2025
Reduced removal of waste products from energy metabolism takes center stage in human brain aging
Mangia S, DiNuzzo M, Ponticorvo S, Dienel G, Behar K, Benveniste H, Hyder F, Giove F, Herculano-Houzel S, Petroff O, Eberly L, Filip P, Michaeli S, Rothman D. Reduced removal of waste products from energy metabolism takes center stage in human brain aging. Scientific Reports 2025, 15: 8127. PMID: 40057554, PMCID: PMC11890754, DOI: 10.1038/s41598-025-90342-3.Peer-Reviewed Original Research
2022
Stress-level glucocorticoids increase fasting hunger and decrease cerebral blood flow in regions regulating eating
Bini J, Parikh L, Lacadie C, Hwang JJ, Shah S, Rosenberg SB, Seo D, Lam K, Hamza M, De Aguiar RB, Constable T, Sherwin RS, Sinha R, Jastreboff AM. Stress-level glucocorticoids increase fasting hunger and decrease cerebral blood flow in regions regulating eating. NeuroImage Clinical 2022, 36: 103202. PMID: 36126514, PMCID: PMC9486604, DOI: 10.1016/j.nicl.2022.103202.Peer-Reviewed Original ResearchConceptsCerebral blood flowRegional cerebral blood flowBlood flowMetabolic hormonesRandomized double-blind cross-over designDouble-blind cross-over designStress level glucocorticoidsPrimary sensory cortexPerfusion magnetic resonanceCross-over designMedial temporal gyrusWhole-brain voxelMedial brainstemSaline daysOvernight infusionCBF responseHunger ratingsPlasma insulinGlucocorticoid effectsHedonic signalsObesity riskLimbic regionsFood intakeNeural regulationDistinct brain networks
2021
Intravenous Infusion of Mesenchymal Stem Cells Enhances Therapeutic Efficacy of Reperfusion Therapy in Cerebral Ischemia
Kiyose R, Sasaki M, Kataoka-Sasaki Y, Nakazaki M, Nagahama H, Magota H, Oka S, Ukai R, Takemura M, Yokoyama T, Kocsis JD, Honmou O. Intravenous Infusion of Mesenchymal Stem Cells Enhances Therapeutic Efficacy of Reperfusion Therapy in Cerebral Ischemia. World Neurosurgery 2021, 149: e160-e169. PMID: 33618048, DOI: 10.1016/j.wneu.2021.02.056.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowInfused mesenchymal stem cellsReperfusion therapyPermanent MCAOIntravenous infusionMesenchymal stem cellsTherapeutic efficacyTransient middle cerebral artery occlusion modelMiddle cerebral artery occlusion modelArterial spin labeling magnetic resonance imagingArtery occlusion modelStandard therapeutic strategyTransient MCAO modelCerebral blood flowBehavioral functionsNon-favorable outcomeRat model systemStem cellsMCAO groupStroke inductionAcute strokeCerebral ischemiaNeurologic functionInfusion groupMCAO model
2020
Imaging and optogenetic modulation of vascular mural cells in the live brain
Tong L, Hill RA, Damisah EC, Murray KN, Yuan P, Bordey A, Grutzendler J. Imaging and optogenetic modulation of vascular mural cells in the live brain. Nature Protocols 2020, 16: 472-496. PMID: 33299155, DOI: 10.1038/s41596-020-00425-w.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsRegional cerebral blood flowMural cellsBlood-brain barrier maintenanceCerebral ischemia mouse modelAge-related neurodegenerative diseasesCerebral blood flowSmooth muscle cell physiologyBrain blood vesselsIschemia mouse modelVascular mural cellsBrain microvesselsHigh-resolution intravital imagingVascular disordersMouse modelBlood flowMuscle cell physiologyTransgenic miceCalcium transientsAlzheimer's diseaseCalcium imagingCell subtypesBarrier maintenanceNeurodegenerative diseasesTwo-photon optogeneticsBlood vessels
2019
Cellular Control of Brain Capillary Blood Flow: In Vivo Imaging Veritas
