Elisenda Bueichekú
she/her/hers
Associate Research ScientistCards
About
Research
Publications
2024
AD Pathology Spreading Detection Using Directional Motifs in Brain Connectomes
Bueichekú E, Diez I, Úbeda A, Kim C, Jacobs H, Sepulcre J. AD Pathology Spreading Detection Using Directional Motifs in Brain Connectomes. Alzheimer's & Dementia 2024, 20: e088834. PMCID: PMC11710655, DOI: 10.1002/alz.088834.Peer-Reviewed Original ResearchTau progressionAlzheimer's diseaseNetwork motifsProgression of tau pathologyContext of ADFeed-forward loopToxic tauTau propagationTau proteinTau pathologyTau accumulationProtein spreadingMotifMotif networkEmergence of cognitive declineMedial prefrontal regionsAmyloid accumulationTauCharacteristics of pathologyMild cognitive impairmentAlzheimer's Disease Neuroimaging InitiativePrefrontal regionsTau PET dataBrain systemsClinical ADSubject‐level Detection of Focal Neurodegeneration Using Spatiotemporal Connectomics: Towards Atrophy Characterization in Preclinical Alzheimer's Disease
Sánchez C, Diez I, Bueichekú E, Kim C, Grothe M, Sanchez‐Juan P, Sepulcre J. Subject‐level Detection of Focal Neurodegeneration Using Spatiotemporal Connectomics: Towards Atrophy Characterization in Preclinical Alzheimer's Disease. Alzheimer's & Dementia 2024, 20: e093803. PMCID: PMC11713922, DOI: 10.1002/alz.093803.Peer-Reviewed Original ResearchAlzheimer's diseaseNeurodegenerative diseasesGraph-theory-based frameworkHealthy agingBrain atrophyVoxel-based morphometryGray matter measuresAtrophy phenotypeSingle-subject levelPreclinical Alzheimer's diseaseCognitively normal participantsT1 MRI scansDisease phenotypePhenotypic heterogeneityBrain mechanismsGraph theory approachLongitudinal MRI dataFocal neurodegenerationNormal participantsAtrophy patternsFollow-up timepointsGroups of subjectsPhenotypePreclinical ADStructural similaritySubject‐level Detection of Focal Neurodegeneration Using Spatiotemporal Connectomics: Towards Atrophy Characterization in Preclinical Alzheimer’s Disease
Sánchez C, Diez I, Bueichekú E, Kim C, Grothe M, Sanchez‐Juan P, Sepulcre J. Subject‐level Detection of Focal Neurodegeneration Using Spatiotemporal Connectomics: Towards Atrophy Characterization in Preclinical Alzheimer’s Disease. Alzheimer's & Dementia 2024, 20: e089064. PMCID: PMC11715297, DOI: 10.1002/alz.089064.Peer-Reviewed Original ResearchAlzheimer's diseaseNeurodegenerative diseasesGraph-theory-based frameworkHealthy agingBrain atrophyVoxel-based morphometryGray matter measuresAtrophy phenotypeSingle-subject levelPreclinical Alzheimer's diseaseCognitively normal participantsT1 MRI scansDisease phenotypePhenotypic heterogeneityBrain mechanismsGraph theory approachLongitudinal MRI dataFocal neurodegenerationNormal participantsAtrophy patternsFollow-up timepointsGroups of subjectsPhenotypePreclinical ADStructural similarityCortical hubs of highly superior autobiographical memory
Orwig W, Diez I, Bueichekú E, Pedale T, Parente F, Campolongo P, Schacter D, Sepulcre J, Santangelo V. Cortical hubs of highly superior autobiographical memory. Cortex 2024, 179: 14-24. PMID: 39094240, DOI: 10.1016/j.cortex.2024.06.018.Peer-Reviewed Original ResearchConceptsSuperior autobiographical memoryAutobiographical memoryCortical hubsWhole-brain connectivity analysisPattern of increased connectivityResting-state fMRI dataWhole-brain analysisAutobiographical memory networkPosterior cingulate cortexMidline areaSeed-based analysisFunctional brain connectivityGraph theory analysisCingulate cortexNeural underpinningsNeuroimaging studiesEnhance memoryRemembering eventsBrain regionsControl participantsConnectivity analysisFMRI dataBrain connectivityCortical regionsWhole-brainLower Locus Coeruleus Integrity Signals Elevated Entorhinal Tau and Clinical Progression in Asymptomatic Older Individuals
Engels‐Domínguez N, Riphagen J, Van Egroo M, Koops E, Smegal L, Becker J, Prokopiou P, Bueichekú E, Kwong K, Rentz D, Salat D, Sperling R, Johnson K, Jacobs H. Lower Locus Coeruleus Integrity Signals Elevated Entorhinal Tau and Clinical Progression in Asymptomatic Older Individuals. Annals Of Neurology 2024, 96: 650-661. PMID: 39007398, PMCID: PMC11534559, DOI: 10.1002/ana.27022.Peer-Reviewed Original ResearchConceptsLocus coeruleus integrityClinical Dementia RatingBeta-amyloidHippocampal volumePositron emission tomographyClinical progressionAsymptomatic individualsReceiver operating characteristic analysisCortical tau depositionCox proportional hazards modelsLociAccumulation of pathologyBeta-amyloid burdenAsymptomatic older individualsMild cognitive impairmentTau depositionProportional hazards modelTau signalEC tauLocus coeruleusPET-negativeEntorhinal tauCognitive impairmentScreening instrumentCognitive declineTau propagation in the brain olfactory circuits is associated with smell perception changes in aging
