title: Effect of age on the circadian rhythm of acetylcholinesterase of the brain of the rat.
mesh_terms: D000110:Acetylcholinesterase / Q000378:metabolism*; D000375:Aging; D000818:Animals; D001921:Brain / Q000201:enzymology*; D002940:Circadian Rhythm; D008297:Male; D051381:Rats; D013053:Spectrophotometry
chemical_list: D000110:Acetylcholinesterase