Grutzendler J, Nedergaard M. Cellular Control of Brain Capillary Blood Flow: In Vivo Imaging Veritas. Trends In Neurosciences 2019, 42: 528-536. PMID: 31255380, PMCID: PMC7386067, DOI: 10.1016/j.tins.2019.05.009.Peer-Reviewed Original ResearchConceptsCapillary blood flowBlood flowBrain capillary blood flowRegional cerebral blood flowCerebral blood flowRed blood cell deformabilityBlood cell deformabilityMicrovascular perfusionNeurovascular couplingMicrovascular flowBrain metabolitesMural cellsLevel-dependent changesNeural activationVessel diameterMicrovascular treeNeural activityCell deformabilityCell controlDirect visualizationMethodological standardsVasomotilityPerfusionControl
2017
Altered Regional Cerebral Blood Flow in Idiopathic Hypersomnia
Boucetta S, Montplaisir J, Zadra A, Lachapelle F, Soucy J, Gravel P, Dang-Vu T. Altered Regional Cerebral Blood Flow in Idiopathic Hypersomnia. Sleep 2017, 40: zsx140. PMID: 28958044, DOI: 10.1093/sleep/zsx140.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowCerebral blood flowIdiopathic hypersomniaBlood flowMedial prefrontal cortexSingle photon emissionDaytime sleepinessAltered regional cerebral blood flowRegional cerebral blood flow distributionRegional cerebral blood flow changesCerebral blood flow decreasesRegional cerebral blood flow decreasesCerebral blood flow distributionPrefrontal cortexCerebral blood flow changesBlood flow decreaseBrain perfusion patternsExcessive daytime sleepinessEye movement sleepBlood flow changesBlood flow distributionTemporo-occipital cortexAcute sleep deprivationPhoton emissionPosterior cingulate cortexIntravenous infusion of mesenchymal stem cells inhibits intracranial hemorrhage after recombinant tissue plasminogen activator therapy for transient middle cerebral artery occlusion in rats.
Nakazaki M, Sasaki M, Kataoka-Sasaki Y, Oka S, Namioka T, Namioka A, Onodera R, Suzuki J, Sasaki Y, Nagahama H, Mikami T, Wanibuchi M, Kocsis JD, Honmou O. Intravenous infusion of mesenchymal stem cells inhibits intracranial hemorrhage after recombinant tissue plasminogen activator therapy for transient middle cerebral artery occlusion in rats. Journal Of Neurosurgery 2017, 127: 917-926. PMID: 28059661, DOI: 10.3171/2016.8.jns16240.Peer-Reviewed Original ResearchConceptsTransient middle cerebral artery occlusionRecombinant tissue plasminogen activatorMiddle cerebral artery occlusionRegional cerebral blood flowCerebral artery occlusionMesenchymal stem cellsHemorrhagic eventsArtery occlusionEndothelial dysfunctionRtPA therapyIntracerebral hemorrhageIntravenous infusionIncidence rateNormal salineIntravenous recombinant tissue plasminogen activatorRecombinant tissue plasminogen activator therapyTissue plasminogen activator therapyInfused mesenchymal stem cellsMatrix metalloproteinase-9 levelsEarly behavioral recoveryNon-rtPA groupAcute ischemic strokeVascular endothelial dysfunctionExperimental stroke modelsMetalloproteinase-9 levels
2013
Nonconvulsive seizures after subarachnoid hemorrhage: Multimodal detection and outcomes
Claassen J, Perotte A, Albers D, Kleinberg S, Schmidt JM, Tu B, Badjatia N, Lantigua H, Hirsch LJ, Mayer SA, Connolly ES, Hripcsak G. Nonconvulsive seizures after subarachnoid hemorrhage: Multimodal detection and outcomes. Annals Of Neurology 2013, 74: 53-64. PMID: 23813945, PMCID: PMC3775941, DOI: 10.1002/ana.23859.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowAcute brain injuryBrain injuryCerebral physiologic effectsCerebral perfusion pressureSecondary brain injuryBrain tissue oxygenationSubarachnoid hemorrhage patientsCerebral blood flowGlobal brain metabolismElevated heart rateComplex physiologic processBlood pressureNonconvulsive seizuresHemorrhage patientsPerfusion pressureSubarachnoid hemorrhageBrain metabolismFunctional outcomeIntracranial pressureSeizure onsetPhysiologic effectsHeart rateOnly seizuresBlood flowEffects of Fructose vs Glucose on Regional Cerebral Blood Flow in Brain Regions Involved With Appetite and Reward Pathways
