2020
First-in-Human Evaluation of 18F-SynVesT-1, a Radioligand for PET Imaging of Synaptic Vesicle Glycoprotein 2A
Naganawa M, Li S, Nabulsi N, Henry S, Zheng MQ, Pracitto R, Cai Z, Gao H, Kapinos M, Labaree D, Matuskey D, Huang Y, Carson RE. First-in-Human Evaluation of 18F-SynVesT-1, a Radioligand for PET Imaging of Synaptic Vesicle Glycoprotein 2A. Journal Of Nuclear Medicine 2020, 62: 561-567. PMID: 32859701, PMCID: PMC8049363, DOI: 10.2967/jnumed.120.249144.Peer-Reviewed Original ResearchConceptsC-UCBSynaptic densityRegional time-activity curvesTime-activity curvesDistribution volumeMetabolite-corrected arterial input functionPET imagingMultilinear analysis 1Synaptic vesicle glycoprotein 2AAntiepileptic drug levetiracetamTotal distribution volumeNondisplaceable distribution volumeCentrum semiovaleBlocking doseHealthy volunteersHuman studiesDrug levetiracetamLassen plotNeuropsychiatric disordersPET radioligandArterial input functionNonhuman primatesLevetiracetamReference regionRadioligandFirst-in-Human Assessment of 11C-LSN3172176, an M1 Muscarinic Acetylcholine Receptor PET Radiotracer
Naganawa M, Nabulsi N, Henry S, Matuskey D, Lin SF, Slieker L, Schwarz AJ, Kant N, Jesudason C, Ruley K, Navarro A, Gao H, Ropchan J, Labaree D, Carson RE, Huang Y. First-in-Human Assessment of 11C-LSN3172176, an M1 Muscarinic Acetylcholine Receptor PET Radiotracer. Journal Of Nuclear Medicine 2020, 62: 553-560. PMID: 32859711, PMCID: PMC8049371, DOI: 10.2967/jnumed.120.246967.Peer-Reviewed Original ResearchConceptsSimplified reference tissue modelM1 receptorsHealthy subjectsMuscarinic acetylcholine receptor subtype M1Distribution volumePET radiotracersAbsolute test-retest variabilityExcellent test-retest reproducibilityReference tissue model 2Total distribution volumeSuitable reference regionTest-retest reproducibilityTest-retest variabilityReference regionTest-retest protocolNondisplaceable distribution volumeReference tissue modelTest-retest studySubtypes M1Preclinical studiesRegional time-activity curvesAcetylcholine concentrationHuman studiesReceptor occupancyTime-activity curves
2008
Shortened protocol in practical [11C]SA4503-PET studies for sigma1 receptor quantification
Sakata M, Kimura Y, Naganawa M, Ishikawa M, Oda K, Ishii K, Hashimoto K, Chihara K, Ishiwata K. Shortened protocol in practical [11C]SA4503-PET studies for sigma1 receptor quantification. Annals Of Nuclear Medicine 2008, 22: 143-146. PMID: 18311540, DOI: 10.1007/s12149-007-0088-x.Peer-Reviewed Original ResearchMeSH KeywordsAdultBrain ChemistryBrain MappingCarbon RadioisotopesClinical ProtocolsFluvoxamineHumansImage Interpretation, Computer-AssistedImage Processing, Computer-AssistedIsotope LabelingMaleParoxetinePiperazinesPositron-Emission TomographyRadioligand AssayRadiopharmaceuticalsReceptors, sigmaSelective Serotonin Reuptake InhibitorsTissue DistributionConceptsTotal distribution volumePET scansSelective serotonin reuptake inhibitorsSerotonin reuptake inhibitorsReuptake inhibitorsHealthy subjectsLogan plot analysisReceptor measurementsTomography diagnosisTime-activity curvesBrain disordersDistribution volumePET studiesReceptor quantificationTissue time-activity curvesScansCompartmental analysisFull-length protocolsPositron Emission Tomography DiagnosisPatientsPlot analysisRegion of interestProtocolDiagnosisAdministration
2007
Distribution volume as an alternative to the binding potential for sigma1 receptor imaging
Kimura Y, Naganawa M, Sakata M, Ishikawa M, Mishina M, Oda K, Ishii K, Ishiwata K. Distribution volume as an alternative to the binding potential for sigma1 receptor imaging. Annals Of Nuclear Medicine 2007, 21: 533-535. PMID: 18030587, DOI: 10.1007/s12149-007-0063-6.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAnatomy, RegionalBrainBrain MappingCarbon RadioisotopesData Interpretation, StatisticalFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedNonlinear DynamicsPiperazinesPositron-Emission TomographyRadioligand AssayRadiopharmaceuticalsReceptors, sigmaReference StandardsConceptsPositron emission tomographyDistribution volumeTotal distribution volumeReference regionReceptor densityClinical investigationReceptor imagingSigma1 receptorsEmission tomographyAppropriate reference regionReceptorsTarget receptorsPhysiological situationsNeuroreceptor mappingHigh affinityImagingDVTDiseaseRadioligandBrainMapping of human cerebral sigma1 receptors using positron emission tomography and [11C]SA4503
Sakata M, Kimura Y, Naganawa M, Oda K, Ishii K, Chihara K, Ishiwata K. Mapping of human cerebral sigma1 receptors using positron emission tomography and [11C]SA4503. NeuroImage 2007, 35: 1-8. PMID: 17240168, DOI: 10.1016/j.neuroimage.2006.11.055.Peer-Reviewed Original ResearchMeSH KeywordsAdultBiotransformationBrainBrain ChemistryBrain MappingChromatography, High Pressure LiquidData Interpretation, StatisticalDopamine AntagonistsHaloperidolHumansImage Processing, Computer-AssistedMaleNonlinear DynamicsPiperazinesPositron-Emission TomographyRadioligand AssayRadiopharmaceuticalsReceptors, sigmaConceptsTotal distribution volumePositron emission tomographyEmission tomographyMetabolite correctionHealthy male subjectsSigma receptor antagonistLogan plotHuman brainPlasma input functionReceptor antagonistOral administrationClinical studiesPET scansThree-compartment modelPartial blockadePsychiatric diseasesMale subjectsSigma1RSigma1 receptorsBaseline measurementsDistribution volumeTwo-tissueHaloperidolBrainReceptors
2005
Omission of serial arterial blood sampling in neuroreceptor imaging with independent component analysis
Naganawa M, Kimura Y, Nariai T, Ishii K, Oda K, Manabe Y, Chihara K, Ishiwata K. Omission of serial arterial blood sampling in neuroreceptor imaging with independent component analysis. NeuroImage 2005, 26: 885-890. PMID: 15955498, DOI: 10.1016/j.neuroimage.2005.02.025.Peer-Reviewed Original ResearchConceptsArterial blood samplingBlood samplingCerebral glucose metabolismAdenosine A1 receptorsTotal distribution volumeSerial arterial blood samplingLogan plotPET imagesPlasma time-activity curveA1 receptorsHealthy subjectsGlucose metabolismTime-activity curvesDistribution volumeBrain diseasesDVTReference regionSubjectsParametric imagesDynamic PET images