2001
Tracking Brain Volume Changes in C57BL/6J and ApoE-Deficient Mice in a Model of Neurodegeneration: A 5-Week Longitudinal Micro-MRI Study
McDaniel B, Sheng H, Warner D, Hedlund L, Benveniste H. Tracking Brain Volume Changes in C57BL/6J and ApoE-Deficient Mice in a Model of Neurodegeneration: A 5-Week Longitudinal Micro-MRI Study. NeuroImage 2001, 14: 1244-1255. PMID: 11707081, DOI: 10.1006/nimg.2001.0934.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApolipoproteins EAtrophyBrainBrain IschemiaBrain MappingCerebral VentriclesDisease Models, AnimalHippocampusImage EnhancementImage Processing, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingMaleMiceMice, Inbred C57BLMice, Neurologic MutantsMicroscopyNeurodegenerative DiseasesProsencephalonConceptsApoE-deficient miceModels of neurodegenerationPostischemic dayBrain atrophyMouse modelNeurodegenerative diseasesDorsal hippocampal volumeBrain volume changesMin of ischemiaHigh signal intensity areaTransgenic mouse modelProgression of pathologyCorresponding time pointsSignal intensity areaMagnetic resonance imagingHigh-resolution MRIT1-weighted MR imagingC57 miceDorsal hippocampusHippocampal volumeClinical conditionsIschemiaMRI studiesPredetermined protocolCognitive decline
2000
Magnetic Resonance Microscopy of the C57BL Mouse Brain
Benveniste H, Kim K, Zhang L, Johnson G. Magnetic Resonance Microscopy of the C57BL Mouse Brain. NeuroImage 2000, 11: 601-611. PMID: 10860789, DOI: 10.1006/nimg.2000.0567.Peer-Reviewed Original Research
1995
Nitric oxide synthase inhibition and extracellular glutamate concentration after cerebral ischemia/reperfusion.
Zhang J, Benveniste H, Klitzman B, Piantadosi C. Nitric oxide synthase inhibition and extracellular glutamate concentration after cerebral ischemia/reperfusion. Stroke 1995, 26: 298-304. PMID: 7530389, DOI: 10.1161/01.str.26.2.298.Peer-Reviewed Original ResearchConceptsIschemia/reperfusionBlood-brain barrierCerebral blood flowBrain ischemia/reperfusionExcitatory amino acidsExtracellular glutamate concentrationL-NAMEBlood flowGlutamate concentrationSynthase inhibitionL-arginineExcitatory amino acid toxicityL-NAME-treated ratsPostischemic cerebral blood flowNitric oxide synthase inhibitionCerebral ischemia/reperfusionBlood-brain barrier functionL-arginine methyl esterCerebral blood flow responseBlood-brain barrier permeabilityGlobal brain ischemia/reperfusionElevated glutamate concentrationsImmediate postischemic periodInterstitial glutamate concentrationL-NAME administration
1993
Inhibition of nitric oxide synthase increases extracellular cerebral glutamate concentration after global ischemia
Zhang J, Benveniste H, Piantadosi C. Inhibition of nitric oxide synthase increases extracellular cerebral glutamate concentration after global ischemia. Neuroscience Letters 1993, 157: 179-182. PMID: 7694195, DOI: 10.1016/0304-3940(93)90731-y.Peer-Reviewed Original ResearchConceptsGlutamate releaseGlutamate concentrationNitric oxide synthase inhibitionCerebral glutamate concentrationsOxide synthase inhibitionGlobal brain ischemiaInhibition of NOSNitric oxide synthaseExtracellular glutamate releaseCerebral microdialysisBrain ischemiaForebrain ischemiaControl ratsGlobal ischemiaNOS inhibitorOxide synthaseSynthase inhibitionCarotid arteryBrain flowDialysis probeIschemiaDialysate concentrationsControl valuesRatsReperfusionMicrodialysis measurements of PGD2, TXB2 and 6-keto-PGF1α in rat CA1 hippocampus during transient cerebral ischemia
