2018
Assessing Synaptic Density in Alzheimer Disease With Synaptic Vesicle Glycoprotein 2A Positron Emission Tomographic Imaging
Chen MK, Mecca AP, Naganawa M, Finnema SJ, Toyonaga T, Lin SF, Najafzadeh S, Ropchan J, Lu Y, McDonald JW, Michalak HR, Nabulsi NB, Arnsten AFT, Huang Y, Carson RE, van Dyck CH. Assessing Synaptic Density in Alzheimer Disease With Synaptic Vesicle Glycoprotein 2A Positron Emission Tomographic Imaging. JAMA Neurology 2018, 75: 1215-1224. PMID: 30014145, PMCID: PMC6233853, DOI: 10.1001/jamaneurol.2018.1836.Peer-Reviewed Original ResearchConceptsPositron emission tomographic imagingSynaptic vesicle glycoprotein 2ASynaptic densityAlzheimer's diseaseEmission tomographic imagingHigh-resolution PET scanningPET scanningCognitive impairmentDisease-modifying therapiesDisease-modifying treatmentsNormal participantsCross-sectional studyPittsburgh compound BMajor structural correlateAmnestic mild cognitive impairmentMagnetic resonance imagingMild cognitive impairmentJ PET imagingRestoration of synapsesSpecific bindingNeurologic evaluationSynaptic lossDisease stagePostmortem studiesOutcome measures
2013
Reductions in Brain 5-HT1B Receptor Availability in Primarily Cocaine-Dependent Humans
Matuskey D, Bhagwagar Z, Planeta B, Pittman B, Gallezot JD, Chen J, Wanyiri J, Najafzadeh S, Ropchan J, Geha P, Huang Y, Potenza MN, Neumeister A, Carson RE, Malison RT. Reductions in Brain 5-HT1B Receptor Availability in Primarily Cocaine-Dependent Humans. Biological Psychiatry 2013, 76: 816-822. PMID: 24433854, PMCID: PMC4037398, DOI: 10.1016/j.biopsych.2013.11.022.Peer-Reviewed Original ResearchConceptsRegional binding potentialPositron emission tomographyCocaine dependenceEmission tomographyFrontal cortexReceptor availabilityAge-matched healthy control subjectsSignificant gray matter reductionsYears of cocaineIllicit substance abuseHealthy control subjectsDaily tobacco useCocaine-dependent humansGray matter reductionsEffects of cocaineMagnetic resonance imagingSignificant reductionPreclinical evidenceControl subjectsPrimary addictionSerotonin receptorsHealthy subjectsTobacco useMedication developmentAnterior cingulate