title: Peripheral action of serotonin as a model of depression.
mesh_terms: D006916:5-Hydroxytryptophan / Q000494:pharmacology*; D000578:Amidines / Q000494:pharmacology*; D000818:Animals; D001812:Blood-Brain Barrier; D003216:Conditioning, Operant / Q000187:drug effects*; D003864:Depression, Chemical; D003866:Depressive Disorder; D004195:Disease Models, Animal; D008297:Male; D051381:Rats; D011985:Receptors, Serotonin / Q000187:drug effects*
chemical_list: D000578:Amidines; D011985:Receptors, Serotonin; C029751:BW 501C; D006916:5-Hydroxytryptophan