2008
Age-related decline in nicotinic receptor availability with [123I]5-IA-85380 SPECT
Mitsis EM, Cosgrove KP, Staley JK, Bois F, Frohlich EB, Tamagnan GD, Estok KM, Seibyl JP, van Dyck CH. Age-related decline in nicotinic receptor availability with [123I]5-IA-85380 SPECT. Neurobiology Of Aging 2008, 30: 1490-1497. PMID: 18242781, PMCID: PMC3523217, DOI: 10.1016/j.neurobiolaging.2007.12.008.Peer-Reviewed Original ResearchConceptsHigh-affinity nicotineEffect of ageReceptor availabilityBrain regionsNicotinic acetylcholine receptor availabilityConstant infusion paradigmHuman postmortem studiesHuman subjectsSingle photon emissionIA-85380NAChR availabilityAge-related declineInfusion paradigmPostmortem studiesPostmortem reportsAgePhoton emissionNicotinePearson correlationCognitive agingSubjectsLinear regressionNonsmokersBolusNAChRs
2001
The Variable Number of Tandem Repeats Polymorphism of the Dopamine Transporter Gene Is Not Associated with Significant Change in Dopamine Transporter Phenotype in Humans
Martinez D, Gelernter J, Abi-Dargham A, van Dyck C, Kegeles L, Innis R, Laruelle M. The Variable Number of Tandem Repeats Polymorphism of the Dopamine Transporter Gene Is Not Associated with Significant Change in Dopamine Transporter Phenotype in Humans. Neuropsychopharmacology 2001, 24: 553-560. PMID: 11282255, DOI: 10.1016/s0893-133x(00)00216-5.Peer-Reviewed Original ResearchMeSH KeywordsAdultAmphetamineAttention Deficit Disorder with HyperactivityBenzamidesCarrier ProteinsCocaineCocaine-Related DisordersDopamineDopamine AntagonistsDopamine Plasma Membrane Transport ProteinsGenotypeHumansIodine RadioisotopesMembrane GlycoproteinsMembrane Transport ProteinsMinisatellite RepeatsNeostriatumNerve Tissue ProteinsPhenotypePolymorphism, GeneticPsychotic DisordersPyrrolidinesRadiopharmaceuticalsSchizophreniaTomography, Emission-Computed, Single-PhotonConceptsAmphetamine-induced dopamine releaseDopamine releaseDAT expressionDopamine transporterDifferent patient populationsAttention deficit hyperactivity disorderDeficit hyperactivity disorderNeurochemical phenotypePatient populationHealthy controlsDAT densityComputerized emission tomographyDopamine transmissionClinical phenotypeDiagnostic groupsSignificant associationEmission tomographyCocaine-induced paranoiaHyperactivity disorderTandem repeat polymorphismVNTR polymorphismDopamine transporter geneRepeat polymorphismTotal sample
2000
Age-related decline in central serotonin transporter availability with [123I]β-CIT SPECT
van Dyck C, Malison R, Seibyl J, Laruelle M, Klumpp H, Zoghbi S, Baldwin R, Innis R. Age-related decline in central serotonin transporter availability with [123I]β-CIT SPECT. Neurobiology Of Aging 2000, 21: 497-501. PMID: 10924762, DOI: 10.1016/s0197-4580(00)00152-4.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overAgingBrain ChemistryBrain StemCarrier ProteinsCocaineDiencephalonFemaleHumansIodine RadioisotopesMaleMembrane GlycoproteinsMembrane Transport ProteinsMiddle AgedNerve Tissue ProteinsReference ValuesSerotonin Plasma Membrane Transport ProteinsTomography, Emission-Computed, Single-PhotonConceptsSERT availabilitySerotonin transporterCentral serotonin transporter availabilityHealthy control subjectsSerotonin transporter availabilitySignificant inverse correlationCentral serotonin transportersAge range 18Single photon emissionBeta-carbomethoxy-3 betaEffect of ageAge-related declineBrain uptakeCIT SPECTControl subjectsPostmortem studiesTransporter availabilityHuman brainstemLinear regression analysisInverse correlationAgeHuman subjectsRegression analysisPhoton emissionPresent studyDopamine and serotonin transporters in patients with schizophrenia: an imaging study with [123I]β-CIT
