Featured Publications
A fluoro-Nissl dye identifies pericytes as distinct vascular mural cells during in vivo brain imaging
Damisah EC, Hill RA, Tong L, Murray KN, Grutzendler J. A fluoro-Nissl dye identifies pericytes as distinct vascular mural cells during in vivo brain imaging. Nature Neuroscience 2017, 20: 1023-1032. PMID: 28504673, PMCID: PMC5550770, DOI: 10.1038/nn.4564.Peer-Reviewed Original ResearchLong-term dendritic spine stability in the adult cortex
Grutzendler J, Kasthuri N, Gan WB. Long-term dendritic spine stability in the adult cortex. Nature 2002, 420: 812-816. PMID: 12490949, DOI: 10.1038/nature01276.Peer-Reviewed Original ResearchConceptsLayer 5 pyramidal neuronsAxo-dendritic synapsesFilopodia-like dendritic protrusionsPrimary visual cortexVisual cortex developmentDendritic spine stabilityTwo-photon imaging techniquePyramidal neuronsDendritic specializationsAdult cortexYoung miceSpine eliminationAdult miceOne-month intervalsNervous systemTransgenic miceSpine stabilityVisual cortexDendritic protrusionsMammalian brainCortex developmentAdult animalsSpineMiceYoung animalsMicroglia constitute a barrier that prevents neurotoxic protofibrillar Aβ42 hotspots around plaques
Condello C, Yuan P, Schain A, Grutzendler J. Microglia constitute a barrier that prevents neurotoxic protofibrillar Aβ42 hotspots around plaques. Nature Communications 2015, 6: 6176. PMID: 25630253, PMCID: PMC4311408, DOI: 10.1038/ncomms7176.Peer-Reviewed Original ResearchEmbolus extravasation is an alternative mechanism for cerebral microvascular recanalization
Lam CK, Yoo T, Hiner B, Liu Z, Grutzendler J. Embolus extravasation is an alternative mechanism for cerebral microvascular recanalization. Nature 2010, 465: 478-482. PMID: 20505729, PMCID: PMC2879083, DOI: 10.1038/nature09001.Peer-Reviewed Original ResearchConceptsAge-related cognitive disordersBlood vesselsPossible therapeutic targetAged miceBlood flowTherapeutic targetCognitive disordersMice showBlood clotsEndothelial cellsUnderlying endotheliumMicroemboliExtravasationFibrinolysisVesselsRecanalizationEmboliPatientsStrokeEndotheliumMiceBloodBrainWeeksClots
2012
In Vivo Imaging of Cerebral Microvascular Plasticity from Birth to Death
Harb R, Whiteus C, Freitas C, Grutzendler J. In Vivo Imaging of Cerebral Microvascular Plasticity from Birth to Death. Cerebrovascular And Brain Metabolism Reviews 2012, 33: 146-156. PMID: 23093067, PMCID: PMC3597363, DOI: 10.1038/jcbfm.2012.152.Peer-Reviewed Original ResearchConceptsVascular stabilityYoung adult miceFirst postnatal monthDegenerative neurological disordersVessel formationHypoxia-induced angiogenesisCerebral functionPostnatal monthAdult brainAdult miceIntact brainMicrovascular plasticityNeurological disordersFirst monthMicrovessel formationOlder adultsMetabolic challengesTwo-photon microscopyNew vesselsBaseline turnoverLong-term adaptive responsesIndividual microvesselsMiceVivo patternBrain
2011
Multicolor time-stamp reveals the dynamics and toxicity of amyloid deposition
Condello C, Schain A, Grutzendler J. Multicolor time-stamp reveals the dynamics and toxicity of amyloid deposition. Scientific Reports 2011, 1: 19. PMID: 22355538, PMCID: PMC3216507, DOI: 10.1038/srep00019.Peer-Reviewed Original ResearchConceptsPlaque burdenAmyloid depositionAlzheimer's diseaseAD mouse modelPlaque enlargementClinicopathological studyNeuritic dystrophyPathogenic rolePostmortem studiesAmyloid plaquesNew plaquesConsequent neurotoxicityMouse modelOld plaquesQuantitative confocal imagingCognitive statusPlaquesPlaque expansionOld animalsAmyloid-binding dyesNeurotoxicityDiseasePoor correlationBurdenCritical determinant
2006
Two-photon imaging of synaptic plasticity and pathology in the living mouse brain
Grutzendler J, Gan WB. Two-photon imaging of synaptic plasticity and pathology in the living mouse brain. Neurotherapeutics 2006, 3: 489-496. PMID: 17012063, PMCID: PMC3593400, DOI: 10.1016/j.nurx.2006.07.005.Peer-Reviewed Original ResearchConceptsTwo-photon microscopyMouse brainAcute brain injuryPostsynaptic dendritic spinesAdult mouse brainCerebral ischemiaSynaptic pathologyCerebrovascular diseaseBrain injuryMouse modelDendritic spinesAnimal modelsBrain cellsIntact brainTwo-photon imagingNeuronal connectionsSynaptic plasticityAlzheimer's diseaseNeuronal structuresDiseaseBrainStructural plasticityPathologyTechnical considerationsIschemia
2004
Age‐associated synapse elimination in mouse parasympathetic ganglia
Coggan JS, Grutzendler J, Bishop DL, Cook MR, Gan W, Heym J, Lichtman JW. Age‐associated synapse elimination in mouse parasympathetic ganglia. Developmental Neurobiology 2004, 60: 214-226. PMID: 15266652, DOI: 10.1002/neu.20022.Peer-Reviewed Original ResearchConceptsSynapse eliminationExcitatory postsynaptic potential amplitudeSubmandibular ganglion neuronsPostsynaptic potential amplitudeNumber of synapsesMonths of ageMammalian nervous systemAge-related changesMiniature EPSPsSMG neuronsSynapse efficacyParasympathetic gangliaGanglion neuronsEPSP amplitudeSynaptic contactsSynaptic transmissionSynaptic inputsAged animalsPotential amplitudeNervous systemSynaptic boutonsAxonal processesNeuronsOld animalsPostsynaptic membrane