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dc.rights.licenseopenen_US
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorMEDINA-VERA, Dina
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorZAMBRANA-INFANTES, Emma N.
hal.structure.identifierNeurocentre Magendie : Physiopathologie de la Plasticité Neuronale [U1215 Inserm - UB]
dc.contributor.authorLOPEZ-GAMBERO, Antonio J.
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorVERHEUL-CAMPOS, Julia
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorSANTÍN, Luis J.
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorBAIXERAS, Elena
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorSUAREZ, Juan
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorPAVON, Francisco J.
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorROSELL-VALLE, Cristina
hal.structure.identifierUniversidad de Málaga [Málaga] = University of Málaga [Málaga]
dc.contributor.authorRODRIGUEZ DE FONSECA, Fernando
dc.date.accessioned2024-03-26T13:56:14Z
dc.date.available2024-03-26T13:56:14Z
dc.date.issued2023-10-15
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188987
dc.description.abstractEnThe amyloid cascade hypothesis is widely accepted as an explanation for the neuropathological changes in Alzheimer's disease (AD). However, the role of amyloid-beta (Aβ) as the sole cause of these changes is being questioned. Using the 5xFAD mouse model of AD, we investigated various factors contributing to neuropathology, including genetic load (heterozygous (HTZ) versus homozygous (HZ) condition), behavioural phenotype, neuropathology markers, metabolic physiology, and gut microbiota composition at early (5 months of age) and late (12 months of age) stages of disease onset, and considering both sexes. At 5 months of age, both HTZ and HZ mice exhibited hippocampal alterations associated with Aβ accumulation, leading to increased neuroinflammation and disrupted PI3K-Akt pathway. However, only HZ mice showed cognitive impairment in the Y-maze and Morris water maze tests, worsening with age. Dysregulation of both insulin and insulin secretion-regulating GIP peptide were observed at 5 months of age, disappearing later. Circulating levels of metabolic-regulating hormones, such as Ghrelin and resisting helped to differentiates HTZ mice from HZ mice. Differences between HTZ and HZ mice were also observed in gut microbiota composition, disrupted intestinal barrier proteins, and increased proinflammatory products in the intestine. These findings suggest that cognitive impairment in 5xFAD mice may not solely result from Aβ aggregation. Other factors, including altered PI3K-Akt signalling, disrupted insulin-linked metabolic pathways, and changes in gut microbiota, contribute to disease progression. Targeting Aβ deposition alone may not suffice. Understanding AD pathogenesis and its multiple contributing factors is vital for effective therapies. © 2023 The Authors
dc.language.isoENen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subject.enAkt pathway; Cognitive impairment
dc.subject.enInsulin resistance
dc.subject.enMicrobiota
dc.subject.enNeuroinflammation
dc.subject.enHippocampus
dc.title.enTranscending the amyloid-beta dominance paradigm in Alzheimer's disease: An exploration of behavioural, metabolic, and gut microbiota phenotypes in 5xFAD mice
dc.title.alternativeNeurobiol Disen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.nbd.2023.106295en_US
dc.subject.halSciences du Vivant [q-bio]/Neurosciences [q-bio.NC]en_US
dc.identifier.pubmed37717663en_US
dc.description.sponsorshipEuropeEuropean Regional Development Funden_US
dc.description.sponsorshipEuropeDefining a Roadmap for Cooperative Health research between the EU and Latin America-Caribbean countries: a Policy Oriented Approachen_US
bordeaux.journalNeurobiology of Diseaseen_US
bordeaux.volume187en_US
bordeaux.hal.laboratoriesNeurocentre Magendie - U1215en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionINSERMen_US
bordeaux.teamPhysiopathologie de l'équilibre énergétique et obésitéen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.identifier.funderIDH2020 European Research Councilen_US
bordeaux.identifier.funderIDInstituto de Salud Carlos IIIen_US
hal.identifierhal-04521779
hal.version1
hal.date.transferred2024-03-26T13:56:18Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
dc.rights.ccCC BY-NC-NDen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Neurobiology%20of%20Disease&rft.date=2023-10-15&rft.volume=187&rft.au=MEDINA-VERA,%20Dina&ZAMBRANA-INFANTES,%20Emma%20N.&LOPEZ-GAMBERO,%20Antonio%20J.&VERHEUL-CAMPOS,%20Julia&SANT%C3%8DN,%20Luis%20J.&rft.genre=article


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