[Effect of DOPA and dopamine on the motility of isolated rat duodenum in vitro].
The motor effects of DOPA and Dopamine on the isolated rat duodenum in vitro have been studied by establishing successive dose- response curves. These effects are either excitatory or inhibitory according to the concentrations used. In every case they are of small amplitude. The inhibitory effects do not exist in the presence of alpha, and beta blocking agents. The excitatory effects are suppressed by using a serotoninergic blocking agent.
D000818:Animals; D004295:Dihydroxyphenylalanine / Q000494:pharmacology*; D004298:Dopamine / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004386:Duodenum / Q000187:drug effects / Q000502:physiology*; D005769:Gastrointestinal Motility / Q000187:drug effects*; D066298:In Vitro Techniques; D008297:Male; D051381:Rats
D004295:Dihydroxyphenylalanine; D004298:Dopamine
Action de la DOPA et de la dopamine sur la motricité du duodenum isolé de rat, in vitro.