2023
Tau Positron Emission Tomography and Neurocognitive Function Among Former Professional American-Style Football Players
Dhaynaut M, Grashow R, Normandin M, Wu O, Marengi D, Terry D, Sanchez J, Weisskopf M, Speizer F, Taylor H, Guehl N, Seshadri S, Beiser A, Daneshvar D, Johnson K, Iverson G, Zafonte R, Fakhri G, Baggish A. Tau Positron Emission Tomography and Neurocognitive Function Among Former Professional American-Style Football Players. Journal Of Neurotrauma 2023, 40: 1614-1624. PMID: 37282582, PMCID: PMC10458363, DOI: 10.1089/neu.2022.0454.Peer-Reviewed Original ResearchConceptsPositron emission tomographyDistribution volume ratioNeuropsychological testsNeurocognitive functionStandardized uptake value ratioControl participantsMeasures of neurocognitive functionStructural magnetic resonance imagingMeasures of memoryDepressive symptom severityMale control participantsEmission tomographyCerebellar gray matterNeuropsychological measuresTau positron emission tomographyExecutive functionSymptom severityBrain regionsEntorhinal cortexRepetitive head impactsP-tauReference regionFormer playersRepetitive head impact exposureMale controls
2022
A multi-pronged investigation of option generation using depression, PET and modafinil
Ang Y, Cusin C, Petibon Y, Dillon D, Breiger M, Belleau E, Normandin M, Schroder H, Boyden S, Hayden E, Levine M, Jahan A, Meyer A, Kang M, Brunner D, Gelda S, Hooker J, Fakhri G, Fava M, Pizzagalli D. A multi-pronged investigation of option generation using depression, PET and modafinil. Brain 2022, 145: 1854-1865. PMID: 35150243, PMCID: PMC9166534, DOI: 10.1093/brain/awab429.Peer-Reviewed Original ResearchConceptsD2/D3 receptor availabilitySelf-generated optionsDepressive disorderDepressed individualsReceptor availabilityDopamine D2/D3 receptor availabilityNon-depressed adultsEffects of modafinilPutamen of patientsAssociated with uniquenessOption generationD2/D3 receptorsDopaminergic activityClinical depressionBinding potentialModafinilHealthy participantsPutamenPlacebo-controlledSamples of healthy peopleDouble-blindDisordersSelf-generationHealthy controlsDopamine
2021
In vivo imaging of mGlu5 receptor expression in humans with Fragile X Syndrome towards development of a potential biomarker
Mody M, Petibon Y, Han P, Kuruppu D, Ma C, Yokell D, Neelamegam R, Normandin M, Fakhri G, Brownell A. In vivo imaging of mGlu5 receptor expression in humans with Fragile X Syndrome towards development of a potential biomarker. Scientific Reports 2021, 11: 15897. PMID: 34354107, PMCID: PMC8342610, DOI: 10.1038/s41598-021-94967-y.Peer-Reviewed Original ResearchConceptsFragile X syndromeFragile X mental retardation proteinX syndromeLoss of fragile X mental retardation proteinMGlu5 receptor expressionMetabotropic glutamate subtype 5 receptorsDrug occupancy studiesSignificant group differencesFragile X mental retardationHealthy controlsAnterior cingulateMGluR5 availabilityVisuospatial processingMGlu5 receptorsOlfactory cortexBrain areasGroup differencesRetardation proteinGlutamate signalingImages of maleNeurodevelopmental disordersExcessive glutamate signalingGender-matched controlsDisordersMGluR5The cortical origin and initial spread of medial temporal tauopathy in Alzheimer’s disease assessed with positron emission tomography
