Dermorphin interaction with peripheral opioid receptors. 1984

G Giagnoni, and D Parolaro, and L Casiraghi, and G Crema, and M Sala, and C Andreis, and E Gori

The interaction of dermorphin with different peripheral opioid receptor subtypes was investigated in vitro, using the guinea pig ileum as representative tissue for mu, the mouse vas deferens for delta, the rabbit vas deferens for kappa and the rat vas deferens for epsilon. The effect of dermorphin on each tissue preparation was compared with that of selective mu, delta, kappa epsilon agonists respectively morphine, met-enkephalinamide, ethylketocyclazocine and camel beta-endorphin. Antagonism with naloxone was also tested and calculated as Ke. It is concluded that dermorphin mainly interacts with the mu receptors, although it also binds to epsilon receptors; the interaction with delta receptors is questionable, and the kappa receptors are unaffected.

UI MeSH Term Description Entries
D008297 Male Males
D009294 Narcotics Agents that induce NARCOSIS. Narcotics include agents that cause somnolence or induced sleep (STUPOR); natural or synthetic derivatives of OPIUM or MORPHINE or any substance that has such effects. They are potent inducers of ANALGESIA and OPIOID-RELATED DISORDERS. Analgesics, Narcotic,Narcotic Analgesics,Narcotic,Narcotic Effect,Narcotic Effects,Effect, Narcotic,Effects, Narcotic
D009842 Oligopeptides Peptides composed of between two and twelve amino acids. Oligopeptide
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D011957 Receptors, Opioid Cell membrane proteins that bind opioids and trigger intracellular changes which influence the behavior of cells. The endogenous ligands for opioid receptors in mammals include three families of peptides, the enkephalins, endorphins, and dynorphins. The receptor classes include mu, delta, and kappa receptors. Sigma receptors bind several psychoactive substances, including certain opioids, but their endogenous ligands are not known. Endorphin Receptors,Enkephalin Receptors,Narcotic Receptors,Opioid Receptors,Receptors, Endorphin,Receptors, Enkephalin,Receptors, Narcotic,Receptors, Opiate,Endorphin Receptor,Enkephalin Receptor,Normorphine Receptors,Opiate Receptor,Opiate Receptors,Opioid Receptor,Receptors, Normorphine,Receptors, beta-Endorphin,beta-Endorphin Receptor,Receptor, Endorphin,Receptor, Enkephalin,Receptor, Opiate,Receptor, Opioid,Receptor, beta-Endorphin,Receptors, beta Endorphin,beta Endorphin Receptor,beta-Endorphin Receptors
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D017450 Receptors, Opioid, mu A class of opioid receptors recognized by its pharmacological profile. Mu opioid receptors bind, in decreasing order of affinity, endorphins, dynorphins, met-enkephalin, and leu-enkephalin. They have also been shown to be molecular receptors for morphine. Morphine Receptors,Opioid Receptors, mu,Receptors, Morphine,Receptors, mu,Receptors, mu Opioid,mu Receptors,Morphine Receptor,mu Opioid Receptor,mu Receptor,Opioid Receptor, mu,Receptor, Morphine,Receptor, mu,Receptor, mu Opioid,mu Opioid Receptors
D017465 Receptors, Opioid, delta A class of opioid receptors recognized by its pharmacological profile. Delta opioid receptors bind endorphins and enkephalins with approximately equal affinity and have less affinity for dynorphins. Opioid Receptors, delta,Receptors, delta,Receptors, delta Opioid,delta Receptors,delta Opioid Receptor,delta Receptor,Opioid Receptor, delta,Receptor, delta,Receptor, delta Opioid,delta Opioid Receptors
D017473 Receptors, Opioid, kappa A class of opioid receptors recognized by its pharmacological profile. Kappa opioid receptors bind dynorphins with a higher affinity than endorphins which are themselves preferred to enkephalins. Opioid Receptors, kappa,Receptors, kappa,Receptors, kappa Opioid,kappa Receptors,kappa Opioid Receptor,kappa Receptor,Opioid Receptor, kappa,Receptor, kappa,Receptor, kappa Opioid,kappa Opioid Receptors

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