Both the ABCA1fl/fl stroke mice administered with ApoE2 and ABCA1−B/−B stroke mice administered with ApoE2 exhibited significantly increased ApoE (Figure 1A) and HDL (Figure 1B) levels in the CSF 14 days after distal middle-cerebral artery occlusion (dMCAo) (p < 0.05, n = 9/group).