2023
Evaluation of trans- and cis-4‑[18F]Fluorogabapentin for Brain PET Imaging
Zhou Y, Normandin M, Belov V, Macdonald-Soccorso M, Moon S, Sun Y, Fakhri G, Guehl N, Brugarolas P. Evaluation of trans- and cis-4‑[18F]Fluorogabapentin for Brain PET Imaging. ACS Chemical Neuroscience 2023, 14: 4208-4215. PMID: 37947793, PMCID: PMC11485007, DOI: 10.1021/acschemneuro.3c00593.Peer-Reviewed Original ResearchConceptsNeuropathic painRodent models of neuropathic painSubunit of voltage-dependent calcium channelsModel of neuropathic painTreatment of neuropathic painMetabolite-corrected arterial input functionVoltage-dependent calcium channelsMultilinear analysis 1Brain uptakePET imagingDose of gabapentinOne-tissue compartment modelRegional time-activity curvesAdult rhesus macaquesPlasma protein bindingTime-activity curvesModerate brain uptakeCalcium channelsInjured nerveArterial input functionGabapentinRodent modelsAnticonvulsant medicationBrain PET imagingRhesus macaquesMeasurement of Cerebral Perfusion Indices from the Early Phase of [18F]MK6240 Dynamic Tau PET Imaging
Guehl N, Dhaynaut M, Hanseeuw B, Moon S, Lois C, Thibault E, Fu J, Price J, Johnson K, El Fakhri G, Normandin M. Measurement of Cerebral Perfusion Indices from the Early Phase of [18F]MK6240 Dynamic Tau PET Imaging. Journal Of Nuclear Medicine 2023, 64: 968-975. PMID: 36997330, PMCID: PMC10241011, DOI: 10.2967/jnumed.122.265072.Peer-Reviewed Original ResearchConceptsTime-activity curvesCerebral perfusionMetabolite-corrected arterial input functionBrain time-activity curvesEarly phaseRegional time-activity curvesIndices of cerebral perfusionDynamic [<sup>18</sup>FBlood-brain barrierPlasma to brain tissueStatistically significant differenceArterial blood samplesForty-nine subjectsCNArterial input functionPathophysiological mechanismsPerfusion indicatorsPET imagingBlood samplesSignificant differenceSurrogate indexNoninvasive estimationAnatomical informationCompound BForty-nine
2022
Radiochemical Synthesis and Evaluation of 3‑[11C]Methyl-4-aminopyridine in Rodents and Nonhuman Primates for Imaging Potassium Channels in the CNS
Sun Y, Guehl N, Zhou Y, Takahashi K, Belov V, Dhaynaut M, Moon S, Fakhri G, Normandin M, Brugarolas P. Radiochemical Synthesis and Evaluation of 3‑[11C]Methyl-4-aminopyridine in Rodents and Nonhuman Primates for Imaging Potassium Channels in the CNS. ACS Chemical Neuroscience 2022, 13: 3342-3351. PMID: 36417797, PMCID: PMC9732819, DOI: 10.1021/acschemneuro.2c00364.Peer-Reviewed Original ResearchConceptsRegional brain time-activity curvesBrain time-activity curvesOne-tissue compartment modelBlood-brain barrierConsistent with <i>inNonhuman primatesTime-activity curvesPositron emission tomographySpinal cord injuryDemyelinated neuronsNeurological symptomsPotassium channelsNeuronal conductionBrain uptakeEmission tomographyStille cross-couplingMultiple sclerosisCord injurySlow kineticsBrain permeabilityTraumatic brainMyelin sheathStronger binding affinityNeuronsBrainHuman biodistribution and radiation dosimetry of the demyelination tracer [18F]3F4AP
Brugarolas P, Wilks M, Noel J, Kaiser J, Vesper D, Ramos-Torres K, Guehl N, Macdonald-Soccorso M, Sun Y, Rice P, Yokell D, Lim R, Normandin M, El Fakhri G. Human biodistribution and radiation dosimetry of the demyelination tracer [18F]3F4AP. European Journal Of Nuclear Medicine And Molecular Imaging 2022, 50: 344-351. PMID: 36197499, PMCID: PMC9816249, DOI: 10.1007/s00259-022-05980-w.Peer-Reviewed Original ResearchConceptsRadiation dosimetryTime-activity curvesAdverse eventsEffective doseMultiple bed positionsComprehensive metabolic panelNonhuman primatesHealthy human volunteersNo adverse eventsDynamic PET scansVoltage-gated potassiumAnimal models of neurological diseasesNonhuman primate studiesModels of neurological diseasesHuman biodistributionAverage effective doseMetabolic panelDosimetryOLINDA softwareHealthy volunteersUrinary bladderPET scansDemyelinating lesionsBed positionAnimal models
2012
Positron 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
Synthesis and evaluation of [18F]exendin (9–39) as a potential biomarker to measure pancreatic β-cell mass
Wang Y, Lim K, Normandin M, Zhao X, Cline GW, Ding YS. Synthesis and evaluation of [18F]exendin (9–39) as a potential biomarker to measure pancreatic β-cell mass. Nuclear Medicine And Biology 2011, 39: 167-176. PMID: 22033026, PMCID: PMC4484741, DOI: 10.1016/j.nucmedbio.2011.07.011.Peer-Reviewed Original ResearchConceptsStandardized uptake valuePositron emission tomography (PET) imagingEmission Tomography ImagingPancreatic β-cell massΒ-cell massTomography imagingInsulin contentGlucagon-like peptide-1 (GLP-1) receptor antagonistGlucagon-like peptide-1Biobreeding diabetes-prone (BB-DP) ratDiabetes-prone ratsVivo positron emission tomography (PET) imagingSprague-Dawley ratsBlood glucose homeostasisReceptor antagonistGlucose homeostasisPeptide-1Time-activity curvesUptake valuePotential biomarkersHigh-resolution research tomographExendin analogsIn-111RatsPostmortem measures