title: Brain amine hypothesis.
mesh_terms: D000368:Aged; D001714:Bipolar Disorder / Q000378:metabolism; D001921:Brain / Q000378:metabolism*; D002395:Catecholamines / Q000378:metabolism*; D003863:Depression / Q000378:metabolism*; D006801:Humans; D008875:Middle Aged
chemical_list: D002395:Catecholamines