Muscarinic M1-receptors mediate the negative inotropic effect of methacholine in chicken but not in guinea-pig atria.
Lindmar
R
R
Department of Pharmacology, University of Mainz, Federal Republic of Germany.
Löffelholz
K
K
D000818:Animals; D002645:Chickens; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008688:Methacholine Compounds / Q000494:pharmacology*; D009200:Myocardial Contraction / Q000187:drug effects*; D010890:Pirenzepine / Q000494:pharmacology; D011976:Receptors, Muscarinic / Q000502:physiology*; D013045:Species Specificity
D008688:Methacholine Compounds; D011976:Receptors, Muscarinic; D010890:Pirenzepine