2025
Sex Differences in Histamine Regulation of Striatal Dopamine
Van Zandt M, Pittenger C. Sex Differences in Histamine Regulation of Striatal Dopamine. Journal Of Neuroscience 2025, 45: e2182242025. PMID: 40355265, PMCID: PMC12160404, DOI: 10.1523/jneurosci.2182-24.2025.Peer-Reviewed Original ResearchConceptsSubstantia nigra pars compactaAttention deficit hyperactivity disorderStriatal dopamineTourette syndromeSex differencesNeuropsychiatric conditionsModulation of striatal dopamineDysregulation of dopamineRegulation of dopamineReplicating previous workDeficit hyperactivity disorderInfusion of agonistsStriatal circuitryDopamine modulationHyperactivity disorderDopamineHistamine regulationBasal gangliaH3R agonistTargeted infusionGABAergic neuronsIntracerebroventricularMale miceEffect of histamineHistamine receptors
2023
How can I measure brain acetylcholine levels in vivo? Advantages and caveats of commonly used approaches
Mineur Y, Picciotto M. How can I measure brain acetylcholine levels in vivo? Advantages and caveats of commonly used approaches. Journal Of Neurochemistry 2023, 167: 3-15. PMID: 37621094, PMCID: PMC10616967, DOI: 10.1111/jnc.15943.Peer-Reviewed Original ResearchMeSH KeywordsAcetylcholineAnimalsBrainCholinergic AgentsLearningMicrodialysisNeurotransmitter Agents
2021
Increased branched‐chain amino acids at baseline and hours before a spontaneous seizure in the human epileptic brain
Ong C, Damisah EC, Gruenbaum SE, Dhaher R, Deng Y, Sandhu MRS, Zaveri HP, Spencer DD, Eid T. Increased branched‐chain amino acids at baseline and hours before a spontaneous seizure in the human epileptic brain. Epilepsia 2021, 62: e88-e97. PMID: 33949690, PMCID: PMC11259155, DOI: 10.1111/epi.16920.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAmino Acids, Branched-ChainBrain ChemistryChildChild, PreschoolChromatography, High Pressure LiquidDrug Resistant EpilepsyElectrocorticographyElectroencephalographyEpilepsies, PartialExtracellular SpaceFemaleGlutamic AcidHumansIsoleucineMaleMicrodialysisMiddle AgedSeizuresTandem Mass SpectrometryYoung AdultConceptsSpontaneous seizuresDrug-resistant focal epilepsyExtracellular brain glutamateHuman epileptic brainBranched-chain amino acidsBranched chain amino acids valineRefractory epilepsyBrain microdialysisGlutamatergic neurotransmissionFocal epilepsySeizure onsetBrain glutamateEpileptic brainHuman patientsSeizuresBrain regionsDialysis samplesMammalian targetEpilepsyLiquid chromatography-tandem mass spectrometryBaselineBCAAIntracranial electroencephalographyChromatography-tandem mass spectrometryPatients
2016
Elevated basal glutamate and unchanged glutamine and GABA in refractory epilepsy: Microdialysis study of 79 patients at the yale epilepsy surgery program
Çavuş I, Romanyshyn JC, Kennard JT, Farooque P, Williamson A, Eid T, Spencer SS, Duckrow R, Dziura J, Spencer DD. Elevated basal glutamate and unchanged glutamine and GABA in refractory epilepsy: Microdialysis study of 79 patients at the yale epilepsy surgery program. Annals Of Neurology 2016, 80: 35-45. PMID: 27129611, DOI: 10.1002/ana.24673.Peer-Reviewed Original ResearchConceptsGABA levelsEpilepsy patientsΓ-aminobutyric acid (GABA) neurotransmissionGlutamine levelsGABAergic antiepileptic drugsEpilepsy surgery programRefractory epilepsy patientsCommon pathological featureAberrant glutamateAnn NeurolNonepileptogenic cortexSeizure-onset sitesRefractory epilepsyBasal glutamateAntiepileptic drugsCortical lesionsMicrodialysis studyPatient groupInterictal levelsPathological featuresDifferent etiologiesNeocortical epilepsyGlutamate levelsSeizure generationElectroencephalogram evaluation50 Hz hippocampal stimulation in refractory epilepsy: Higher level of basal glutamate predicts greater release of glutamate