Sanchez J, Becker J, Jacobs H, Hanseeuw B, Jiang S, Schultz A, Properzi M, Katz S, Beiser A, Satizabal C, O'Donnell A, DeCarli C, Killiany R, El Fakhri G, Normandin M, Gómez-Isla T, Quiroz Y, Rentz D, Sperling R, Seshadri S, Augustinack J, Price J, Johnson K. The cortical origin and initial spread of medial temporal tauopathy in Alzheimer’s disease assessed with positron emission tomography. Science Translational Medicine 2021, 13 PMID: 33472953, PMCID: PMC7978042, DOI: 10.1126/scitranslmed.abc0655.Peer-Reviewed Original ResearchConceptsPositron emission tomographyTemporal lobeMedial temporal lobe tauAlzheimer's diseaseMedial temporal lobeStudy of normal agingAssociated with baseline measuresMolecular positron emission tomographyTau-PET signalDegree of clinical impairmentEmission tomographyModel of Alzheimer's diseaseTemporal lobe anatomyCognitive declineClinical impairmentNormal agingAdult participantsStudy of AgingRhinal sulcusBrain pathologyExtratemporal regionsPET measurementsLongitudinal studyTau progressionClinically normal people
2019
Assessment of Striatal Dopamine Transporter Binding in Individuals With Major Depressive Disorder
Pizzagalli D, Berretta S, Wooten D, Goer F, Pilobello K, Kumar P, Murray L, Beltzer M, Boyer-Boiteau A, Alpert N, Fakhri G, Mechawar N, Vitaliano G, Turecki G, Normandin M. Assessment of Striatal Dopamine Transporter Binding in Individuals With Major Depressive Disorder. JAMA Psychiatry 2019, 76: 854-861. PMID: 31042280, PMCID: PMC6495358, DOI: 10.1001/jamapsychiatry.2019.0801.Peer-Reviewed Original ResearchConceptsMajor depressive disorderDA transporter availabilityVentral tegmental areaDA transporterDAT availabilityTegmental areaDepressive disorderDA signalingPositron emission tomographyDAT expressionMcLean HospitalHealthy controlsMajor depressive disorder groupsNumbers of depressive episodesStriatal dopamine transporter bindingDA transporter levelsLevels of DAT expressionStriatal DAT expressionStriatal DAT availabilityDA transporter densityDAT binding potentialDopamine transporter bindingOlder healthy controlsMesolimbic pathwayDA clearanceAutoradiography validation of novel tau PET tracer [F-18]-MK-6240 on human postmortem brain tissue
Aguero C, Dhaynaut M, Normandin M, Amaral A, Guehl N, Neelamegam R, Marquie M, Johnson K, El Fakhri G, Frosch M, Gomez-Isla T. Autoradiography validation of novel tau PET tracer [F-18]-MK-6240 on human postmortem brain tissue. Acta Neuropathologica Communications 2019, 7: 37. PMID: 30857558, PMCID: PMC6410510, DOI: 10.1186/s40478-019-0686-6.Peer-Reviewed Original ResearchConceptsIn vivo detection of neurofibrillary tanglesNeurofibrillary tanglesDetection of neurofibrillary tanglesAlzheimer's diseaseTDP-43Binds to neurofibrillary tanglesFrontotemporal lobar degeneration-tauOff-target bindingDNA-binding protein 43Binding patternsNon-Alzheimer tauopathiesHuman postmortem brain tissueTau aggregationPostmortem brain tissueBinding signalBinding targetsCerebral amyloid angiopathyIn vivo detectionB-amyloidNeurodegenerative diseasesHuman brain tissueTauTau positron emission tomographyBindingMK-6240
2017
Frontostriatal and Dopamine Markers of Individual Differences in Reinforcement Learning: A Multi-modal Investigation
Kaiser R, Treadway M, Wooten D, Kumar P, Goer F, Murray L, Beltzer M, Pechtel P, Whitton A, Cohen A, Alpert N, Fakhri G, Normandin M, Pizzagalli D. Frontostriatal and Dopamine Markers of Individual Differences in Reinforcement Learning: A Multi-modal Investigation. Cerebral Cortex 2017, 28: 4281-4290. PMID: 29121332, PMCID: PMC6454484, DOI: 10.1093/cercor/bhx281.Peer-Reviewed Original ResearchConceptsDA transporterRL behaviourVentral striatumDA clearanceFunctional connectivityBinding potentialLevel of neurocognitive functioningIncreased intrinsic functional connectivityMulti-modal neuroimaging studiesResting-state functional connectivityPhasic DA activityStriatal DA transporterIntrinsic functional connectivityReinforcement learning behaviorMulti-modal investigationsFrontostriatal circuitsFrontostriatal connectivityFrontostriatal regionsOrbitofrontal cortexDA activityNeuroimaging studiesOrbitofrontal regionsDopamine markersNeurocognitive functionDopamineLessons learned about [F-18]-AV-1451 off-target binding from an autopsy-confirmed Parkinson’s case