Page KA, Chan O, Arora J, Belfort-DeAguiar R, Dzuira J, Roehmholdt B, Cline GW, Naik S, Sinha R, Constable RT, Sherwin RS. Effects of Fructose vs Glucose on Regional Cerebral Blood Flow in Brain Regions Involved With Appetite and Reward Pathways. JAMA 2013, 309: 63-70. PMID: 23280226, PMCID: PMC4076145, DOI: 10.1001/jama.2012.116975.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowCerebral blood flowGlucose ingestionFructose ingestionFructose consumptionBlood flowGlucagon-like polypeptide-1Weight gainRegional CBF changesPrevalence of obesityHigh-fructose dietHealthy adult volunteersLower peak levelsConsumption of fructoseMagnetic resonance imaging sessionPosterior cingulate cortexWhole-brain analysisEffects of fructoseFunctional connectivity analysisSatiety hormonesSecondary outcomesDrink ingestionSystemic glucoseVoxel-level analysisInsulin resistance
2008
Anesthetic effects on regional CBF, BOLD, and the coupling between task‐induced changes in CBF and BOLD: An fMRI study in normal human subjects
Qiu M, Ramani R, Swetye M, Rajeevan N, Constable RT. Anesthetic effects on regional CBF, BOLD, and the coupling between task‐induced changes in CBF and BOLD: An fMRI study in normal human subjects. Magnetic Resonance In Medicine 2008, 60: 987-996. PMID: 18816821, PMCID: PMC2716171, DOI: 10.1002/mrm.21759.Peer-Reviewed Original ResearchConceptsCerebral blood flowLow-dose sevofluraneRegional cerebral blood flowTask-induced changesBaseline cerebral blood flowBlood oxygen level-dependent (BOLD) signalAbsence of anesthesiaHealthy human subjectsHuman subjectsNormal human subjectsLevel-dependent signalFunctional MR imagingVascular measuresAnesthetic agentsBlood flowAnesthetic effectSevofluraneFunctional MRI dataAnesthesia conditionsAnesthesiaMR imagingAuditory regionsOxidative metabolismAuditory stimuliFMRI study
2007
Sevoflurane 0.25 MAC Preferentially Affects Higher Order Association Areas: A Functional Magnetic Resonance Imaging Study in Volunteers
Ramani R, Qiu M, Constable RT. Sevoflurane 0.25 MAC Preferentially Affects Higher Order Association Areas: A Functional Magnetic Resonance Imaging Study in Volunteers. Anesthesia & Analgesia 2007, 105: 648-655. PMID: 17717218, PMCID: PMC2716177, DOI: 10.1213/01.ane.0000277496.12747.29.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowFunctional magnetic resonance imagingMAC sevofluraneMotor activation taskAssociation cortexMemory-related regionsAssociation areasVolatile anestheticsVisual cortexBaseline regional cerebral blood flowHigher-order association areasMagnetic resonance imaging studyHigher-order association corticesCerebral blood flowActivation taskSupplementary motor areaPrimary cortical regionsSecondary visual cortexPrimary visual cortexResonance imaging studyFunctional magnetic resonance imaging studyMagnetic resonance imagingArterial spin labeling techniqueASA ISubanesthetic doses
2004
Neuroimaging Studies in Eating Disorders
Frank G, Bailer U, Henry S, Wagner A, Kaye W. Neuroimaging Studies in Eating Disorders. CNS Spectrums 2004, 9: 539-549. PMID: 15208513, DOI: 10.1017/s1092852900009639.Peer-Reviewed Original ResearchConceptsMagnet resonance spectroscopyBulimia nervosaWhite matter volume lossBody image distortionRegional cerebral blood flowCerebral glucose metabolismCerebral blood flowSimilar brain regionsSerotonin metabolismBrain phospholipidsBlood flowGlucose metabolismBrain pathwaysAnorexiaBrain regionsIll stateAppetitive behaviorNeuroimaging studiesParietal regionsEating DisordersDisordersVolume lossSuch studiesMost studiesMetabolism
2001
Cerebral blood flow in obsessive–compulsive patients with major depression: effect of treatment with sertraline or desipramine on treatment responders and non-responders