Huttemeier P, Kamiyama Y, Su M, Watkins W, Benveniste H. Microdialysis measurements of PGD2, TXB2 and 6-keto-PGF1α in rat CA1 hippocampus during transient cerebral ischemia. Prostaglandins 1993, 45: 177-187. PMID: 8430228, DOI: 10.1016/0090-6980(93)90033-4.Peer-Reviewed Original ResearchConceptsCerebral ischemiaPGF1 alphaMicrodialysis probeRat CA1 hippocampusGlobal cerebral ischemiaTransient cerebral ischemiaRole of PGD2Arachidonic acid metabolismAverage peak concentrationDistinct brain regionsIschemic brainEicosanoid concentrationsCA1 hippocampusEicosanoid releaseAA metabolitesPG metabolitesMicrodialysis measurementsBaseline levelsBrain regionsIschemiaPGD2TXB2Implanted microdialysis probesPeak concentrationAcid metabolismIschemia as an Excitotoxic Lesion: Protection Against Hippocampal Nerve Cell Loss by Denervation
Diemer N, Johansen F, Benveniste H, Bruhn T, Berg M, Valente E, Jørgensen M. Ischemia as an Excitotoxic Lesion: Protection Against Hippocampal Nerve Cell Loss by Denervation. Acta Neurochirurgica Supplement 1993, 57: 94-101. PMID: 8380675, DOI: 10.1007/978-3-7091-9266-5_14.Peer-Reviewed Original ResearchConceptsPyramidal neuronsIschemic neuron damageVulnerable nerve cellsTransient cerebral ischemiaGABA-ergic interneuronsNerve cell lossMin of ischemiaHippocampal pyramidal neuronsRelease of glutamateExtracellular glutamate releaseKainate/Neuroexcitatory mechanismsNeuron damagePostischemic periodCerebral ischemiaHilus cellsPostischemic hypoperfusionCalcium blockersGlutamate releaseIntact innervationIschemic animalsDenervated ratsDentate hilusReceptor autoradiographyCA1 neurons
1989
Ischemic Damage in Hippocampal CA1 is Dependent on Glutamate Release and Intact Innervation from CA3
Benveniste H, Jørgensen M, Sandberg M, Christensen T, Hagberg H, Diemer N. Ischemic Damage in Hippocampal CA1 is Dependent on Glutamate Release and Intact Innervation from CA3. Cerebrovascular And Brain Metabolism Reviews 1989, 9: 629-639. PMID: 2570785, DOI: 10.1038/jcbfm.1989.90.Peer-Reviewed Original ResearchConceptsCA1 regionPyramidal cellsGlutamate releaseIntact innervationHippocampal tissueCA1 tissueInjection siteIschemia-induced releaseIschemia-induced damageTransient global ischemiaCA1 pyramidal cellsRelease of glutamateGlutamatergic afferentsIschemic damageHippocampal CA1CA1 pyramidsGlobal ischemiaCA3 regionPathogenetic significanceIschemiaNeurotoxic potentialCA3CA1GlutamateInnervation
1988
Calcium accumulation by glutamate receptor activation is involved in hippocampal cell damage after ischemia
Benveniste H, Jørgensen M, Diemer N, Hansen A. Calcium accumulation by glutamate receptor activation is involved in hippocampal cell damage after ischemia. Acta Neurologica Scandinavica 1988, 78: 529-536. PMID: 2906199, DOI: 10.1111/j.1600-0404.1988.tb03697.x.Peer-Reviewed Original ResearchConceptsGlutamate N-methyl-D-aspartate receptorN-methyl-D-aspartate receptorsCell damageNerve cell destructionComplete cerebral ischemiaBrain cell damageMin of ischemiaOnset of ischemiaHippocampal cell damageGlutamate receptor activationCA 1 regionRole of intracellularCerebral ischemiaIschemic periodBilateral destructionDenervated hippocampusAfferent inputSynaptic transmissionCalcium influxIschemiaCompetitive antagonistReceptor activationHistological studyCell destructionCalcium accumulationEarly Postischemic 45Ca Accumulation in Rat Dentate Hilus
