title: Catecholamine synthesis in brain of ageing rat.
mesh_terms: D000375:Aging; D000818:Animals; D001921:Brain / Q000254:growth & development* / Q000378:metabolism; D002395:Catecholamines / Q000378:metabolism*; D008297:Male; D051381:Rats; D014443:Tyrosine / Q000378:metabolism
chemical_list: D002395:Catecholamines; D014443:Tyrosine