2021
Preliminary In Vivo Evidence of Reduced Synaptic Density in Human Immunodeficiency Virus (HIV) Despite Antiretroviral Therapy
Weiss JJ, Calvi R, Naganawa M, Toyonaga T, Farhadian SF, Chintanaphol M, Chiarella J, Zheng MQ, Ropchan J, Huang Y, Pietrzak RH, Carson RE, Spudich S. Preliminary In Vivo Evidence of Reduced Synaptic Density in Human Immunodeficiency Virus (HIV) Despite Antiretroviral Therapy. Clinical Infectious Diseases 2021, 73: 1404-1411. PMID: 34050746, PMCID: PMC8528400, DOI: 10.1093/cid/ciab484.Peer-Reviewed Original ResearchConceptsHuman immunodeficiency virusAntiretroviral therapySynaptic densityMagnetic resonance imagingMale PLWHImmunodeficiency virusUnderwent magnetic resonance imagingPositron emission tomographicCross-sectional pilotHIV neuropathogenesisViral suppressionCommon complicationSynaptic injuryNeurological impairmentDynamic biomarkersPLWHTherapeutic studiesCortical areasMotor coordinationPathological hallmarkPET scanningPromising biomarkerTherapeutic interventionsResonance imagingPegboard performance
2020
Synaptic Changes in Parkinson Disease Assessed with in vivo Imaging
Matuskey D, Tinaz S, Wilcox KC, Naganawa M, Toyonaga T, Dias M, Henry S, Pittman B, Ropchan J, Nabulsi N, Suridjan I, Comley RA, Huang Y, Finnema SJ, Carson RE. Synaptic Changes in Parkinson Disease Assessed with in vivo Imaging. Annals Of Neurology 2020, 87: 329-338. PMID: 31953875, PMCID: PMC7065227, DOI: 10.1002/ana.25682.Peer-Reviewed Original ResearchConceptsSubstantia nigraParkinson's diseaseNormal controlsSynaptic changesPositron emission tomographic imagingSynaptic vesicle glycoprotein 2AParkinson's disease groupParkinson's disease subjectsEmission tomographic imagingPrimary brain areasAnn NeurolPostmortem autoradiographyBilateral diseaseNonmotor symptomsSynaptic lossNeuronal alterationsRelevant cortical areasStriatal dopamineBrainstem nucleiDisease groupDopamine neuronsLocus coeruleusCortical areasRed nucleusDopamine system
1992
Dissociation of Object and Spatial Vision in Human Extrastriate Cortex: Age-Related Changes in Activation of Regional Cerebral Blood Flow Measured with [15 O]Water and Positron Emission Tomography
Grady C, Haxby J, Horwitz B, Schapiro M, Rapoport S, Ungerleider L, Mishkin M, Carson R, Herscovitch P. Dissociation of Object and Spatial Vision in Human Extrastriate Cortex: Age-Related Changes in Activation of Regional Cerebral Blood Flow Measured with [15 O]Water and Positron Emission Tomography. Journal Of Cognitive Neuroscience 1992, 4: 23-34. PMID: 23967855, DOI: 10.1162/jocn.1992.4.1.23.Peer-Reviewed Original ResearchRegional cerebral blood flowCerebral blood flowSuperior parietal cortexOlder subjectsParietal cortexBlood flowYoung subjectsPositron emission tomographic scansDissociation of ObjectOccipitotemporal cortexOlder male subjectsVisual cortical areasMore activationHuman extrastriate cortexPositron emission tomographyAge-related reductionAge-related changesTomographic scanCortical areasBrain areasMale subjectsVisual pathwayEmission tomographyExtrastriate cortexCortex
1991
Dissociation of object and spatial visual processing pathways in human extrastriate cortex.
Haxby JV, Grady CL, Horwitz B, Ungerleider LG, Mishkin M, Carson RE, Herscovitch P, Schapiro MB, Rapoport SI. Dissociation of object and spatial visual processing pathways in human extrastriate cortex. Proceedings Of The National Academy Of Sciences Of The United States Of America 1991, 88: 1621-1625. PMID: 2000370, PMCID: PMC51076, DOI: 10.1073/pnas.88.5.1621.Peer-Reviewed Original ResearchConceptsExtrastriate cortexRegional cerebral blood flowDissociation of ObjectPrimate extrastriate cortexCerebral blood flowHealthy young menExtrastriate visual pathwaysHuman extrastriate cortexPositron emission tomographyAnterior temporal cortexSuperior parietal cortexLateral occipital cortexNew cortical areasSensorimotor control taskVisual extrastriate cortexBolus injectionOccipital cortexBlood flowCortical areasTemporal cortexNeuroanatomical locationVisual pathwayParietal cortexVisual processing pathwayEmission tomography