Marquié M, Verwer E, Meltzer A, Kim S, Agüero C, Gonzalez J, Makaretz S, Siao Tick Chong M, Ramanan P, Amaral A, Normandin M, Vanderburg C, Gomperts S, Johnson K, Frosch M, Gómez-Isla T. Lessons learned about [F-18]-AV-1451 off-target binding from an autopsy-confirmed Parkinson’s case. Acta Neuropathologica Communications 2017, 5: 75. PMID: 29047416, PMCID: PMC5648451, DOI: 10.1186/s40478-017-0482-0.Peer-Reviewed Original ResearchConceptsPositron emission tomographyBasal gangliaBinding to neuromelaninPositron emission tomography studiesDementia of AD typeInferior temporal cortexParkinson's diseaseTau pathologyPositron emission tomography scanAlzheimer's diseaseMild cognitive impairmentTemporal cortexAutoradiographic bindingBrain regionsNeurofibrillary tau pathologyOccipital cortexPositron emission tomography signalCognitive impairmentPostmortem materialEntorhinal cortexSubstantia nigraParenchymal hemorrhagePD diagnosisAutoradiography experimentsChoroid plexus
2016
Pharmacokinetic Evaluation of the Tau PET Radiotracer 18F-T807 (18F-AV-1451) in Human Subjects
Wooten D, Guehl N, Verwer E, Shoup T, Yokell D, Zubcevik N, Vasdev N, Zafonte R, Johnson K, Fakhri G, Normandin M. Pharmacokinetic Evaluation of the Tau PET Radiotracer 18F-T807 (18F-AV-1451) in Human Subjects. Journal Of Nuclear Medicine 2016, 58: 484-491. PMID: 27660144, PMCID: PMC5334185, DOI: 10.2967/jnumed.115.170910.Peer-Reviewed Original ResearchConceptsDistribution volume ratioTraumatic brain injuryMetabolite-corrected arterial input functionPET imagingPlasma radioactivity concentrationsTemporal cortexDynamic PET imagesTotal volume of distributionVolume of distributionTraumatic brain injury subjectsMesial temporal cortexArterial blood samplesPosterior cingulate gyrusFocal uptakeSUV ratioHuman subjectsArterial input functionPosterior corpus callosumBolus injectionPharmacokinetic evaluationDifferences in IV alcohol-induced dopamine release in the ventral striatum of social drinkers and nontreatment-seeking alcoholics
Yoder K, Albrecht D, Dzemidzic M, Normandin M, Federici L, Graves T, Herring C, Hile K, Walters J, Liang T, Plawecki M, O'Connor S, Kareken D. Differences in IV alcohol-induced dopamine release in the ventral striatum of social drinkers and nontreatment-seeking alcoholics. Drug And Alcohol Dependence 2016, 160: 163-169. PMID: 26832934, PMCID: PMC5074339, DOI: 10.1016/j.drugalcdep.2016.01.001.Peer-Reviewed Original ResearchConceptsSample of social drinkersNontreatment-seeking alcoholicsSocial drinkersVentral striatumDopamine releaseAlcohol intoxicationAlcohol-induced dopamine releaseVoxel-wise binding potentialTarget breath alcohol concentrationEffects of alcohol intoxicationRight ventral striatumInduce dopamine releaseStriatal DA systemIntravenous alcohol infusionAlcohol use disorderResponse to alcoholBreath alcohol concentrationDA responseStriatal dopamineDA systemTarget BrACAlcohol clampUse disorderDependent drinkersAlcohol infusion
2015
Imaging the Cannabinoid CB1 Receptor in Humans with [11C] OMAR: Assessment of Kinetic Analysis Methods, Test–Retest Reproducibility, and Gender Differences
Normandin MD, Zheng MQ, Lin KS, Mason NS, Lin SF, Ropchan J, Labaree D, Henry S, Williams WA, Carson RE, Neumeister A, Huang Y. Imaging the Cannabinoid CB1 Receptor in Humans with [11C] OMAR: Assessment of Kinetic Analysis Methods, Test–Retest Reproducibility, and Gender Differences. Cerebrovascular And Brain Metabolism Reviews 2015, 35: 1313-1322. PMID: 25833345, PMCID: PMC4528005, DOI: 10.1038/jcbfm.2015.46.Peer-Reviewed Original ResearchConceptsTest-retest reliabilityCannabinoid type 1 receptorType 1 receptorCannabinoid CB1 receptorsPositron emission tomography (PET) imagingTest-retest reproducibilityEmission Tomography ImagingGender differencesTwo-tissue compartment modelCerebral uptakePresent studyCB1 receptorsCB1R availabilityInjected doseVascular componentBody weightReceptor availabilityNeuropsychiatric disordersMultilinear analysis methodRegional volumesReceptor bindingTomography imagingParent fractionOne-tissueHuman subjects
