Keywords: مایع بینابینی مغز; AD; Alzheimer's disease; Aβ; amyloid beta; ABC; ATP-binding cassette; P-gp, ABCB1; ABC transporters P-glycoprotein; BBB; blood-brain barrier; BCSFB; blood-CSF barrier; ISF; brain interstitial fluid; CSF; cerebrospinal fluid; CP; choroid plexus; IFN; inte