2020
PET imaging of mGluR5 in Alzheimer’s disease
Mecca AP, McDonald JW, Michalak HR, Godek TA, Harris JE, Pugh EA, Kemp EC, Chen MK, Salardini A, Nabulsi NB, Lim K, Huang Y, Carson RE, Strittmatter SM, van Dyck CH. PET imaging of mGluR5 in Alzheimer’s disease. Alzheimer's Research & Therapy 2020, 12: 15. PMID: 31954399, PMCID: PMC6969979, DOI: 10.1186/s13195-020-0582-0.Peer-Reviewed Original ResearchConceptsEarly Alzheimer's diseaseAlzheimer's diseaseMild cognitive impairmentBrain amyloidHippocampus of ADPositron emission tomography radioligandSubtype 5 receptorsMild AD dementiaGray matter atrophyAssociation cortical regionsAmnestic mild cognitive impairmentImportant therapeutic targetCerebellum reference regionDynamic PET scansHippocampal mGluR5MethodsSixteen individualsMGluR5 bindingSynaptotoxic actionAD dementiaAD pathogenesisMatter atrophyInitial administrationAD groupSynaptic transmissionEntorhinal cortex
2009
123I-5-IA-85380 SPECT Imaging of Nicotinic Receptors in Alzheimer Disease and Mild Cognitive Impairment
Mitsis EM, Reech KM, Bois F, Tamagnan GD, MacAvoy MG, Seibyl JP, Staley JK, van Dyck CH. 123I-5-IA-85380 SPECT Imaging of Nicotinic Receptors in Alzheimer Disease and Mild Cognitive Impairment. Journal Of Nuclear Medicine 2009, 50: 1455-1463. PMID: 19690024, DOI: 10.2967/jnumed.109.064030.Peer-Reviewed Original ResearchConceptsAdvanced Alzheimer's diseaseMild cognitive impairmentHealthy control subjectsControl subjectsCognitive impairmentAge-matched healthy control subjectsAlzheimer's diseaseBrain regionsEffect of diagnosisNicotinic acetylcholine receptorsLate-stage phenomenonCholinergic reductionIA-85380Effect of ageUnivariate analysisNicotinic receptorsAnterior cingulateConstant infusionAcetylcholine receptorsTrail Making TestMultivariate analysisNeuropsychologic variablesDiagnostic groupsSignificant overall effectSPECT imaging
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
Equilibrium modeling of 5-ht2a receptors with [18f]deuteroaltanserin and pet: feasibility of a constant infusion paradigm
van Dyck C, Soares J, Tan P, Staley J, Baldwin R, Amici L, Fu X, Garg P, Seibyl J, Charney D, Innis R. Equilibrium modeling of 5-ht2a receptors with [18f]deuteroaltanserin and pet: feasibility of a constant infusion paradigm. Nuclear Medicine And Biology 2000, 27: 715-722. PMID: 11150702, DOI: 10.1016/s0969-8051(00)00160-8.Peer-Reviewed Original ResearchConceptsSpecific brain uptakeConstant infusion paradigmBrain uptakeInfusion paradigmConstant infusionPromising positron emission tomography (PET) ligandPositron emission tomography (PET) ligandVenous blood samplingHealthy male subjectsSerotonin 2A receptorStable radiotracerCerebellar ratioInfusion periodBlood samplingTomography ligandH postinjectionTime-activity curvesParent tracerLinear regression analysisMale subjectsPET radioligandSlow metabolismHuman subjectsBrain activityRegression analysis