Neurotransmitters may be weak link in the aging brain's communication network.
D000110:Acetylcholinesterase / Q000378:metabolism; D000328:Adult; D000368:Aged; D000375:Aging; D000818:Animals; D001479:Basal Ganglia / Q000378:metabolism; D001921:Brain / Q000201:enzymology / Q000502:physiology*; D002795:Choline O-Acetyltransferase / Q000378:metabolism; D004296:Dopa Decarboxylase / Q000378:metabolism; D004298:Dopamine / Q000378:metabolism; D005260:Female; D005968:Glutamate Decarboxylase / Q000378:metabolism; D006801:Humans; D008297:Male; D008875:Middle Aged; D008995:Monoamine Oxidase / Q000378:metabolism; D012725:Sexual Behavior; D009435:Synaptic Transmission; D014446:Tyrosine 3-Monooxygenase / Q000378:metabolism
D014446:Tyrosine 3-Monooxygenase; D008995:Monoamine Oxidase; D002795:Choline O-Acetyltransferase; D000110:Acetylcholinesterase; D004296:Dopa Decarboxylase; D005968:Glutamate Decarboxylase; D004298:Dopamine