Benveniste H, Diemer N. Early Postischemic 45Ca Accumulation in Rat Dentate Hilus. Cerebrovascular And Brain Metabolism Reviews 1988, 8: 713-719. PMID: 3417798, DOI: 10.1038/jcbfm.1988.118.Peer-Reviewed Original Research
1987
Cellular reactions to implantation of a microdialysis tube in the rat hippocampus
Benveniste H, Diemer N. Cellular reactions to implantation of a microdialysis tube in the rat hippocampus. Acta Neuropathologica 1987, 74: 234-238. PMID: 3673515, DOI: 10.1007/bf00688186.Peer-Reviewed Original ResearchConceptsMicrodialysis tubeNumber of astrocytesAdjacent tissue reactionExtracellular neurotransmitter concentrationsNormal neuropilGranuloma formationOccasional hemorrhageRat hippocampusRat dorsalCollagen depositsAstrocyte processesTissue changesNeurotransmitter concentrationsFiber implantationTissue reactionAstrocytesImplantationNeuropilCellular reactionsDaysOptimal timeRegional Cerebral Glucose Phosphorylation and Blood Flow After Insertion of a Microdialysis Fiber Through the Dorsal Hippocampus in the Rat
Benveniste H, Drejer J, Schousboe A, Diemer N. Regional Cerebral Glucose Phosphorylation and Blood Flow After Insertion of a Microdialysis Fiber Through the Dorsal Hippocampus in the Rat. Journal Of Neurochemistry 1987, 49: 729-734. PMID: 3612121, DOI: 10.1111/j.1471-4159.1987.tb00954.x.Peer-Reviewed Original ResearchConceptsLocal cerebral blood flowBlood flowDorsal hippocampusGlucose metabolismMicrodialysis fibersLocal cerebral glucose metabolismCerebral glucose metabolismCerebral blood flowRat dorsal hippocampusGlucose phosphorylationNear normalizationFocal disturbanceRecovery periodPronounced disturbancesHippocampusRatsImplantationMetabolismPhosphorylationRecovery timeGliosisSlight reductionLCMRglcLCMRglu
1985
Cellular Origin of Ischemia‐Induced Glutamate Release from Brain Tissue In Vivo and In Vitro
Drejer J, Benveniste H, Diemer N, Schousboe A. Cellular Origin of Ischemia‐Induced Glutamate Release from Brain Tissue In Vivo and In Vitro. Journal Of Neurochemistry 1985, 45: 145-151. PMID: 2860206, DOI: 10.1111/j.1471-4159.1985.tb05486.x.Peer-Reviewed Original ResearchConceptsPotassium-induced releaseGlutamatergic neuronsAspartate uptakeConditions of hypoglycemiaCultured glutamatergic neuronsTransient cerebral ischemiaHigh potassiumExtracellular glutamate contentCerebral ischemiaGlutamate releaseTransmitter poolExtracellular glutamateMicrodialysis techniqueIschemiaBrain tissuePotassium stimulationPerfusion mediumHypoglycemiaGlutamate contentNeuronsInduced increasesCellular originVivo experimentsAstrocytesPrevious reports
1984
Elevation of the Extracellular Concentrations of Glutamate and Aspartate in Rat Hippocampus During Transient Cerebral Ischemia Monitored by Intracerebral Microdialysis
Benveniste H, Drejer J, Schousboe A, Diemer N. Elevation of the Extracellular Concentrations of Glutamate and Aspartate in Rat Hippocampus During Transient Cerebral Ischemia Monitored by Intracerebral Microdialysis. Journal Of Neurochemistry 1984, 43: 1369-1374. PMID: 6149259, DOI: 10.1111/j.1471-4159.1984.tb05396.x.Peer-Reviewed Original ResearchConceptsGamma-aminobutyric acidCerebral ischemiaIschemic periodTransient complete cerebral ischemiaTransient cerebral ischemiaComplete cerebral ischemiaExtracellular contentAmino acid glutamateDiameter dialysisIntracerebral microdialysisConcentrations of alanineExtracellular glutamateRat hippocampusCertain neuronsTaurine concentrationsIschemiaExtracellular concentrationHippocampusExtracellular fluidRinger's solutionGlutamateSame periodAspartateCausal factorsPeriod