title: Evidence for presynaptic dopaminergic inhibition of noradrenergic transmission in the rat portal vein.
mesh_terms: D000818:Animals; D004298:Dopamine / Q000502:physiology*; D004558:Electric Stimulation; D006145:Guanethidine / Q000494:pharmacology; D066298:In Vitro Techniques; D008297:Male; D009131:Muscle, Smooth, Vascular / Q000187:drug effects / Q000502:physiology*; D009638:Norepinephrine / Q000502:physiology*; D011169:Portal Vein / Q000187:drug effects; D051381:Rats; D009435:Synaptic Transmission / Q000187:drug effects
chemical_list: D004298:Dopamine; D009638:Norepinephrine; D006145:Guanethidine