2023
Dysregulation of the endogenous cannabinoid system following opioid exposure
Mohammad Aghaei A, Saali A, Canas M, Weleff J, D'Souza D, Angarita G, Bassir Nia A. Dysregulation of the endogenous cannabinoid system following opioid exposure. Psychiatry Research 2023, 330: 115586. PMID: 37931479, PMCID: PMC10842415, DOI: 10.1016/j.psychres.2023.115586.Peer-Reviewed Original ResearchConceptsEndocannabinoid systemECS componentsBrain regionsNovel neurobiological targetsTreatment of OUDEndogenous opioid systemOpioid-related deathsEndogenous cannabinoid systemSpecific brain regionsECS dysregulationOpioid exposureOUD treatmentOpioid systemCannabinoid systemNeurobiological targetsNew medicationsPreclinical literatureCannabinoid receptorsEndogenous ligandTherapeutic potentialStudy typePresent potential targetsExposure protocolOpioidsPreclinical research
2022
Consensus paper of the WFSBP task force on cannabis, cannabinoids and psychosis
D’Souza D, DiForti M, Ganesh S, George TP, Hall W, Hjorthøj C, Howes O, Keshavan M, Murray RM, Nguyen TB, Pearlson GD, Ranganathan M, Selloni A, Solowij N, Spinazzola E. Consensus paper of the WFSBP task force on cannabis, cannabinoids and psychosis. The World Journal Of Biological Psychiatry 2022, 23: 719-742. PMID: 35315315, DOI: 10.1080/15622975.2022.2038797.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsWFSBP Task ForceRisk of psychosisAge of exposureRates of psychosisRecurrent psychosisTask ForceEndocannabinoid systemPsychosis outcomesConsensus paperHigh riskPsychotic disordersPsychotic statesPsychosisPotency of cannabisCriteria of causalityCannabisCannabinoidsLines of evidenceCannabis lawsRiskExposureDisordersEvidenceConfoundersIllness
2018
Revisiting the Consequences of Adolescent Cannabinoid Exposure Through the Lens of the Endocannabinoid System
Ganesh S, Vidya K, Rashid A, Singh J, D’Souza D. Revisiting the Consequences of Adolescent Cannabinoid Exposure Through the Lens of the Endocannabinoid System. Current Addiction Reports 2018, 5: 418-427. DOI: 10.1007/s40429-018-0233-8.Peer-Reviewed Original ResearchAdolescent cannabinoid exposureCannabinoid exposureEndocannabinoid systemHuman studiesAdolescent cannabis exposurePersistent consequencesPatterns of cannabisPotential molecular mechanismsExogenous cannabinoidsCannabis exposureSynaptic potentiationAnimal modelsAdolescent exposureConflicting resultsNeurodevelopmentExposureCannabinoidsMolecular mechanismsPlausible linkRecent studiesPersistent effectsCompelling evidenceCognitive consequencesFurther researchEpigenetic mechanisms17.2 EFFICACY OF CANNABIDIOL IN THE TREATMENT OF EARLY PSYCHOSIS.
Ranganathan M, D’Souza D, Cortes-Briones J, Skosnik P. 17.2 EFFICACY OF CANNABIDIOL IN THE TREATMENT OF EARLY PSYCHOSIS. Schizophrenia Bulletin 2018, 44: s27-s27. PMCID: PMC5887318, DOI: 10.1093/schbul/sby014.066.Peer-Reviewed Original ResearchEffects of cannabidiolEarly psychosisTreatment periodPsychotic symptomsFavorable side effect profileCritical treatment periodEfficacy of cannabidiolMedication side effectsSide effect profileAnti-psychotic effectsPhase of illnessWeeks of washoutTolerable medicationsCrossover studyEffect profileAntipsychotic medicationUntreated psychosisTraditional antipsychoticsEndocannabinoid systemMetabolic parametersPsychotic illnessElectrophysiological biomarkersSide effectsTreatment engagementPotential efficacyCannabinoid receptor-mediated disruption of sensory gating and neural oscillations: A translational study in rats and humans
Skosnik PD, Hajós M, Cortes-Briones JA, Edwards CR, Pittman BP, Hoffmann WE, Sewell AR, D'Souza DC, Ranganathan M. Cannabinoid receptor-mediated disruption of sensory gating and neural oscillations: A translational study in rats and humans. Neuropharmacology 2018, 135: 412-423. PMID: 29604295, PMCID: PMC6091633, DOI: 10.1016/j.neuropharm.2018.03.036.Peer-Reviewed Original ResearchConceptsLocal field potentialsSensory gatingCP 55940AM 251Dual-click paradigmNeural oscillationsCannabinoid receptor 1P50 gating ratioGating ratioCannabinoid administrationCB1R agonistEndocannabinoid systemOutcome measuresTranslational studiesReceptor 1Brain regionsAnimal dataCannabis useRatsCannabidiolPlaceboTHC conditionsField potentialsTest dayHuman subjects
2015
Reduced Brain Cannabinoid Receptor Availability in Schizophrenia
Ranganathan M, Cortes-Briones J, Radhakrishnan R, Thurnauer H, Planeta B, Skosnik P, Gao H, Labaree D, Neumeister A, Pittman B, Surti T, Huang Y, Carson RE, D’Souza D. Reduced Brain Cannabinoid Receptor Availability in Schizophrenia. Biological Psychiatry 2015, 79: 997-1005. PMID: 26432420, PMCID: PMC4884543, DOI: 10.1016/j.biopsych.2015.08.021.Peer-Reviewed Original ResearchConceptsHealthy control subjectsSCZ subjectsCB1R availabilityECB systemMale healthy control subjectsBody mass indexAge-matched male healthy control subjectsPathophysiology of schizophreniaPositron emission tomographyPosterior cingulate cortexPresence of abnormalitiesMass indexControl subjectsEndocannabinoid systemTobacco useReceptor availabilityCingulate cortexEmission tomography dataBrain regionsEmission tomographySelective radiotracerVivo measuresRegional volumesSchizophreniaPositron emission tomography data