2007
Altered cerebral glucose and acetate metabolism in succinic semialdehyde dehydrogenase‐deficient mice: evidence for glial dysfunction and reduced glutamate/glutamine cycling
Chowdhury GM, Gupta M, Gibson KM, Patel AB, Behar KL. Altered cerebral glucose and acetate metabolism in succinic semialdehyde dehydrogenase‐deficient mice: evidence for glial dysfunction and reduced glutamate/glutamine cycling. Journal Of Neurochemistry 2007, 103: 2077-2091. PMID: 17854388, DOI: 10.1111/j.1471-4159.2007.04887.x.Peer-Reviewed Original ResearchMeSH KeywordsAcetatesAmino AcidsAnimalsAnimals, NewbornBlood GlucoseCarbon IsotopesCerebral CortexGamma-Aminobutyric AcidGlutamate-Ammonia LigaseGlutamic AcidGlutamineImage Processing, Computer-AssistedMagnetic Resonance SpectroscopyMiceMice, KnockoutNeurogliaSodium OxybateSuccinate-Semialdehyde DehydrogenaseTime FactorsConceptsSSADH deficiencyLevels of GABAGlutamate/glutamine cyclingSuccinic semialdehyde dehydrogenase‐deficient miceGlutamine-C4Cerebral metabolismCerebral glucoseCortical extractsGlial dysfunctionIntraperitoneal infusionSuccinic semialdehyde dehydrogenaseGABA-C2Excessive elevationNeurotransmitter glutamateGABA synthesisGABAMiceGHBGlutamateGlutamine metabolismAspartate C3GliaCortexGlutamine cyclingGlial substrate
2006
Evidence that GAD65 mediates increased GABA synthesis during intense neuronal activity in vivo
Patel AB, de Graaf RA, Martin DL, Battaglioli G, Behar KL. Evidence that GAD65 mediates increased GABA synthesis during intense neuronal activity in vivo. Journal Of Neurochemistry 2006, 97: 385-396. PMID: 16539672, DOI: 10.1111/j.1471-4159.2006.03741.x.Peer-Reviewed Original ResearchMeSH Keywords4-Aminobutyrate TransaminaseAnimalsAnticonvulsantsBicucullineBlotting, WesternDose-Response Relationship, DrugGABA AntagonistsGamma-Aminobutyric AcidGlutamate DecarboxylaseIsoenzymesMagnetic Resonance SpectroscopyMaleProtein IsoformsRatsRats, Sprague-DawleySeizuresTime FactorsVigabatrin
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
Changes in N-acetylaspartate and myo-inositol detected in the cerebral cortex of hamsters with Creutzfeldt-Jakob disease
Behar K, Boucher R, Fritch W, Manuelidis L. Changes in N-acetylaspartate and myo-inositol detected in the cerebral cortex of hamsters with Creutzfeldt-Jakob disease. Magnetic Resonance Imaging 1998, 16: 963-968. PMID: 9814779, DOI: 10.1016/s0730-725x(98)00109-x.Peer-Reviewed Original ResearchConceptsCreutzfeldt-Jakob diseaseAge-matched controlsCerebral cortexHuman Creutzfeldt-Jakob diseaseMagnetic resonance spectroscopy studySyrian hamster brainHIV dementiaPathogenetic pathwaysCortical levelN-acetylaspartateTerminal diseaseAlzheimer's diseaseMyo-inositolDiseaseNeurodegenerative diseasesHamster brainMetabolite levelsSignificant decreaseHamstersDementiaCortexSignificant changesLate changesWeight metabolitesDays
1996
Human Brain γ‐Aminobutyric Acid Levels and Seizure Control Following Initiation of Vigabatrin Therapy
Petroff O, Behar K, Mattson R, Rothman D. Human Brain γ‐Aminobutyric Acid Levels and Seizure Control Following Initiation of Vigabatrin Therapy. Journal Of Neurochemistry 1996, 67: 2399-2404. PMID: 8931472, DOI: 10.1046/j.1471-4159.1996.67062399.x.Peer-Reviewed Original ResearchConceptsBrain GABA contentImproved seizure controlBrain GABA levelsSeizure controlVigabatrin treatmentGABA levelsDaily doseAntiepileptic drugsOccipital lobeBrain gamma-aminobutyric acid (GABA) concentrationsGABA concentrationHuman brain GABA levelsGABA contentGamma-aminobutyric acid concentrationΓ-aminobutyric acid (GABA) levelsComplex partial seizuresNovel antiepileptic drugBrain GABA concentrationsSeizure frequencyPartial seizuresVigabatrin therapySustained elevationHuman occipital lobeGABA synthesisAcid levelsHuman brain GABA levels rise after initiation of vigabatrin therapy but fail to rise further with increasing dose
Petroff O, Rothman D, Behar K, Mattson R. Human brain GABA levels rise after initiation of vigabatrin therapy but fail to rise further with increasing dose. Neurology 1996, 46: 1459-1463. PMID: 8628502, DOI: 10.1212/wnl.46.5.1459.Peer-Reviewed Original Research
1989
NMR Spectroscopic Investigation of the Recovery of Energy and Acid—Base Homeostasis in the Cat Brain after Prolonged Ischemia
Behar K, Rothman D, Hossmann K. NMR Spectroscopic Investigation of the Recovery of Energy and Acid—Base Homeostasis in the Cat Brain after Prolonged Ischemia. Cerebrovascular And Brain Metabolism Reviews 1989, 9: 655-665. PMID: 2777935, DOI: 10.1038/jcbfm.1989.93.Peer-Reviewed Original Research
1984
Detection of cerebral lactate in vivo during hypoxemia by 1H NMR at relatively low field strengths (1.9 T).
Behar K, Rothman D, Shulman R, Petroff O, Prichard J. Detection of cerebral lactate in vivo during hypoxemia by 1H NMR at relatively low field strengths (1.9 T). Proceedings Of The National Academy Of Sciences Of The United States Of America 1984, 81: 2517-2519. PMID: 6585812, PMCID: PMC345093, DOI: 10.1073/pnas.81.8.2517.Peer-Reviewed Original Research
1981
In Vivo Carbon-13 Nuclear Magnetic Resonance Studies of Mammals
Alger J, Sillerud L, Behar K, Gillies R, Shulman R, Gordon R, Shaw D, Hanley P. In Vivo Carbon-13 Nuclear Magnetic Resonance Studies of Mammals. Science 1981, 214: 660-662. PMID: 7292005, DOI: 10.1126/science.7292005.Peer-Reviewed Original Research