title: Circadian variation in human brain enzymes.
mesh_terms: D000110:Acetylcholinesterase / Q000032:analysis; D002795:Choline O-Acetyltransferase / Q000032:analysis; D002940:Circadian Rhythm; D005625:Frontal Lobe / Q000201:enzymology* / Q000473:pathology; D005968:Glutamate Decarboxylase / Q000032:analysis; D006593:Hexokinase / Q000032:analysis; D006801:Humans; D013997:Time Factors
chemical_list: D002795:Choline O-Acetyltransferase; D006593:Hexokinase; D000110:Acetylcholinesterase; D005968:Glutamate Decarboxylase