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 spectroscopy
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
1998
15N-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
1992
NMR Determination of Intracerebral Glucose Concentration and Transport Kinetics in Rat Brain
Mason G, Behar K, Rothman D, Shulman R. NMR Determination of Intracerebral Glucose Concentration and Transport Kinetics in Rat Brain. Cerebrovascular And Brain Metabolism Reviews 1992, 12: 448-455. PMID: 1569138, DOI: 10.1038/jcbfm.1992.62.Peer-Reviewed Original ResearchNMR Determination of the TCA Cycle Rate and α-Ketoglutarate/Glutamate Exchange Rate in Rat Brain
Mason G, Rothman D, Behar K, Shulman R. NMR Determination of the TCA Cycle Rate and α-Ketoglutarate/Glutamate Exchange Rate in Rat Brain. Cerebrovascular And Brain Metabolism Reviews 1992, 12: 434-447. PMID: 1349022, DOI: 10.1038/jcbfm.1992.61.Peer-Reviewed Original Research
1991
High Resolution NMR Studies of Cerebral Glucose Metabolism in Rats and Humans
Shulman R, Rothman D, Behar K, Prichard J. High Resolution NMR Studies of Cerebral Glucose Metabolism in Rats and Humans. Advances In Experimental Medicine And Biology 1991, 291: 5-8. PMID: 1927690, DOI: 10.1007/978-1-4684-5931-9_2.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus Statements
1990
13C NMR relaxation times of hepatic glycogen in vitro and in vivo.
Zang L, Laughlin M, Rothman D, Shulman R. 13C NMR relaxation times of hepatic glycogen in vitro and in vivo. Biochemistry 1990, 29: 6815-20. PMID: 2397215, DOI: 10.1021/bi00481a009.Peer-Reviewed Original Research
1987
Combined 1H and 31P NMR Studies of the Rat Brain in Vivo: Effects of Altered Intracellular pH on Metabolisma
BEHAR K, ROTHMAN D, FITZPATRICK S, HETHERINGTON H, SHULMAN R. Combined 1H and 31P NMR Studies of the Rat Brain in Vivo: Effects of Altered Intracellular pH on Metabolisma. Annals Of The New York Academy Of Sciences 1987, 508: 81-88. PMID: 3125776, DOI: 10.1111/j.1749-6632.1987.tb32896.x.Chapters
1985
1H-Observe/13C-decouple spectroscopic measurements of lactate and glutamate in the rat brain in vivo.
Rothman D, Behar K, Hetherington H, Hollander J, Bendall M, Petroff O, Shulman R. 1H-Observe/13C-decouple spectroscopic measurements of lactate and glutamate in the rat brain in vivo. Proceedings Of The National Academy Of Sciences Of The United States Of America 1985, 82: 1633-1637. PMID: 2858850, PMCID: PMC397326, DOI: 10.1073/pnas.82.6.1633.Peer-Reviewed Original ResearchApplication of multipulse NMR to observe 13C‐labeled metabolites in biological systems
Bendall M, Hollander J, Arias‐Mendoza F, Rothman D, Behar K, Shulman R. Application of multipulse NMR to observe 13C‐labeled metabolites in biological systems. Magnetic Resonance In Medicine 1985, 2: 56-64. PMID: 3831677, DOI: 10.1002/mrm.1910020107.Peer-Reviewed Original Research
1984
Homonuclear 1H double-resonance difference spectroscopy of the rat brain in vivo.
Rothman D, Behar K, Hetherington H, Shulman R. Homonuclear 1H double-resonance difference spectroscopy of the rat brain in vivo. Proceedings Of The National Academy Of Sciences Of The United States Of America 1984, 81: 6330-6334. PMID: 6149543, PMCID: PMC391917, DOI: 10.1073/pnas.81.20.6330.Peer-Reviewed Original Research