title: [Comparison of the opioid activity of a number of enkephalin and dermorphin analogs].
abstract: In search of selective ligands of opioid receptors there was synthetized a number of shortened dermorphin analogues containing nucleic amino acid substituents in positions 4 and 5 and also nucleic amino acid analogues of enkephalins. All synthetized analogues of enkephalins and dermorphin possess opioid activity revealed on preparations of the guinea pig ileum and the mouse vas deferens. Among the obtained analogues there were detected analogues exhibiting a high delta-agonistic (Tyr-D-Ala-Phe-Gly-DL-Tal-OH) or mu-agonistic (Tyr-D-Phe-Gly-Tal-Leu-OH) activity comparable with that for standard preparations DADLE and DAGO.
authors.forename: O N
authors.initials: ON
authors.lastname: Chichenkov
authors.forename: N V
authors.initials: NV
authors.lastname: Sumbatian
authors.forename: O N
authors.initials: ON
authors.lastname: Riabtseva
authors.forename: G A
authors.initials: GA
authors.lastname: Korshunova
authors.forename: V A
authors.initials: VA
authors.lastname: Shorr
mesh_terms: D000818:Animals; D004745:Enkephalins / Q000494:pharmacology*; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D009842:Oligopeptides / Q000494:pharmacology*; D018847:Opioid Peptides; D011957:Receptors, Opioid / Q000187:drug effects*; D013329:Structure-Activity Relationship; D014649:Vas Deferens / Q000187:drug effects
chemical_list: D004745:Enkephalins; D009842:Oligopeptides; D018847:Opioid Peptides; D011957:Receptors, Opioid; C030058:dermorphin
vernacular_title: Sravnenie opioidnoĭ aktivnosti riada analogov énkefalinov i dermorfina.