0000000000336350

AUTHOR

Marie-claude Potier

showing 2 related works from this author

Resting-state posterior alpha rhythms are abnormal in subjective memory complaint seniors with preclinical Alzheimer's neuropathology and high educat…

2020

International audience; Cognitive reserve is present in Alzheimer's disease (AD) seniors with high education attainment making them clinically resilient to extended brain neuropathology and neurodegeneration. Here, we tested whether subjective memory complaint (SMC) seniors with AD neuropathology and high education attainment of the prospective INSIGHT-preAD cohort (Paris) may present abnormal eyesclosed resting state posterior electroencephalographic rhythms around individual alpha frequency peak, typically altered in AD patients. The SMC participants negative to amyloid PET AD markers (SMCneg) with high (over low-moderate) education level showed higher posterior alpha 2 power density (pos…

0301 basic medicineMaleAgingpsychology [Alzheimer Disease]alpha rhythms; INSIGHT-preAD study; preclinical Alzheimer's disease (AD); preclinical Alzheimer's neuropathology; resting state EEG rhythms; subjective memory complaint (SMC)physiopathology [Brain]Cohort Studies0302 clinical medicineCognitive ReserveMedicineProspective StudiesCognitive reserveAged 80 and over[SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior4. EducationGeneral NeuroscienceNeurodegenerationdiagnosis [Alzheimer Disease]BrainCognitionElectroencephalographyMagnetic Resonance ImagingAlpha Rhythm[SCCO.PSYC]Cognitive science/PsychologyEducational StatusFemale[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]RestAlpha (ethology)NeuropathologyNeuroprotectionphysiopathology [Alzheimer Disease]03 medical and health sciencesRhythmAlzheimer DiseaseMemoryHumansddc:610AgedResting state fMRIbusiness.industry[SCCO.NEUR]Cognitive science/Neurosciencemedicine.disease030104 developmental biologyphysiology [Rest]Positron-Emission TomographyNeurology (clinical)Geriatrics and GerontologybusinessNeuroscience030217 neurology & neurosurgeryDevelopmental Biology
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Apolipoprotein E Regulates Amyloid Formation within Endosomes of Pigment Cells.

2015

International audience; Accumulation of toxic amyloid oligomers is a key feature in the pathogenesis of amyloid-related diseases. Formation of mature amyloid fibrils is one defense mechanism to neutralize toxic prefibrillar oligomers. This mechanism is notably influenced by apolipoprotein E variants. Cells that produce mature amyloid fibrils to serve physiological functions must exploit specific mechanisms to avoid potential accumulation of toxic species. Pigment cells have tuned their endosomes to maximize the formation of functional amyloid from the protein PMEL. Here, we show that ApoE is associated with intraluminal vesicles (ILV) within endosomes and remain associated with ILVs when th…

Apolipoprotein EAmyloidAmyloidEndosome[SDV.BC]Life Sciences [q-bio]/Cellular BiologyEndosomesBiologyExosomesGeneral Biochemistry Genetics and Molecular BiologyMiceApolipoproteins Emental disordersAnimalsHumansamyloid-related diseaseslcsh:QH301-705.5[SDV.BC] Life Sciences [q-bio]/Cellular BiologyMelanosomeMice KnockoutMelanosomesEndosomal Sorting Complexes Required for TransportVesicleMicrovesiclesPMELCell biologyMice Inbred C57BLlcsh:Biology (General)BiochemistryGene Expression RegulationMelanocytesSignal transductionHeLa CellsSignal TransductionCell reports
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