2020
In vivo measurement of widespread synaptic loss in Alzheimer's disease with SV2A PET
Mecca AP, Chen M, O'Dell RS, Naganawa M, Toyonaga T, Godek TA, Harris JE, Bartlett HH, Zhao W, Nabulsi NB, Vander Wyk B, Varma P, Arnsten AFT, Huang Y, Carson RE, van Dyck C. In vivo measurement of widespread synaptic loss in Alzheimer's disease with SV2A PET. Alzheimer's & Dementia 2020, 16: 974-982. PMID: 32400950, PMCID: PMC7383876, DOI: 10.1002/alz.12097.Peer-Reviewed Original ResearchConceptsWidespread synaptic lossEarly Alzheimer's diseaseSynaptic lossAlzheimer's diseaseSynaptic vesicle glycoprotein 2AGray matter volumeMajor structural correlatePositron emission tomography (PET) imagingEmission Tomography ImagingDistribution volume ratioCerebellar reference regionNeocortical brain regionsSynaptic densityAD progressionConsistent pathologyPotential therapyMatter volumePromising biomarkerCognitive impairmentCN participantsBrain regionsDiseaseTomography imagingNormal participantsStructural correlates
2012
Layer 6 cortical neurons require Reelin-Dab1 signaling for cellular orientation, Golgi deployment, and directed neurite growth into the marginal zone
O’Dell R, Ustine CJ, Cameron DA, Lawless SM, Williams RM, Zipfel WR, Olson EC. Layer 6 cortical neurons require Reelin-Dab1 signaling for cellular orientation, Golgi deployment, and directed neurite growth into the marginal zone. Neural Development 2012, 7: 25. PMID: 22770513, PMCID: PMC3466444, DOI: 10.1186/1749-8104-7-25.Peer-Reviewed Original ResearchConceptsEarly cortical developmentMutant cortexCortical neuronsCortical developmentPial surfaceMarginal zoneApical neuritesL6 neuronsRecombinant ReelinNeocortical neuronsNeuronal somataReelin-Dab1Arbor lengthArbor sizeExplant modelVentricular zonePioneer neuronsMutant neuronsReelinNeuronsConclusionsThese findingsMore primary processesNeuronal orientationCortexNeurite growth
2007
Rapid Changes in Throughput from Single Motor Cortex Neurons to Muscle Activity
Davidson AG, Chan V, O'Dell R, Schieber MH. Rapid Changes in Throughput from Single Motor Cortex Neurons to Muscle Activity. Science 2007, 318: 1934-1937. PMID: 18096808, DOI: 10.1126/science.1149774.Peer-Reviewed Original ResearchConceptsSingle motor cortex neuronsMotor cortex neuronsMotor cortex outputCortex neuronsMuscle activityFunctional connectivityOngoing muscle activityAlpha-motoneuron poolModulation of excitabilityNeuron firing rateFiring rateNeuronsNeuronal synchronizationBehavioral epochsCortexSuch reorganizationExcitabilityActivity