Cavus I, Widi GA, Duckrow RB, Zaveri H, Kennard JT, Krystal J, Spencer DD. 50 Hz hippocampal stimulation in refractory epilepsy: Higher level of basal glutamate predicts greater release of glutamate. Epilepsia 2016, 57: 288-297. PMID: 26749134, DOI: 10.1111/epi.13269.Peer-Reviewed Original ResearchConceptsBasal glutamate levelsRefractory epilepsyGlutamate effluxBasal glutamateGlutamate levelsElectrical stimulationEpileptic hippocampusGlutamate releaseSeizure groupHz stimulationBrain glutamate releaseHippocampus of patientsStimulation-induced increaseEpilepsy monitoring unitStimulation-induced changesEpileptogenic hippocampusInduced seizuresSeizure inductionSpontaneous seizuresInterictal levelsGlutamate increaseAtrophic hippocampusElectroencephalography evaluationHippocampal stimulationHippocampal electrodes
2012
Acute Effects of Nimodipine on Cerebral Vasculature and Brain Metabolism in High Grade Subarachnoid Hemorrhage Patients
Choi HA, Ko SB, Chen H, Gilmore E, Carpenter AM, Lee D, Claassen J, Mayer SA, Schmidt JM, Lee K, Connelly ES, Paik M, Badjatia N. Acute Effects of Nimodipine on Cerebral Vasculature and Brain Metabolism in High Grade Subarachnoid Hemorrhage Patients. Neurocritical Care 2012, 16: 363-367. PMID: 22262041, DOI: 10.1007/s12028-012-9670-8.Peer-Reviewed Original ResearchConceptsPoor-grade subarachnoid hemorrhageOral nimodipineSubarachnoid hemorrhageMmHg decreasePoor-grade SAH patientsDoses of nimodipineAdministration of nimodipineAneurysmal subarachnoid hemorrhageSubarachnoid hemorrhage patientsRoutine clinical careAcute PhysiologicAdequate CBFNimodipine administrationOnly medicationHemorrhage patientsMultimodality monitoringSAH patientsVasopressor medicationsBrain metabolismAcute effectsObservational studyMetabolic effectsCerebral vasculatureClinical careNimodipine
2011
Pharmacological curve fitting to analyze cutaneous adrenergic responses
Wenner MM, Wilson TE, Davis SL, Stachenfeld NS. Pharmacological curve fitting to analyze cutaneous adrenergic responses. Journal Of Applied Physiology 2011, 111: 1703-1709. PMID: 21868682, PMCID: PMC3233895, DOI: 10.1152/japplphysiol.00780.2011.Peer-Reviewed Original ResearchA linear model for estimation of neurotransmitter response profiles from dynamic PET data
Normandin MD, Schiffer WK, Morris ED. A linear model for estimation of neurotransmitter response profiles from dynamic PET data. NeuroImage 2011, 59: 2689-2699. PMID: 21767654, PMCID: PMC3702051, DOI: 10.1016/j.neuroimage.2011.07.002.Peer-Reviewed Original Research
2008
Decreased hippocampal volume on MRI is associated with increased extracellular glutamate in epilepsy patients
