2024
Key Roles of CACNA1C/Cav1.2 and CALB1/Calbindin in Prefrontal Neurons Altered in Cognitive Disorders
Datta D, Yang S, Joyce M, Woo E, McCarroll S, Gonzalez-Burgos G, Perone I, Uchendu S, Ling E, Goldman M, Berretta S, Murray J, Morozov Y, Arellano J, Duque A, Rakic P, O’Dell R, van Dyck C, Lewis D, Wang M, Krienen F, Arnsten A. Key Roles of CACNA1C/Cav1.2 and CALB1/Calbindin in Prefrontal Neurons Altered in Cognitive Disorders. JAMA Psychiatry 2024, 81: 870-881. PMID: 38776078, PMCID: PMC11112502, DOI: 10.1001/jamapsychiatry.2024.1112.Peer-Reviewed Original ResearchDorsolateral prefrontal cortexPrefrontal cortexLayer III pyramidal cellsWorking memoryCognitive disordersNeuronal firingPrimate dorsolateral prefrontal cortexPyramidal cellsSpatial working memoryWorking memory performanceRisk of mental disordersCalcium-related proteinsReduced neuronal firingL-type calcium channel Cav1.2GluN2B-NMDA receptorsL-type calcium channel activityPrefrontal neuronsL-type calcium channel blockerMemory performanceL-type calcium channelsMental disordersRisk of cognitive disordersCognitive behaviorProtein expressionAssociated with increased riskβ1-adrenoceptor expression on GABAergic interneurons in primate dorsolateral prefrontal cortex: potential role in stress-induced cognitive dysfunction
Joyce M, Yang S, Morin K, Duque A, Arellano J, Datta D, Wang M, Arnsten A. β1-adrenoceptor expression on GABAergic interneurons in primate dorsolateral prefrontal cortex: potential role in stress-induced cognitive dysfunction. Neurobiology Of Stress 2024, 30: 100628. PMID: 38550854, PMCID: PMC10973161, DOI: 10.1016/j.ynstr.2024.100628.Peer-Reviewed Original ResearchDorsolateral prefrontal cortexPrefrontal cortexStress-induced cognitive dysfunctionTreat stress-related disordersPrimate dorsolateral prefrontal cortexImpaired working memoryWorking memory deficitsWorking memory taskCalcium-binding proteins calbindinStress-related disordersClasses of inhibitory neuronsLevels of norepinephrineFast-spikingMemory taskDopamine releaseWorking memoryMemory deficitsInhibitory neuronsCognitive dysfunctionPV interneuronsGABAergic interneuronsDlPFCBehavior analysisCortexPyramidal cells
2007
Ultrastructure of Dendritic Spines: Correlation Between Synaptic and Spine Morphologies
Arellano J, Benavides-Piccione R, DeFelipe J, Yuste R. Ultrastructure of Dendritic Spines: Correlation Between Synaptic and Spine Morphologies. Frontiers In Neuroscience 2007, 1: 131-143. PMID: 18982124, PMCID: PMC2518053, DOI: 10.3389/neuro.01.1.1.010.2007.Peer-Reviewed Original ResearchSpine head volumeDendritic spinesSynaptic strengthSpine morphologyLayer 2/3 pyramidal cellsPostsynaptic densityMouse visual cortexMost excitatory synapsesReady releasable poolPostsynaptic receptorsPyramidal cellsExcitatory synapsesHead volumeDistinguishable subtypesCortical circuitsGolgi impregnationVisual cortexParent dendriteSpine neckPSD areaSpineSynaptic featuresFunctional parametersNeck lengthNeck diameter
2005
Catecholaminergic Innervation of Pyramidal Neurons in the Human Temporal Cortex
Benavides-Piccione R, Arellano J, DeFelipe J. Catecholaminergic Innervation of Pyramidal Neurons in the Human Temporal Cortex. Cerebral Cortex 2005, 15: 1584-1591. PMID: 15703259, DOI: 10.1093/cercor/bhi036.Peer-Reviewed Original ResearchConceptsHuman temporal cortexPyramidal cellsPyramidal neuronsCatecholaminergic innervationCatecholaminergic afferentsCatecholaminergic fibersTyrosine hydroxylaseTemporal cortexHuman neocortexBasal dendritic regionsBasal dendritic arborsHuman cortical organizationEnzyme tyrosine hydroxylaseHuman cortical tissueDendritic arborsExcitatory inputsCortical functionLayers IIHigher cognitive functionsLayers IIIaCognitive functionDendritic compartmentsCortical tissueCortical organizationLucifer Yellow
2002
GABABR1 receptor protein expression in human mesial temporal cortex: Changes in temporal lobe epilepsy
Muñoz A, Arellano J, Defelipe J. GABABR1 receptor protein expression in human mesial temporal cortex: Changes in temporal lobe epilepsy. The Journal Of Comparative Neurology 2002, 449: 166-179. PMID: 12115687, DOI: 10.1002/cne.10287.Peer-Reviewed Original ResearchConceptsTemporal lobe epilepsyHuman hippocampal formationLayer VHippocampal formationLobe epilepsyB immunoreactivityDentate gyrusPyramidal cellsEpileptic patientsPerirhinal cortexProtein expressionInhibitory synaptic transmissionLarge pyramidal cellsMesial temporal cortexPolymorphic cell layerDeep layer VReceptor protein expressionGranule cell layerCell layerAdjacent cortical structuresB protein expressionHippocampal sclerosisNeuronal lossApical dendritesAmmon's hornMicrostructure of the neocortex: Comparative aspects
DeFelipe J, Alonso-Nanclares L, Arellano J. Microstructure of the neocortex: Comparative aspects. Brain Cell Biology 2002, 31: 299-316. PMID: 12815249, DOI: 10.1023/a:1024130211265.Peer-Reviewed Original ResearchConceptsDifferent cortical areasCortical areasExtrinsic afferent systemsNeocortex of humansInhibitory GABAergic interneuronsDensity of excitatoryNumber of synapsesSpecific cortical circuitsDistinct cortical areasSpiny cellsInhibitory circuitsGABAergic interneuronsInhibitory synapsesNeocortical neuronsNeuronal elementsPyramidal cellsAfferent systemsCortical circuitsNeocortical circuitsCortical tissueNumber of neuronsNeocortexNeuronsExcitatoryBasic microcircuit
2001
Pyramidal cell axons show a local specialization for GABA and 5‐HT inputs in monkey and human cerebral cortex
DeFelipe J, Arellano J, Gómez A, Azmitia E, Muñoz A. Pyramidal cell axons show a local specialization for GABA and 5‐HT inputs in monkey and human cerebral cortex. The Journal Of Comparative Neurology 2001, 433: 148-155. PMID: 11283956, DOI: 10.1002/cne.1132.Peer-Reviewed Original ResearchConceptsChandelier cell axon terminalsGamma-aminobutyric acidPyramidal cell axonsCerebral cortexPyramidal cellsAxon terminalsCell axonsHuman cerebral cortexDouble-labeling experimentsPowerful inhibitory mechanismChandelier cellsMonkey neocortexGABAergic interneuronsImmunoreactive fibersSerotonin receptorsSerotonin afferentsAxonal specializationsParacrine mannerLayers IISynaptic connectionsImmunocytochemical methodsProximal portionInhibitory mechanismClose appositionConfocal laser microscopy