... ) and homologous angiotensin II ([Asn 1 , Val 5 ] Ang II;5×10 –7 mol kg –1 ) was markedly enhanced(107 and 97%, respectively) in desensitized preparations. However, the secretory response to the muscarinic receptor agonist methylcholine(1×10 –3 mol kg –1 ) was unchanged by desensitization. The results...

... and nicotinic receptors is proposed, since atropine and tubocurarine (at 10 –3 mol l –1 ) inhibited 99 % and 71 %, respectively, of the light emitted. Study of the subtypes of cholinergic receptors involved in photogenesis revealed that several subtypes of muscarinic receptors might be involved. It was also...

... with Na + -free saline or removal of the spinal cord abolished secretion of both catecholamines in response to the electrical stimulus. By using the field stimulation technique, this study is the first to demonstrate conclusively a role for muscarinic receptors in catecholamine secretion from trout...

... voltagedependent conductances present in the membrane allows a complete reconstruction of the effects of slow synaptic transmission on electrical behaviour. © 1986 by Company of Biologists 1986 sympathetic ganglion slow EPSP muscarinic receptor This chapter is concerned with slow synaptic...