title: Receptors for substance P and neurokinins. Correlation between binding and biological activities.
abstract: The biological activities of neurokinin-related peptides were compared with their binding affinities measured in various laboratories. A positive significant correlation was demonstrated between the relaxation of the dog carotid artery and the binding of Bolton-Hunter [125I]substance P to rat brain synaptosomes, the contractions of the rat duodenum and the rabbit pulmonary artery and the binding of Bolton-Hunter [125I]neurokinin A to duodenum smooth muscle plasma membranes, and the contraction of the rat portal vein and the binding of [125I]Bolton-Hunter NH-senktide to rat cerebral cortex membranes.
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000378:metabolism; D004285:Dogs; D004386:Duodenum / Q000378:metabolism; D006168:Guinea Pigs; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000502:physiology; D009131:Muscle, Smooth, Vascular / Q000502:physiology; D015287:Neurokinin B; D009479:Neuropeptides / Q000378:metabolism*; D011817:Rabbits; D051381:Rats; D018040:Receptors, Neurokinin-1; D018041:Receptors, Neurokinin-2; D018042:Receptors, Neurokinin-3; D017981:Receptors, Neurotransmitter / Q000378:metabolism*; D013574:Synaptosomes / Q000378:metabolism
chemical_list: D009479:Neuropeptides; D018040:Receptors, Neurokinin-1; D018041:Receptors, Neurokinin-2; D018042:Receptors, Neurokinin-3; D017981:Receptors, Neurotransmitter; D015287:Neurokinin B