Adrenoceptors in the guinea-pig colon.
Guinea-pig colon was shown to contain both alpha- and beta-adrenoceptors. Isoprenaline-induced relaxation was mediated by beta-adrenoceptors alone whilst that produced by phenylephrine was mediated by both alpha- and beta- adrenoceptors.
D000818:Animals; D003106:Colon / Q000187:drug effects*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007545:Isoproterenol / Q000037:antagonists & inhibitors / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects; D010646:Phentolamine / Q000494:pharmacology; D010656:Phenylephrine / Q000037:antagonists & inhibitors; D011433:Propranolol / Q000494:pharmacology; D011941:Receptors, Adrenergic; D011955:Receptors, Drug
D011941:Receptors, Adrenergic; D011955:Receptors, Drug; D010656:Phenylephrine; D011433:Propranolol; D007545:Isoproterenol; D010646:Phentolamine