2014
First Human Use of a Radiopharmaceutical Prepared by Continuous-Flow Microfluidic Radiofluorination: Proof of Concept with the Tau Imaging Agent [18F]T807
Liang S, Yokell D, Normandin M, Rice P, Jackson R, Shoup T, Brady T, Fakhri G, Collier T, Vasdev N. First Human Use of a Radiopharmaceutical Prepared by Continuous-Flow Microfluidic Radiofluorination: Proof of Concept with the Tau Imaging Agent [18F]T807. Molecular Imaging 2014, 13: 7290.2014.00025. PMID: 25248283, DOI: 10.2310/7290.2014.00025.Peer-Reviewed Original Research
2013
Elevated brain cannabinoid CB1 receptor availability in post-traumatic stress disorder: a positron emission tomography study
Neumeister A, Normandin MD, Pietrzak RH, Piomelli D, Zheng MQ, Gujarro-Anton A, Potenza MN, Bailey CR, Lin SF, Najafzadeh S, Ropchan J, Henry S, Corsi-Travali S, Carson RE, Huang Y. Elevated brain cannabinoid CB1 receptor availability in post-traumatic stress disorder: a positron emission tomography study. Molecular Psychiatry 2013, 18: 1034-1040. PMID: 23670490, PMCID: PMC3752332, DOI: 10.1038/mp.2013.61.Peer-Reviewed Original ResearchMeSH KeywordsAdultAmidesAnalysis of VarianceArachidonic AcidsBrainEndocannabinoidsEthanolaminesFemaleGlyceridesHumansHydrocortisoneImidazolesLogistic ModelsMalePalmitic AcidsPiperidinesPolyunsaturated AlkamidesPyrazolesRadionuclide ImagingReceptor, Cannabinoid, CB1Stress Disorders, Post-TraumaticYoung AdultConceptsPost-traumatic stress disorderVolume of distributionCB1 receptor availabilityPositron emission tomographyHC groupReceptor availabilityTC groupCannabinoid type 1 receptorStress disorderPositron emission tomography studyEvidence-based pharmacotherapyEtiology of PTSDType 1 receptorEmission tomography studiesAnandamide concentrationsElevated brainPeripheral levelsHealthy controlsCB1 receptorsUntreated individualsPET scansAnimal modelsCortisol levelsLifetime historyEmission tomography
2012
In Vivo Imaging of Endogenous Pancreatic β-Cell Mass in Healthy and Type 1 Diabetic Subjects Using 18F-Fluoropropyl-Dihydrotetrabenazine and PET
Normandin MD, Petersen KF, Ding YS, Lin SF, Naik S, Fowles K, Skovronsky DM, Herold KC, McCarthy TJ, Calle RA, Carson RE, Treadway JL, Cline GW. In Vivo Imaging of Endogenous Pancreatic β-Cell Mass in Healthy and Type 1 Diabetic Subjects Using 18F-Fluoropropyl-Dihydrotetrabenazine and PET. Journal Of Nuclear Medicine 2012, 53: 908-916. PMID: 22573821, PMCID: PMC3737743, DOI: 10.2967/jnumed.111.100545.Peer-Reviewed Original ResearchConceptsType 1 diabetes mellitusVesicular monoamine transporter type 2Pancreatic β-cell massStandardized uptake valueΒ-cell massDiabetes mellitusUptake valueType 1 diabetic subjectsΒ-cell densityHealthy control subjectsInsulin secretion capacityΒ-cell functionPathophysiology of diabetesTransporter type 2Nondisplaceable uptakeDiabetic subjectsControl subjectsDisease progressionClinical assessmentVMAT2 bindingRenal cortexTotal pancreasDTBZ PETEarly diagnosisInjected dosePositron Emission Tomography Shows Elevated Cannabinoid CB 1 Receptor Binding in Men with Alcohol Dependence
