2025
Effects of Long-Term Cocaine Self-Administration on Kappa Opioid Receptors in Socially Housed Cynomolgus Monkeys as Assessed with PET Imaging and Neuronally Derived Exosomes
Johnson B, Allen M, Nader S, Sai K, Kumar A, Su Y, Singh S, Li S, Huang Y, Deep G, Nader M. Effects of Long-Term Cocaine Self-Administration on Kappa Opioid Receptors in Socially Housed Cynomolgus Monkeys as Assessed with PET Imaging and Neuronally Derived Exosomes. Biological Psychiatry 2025 PMID: 40054763, DOI: 10.1016/j.biopsych.2025.02.900.Peer-Reviewed Original ResearchLong-term cocaine self-administrationKappa-opioid receptorsCocaine self-administrationSelf-administrationKappa opioid receptor availabilityPeripheral measuresSocially housed monkeysOpioid receptorsCocaine intakeCocaine SAIntravenous cocaineCocaine misuseBrain regionsCocainePET imagingCynomolgus monkeysSocial rankPET studiesPharmacological interventionsMonkeysPET scansBrainBlood samplesDominant femalesSocial
2024
PET Imaging of Kappa Opioid Receptors in Socially Housed Female and Male Monkeys: Effects of Chronic Cocaine Self-Administration
Johnson B, Nader S, Sai K, Li S, Huang Y, Nader M. PET Imaging of Kappa Opioid Receptors in Socially Housed Female and Male Monkeys: Effects of Chronic Cocaine Self-Administration. Drug And Alcohol Dependence 2024, 260: 109961. DOI: 10.1016/j.drugalcdep.2023.109961.Peer-Reviewed Original ResearchCocaine use disorderKappa-opioid receptorsCocaine self-administrationCocaine-induced changesCocaine SASelf-administrationBinding potentialPositron emission tomographySocial rank differencesChronic cocaine self-administrationSocial rankDrug-naive monkeysKappa-opioid receptor antagonistKappa-opioid receptor agonistFDA-approved pharmacotherapiesOpioid receptorsRegulation of stressPositron emission tomography imagingCocaine intakeDynorphin/KOR systemKOR systemFood pelletsUse disorderExperiment 1Brain regions
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