
Keywords: OKA; Okadaic acid; PP2A; Protein phosphatase 2A; GSK-3β; Glycogen synthase kinase-3β; PHF; Paired helical filament; NFT; Neurofibrillary tangle; AD; Alzheimer's disease; Aβ; Beta amyloid; AChE; Acetylcholinestrse activity; ChAT; Choline acetyle transfe