2009
Baseline brain energy supports the state of consciousness
Shulman RG, Hyder F, Rothman DL. Baseline brain energy supports the state of consciousness. Proceedings Of The National Academy Of Sciences Of The United States Of America 2009, 106: 11096-11101. PMID: 19549837, PMCID: PMC2708743, DOI: 10.1073/pnas.0903941106.Peer-Reviewed Original ResearchConceptsLoss of consciousnessBrain energyConscious stateHigh-frequency neuronal activityCerebral energy consumptionBrain energy consumptionCerebral energyEnsembles of neuronsRat brainSomatosensory responsesNeuronal activityGamma-band rangeNeuronal propertiesFiring rateSensory stimulationNeuronal signalingPET measurementsAnesthesiaFMRI patternsFMRI activity patternsOxygen consumptionState of consciousnessStimulationBehavioral abilitiesMagnetic resonance spectroscopyHypoxic Injury during Neonatal Development in Murine Brain: Correlation between In Vivo DTI Findings and Behavioral Assessment
Chahboune H, Ment LR, Stewart WB, Rothman DL, Vaccarino FM, Hyder F, Schwartz ML. Hypoxic Injury during Neonatal Development in Murine Brain: Correlation between In Vivo DTI Findings and Behavioral Assessment. Cerebral Cortex 2009, 19: 2891-2901. PMID: 19380380, PMCID: PMC2774398, DOI: 10.1093/cercor/bhp068.Peer-Reviewed Original ResearchConceptsChronic sublethal hypoxiaLow birth weight preterm infantsBirth weight preterm infantsHypoxia-induced modificationNeonatal rodent modelPreterm birth resultsWeight preterm infantsSignificant neurodevelopmental disabilitiesOpen field taskGreater locomotor activityPreterm infantsPreterm birthNeurodevelopmental consequencesBirth resultsHypoxic injurySomatosensory cortexCaudate putamenCallosal connectivityCorpus callosumBehavioral deficitsNeurodevelopmental disabilitiesRodent modelsNeonatal developmentDTI findingsSublethal hypoxiaChapter 21 Assessment of In Vivo Mitochondrial Metabolism by Magnetic Resonance Spectroscopy
Befroy DE, Petersen K, Rothman DL, Shulman GI. Chapter 21 Assessment of In Vivo Mitochondrial Metabolism by Magnetic Resonance Spectroscopy. Methods In Enzymology 2009, 457: 373-393. PMID: 19426879, PMCID: PMC3077057, DOI: 10.1016/s0076-6879(09)05021-6.Peer-Reviewed Original Research
2001
Glutamine is the major precursor for GABA synthesis in rat neocortex in vivo following acute GABA-transaminase inhibition
Patel A, Rothman D, Cline G, Behar K. Glutamine is the major precursor for GABA synthesis in rat neocortex in vivo following acute GABA-transaminase inhibition. Brain Research 2001, 919: 207-220. PMID: 11701133, DOI: 10.1016/s0006-8993(01)03015-3.Peer-Reviewed Original ResearchFlux control in the rat gastrocnemius glycogen synthesis pathway by in vivo13C/31P NMR spectroscopy
Chase J, Rothman D, Shulman R. Flux control in the rat gastrocnemius glycogen synthesis pathway by in vivo13C/31P NMR spectroscopy. AJP Endocrinology And Metabolism 2001, 280: e598-e607. PMID: 11254467, DOI: 10.1152/ajpendo.2001.280.4.e598.Peer-Reviewed Original ResearchConceptsGlycogen synthesisGlycogen synthesis pathwayInsulin-stimulated muscle glycogen synthesisMetabolic control analysisMuscle glycogen synthesisGlycogen synthaseSynthesis pathwayGlycogen synthesis rateFlux controlGSaseHyperglycemic glucose concentrationsSynthesis rateControl coefficientsHexokinaseRat gastrocnemius muscleRelative contributionNMR spectroscopyGlycolysisSynthasePathwayIn vivo13C NMR measurement of neurotransmitter glutamate cycling, anaplerosis and TCA cycle flux in rat brain during [2‐13C]glucose infusion
Sibson N, Mason G, Shen J, Cline G, Herskovits A, Wall J, Behar K, Rothman D, Shulman R. In vivo13C NMR measurement of neurotransmitter glutamate cycling, anaplerosis and TCA cycle flux in rat brain during [2‐13C]glucose infusion. Journal Of Neurochemistry 2001, 76: 975-989. PMID: 11181817, DOI: 10.1046/j.1471-4159.2001.00074.x.Peer-Reviewed Original ResearchConceptsGlutamate/glutamine cyclingCerebral cortexAstrocytic tricarboxylic acid cycleGlutamine cyclingRat cerebral cortexGlutamine synthesisDe novo glutamine synthesisAnesthetized ratsRat brainNeurotransmitter glutamateHyperammonemic conditionsGlutamate cyclingInfusionGlutamate precursorCortexBrainTCA cycle fluxAnaplerosisMajor metabolic fluxTricarboxylic acid cycleCycle flux
2000
Meeting Report: Transcranial Magnetic Stimulation and Studies of Human Cognition
Fitzpatrick S, Rothman D. Meeting Report: Transcranial Magnetic Stimulation and Studies of Human Cognition. Journal Of Cognitive Neuroscience 2000, 12: 704-709. PMID: 10936921, DOI: 10.1162/089892900562327.Peer-Reviewed Original ResearchProton MRS: GABA and glutamate.
