2024
Substance use and spine density: a systematic review and meta-analysis of preclinical studies
Oliva H, Prudente T, Nunes E, Cosgrove K, Radhakrishnan R, Potenza M, Angarita G. Substance use and spine density: a systematic review and meta-analysis of preclinical studies. Molecular Psychiatry 2024, 29: 2873-2885. PMID: 38561468, DOI: 10.1038/s41380-024-02519-3.Peer-Reviewed Original ResearchSpine densityPrefrontal cortexSubstance useDrug self-administrationHippocampal spine densityEffects of cocaineSubstance use disordersConvergence of findingsSpine density changesSubstances of abuseMeta-analysis of preclinical studiesNucleus accumbensBehavioral sensitizationSelf-administrationBrain mechanismsPreclinical studiesBrain regionsMorphine effectsSynaptic density changesMeta-analysisAmphetamineSynaptic densityCocaineModerate-to-highCortex
2021
In vivo evidence of lower synaptic vesicle density in schizophrenia
Radhakrishnan R, Skosnik PD, Ranganathan M, Naganawa M, Toyonaga T, Finnema S, Hillmer AT, Esterlis I, Huang Y, Nabulsi N, Carson RE, D’Souza D. In vivo evidence of lower synaptic vesicle density in schizophrenia. Molecular Psychiatry 2021, 26: 7690-7698. PMID: 34135473, DOI: 10.1038/s41380-021-01184-0.Peer-Reviewed Original ResearchConceptsSynaptic vesicle densityHealthy controlsVesicle densityHigh-resolution research tomographySynaptic densitySCZ patientsVivo measuresNovel positron emission tomography (PET) ligandGender-matched healthy controlsCumulative antipsychotic exposurePositron emission tomography (PET) ligandSynaptic spine densityPsychosis symptom severityGray matter volumeJ bindingAntipsychotic exposureSpine densityDisease progressionFrontal cortexOccipital cortexTomography ligandTemporal cortexAnterior cingulateVivo findingsParietal cortex