Diez I, Ortiz-Terán L, Ng T, Albers M, Marshall G, Orwig W, Kim C, Bueichekú E, Montal V, Olofsson J, Vannini P, El Fahkri G, Sperling R, Johnson K, Jacobs H, Sepulcre J. Tau propagation in the brain olfactory circuits is associated with smell perception changes in aging. Nature Communications 2024, 15: 4809. PMID: 38844444, PMCID: PMC11156945, DOI: 10.1038/s41467-024-48462-3.Peer-Reviewed Original ResearchConceptsOlfactory systemMedial temporal lobe structuresCognitively normal older adultsOlfactory pathwayOdor identification deficitsNormal older adultsTemporal lobe structuresTau accumulationAlzheimer's diseaseIdentification deficitsGenetic vulnerabilityLobe structuresCortical systemsOlfactory circuitsAssociated with tau accumulationIdentification measuresCortical neurodegenerationOlder adultsPiB-PETTau propagationTau progressionPathological aggregationGenetic backgroundDiffusion MRIPredictive powerLocus coeruleus integrity and left frontoparietal connectivity provide resilience against attentional decline in preclinical alzheimer’s disease
Pahl J, Prokopiou P, Bueichekú E, Schultz A, Papp K, Farrell M, Rentz D, Sperling R, Johnson K, Jacobs H. Locus coeruleus integrity and left frontoparietal connectivity provide resilience against attentional decline in preclinical alzheimer’s disease. Alzheimer's Research & Therapy 2024, 16: 119. PMID: 38822365, PMCID: PMC11140954, DOI: 10.1186/s13195-024-01485-w.Peer-Reviewed Original ResearchConceptsDigit Symbol Substitution TestLC integrityLocus coeruleusAttentional declineCognitive declineDigit-symbol substitution test performanceHarvard Aging Brain StudyResting-state functional MRILocus coeruleus integrityNetwork functional connectivityAlzheimer's diseaseAging Brain StudyPreclinical Alzheimer's diseaseCognitive follow-upYears of educationNeural reserveNeural correlatesAttentional performanceAttention deficitMixed effects analysisCortical target regionsSubstitution TestCognitive changesFrontoparietal connectivityFunctional MRISpatiotemporal patterns of locus coeruleus integrity predict cortical tau and cognition
Bueichekú E, Diez I, Kim C, Becker J, Koops E, Kwong K, Papp K, Salat D, Bennett D, Rentz D, Sperling R, Johnson K, Sepulcre J, Jacobs H. Spatiotemporal patterns of locus coeruleus integrity predict cortical tau and cognition. Nature Aging 2024, 4: 625-637. PMID: 38664576, PMCID: PMC11108787, DOI: 10.1038/s43587-024-00626-y.Peer-Reviewed Original ResearchConceptsTau spreadingDisease pathologyGene expression profilesTau positron emission tomography imagingTranscriptomic informationLocus coeruleusHyperphosphorylated tauAlzheimer's disease pathologyTau accumulationBiological functionsExpression profilesTau depositionGenetic featuresCortical tauAlzheimer's diseaseLocus coeruleus integrityTauAssociated with lower cognitive performanceLower cognitive performanceTransport regulationLC integrityCognitive performanceAlzheimerAllocortical regionsSpatiotemporal patternsMulti-modal Neuroimaging Phenotyping of Mnemonic Anosognosia in the Aging Brain
Bueichekú E, Diez I, Gagliardi G, Kim C, Mimmack K, Sepulcre J, Vannini P. Multi-modal Neuroimaging Phenotyping of Mnemonic Anosognosia in the Aging Brain. Communications Medicine 2024, 4: 65. PMID: 38580832, PMCID: PMC10997795, DOI: 10.1038/s43856-024-00497-9.Peer-Reviewed Original ResearchMemory declineMedial anterior prefrontal cortexAging brainWhole-brain voxel-wiseAnterior prefrontal cortexRegion-of-interest analysisResting-state functional MRIObjective memory declineOccipito-parietal regionsMulti-modal neuroimagingNetwork connectivity patternsAlzheimer's diseaseFunctional connectivity networksPrefrontal cortexMnemonic anosognosiaTau burdenBiomarkers of AD pathologyMode networkParieto-occipital areasFunctional network connectivity disruptionFunctional MRIBrain phenotypesVoxel-wiseBehavioral conditionsBehavioral biomarkers
2023
Multi‐modal Neuroimaging Phenotyping of Mnemonic Anosognosia in the Aging Brain
Bueichekú E, Diez I, Gagliardi G, Kim C, Mimmack K, Sepulcre J, Vannini P. Multi‐modal Neuroimaging Phenotyping of Mnemonic Anosognosia in the Aging Brain. Alzheimer's & Dementia 2023, 19 DOI: 10.1002/alz.080294.Peer-Reviewed Original ResearchMnemonic anosognosiaOccipito-parietal regionsMemory declineBrain phenotypesSelf-referential brain networkObjective memory testsObjective memory declineResting-state fMRIPosterior cerebral cortexMulti-modal neuroimagingNetwork connectivity patternsAlzheimer's diseaseFunctional connectivity networksGraph theory metricsTau burdenNeurocognitive profileBiomarkers of AD pathologyMemory testMemory impairmentBetween-group comparisonsFunctional network connectivity disruptionBrain networksAging brainAnosognosiaBehavioral conditions