title: Decreased CSF acetylcholinesterase activity in Alzheimer's disease.
mesh_terms: D000110:Acetylcholinesterase / Q000134:cerebrospinal fluid*; D000368:Aged; D000544:Alzheimer Disease / Q000201:enzymology*; D001921:Brain / Q000201:enzymology; D003704:Dementia / Q000201:enzymology*; D006801:Humans
chemical_list: D000110:Acetylcholinesterase