Laruelle M, Abi-Dargham A, van Dyck C, Gil R, D’Souza D, Krystal J, Seibyl J, Baldwin R, Innis R. Dopamine and serotonin transporters in patients with schizophrenia: an imaging study with [123I]β-CIT. Biological Psychiatry 2000, 47: 371-379. PMID: 10704949, DOI: 10.1016/s0006-3223(99)00257-7.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsBrain StemCarrier ProteinsCase-Control StudiesCocaineDopamineDopamine Plasma Membrane Transport ProteinsFemaleHumansIodine RadioisotopesMaleMembrane GlycoproteinsMembrane Transport ProteinsMiddle AgedNeostriatumNerve Tissue ProteinsSchizophreniaSerotoninSerotonin Plasma Membrane Transport ProteinsTomography, Emission-Computed, Single-PhotonConceptsAmphetamine-induced dopamine releaseStriatal dopamine transporterDopamine transporterControl subjectsDAT densityDopamine releaseNegative symptomsStriatal DAT densityDuration of illnessDopamine nerve terminalsHealthy control subjectsSerotonin transporter densityCohort of subjectsRelative deficitSingle photon emissionNeurodegenerative processesPostmortem studiesNerve terminalsSerotonin functionTrend-level associationReceptor radiotracerPatientsDopamine functionLower striatalTransporter density
1999
[123I]Iomazenil SPECT benzodiazepine receptor imaging in schizophrenia
Verhoeff N, Soares J, D’Souza C, Gil R, Degen K, Abi-Dargham A, Zoghbi S, Fujita M, Rajeevan N, Seibyl J, Krystal J, van Dyck C, Charney D, Innis R. [123I]Iomazenil SPECT benzodiazepine receptor imaging in schizophrenia. Psychiatry Research 1999, 91: 163-173. PMID: 10641580, DOI: 10.1016/s0925-4927(99)00027-x.Peer-Reviewed Original ResearchConceptsDuration of illnessHealthy control subjectsControl subjectsGamma-aminobutyric acidLeft precentral gyrusSuperior occipital gyrusPANSS scoresPrecentral gyrusOccipital gyrusSignificant differencesTotal brain uptakeNon-smoking patientsGray matter atrophyConstant infusion paradigmPathophysiology of schizophreniaCortical brain regionsSingle photon emissionTypical antipsychoticsAtypical antipsychoticsCigarette smokingInhibitory neurotransmissionBrain uptakeInfusion paradigmMatter atrophyPostmortem studies
1996
Human biodistribution and dosimetry of the SPECT D2 dopamine receptor radioligand [123I]IBF
van Dyck C, Seibyl J, Stubbs J, Zoghbi S, Wisniewski G, Baldwin R, Zea-Ponce Y, Charney D, Hoffer P, Innis R. Human biodistribution and dosimetry of the SPECT D2 dopamine receptor radioligand [123I]IBF. Nuclear Medicine And Biology 1996, 23: 9-16. PMID: 9004921, DOI: 10.1016/0969-8051(95)02003-9.Peer-Reviewed Original ResearchConceptsDopamine receptor radioligandBrain uptakeReceptor radioligandPromising SPECT agentMSv/MBqUrinary excretion fractionHigh brain uptakePeak brain uptakeUrinary bladder wallD2 dopamine receptorsHealthy human subjectsRapid urinary excretionSingle photon emissionMedical Internal Radiation Dose (MIRD) schemaHuman biodistributionUrinary excretionDopamine receptorsFavorable dosimetryBladder wallExcretion fractionRenal systemInjected activitySPECT agentHuman subjectsDose estimates