Alzheimer's Disease, Mild Cognitive Impairment and Mediterranean Diet. A Systematic Review and Dose-Response Meta-Analysis

Alzheimer's Disease (AD) is a pathology with increasing prevalence in the context of a more long-lived society and it is the first cause of dementia in western countries. It is important to investigate factors that can be protective and may influence its development, in order to act on them try...

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Detalles Bibliográficos
Autores: García-Casares, Natalia, Gallego Fuentes, Paloma, Barbancho, Miguel Ángel, López-Gigosos, Rosa, García-Rodríguez, Antonio, Gutiérrez-Bedmar, Mario
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Instituto de Salud Carlos III (ISCIII)
Repositorio:Repisalud
Idioma:inglés
OAI Identifier:oai:repisalud.isciii.es:20.500.12105/18480
Acceso en línea:http://hdl.handle.net/20.500.12105/18480
Access Level:acceso abierto
Palabra clave:Mediterranean diet
Alzheimer’s disease
Mild cognitive impairment
Meta-analysis
Dieta mediterránea
Enfermedad de Alzheimer
Disfunción cognitiva
Metaanálisis
Revisión sistemática
Humans
Alzheimer Disease
Diet, Mediterranean
Incidence
Prevalence
Life Style
Cognition
PubMed
Magnetic Resonance Imaging
Positron-Emission Tomography
Descripción
Sumario:Alzheimer's Disease (AD) is a pathology with increasing prevalence in the context of a more long-lived society and it is the first cause of dementia in western countries. It is important to investigate factors that can be protective and may influence its development, in order to act on them trying to reduce AD incidence and its progression. The aim of this study was to conduct a systematic review and meta-analysis to determine the effects of a higher adherence to Mediterranean diet (MD) on Mild Cognitive Impairment (MCI) and AD. A literature search in PubMed, The Cochrane Library Plus and Scopus was conducted, selecting articles that analyzed associations between MD adherence and AD biomarkers (Volumetry assessed by MRI and betamiloide and Tau deposits by PET); cognitive performance in patients at risk or presenting MCI and AD; and incidence or progression from MCI to AD. Out of the 589 studies screened, 22 studies met eligibility criteria for the systematic review and qualitative synthesis. Finally, 11 studies were included in the meta-analysis (12,458 participants). Higher adherence to MD was associated with a significantly lower risk of MCI (RR = 0.91, 95%CI = 0.85-0.97) and lower risk of AD (RR = 0.89, 95% CI = 0.84-0.93). Our results enhance the importance of taking health-promoting lifestyle measures like following Mediterranean dietary patterns in order to reduce AD risk.