Neumeister A, Normandin MD, Murrough JW, Henry S, Bailey CR, Luckenbaugh DA, Tuit K, Zheng M, Galatzer‐Levy I, Sinha R, Carson RE, Potenza MN, Huang Y. Positron Emission Tomography Shows Elevated Cannabinoid CB 1 Receptor Binding in Men with Alcohol Dependence. Alcohol Clinical And Experimental Research 2012, 36: 2104-2109. PMID: 22551199, PMCID: PMC3418442, DOI: 10.1111/j.1530-0277.2012.01815.x.Peer-Reviewed Original ResearchConceptsPositron emission tomographyAlcohol dependenceBrain CBTime-activity curvesEmission tomographyBody mass indexHealthy control menRecent therapeutic developmentsMedication-free participantsPosterior cingulate cortexCurrent study designPreclinical evidenceSmoking statusMass indexControl menReceptor densityLast drinkECB functionCingulate cortexBrain regionsSelective radiotracerEndogenous CBOrbitofrontal cortexPeripheral measuresStudy design
2011
Striatal dopamine transporter availability in unmedicated bipolar disorder
Anand A, Barkay G, Dzemidzic M, Albrecht D, Karne H, Zheng Q, Hutchins G, Normandin M, Yoder K. Striatal dopamine transporter availability in unmedicated bipolar disorder. Bipolar Disorders 2011, 13: 406-413. PMID: 21843280, DOI: 10.1111/j.1399-5618.2011.00936.x.Peer-Reviewed Original ResearchConceptsDopamine transporter availabilityBipolar disorderDopamine transporterPositron emission tomographyNeuropathology of bipolar disorderStriatal dopamine transporter availabilityEtiology of bipolar disorderMultilinear reference tissue modelUnmedicated BPD patientsBilateral dorsal caudatePresynaptic dopamine functionStructural magnetic resonance imagingStriatal binding potentialReceptor imaging studiesReference tissue modelMagnetic resonance imagingBPD patientsDopamine functionDopamine neurotransmissionDopamine systemDorsal caudateSynaptic dopamineBPD subjectsDopaminergic systemDepressive phase
2008
When What You See Isn’t What You Get: Alcohol Cues, Alcohol Administration, Prediction Error, and Human Striatal Dopamine
Yoder KK, Morris ED, Constantinescu CC, Cheng T, Normandin MD, O’Connor S, Kareken DA. When What You See Isn’t What You Get: Alcohol Cues, Alcohol Administration, Prediction Error, and Human Striatal Dopamine. Alcohol Clinical And Experimental Research 2008, 33: 139-149. PMID: 18976347, PMCID: PMC2905874, DOI: 10.1111/j.1530-0277.2008.00821.x.Peer-Reviewed Original ResearchConceptsRinger's lactate infusionAlcohol infusionLactate infusionAlcohol administrationAlcohol-related cuesConditioned cuesStriatal DA concentrationsStriatal DA releaseLactate solutionMesolimbic dopamine systemMidbrain dopamine neuronsRinger's lactate solutionStriatal DAHuman alcohol consumptionDA releaseStriatal dopamineAlcohol drinkingDopamine neuronsDopaminergic responseNeutral cuesBaseline scanHealthy humansPET scansDopamine systemAlcohol consumptionEstimation from PET data of transient changes in dopamine concentration induced by alcohol: support for a non-parametric signal estimation method
Constantinescu C, Yoder K, Kareken D, Bouman C, O'Connor S, Normandin M, Morris E. Estimation from PET data of transient changes in dopamine concentration induced by alcohol: support for a non-parametric signal estimation method. Physics In Medicine And Biology 2008, 53: 1353-1367. PMID: 18296766, DOI: 10.1088/0031-9155/53/5/012.Peer-Reviewed Original Research
2007
Heterogeneous Effects of Alcohol on Dopamine Release in the Striatum: A PET Study
Yoder KK, Constantinescu CC, Kareken DA, Normandin MD, Cheng T, O'Connor SJ, Morris ED. Heterogeneous Effects of Alcohol on Dopamine Release in the Striatum: A PET Study. Alcohol Clinical And Experimental Research 2007, 31: 965-973. PMID: 17428296, DOI: 10.1111/j.1530-0277.2007.00390.x.Peer-Reviewed Original ResearchConceptsAnatomic extentDA responseDA releasePositron emission tomographyAlcohol-related behaviorsDopaminergic responseDopamine releaseD2/D3 receptor availabilityStriatal dopamine releaseHealthy control subjectsStriatal DA responseStriatal binding potentialD3 receptor availabilityTime-Line FollowSubjective responsesVoxel-wise t-testsEffects of alcoholControl subjectsAlcohol infusionPET scansReceptor availabilityEmission tomographyLack of reportsDA involvementPET studies