2024
The endogenous opioid system in the medial prefrontal cortex mediates ketamine’s antidepressant-like actions
Jiang C, DiLeone R, Pittenger C, Duman R. The endogenous opioid system in the medial prefrontal cortex mediates ketamine’s antidepressant-like actions. Translational Psychiatry 2024, 14: 90. PMID: 38346984, PMCID: PMC10861497, DOI: 10.1038/s41398-024-02796-0.Peer-Reviewed Original ResearchConceptsMedial prefrontal cortexAction of ketamineEndogenous opioid systemAntidepressant-like actionOpioid systemB-endorphinKetamine treatmentAntidepressant-like actions of ketamineBehavioral actions of ketamineAntidepressant actions of ketamineBehavioral effects of ketamineSingle dose of ketamineAntidepressant-like effectsLevels of B-endorphinAcute systemic administrationEffects of ketamineDose of ketamineOpioid receptor antagonistAntidepressant actionPrefrontal cortexActivation of opioid receptorsBehavioral effectsBehavioral actionsCompetitive opioid receptor antagonistOpioid receptors
2023
Methylone, a rapid acting entactogen with robust anxiolytic and antidepressant-like activity
Warner-Schmidt J, Pittenger C, Stogniew M, Mandell B, Olmstead S, Kelmendi B. Methylone, a rapid acting entactogen with robust anxiolytic and antidepressant-like activity. Frontiers In Psychiatry 2023, 13: 1041277. PMID: 36704743, PMCID: PMC9873307, DOI: 10.3389/fpsyt.2022.1041277.Peer-Reviewed Original ResearchForced Swim TestAntidepressant-like effectsMajor depressive disorderPost-traumatic stress disorderSingle doseAnxiolytic effectsSelective serotonin reuptake inhibitor antidepressantsFirst-line pharmacological treatmentSerotonin reuptake inhibitor antidepressantsAntidepressant-like responsePhase 1 studyDoses of fluoxetineReuptake inhibitor antidepressantsAntidepressant-like activityInitial clinical findingsClinical case seriesOnset of actionDurability of effectMale Sprague-DawleyDose-response relationshipSSRI fluoxetineMost patientsSSRI treatmentInhibitor antidepressantsCase series