Cavus I, Pan JW, Hetherington HP, Abi‐Saab W, Zaveri HP, Vives KP, Krystal JH, Spencer SS, Spencer DD. Decreased hippocampal volume on MRI is associated with increased extracellular glutamate in epilepsy patients. Epilepsia 2008, 49: 1358-1366. PMID: 18410365, DOI: 10.1111/j.1528-1167.2008.01603.x.Peer-Reviewed Original ResearchConceptsTemporal lobe epilepsyHippocampal volumeClinical factorsHippocampal atrophyEpileptogenic hippocampusGABA levelsNeurochemical levelsElevated extracellular glutamate levelsContralateral hippocampal volumeIntracranial EEG evaluationMedication-resistant epilepsyRefractory TLE patientsHigh seizure frequencyRelevant clinical factorsSmaller hippocampal volumesExtracellular glutamate levelsFebrile seizure historyTreatment of epilepsySeizure frequencyLobe epilepsySeizure historyTLE patientsAtrophic hippocampusGlutamate levelsExtracellular glutamateNeurometabolism in human epilepsy
Pan JW, Williamson A, Cavus I, Hetherington HP, Zaveri H, Petroff OA, Spencer DD. Neurometabolism in human epilepsy. Epilepsia 2008, 49: 31-41. PMID: 18304254, PMCID: PMC3657747, DOI: 10.1111/j.1528-1167.2008.01508.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrain DiseasesBrain MappingCarbon IsotopesDominance, CerebralElectrodes, ImplantedElectroencephalographyEpilepsygamma-Aminobutyric AcidGlucoseHippocampusHumansLimbic SystemMagnetic Resonance SpectroscopyMetabolic DiseasesMicrodialysisMitochondrial DiseasesNeural PathwaysNeuronsPositron-Emission TomographyRatsSynaptic TransmissionConceptsNeurometabolic dysfunctionMagnetic resonance spectroscopic imagingHuman epilepsyEpileptic brainHippocampal resectionSclerotic hippocampusPathophysiologic aspectsEpileptogenic processMicrodialysis measuresExtracellular glutamateEpileptic dysfunctionEnergetic dysfunctionHuman studiesDysfunctionNeurotransmitter cyclingNoninvasive functional imagingProfound decreaseMitochondrial injuryBrain functionEpilepsyFunctional imagingMetabolic imagingBrainIntracranial EEGNeurometabolismInitial Comparison of ntPET with Microdialysis Measurements of Methamphetamine-Induced Dopamine Release in Rats: Support for Estimation of Dopamine Curves from PET Data
Morris ED, Normandin MD, Schiffer WK. Initial Comparison of ntPET with Microdialysis Measurements of Methamphetamine-Induced Dopamine Release in Rats: Support for Estimation of Dopamine Curves from PET Data. Molecular Imaging And Biology 2008, 10: 67-73. PMID: 18176804, DOI: 10.1007/s11307-007-0124-1.Peer-Reviewed Original Research
2007
Estimating neurotransmitter kinetics with ntPET: A simulation study of temporal precision and effects of biased data
Normandin MD, Morris ED. Estimating neurotransmitter kinetics with ntPET: A simulation study of temporal precision and effects of biased data. NeuroImage 2007, 39: 1162-1179. PMID: 18023364, PMCID: PMC2271120, DOI: 10.1016/j.neuroimage.2007.09.046.Peer-Reviewed Original Research
2006
Differential effects of nicotinic antagonists perfused into the nucleus accumbens or the ventral tegmental area on cocaine-induced dopamine release in the nucleus accumbens of mice
Zanetti L, Picciotto MR, Zoli M. Differential effects of nicotinic antagonists perfused into the nucleus accumbens or the ventral tegmental area on cocaine-induced dopamine release in the nucleus accumbens of mice. Psychopharmacology 2006, 190: 189. PMID: 17061109, DOI: 10.1007/s00213-006-0598-6.Peer-Reviewed Original ResearchConceptsIntra-VTA perfusionVentral tegmental areaDA levelsNucleus accumbensCocaine-elicited increasesPerfusate levelsTegmental areaCocaine-induced dopamine releaseNicotinic acetylcholine receptor antagonistMesolimbic DA neuronsDihydro-β-erythroidineAcetylcholine receptor antagonistEffects of cocaineMesolimbic dopamine systemSubtype-specific mannerDA neuronsNAChR antagonistIntracerebral microdialysisNicotinic antagonistsReceptor antagonistNicotinic pathwayLocal perfusionDopamine releaseDopamine systemPerfusionAbolished cocaine reward in mice with a cocaine-insensitive dopamine transporter
