2001
Contribution of net hepatic glycogen synthesis to disposal of an oral glucose load in humans
Petersen K, Cline G, Gerard D, Magnusson I, Rothman D, Shulman G. Contribution of net hepatic glycogen synthesis to disposal of an oral glucose load in humans. Metabolism 2001, 50: 598-601. PMID: 11319724, DOI: 10.1053/meta.2001.22561.Peer-Reviewed Original ResearchConceptsHepatic glycogen synthesisOral glucose loadGlucose loadMagnetic resonance imagingLiver glycogen synthesisNet hepatic glycogen synthesisLiver volumeGlycogen synthesisWhole-body glucose disposalGlycogen contentHepatic glycogen concentrationIngestion of glucoseLiver glycogen contentHepatic glycogen contentIdentical glucose loadHepatic UDP-glucoseGlucose disposalGroup 2Group 1Direct pathwayResonance imagingGlycogen concentrationMean maximum rateLiverIngestion
2000
Regulation of myocardial [13C]glucose metabolism in conscious rats
McNulty P, Cline G, Whiting J, Shulman G. Regulation of myocardial [13C]glucose metabolism in conscious rats. AJP Heart And Circulatory Physiology 2000, 279: h375-h381. PMID: 10899078, DOI: 10.1152/ajpheart.2000.279.1.h375.Peer-Reviewed Original Research
1999
Determination of the rate of the glutamate/glutamine cycle in the human brain by in vivo 13C NMR
Shen J, Petersen K, Behar K, Brown P, Nixon T, Mason G, Petroff O, Shulman G, Shulman R, Rothman D. Determination of the rate of the glutamate/glutamine cycle in the human brain by in vivo 13C NMR. Proceedings Of The National Academy Of Sciences Of The United States Of America 1999, 96: 8235-8240. PMID: 10393978, PMCID: PMC22218, DOI: 10.1073/pnas.96.14.8235.Peer-Reviewed Original ResearchConceptsGlutamate/glutamine cycleGlutamine cycleCerebral cortexMin/Rat cerebral cortexVivo 13C NMR spectraGlucose oxidation ratesHuman brainGlucose oxidationGlutamatergic activityRat modelTricarboxylic acid cycle rateParietal lobeHuman cortexCortexTime courseBrainGlutamine synthesisMajor metabolic fluxCycle rateTricarboxylic acid cycleHigh levelsInfusionRatsAcid cycle
1998
A novel 13C NMR method to assess intracellular glucose concentration in muscle, in vivo
Cline G, Jucker B, Trajanoski Z, Rennings A, Shulman G. A novel 13C NMR method to assess intracellular glucose concentration in muscle, in vivo. American Journal Of Physiology 1998, 274: e381-e389. PMID: 9486172, DOI: 10.1152/ajpendo.1998.274.2.e381.Peer-Reviewed Original Research
1997
13C and 31P NMR Studies on the Effects of Increased Plasma Free Fatty Acids on Intramuscular Glucose Metabolism in the Awake Rat*
Jucker B, Rennings A, Cline G, Shulman G. 13C and 31P NMR Studies on the Effects of Increased Plasma Free Fatty Acids on Intramuscular Glucose Metabolism in the Awake Rat*. Journal Of Biological Chemistry 1997, 272: 10464-10473. PMID: 9099689, DOI: 10.1074/jbc.272.16.10464.Peer-Reviewed Original ResearchMeSH KeywordsAlanineAnimalsCarbon IsotopesFatty Acids, NonesterifiedGlucoseGlucose Clamp TechniqueGlucose-6-PhosphateGlycogenGlycolysisHyperinsulinismInfusions, IntravenousInsulinKetonesKineticsLactatesMagnetic Resonance SpectroscopyModels, BiologicalMuscle, SkeletalPhosphorusPyruvatesRatsRats, Sprague-DawleyWakefulnessConceptsPlasma free fatty acids
1995
Mass and Positional Isotopomer Analysis of Glucose Metabolism in Periportal and Pericentral Hepatocytes(*)
Cline G, Shulman G. Mass and Positional Isotopomer Analysis of Glucose Metabolism in Periportal and Pericentral Hepatocytes(*). Journal Of Biological Chemistry 1995, 270: 28062-28067. PMID: 7499292, DOI: 10.1074/jbc.270.47.28062.Peer-Reviewed Original ResearchTriiodothyronine treatment increases substrate cycling between pyruvate carboxylase and malic enzyme in perfused rat liver
Petersen K, Blair J, Shulman G. Triiodothyronine treatment increases substrate cycling between pyruvate carboxylase and malic enzyme in perfused rat liver. Metabolism 1995, 44: 1380-1383. PMID: 7476321, DOI: 10.1016/0026-0495(95)90133-7.Peer-Reviewed Original ResearchConceptsMalic enzymeRelative carbon fluxPyruvate kinaseCarbon fluxesAlanine C2Pyruvate carboxylase fluxSubstrate cyclingKinase activityMalic enzyme activityPyruvate kinase activityPyruvate carboxylaseKinaseEnzymeEnzyme activityCarboxylaseNormal rat liverRat liverNuclear magnetic resonance spectroscopyRelative rolesT3 treatmentOxaloacetateCyclingRecirculating systemPyruvate
1994
Localized 13C NMR Spectroscopy in the Human Brain of Amino Acid Labeling from d‐[1‐13C]Glucose
Gruetter R, Novotny E, Boulware S, Mason G, Rothman D, Shulman G, Prichard J, Shulman R. Localized 13C NMR Spectroscopy in the Human Brain of Amino Acid Labeling from d‐[1‐13C]Glucose. Journal Of Neurochemistry 1994, 63: 1377-1385. PMID: 7931289, DOI: 10.1046/j.1471-4159.1994.63041377.x.Peer-Reviewed Original Research
1993
Non-Invasive Measurements of the Cerebral Steady-State Glucose Concentration and Transport in Humans by 13C Nuclear Magnetic Resonance
Gruetter R, Novotny E, Boulware S, Rothman D, Mason G, Shulman G, Tamborlane W, Shulman R. Non-Invasive Measurements of the Cerebral Steady-State Glucose Concentration and Transport in Humans by 13C Nuclear Magnetic Resonance. Advances In Experimental Medicine And Biology 1993, 331: 35-40. PMID: 8333347, DOI: 10.1007/978-1-4615-2920-0_7.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentBlood GlucoseBlood-Brain BarrierBrainCarbon IsotopesGlucoseHumansMagnetic Resonance Spectroscopy
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 ResearchMeSH KeywordsAnimalsBrainCarbon IsotopesElectroshockFemaleHydrogenLactatesMagnetic Resonance SpectroscopyRabbitsConceptsBlood 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
1991
Quantitation of Hepatic Glycogenolysis And Gluconeogenesis in Fasting Humans With 13C NMR
Rothman D, Magnusson I, Katz L, Shulman R, Shulman G. Quantitation of Hepatic Glycogenolysis And Gluconeogenesis in Fasting Humans With 13C NMR. Science 1991, 254: 573-576. PMID: 1948033, DOI: 10.1126/science.1948033.Peer-Reviewed Original Research