1992
Maintenance of acute morphine tolerance in mice by selective blockage of κ opioid receptors with norbinaltorphimine
Sofuoglu M, Portoghese P, Takemori A. Maintenance of acute morphine tolerance in mice by selective blockage of κ opioid receptors with norbinaltorphimine. European Journal Of Pharmacology 1992, 210: 159-162. PMID: 1318206, DOI: 10.1016/0014-2999(92)90666-r.Peer-Reviewed Original ResearchConceptsMorphine injectionSelective kappa opioid antagonistED50 valuesKappa-opioid antagonistAcute morphine toleranceTail-flick assayDevelopment of toleranceKappa-opioid sitesAntinociceptive ED50 valueNon-pretreated controlsSupraspinal sitesOpioid toleranceMorphine administrationControl miceMorphine sulfateMorphine toleranceOpioid agonistsOpioid antagonistSpinal sitesSingle doseOpioid receptorsOpioid sitesMorphineMiceSelective blockage
1990
Naloxone produces protracted tolerance in mice treated with a single dose of morphine.
Sofuoglu M, Takemori A. Naloxone produces protracted tolerance in mice treated with a single dose of morphine. Journal Of Pharmacology And Experimental Therapeutics 1990, 254: 836-40. PMID: 2395115.Peer-Reviewed Original ResearchMaintenance of morphine dependence by naloxone in acutely dependent mice.
Sofuoglu M, Sato J, Takemori A. Maintenance of morphine dependence by naloxone in acutely dependent mice. Journal Of Pharmacology And Experimental Therapeutics 1990, 254: 841-6. PMID: 2395116.Peer-Reviewed Original ResearchConceptsMorphine sulfateNaloxone hydrochloridePriming doseED50 valuesSingle doseControl groupMorphine-pretreated miceOpioid antagonist naloxoneSigns of withdrawalDevelopment of dependenceMS injectionDependent miceAntagonist naloxoneMorphine dependenceMiceDoseFormer groupMS 24NaloxoneHrPretreatmentWithdrawalInjectionGroupDays