Chen R, Tilley MR, Wei H, Zhou F, Zhou FM, Ching S, Quan N, Stephens RL, Hill ER, Nottoli T, Han DD, Gu HH. Abolished cocaine reward in mice with a cocaine-insensitive dopamine transporter. Proceedings Of The National Academy Of Sciences Of The United States Of America 2006, 103: 9333-9338. PMID: 16754872, PMCID: PMC1482610, DOI: 10.1073/pnas.0600905103.Peer-Reviewed Original ResearchConceptsRole of DATFunctional dopamine transporterDopamine transporterCocaine rewardSerotonin transporterNorepinephrine transporterExtracellular DAKnockout miceCocaine-insensitive dopamine transporterRole of NETNET knockout miceDAT knockout miceSelf-administer cocaineKnockin mouse lineMouse modelNucleus accumbensDopamine hypothesisPlace preferenceDA hypothesisLocomotor activityReward pathwayBehavioral effectsMiceMouse lines
2005
Continuous electroencephalogram monitoring in critically ill patients
Jette N, Hirsch LJ. Continuous electroencephalogram monitoring in critically ill patients. Current Neurology And Neuroscience Reports 2005, 5: 312-321. PMID: 15987616, DOI: 10.1007/s11910-005-0077-1.Peer-Reviewed Original ResearchConceptsContinuous EEG monitoringIll patientsPermanent neuronal injuryContinuous electroencephalogram monitoringStandard of careRhythmic EEG patternsNeuronal injuryCerebral ischemiaNonconvulsive seizuresNeurologic impairmentClinical managementContinuous brain monitoringElectroencephalogram monitoringEEG monitoringPatientsEEG patternsBrain monitoringFurther studiesSeizuresIndicationsRemarkable advancesIschemiaInjuryPrognosticationImpairmentExtracellular metabolites in the cortex and hippocampus of epileptic patients
Cavus I, Kasoff WS, Cassaday MP, Jacob R, Gueorguieva R, Sherwin RS, Krystal JH, Spencer DD, Abi‐Saab W. Extracellular metabolites in the cortex and hippocampus of epileptic patients. Annals Of Neurology 2005, 57: 226-235. PMID: 15668975, DOI: 10.1002/ana.20380.Peer-Reviewed Original ResearchConceptsGlutamate-glutamine cyclingEpileptogenic hippocampusGlutamate levelsEpileptic patientsImpaired glutamate reuptakeBasal glutamate levelsBrain energy metabolismHigher lactate levelsGlutamine/glutamate ratioPoor glucose utilizationEnergy metabolismNeurometabolic processesNonepileptogenic cortexEpileptogenic cortexGlutamate reuptakeNeocortical epilepsyExtracellular glutamateSeizure generationInterictal periodLactate levelsMicrodialysis methodExtracellular levelsNeuronal toxicityGlucose utilizationDepth electrodes
2004
Dopamine Modulates Release from Corticostriatal Terminals
Bamford NS, Robinson S, Palmiter RD, Joyce JA, Moore C, Meshul CK. Dopamine Modulates Release from Corticostriatal Terminals. Journal Of Neuroscience 2004, 24: 9541-9552. PMID: 15509741, PMCID: PMC6730145, DOI: 10.1523/jneurosci.2891-04.2004.Peer-Reviewed Original ResearchConceptsCorticostriatal terminalsMedium spiny neuronsD2 receptorsDD miceSpiny neuronsD2-like receptor agonist quinpiroleExtracellular striatal glutamateFM1-43 destainingNormal striatal functionReserpine-treated miceCortical glutamatergic neuronsReceptor agonist quinpiroleActivity-dependent releaseMidbrain dopamine neuronsFM1-43Styryl dye FM1-43Aberrant cytoarchitectureGlutamate densityStriatal stimulationStriatal glutamateDopamine depletionAgonist quinpiroleControl miceDopamine deficiencyGlutamatergic neurons
