Venugopalan, C S Biphasic responses of equine colonic vessel rings to vasoactive inflammatory mediators. [electronic resource] - Journal of autonomic pharmacology Aug 1998 - 231-7 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. ISSN: 0144-1795 Standard No.: 10.1046/j.1365-2680.1998.18488.x doi Subjects--Topical Terms: Acetylcholine--pharmacologyAnimalsBradykinin--pharmacologyColon--blood supplyEndothelium, Vascular--drug effectsEnzyme Inhibitors--pharmacologyHistamine--pharmacologyHorsesIn Vitro TechniquesMuscle Relaxation--drug effectsMuscle, Smooth, Vascular--drug effectsNG-Nitroarginine Methyl Ester--pharmacologyNitric Oxide Synthase--antagonists & inhibitorsSerotonin--pharmacologyVasodilator Agents--pharmacology