Hoehn-Saric R, Schlaepfer T, Greenberg B, McLeod D, Pearlson G, Wong S. Cerebral blood flow in obsessive–compulsive patients with major depression: effect of treatment with sertraline or desipramine on treatment responders and non-responders. Psychiatry Research 2001, 108: 89-100. PMID: 11738543, DOI: 10.1016/s0925-4927(01)00114-7.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBlood Flow VelocityCerebral CortexDepressive Disorder, MajorDesipramineDominance, CerebralDouble-Blind MethodFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedObsessive-Compulsive DisorderRegional Blood FlowSertralineTomography, Emission-Computed, Single-PhotonTreatment OutcomeConceptsRegional cerebral blood flowHigher regional cerebral blood flowWeeks of treatmentCerebral blood flowYale-Brown Obsessive Compulsive ScaleBlood flowTemporal regionsType of medicationEffects of sertralineMajor depressive episodePrefrontal regional cerebral blood flowAdministration of medicationsPrefrontal regionsHMPAO SPECT scansEffect of treatmentObsessive Compulsive ScaleDiffuse reductionRCBF reductionStudy entryBasal gangliaDepressive episodeClinical changesMajor depressionDrug treatmentTreatment respondersChanges in brain activity related to eating chocolate
Small DM, Zatorre RJ, Dagher A, Evans AC, Jones-Gotman M. Changes in brain activity related to eating chocolate. Brain 2001, 124: 1720-1733. PMID: 11522575, DOI: 10.1093/brain/124.9.1720.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowCerebral blood flowOnly brain regionBrain activityPosterior cingulate cortexNon-specific effectsChemosensory areasBlood flowPET scansCingulate cortexBrain regionsPatterns of activitySensory stimuliFunctional segregationSatietyPiece of chocolateSubjectsReward valueSubjects' ratingsNeural representationSeparate motivational systemsActivityCaudomedialCortexNeuroimaging in alzheimer’s disease: Relevance for treatment
van Dyck C. Neuroimaging in alzheimer’s disease: Relevance for treatment. Current Psychiatry Reports 2001, 3: 13-19. PMID: 11177754, DOI: 10.1007/s11920-001-0066-2.Peer-Reviewed Original ResearchConceptsAlzheimer's diseaseAD patientsRegional cerebral glucose metabolismRegional cerebral blood flowApolipoprotein E e4 alleleAnti-amyloid therapiesCerebral glucose metabolismDisease-modifying agentsCentral cholinergic neurotransmissionWhole brain atrophyCerebral blood flowPutative disease-modifying agentsWidespread clinical testingStructural magnetic resonanceBrain atrophyPrevention therapyInvestigational trialsAsymptomatic subjectsEfficacy measuresCholinergic neurotransmissionE4 alleleSenile plaquesDrug dosingOutcome measuresBlood flow
2000
The Alpha-2A-Adrenoceptor Agonist, Guanfacine, Increases Regional Cerebral Blood Flow in Dorsolateral Prefrontal Cortex of Monkeys Performing a Spatial Working Memory Task
Avery R, Franowicz J, Studholme C, van Dyck C, Arnsten A. The Alpha-2A-Adrenoceptor Agonist, Guanfacine, Increases Regional Cerebral Blood Flow in Dorsolateral Prefrontal Cortex of Monkeys Performing a Spatial Working Memory Task. Neuropsychopharmacology 2000, 23: 240-249. PMID: 10942848, DOI: 10.1016/s0893-133x(00)00111-1.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic alpha-2 Receptor AgonistsAdrenergic alpha-AgonistsAnimalsCerebrovascular CirculationCognitionFemaleGuanfacineImage Processing, Computer-AssistedMacaca mulattaMagnetic Resonance ImagingMemoryPrefrontal CortexSpace PerceptionStimulation, ChemicalTomography, Emission-Computed, Single-PhotonConceptsRegional cerebral blood flowCerebral blood flowPrefrontal cortexDorsolateral prefrontal cortexBlood flowAlpha 2A-adrenoceptorsAuditory association areasSuperior temporal cortexBlood flow tracerSPECT measuresAdrenoceptor agonistsAdrenoceptor stimulationAlpha-2aMemory taskAdrenoreceptor agonistIntravenous cathetersGuanfacine treatmentTemporal cortexRCBF valuesAssociation areasBrain regionsGuanfacineCortexSpatial Working Memory taskCognitive performanceA voxel-based investigation of regional cerebral blood flow abnormalities in obsessive–compulsive disorder using single photon emission computed tomography (SPECT)