Petroff O, Mattson R, Rothman D. Proton MRS: GABA and glutamate. Advances In Neurology 2000, 83: 261-71. PMID: 10999208.Peer-Reviewed Original Research
1999
New Approaches to Functional Neuroenergetics
Fitzpatrick S, Rothman D. New Approaches to Functional Neuroenergetics. Journal Of Cognitive Neuroscience 1999, 11: 467-471. PMID: 10507889, DOI: 10.1162/089892999563454.Peer-Reviewed Original ResearchEnergy on demand.
Magistretti P, Pellerin L, Rothman D, Shulman R. Energy on demand. Science 1999, 283: 496-7. PMID: 9988650, DOI: 10.1126/science.283.5401.496.Peer-Reviewed Original Research
1998
Functional Energy Metabolism:In vivo 13C-NMR Spectroscopy Evidence for Coupling of Cerebral Glucose Consumption and Gl utamatergic Neuronal Activity
Sibson N, Shen J, Mason G, Rothman D, Behar K, Shulman R. Functional Energy Metabolism:In vivo 13C-NMR Spectroscopy Evidence for Coupling of Cerebral Glucose Consumption and Gl utamatergic Neuronal Activity. Developmental Neuroscience 1998, 20: 321-330. PMID: 9778568, DOI: 10.1159/000017327.Peer-Reviewed Original ResearchConceptsRat brain cortexGlucose metabolismBrain cortexNeurotransmitter cyclingTotal glucose oxidationGlutamatergic synaptic activityCerebral glucose consumptionCerebral glucose metabolismFunctional activityFunctional imaging methodsGlucose oxidationOxidative glucose metabolismGlutamate neurotransmitter cyclingSynaptic activityNeuronal activityMild anesthesiaGlutamine synthesisMammalian brainNeurotransmitter releaseGlutamate cyclingEEG activityAmmonia metabolismNeurophysiological basisDetoxification componentsVivo results15N-NMR Spectroscopy Studies of Ammonia Transport and Glutamine Synthesis in the Hyperammonemic Rat Brain
Shen J, Sibson N, Cline G, Behar K, Rothman D, Shulman R. 15N-NMR Spectroscopy Studies of Ammonia Transport and Glutamine Synthesis in the Hyperammonemic Rat Brain. Developmental Neuroscience 1998, 20: 434-443. PMID: 9778582, DOI: 10.1159/000017341.Peer-Reviewed Original ResearchInterpreting functional imaging studies in terms of neurotransmitter cycling
Shulman R, Rothman D. Interpreting functional imaging studies in terms of neurotransmitter cycling. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 11993-11998. PMID: 9751778, PMCID: PMC21753, DOI: 10.1073/pnas.95.20.11993.Peer-Reviewed Original ResearchConceptsFunctional imaging experimentsNeurobiological processesFunctional magnetic resonance imagingBasis of neuroscienceSpecific mental processesFunctional imaging studiesFunctional imaging dataVivo 13C NMR measurementsCognitive psychologyCognitive tasksMental processesPsychological termsPsychological interpretationImaging experimentsNeuroscientific interpretationSensory stimulationPsychological designHuman brainFunctional imaging signalsNeurotransmitter cyclingParticular positron emission tomographyNeurotransmitter fluxBrain energy consumptionImaging studiesImaging dataStoichiometric coupling of brain glucose metabolism and glutamatergic neuronal activity
Sibson N, Dhankhar A, Mason G, Rothman D, Behar K, Shulman R. Stoichiometric coupling of brain glucose metabolism and glutamatergic neuronal activity. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 316-321. PMID: 9419373, PMCID: PMC18211, DOI: 10.1073/pnas.95.1.316.Peer-Reviewed Original ResearchConceptsGlutamatergic neuronal activityGlutamate neurotransmitter cyclingNeuronal activityGln synthesisBrain glucose metabolismSynaptic glutamate releaseGlc metabolismGlutamate releaseRat cortexSynaptic activityGlucose metabolismNeuronal functionBrain activation studiesTricarboxylic acid cycleCortexMetabolismAcid cycleActivation studiesAstrocytesNeuronsActivity
1997
In vivo 13C NMR measurements of cerebral glutamine synthesis as evidence for glutamate–glutamine cycling
Sibson N, Dhankhar A, Mason G, Behar K, Rothman D, Shulman R. In vivo 13C NMR measurements of cerebral glutamine synthesis as evidence for glutamate–glutamine cycling. Proceedings Of The National Academy Of Sciences Of The United States Of America 1997, 94: 2699-2704. PMID: 9122259, PMCID: PMC20152, DOI: 10.1073/pnas.94.6.2699.Peer-Reviewed Original Research
1996
Enzymatic phosphorylation of muscle glycogen synthase: a mechanism for maintenance of metabolic homeostasis.