2003
Local Lactate Perfusion of the Ventromedial Hypothalamus Suppresses Hypoglycemic Counterregulation
Borg MA, Tamborlane WV, Shulman GI, Sherwin RS. Local Lactate Perfusion of the Ventromedial Hypothalamus Suppresses Hypoglycemic Counterregulation. Diabetes 2003, 52: 663-666. PMID: 12606506, DOI: 10.2337/diabetes.52.3.663.Peer-Reviewed Original ResearchConceptsCounterregulatory hormone responsesVentromedial hypothalamusHormone responseSprague-Dawley ratsGlucose-sensing mechanismHypoglycemic counterregulationSystemic hypoglycemiaHormonal suppressionLactate perfusionApproximate fourfold increaseGlucose metabolismMicrodialysis perfusionGlucose perfusionHormonal responsesHypoglycemic plateauHypoglycemiaPerfusionL-lactateExogenous glucoseFourfold increaseGlucoseLactateCl− flux through a non‐selective, stretch‐sensitive conductance influences the outer hair cell motor of the guinea‐pig
Rybalchenko V, Santos‐Sacchi J. Cl− flux through a non‐selective, stretch‐sensitive conductance influences the outer hair cell motor of the guinea‐pig. The Journal Of Physiology 2003, 547: 873-891. PMID: 12562920, PMCID: PMC2342734, DOI: 10.1111/j.1469-7793.2003.00873.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCarbenoxoloneCell MembraneChloride ChannelsChloridesCyclooxygenase InhibitorsElectric CapacitanceElectric ConductivityGadoliniumGuinea PigsHair Cells, Auditory, OuterIon Channel GatingMechanotransduction, CellularMembrane PotentialsMercuric ChlorideMicrodialysisNiflumic AcidOctanolsProteinsSulfonic AcidsConceptsOuter hair cell motorLateral membranesVoltage-dependent conformational changesLateral plasma membranePlasma membraneMotor proteinsCell motorProtein transitionsConformational changesRecent identificationPrestinSomatic motilityAllosteric modulationCL sensitivityAnion fluxHair cellsCochlear amplificationAcoustic ratesOuter hair cellsAlternative mechanismComplicated roleMembranePronounced shiftCellsAmplification
2002
Acute and long‐term changes in the mesolimbic dopamine pathway after systemic or local single nicotine injections
Ferrari R, Le Novère N, Picciotto MR, Changeux JP, Zoli M. Acute and long‐term changes in the mesolimbic dopamine pathway after systemic or local single nicotine injections. European Journal Of Neuroscience 2002, 15: 1810-1818. PMID: 12081661, DOI: 10.1046/j.1460-9568.2001.02009.x.Peer-Reviewed Original ResearchMeSH KeywordsAmphetamineAnimalsDopamineDopamine Plasma Membrane Transport ProteinsDrug Administration RoutesExtracellular SpaceHabituation, PsychophysiologicMaleMembrane GlycoproteinsMembrane Transport ProteinsMicrodialysisMotor ActivityNerve Tissue ProteinsNeural PathwaysNeuronal PlasticityNicotineNucleus AccumbensPresynaptic TerminalsRatsRats, Sprague-DawleyReceptors, AMPAReceptors, N-Methyl-D-AspartateRNA, MessengerSubstance-Related DisordersTime FactorsTyrosine 3-MonooxygenaseVentral Tegmental AreaConceptsDialysate DA levelsGluR1 mRNA levelsSingle nicotine injectionNicotine administrationDA levelsMesolimbic dopamine pathwayNicotine injectionTyrosine hydroxylaseDopamine pathwayMRNA levelsBasal DA levelsExtracellular DA levelsMesolimbic DA pathwaySystemic intraperitoneal injectionTH mRNA levelsIntra-accumbens infusion
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