Busatto G, Zamignani D, Buchpiguel C, Garrido G, Glabus M, Rocha E, Maia A, Rosario-Campos M, Castro C, Furuie S, Gutierrez M, McGuire P, Miguel E. A voxel-based investigation of regional cerebral blood flow abnormalities in obsessive–compulsive disorder using single photon emission computed tomography (SPECT). Psychiatry Research 2000, 99: 15-27. PMID: 10891646, DOI: 10.1016/s0925-4927(00)00050-0.Peer-Reviewed Original ResearchConceptsAnterior cingulate cortexECD uptakeObsessive-compulsive disorderCingulate cortexLateral orbitofrontal cortexObsessive-compulsive symptomsOrbitofrontal cortexControl subjectsOCD patientsLeft dorsal anterior cingulate cortexRegional cerebral blood flow abnormalitiesImaging studiesCerebral blood flow abnormalitiesRight medial orbitofrontal cortexPatient samplesRegional cerebral blood flowPathophysiology of OCDRight lateral orbitofrontal cortexRCBF SPECT studiesHealthy control subjectsBlood flow abnormalitiesCerebral blood flowLarger patient samplesSmall patient sampleLeft lateral orbitofrontal cortex
1999
Mice Deficient in Mac-1 (CD11b/CD18) Are Less Susceptible to Cerebral Ischemia/Reperfusion Injury
Soriano S, Coxon A, Wang Y, Frosch M, Lipton S, Hickey P, Mayadas T. Mice Deficient in Mac-1 (CD11b/CD18) Are Less Susceptible to Cerebral Ischemia/Reperfusion Injury. Stroke 1999, 30: 134-139. PMID: 9880401, DOI: 10.1161/01.str.30.1.134.Peer-Reviewed Original ResearchConceptsTransient focal cerebral ischemiaRegional cerebral blood flowMac-1-deficient miceFocal cerebral ischemiaCerebral blood flowMac-1Cerebral ischemiaBrain sectionsBlood flowCerebral ischemia/reperfusion injuryFocal ischemia/reperfusionIschemia/reperfusion injuryLeft middle cerebral arteryCerebral cell deathLeukocyte beta2 integrinsIschemic brain tissueReperfusion-induced injuryMiddle cerebral arteryIschemia/reperfusionWild-type miceLaser Doppler flowmeterWild-type cohortsMac-1 deficiencyMacrophage-1 antigenInfarct volume
1997
The acetylcholine releaser linopirdine increases parietal regional cerebral blood flow in Alzheimer’s disease
van Dyck C, Lin C, Robinson R, Cellar J, Smith E, Nelson J, Arnsten A, Hoffer P. The acetylcholine releaser linopirdine increases parietal regional cerebral blood flow in Alzheimer’s disease. Psychopharmacology 1997, 132: 217-226. PMID: 9292621, DOI: 10.1007/s002130050339.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowParietal regional cerebral blood flowCerebral blood flowAlzheimer's diseaseAD patientsBlood flowDouble-blind trialWeeks of treatmentAD drug therapyProbable Alzheimer's diseaseParietal association cortexSingle photon emissionPlacebo TIDRCBF abnormalitiesCholinergic drugsDrug therapyHealthy controlsRCBF ratiosPharmacological interventionsHealthy subjectsAssociation cortexPatientsLinopirdineBrain regionsNeuropsychological functionA Role for the Right Anterior Temporal Lobe in Taste Quality Recognition
Small D, Jones-Gotman M, Zatorre R, Petrides M, Evans A. A Role for the Right Anterior Temporal Lobe in Taste Quality Recognition. Journal Of Neuroscience 1997, 17: 5136-5142. PMID: 9185551, PMCID: PMC6573307, DOI: 10.1523/jneurosci.17-13-05136.1997.Peer-Reviewed Original ResearchConceptsRegional cerebral blood flowAnteromedial temporal lobeGroup of patientsTemporal lobeRight anterior temporal lobectomyOrbitofrontal cortexCaudolateral orbitofrontal cortexAnterior temporal lobectomyCerebral blood flowRight anterior temporal lobePrimary taste cortexTreatment of epilepsyPositron emission tomographyRight cerebral hemisphereAnterior temporal lobeRCBF increasesTemporal lobectomyGustatory functionTaste cortexBlood flowCerebral hemispheresControl groupEmission tomographyPatientsTaste sensation
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