Shulman R, Rothman D. Enzymatic phosphorylation of muscle glycogen synthase: a mechanism for maintenance of metabolic homeostasis. Proceedings Of The National Academy Of Sciences Of The United States Of America 1996, 93: 7491-7495. PMID: 8755501, PMCID: PMC38772, DOI: 10.1073/pnas.93.15.7491.Peer-Reviewed Original ResearchConceptsCovalent phosphorylationGlycogen synthaseGlycogen synthesisGlucose transportMuscle glycogen synthaseAllosteric activationMetabolic control analysisMetabolic homeostasisPhosphorylationGlycogenic fluxEnzymatic phosphorylationHexokinase stepGSaseMuscle cellsHomeostasisFractional activityMuscle glycogen synthesisSynthaseConcentrations of G6PG6P concentrationActivityEnzymeMechanismRoleHexokinase
1995
In vivo regulation of muscle glycogen synthase and the control of glycogen synthesis.
Shulman R, Bloch G, Rothman D. In vivo regulation of muscle glycogen synthase and the control of glycogen synthesis. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 8535-8542. PMID: 7567971, PMCID: PMC41002, DOI: 10.1073/pnas.92.19.8535.Peer-Reviewed Original ResearchConceptsCovalent phosphorylationGlycogen synthesisGlycogen synthaseMuscle glycogen synthaseVivo NMR methodsPositive allosteric effectorMetabolic control theoryAllosteric effectorsVivo regulationGSaseVivo NMR experimentsNMR experimentsPhosphorylationSynthesis fluxProximal stepMuscle glycogen synthesisSynthaseVivo NMRRegulationNMR methodsMetabolite levelsHuman muscleRat muscleEffectorsEnzyme
1994
Vigabatrin: Effects on Human Brain GABA Levels by Nuclear Magnetic Resonance Spectroscopy
Mattson R, Petroff O, Rothman D, Behar K. Vigabatrin: Effects on Human Brain GABA Levels by Nuclear Magnetic Resonance Spectroscopy. Epilepsia 1994, 35: s29-s32. PMID: 8039467, DOI: 10.1111/j.1528-1157.1994.tb05963.x.Peer-Reviewed Original ResearchConceptsBrain GABA levelsGABA levelsHuman brain GABA levelsGeneralized tonic-clonic seizuresTonic-clonic seizuresGamma-aminobutyric acid transaminaseNew antiepileptic drugsElevated brain GABA levelsTimes control valuesLong-term trialsDaily dosageAntiepileptic drugsClinical effectsGABA elevationCerebrospinal fluidSide effectsMagnetic resonance spectroscopyControl valuesIrreversible substrateResonance spectroscopyFirst studyDosageConcentrations 2VigabatrinSeizures
1993
NMR-Spectroscopic Investigation of Cerebral Reanimation After Prolonged Ischemia
Hossmann K, Behar K, Rothman D. NMR-Spectroscopic Investigation of Cerebral Reanimation After Prolonged Ischemia. Acta Neurochirurgica Supplement 1993, 57: 21-29. PMID: 8421952, DOI: 10.1007/978-3-7091-9266-5_3.Peer-Reviewed Original ResearchConceptsHour complete ischemiaResidual blood flowBlood flowComplete ischemiaBrain injuryComplete recoveryBrain energy stateIrreversible brain injuryDuration of ischemiaAppropriate therapeutic measuresRise of lactatePost-ischemic injuryN-acetyl aspartateNon-invasive assessmentBrain glucose contentDepth of anesthesiaLower metabolite levelsBlood reperfusionIschemia timeReflow phenomenonBrain metabolismContinuous non-invasive assessmentProlonged ischemiaTherapeutic measuresIschemia
1992
Cerebral Lactate Turnover after Electroshock: In vivo Measurements by 1H/13C Magnetic Resonance Spectroscopy
Petroff O, Novotny E, Avison M, Rothman D, Alger J, Ogino T, Shulman G, Prichard J. Cerebral Lactate Turnover after Electroshock: In vivo Measurements by 1H/13C Magnetic Resonance Spectroscopy. Cerebrovascular And Brain Metabolism Reviews 1992, 12: 1022-1029. PMID: 1400641, DOI: 10.1038/jcbfm.1992.139.Peer-Reviewed Original ResearchConceptsBlood lactateLactate poolNuclear magnetic resonance spectroscopyMetabolic stateBrain lactateBlood gasesBlood glucoseElevated lactateMagnetic resonance spectroscopyProlonged elevationRabbit brainPerchloric acid extractsPathological conditionsBrain activationBrainResonance spectroscopyLactate turnoverHigh resolution 1H NMRIntracellular pHElectroshockLactateHuman brainVivo 1HSignificant changesAcid extracts