2020
Preliminary in vivo evidence of lower hippocampal synaptic density in cannabis use disorder
D’Souza D, Radhakrishnan R, Naganawa M, Ganesh S, Nabulsi N, Najafzadeh S, Ropchan J, Ranganathan M, Cortes-Briones J, Huang Y, Carson RE, Skosnik P. Preliminary in vivo evidence of lower hippocampal synaptic density in cannabis use disorder. Molecular Psychiatry 2020, 26: 3192-3200. PMID: 32973170, DOI: 10.1038/s41380-020-00891-4.Peer-Reviewed Original ResearchConceptsHippocampal synaptic densityCannabis use disorderHealthy controlsSynaptic densityPositron emission tomographyUse disordersDSM-5 cannabis use disorderVivo evidenceAdministration of cannabinoidsHippocampal synaptic integrityVerbal memory taskSynaptic vesicle glycoprotein 2AHuman cannabis usersEffects of cannabisWarrants further studyPlasma input functionMemory taskCentrum semiovaleAdult rodentsOne-tissue compartment modelSynaptic integrityHippocampal functionCannabis misuseArterial samplingEmission tomography
2009
Cannabis and psychosis/schizophrenia: human studies
D’Souza D, Sewell RA, Ranganathan M. Cannabis and psychosis/schizophrenia: human studies. European Archives Of Psychiatry And Clinical Neuroscience 2009, 259: 413-431. PMID: 19609589, PMCID: PMC2864503, DOI: 10.1007/s00406-009-0024-2.Peer-Reviewed Original ResearchConceptsPsychotic disordersRole of cannabinoidsPsychosis/schizophreniaTransient psychotic symptomsComponent causesCannabinoid receptor functionCauses of schizophreniaWarrants further studyDuration of exposureCannabinoid exposureTrigger relapsePsychotic illnessPsychotic symptomsGeneral populationCognitive symptomsHealthy individualsHuman studiesReceptor functionCannabis useNeurodevelopmental processesCannabinoidsFirst exposureSymptomsDisordersGenetic factors
2007
Cannabinoids and Psychosis
D'Souza DC. Cannabinoids and Psychosis. International Review Of Neurobiology 2007, 78: 289-326. PMID: 17349865, DOI: 10.1016/s0074-7742(06)78010-2.Peer-Reviewed Original ResearchConceptsReceptor dysfunctionPsychotic disordersTransient psychotic symptomsRecent epidemiological studiesComponent causesRates of cannabisRates of schizophreniaCauses of schizophreniaWarrants further studyAcute psychosisLung cancerCannabis exposureCannabinoid functionHigh riskPsychotic symptomsEpidemiological studiesPeriod of intoxicationPsychosisAvailable evidenceSchizophreniaCannabinoidsGenetic riskBiological plausibilityFurther studiesDysfunction