Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
EFFECTS OF THE DELTA-OPIOID AGONIST BW373U86 IN PIGEONS TRAINED TO DISCRIMINATE FENTANYL, BREMAZOCINE AND WATER IN A 3-CHOICE DRUG DISCRIMINATION PROCEDURE
Autore:
NEGUS SS; MORGAN D; COOK CD; PICKER MJ;
Indirizzi:
HARVARD UNIV,MCLEAN HOSP,SCH MED,ALCOHOL & DRUG ABUSE RES CTR BELMONTMA 01278 UNIV N CAROLINA,DEPT PSYCHOL CHAPEL HILL NC 27599
Titolo Testata:
Psychopharmacology
fascicolo: 3, volume: 126, anno: 1996,
pagine: 199 - 205
Fonte:
ISI
Lingua:
ENG
Soggetto:
RHESUS-MONKEYS; MORPHINE-LIKE; BETA-FUNALTREXAMINE; STIMULUS PROPERTIES; INTRINSIC ACTIVITY; RECEPTOR AGONIST; KAPPA-OPIOIDS; PEPTIDES; RAT; ANTINOCICEPTION;
Keywords:
BW373U86; FENTANYL; MORPHINE; NALBUPHINE; DRUG DISCRIMINATION; PIGEONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
S.S. Negus et al., "EFFECTS OF THE DELTA-OPIOID AGONIST BW373U86 IN PIGEONS TRAINED TO DISCRIMINATE FENTANYL, BREMAZOCINE AND WATER IN A 3-CHOICE DRUG DISCRIMINATION PROCEDURE", Psychopharmacology, 126(3), 1996, pp. 199-205

Abstract

The delta opioid agonist BW373U86 was examined alone and in combination with mu agonists in pigeons trained to discriminate the mu agonist fentanyl (0.056 mg/kg), the kappa agonist bremazocine (0.017 mg/kg), and distilled water in a three-choice drug discrimination procedure. BW373U86 (0.01-10 mg/kg) produced a dose-dependent increase in fentanyl-appropriate responding and complete generalization to fentanyl in fourof five subjects. BW373U86 did not elicit bremazocine-appropriate responding in any of the subjects. Fentanyl-appropriate responding elicited by BW373U86 was antagonized by the delta selective antagonist naltrindole (0.1-10 mg/kg) but not by the mu selective antagonist naloxone (0.1-30.0 mg/kg). When BW373U86 was administered in combination with the mu agonists fentanyl, morphine and nalbuphine, a low dose of BW373U86 (0.01 mg/kg) that elicited primarily water-appropriate responding when administered alone did not produce a significant change in the ED(50) values for fentanyl, morphine or nalbuphine. Higher doses of BW373U86 (0.1-1.0 mg/kg) increased levels of fentanyl-appropriate responding elicited by low doses of fentanyl, morphine and nalbuphine to levelssimilar to those produced by BW373U86 alone. These results indicate that BW373U86 shares discriminative stimulus properties with the mu agonist fentanyl in pigeons, possibly by acting at delta opioid receptors. However, BW373U86 does not potentiate the discriminative stimulus effects of mu agonists or share discriminative stimulus effects with thekappa agonist bremazocine.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 21:15:14