title: Chemical excitability of axons: excitatory and inhibititory effects of putative neurotransmitters and modulators on frog sciatic nerves.
abstract: The microiontophoretic administration of putative neuromodulators (acetylcholine, norepinephrine, dopamine, 2-phenylethylamine, tryptamine, histamine) triggered firing or inhibited on-going activity in isolated frog sciatic nerves.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D004298:Dopamine / Q000494:pharmacology; D005071:Evoked Potentials; D006632:Histamine / Q000494:pharmacology*; D066298:In Vitro Techniques; D007478:Iontophoresis; D018377:Neurotransmitter Agents / Q000494:pharmacology*; D009638:Norepinephrine / Q000494:pharmacology; D010627:Phenethylamines / Q000494:pharmacology*; D011892:Rana catesbeiana; D011894:Rana pipiens; D012584:Sciatic Nerve / Q000187:drug effects*; D014363:Tryptamines / Q000494:pharmacology*
chemical_list: D018377:Neurotransmitter Agents; D010627:Phenethylamines; D014363:Tryptamines; D006632:Histamine; D000109:Acetylcholine; D004298:Dopamine; D009638:Norepinephrine