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Article Dans Une Revue Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring Année : 2020

Refined carbohydrate-rich diet is associated with long-term risk of dementia and Alzheimer's disease in apolipoprotein E ε4 allele carriers

Résumé

Abstract INTRODUCTION: In animal models, refined carbohydrates (RF) worsen Alzheimer’s disease (AD). However, the long-term effects of high RF intake on the risk of dementia and AD are poorly described in epidemiological studies. Moreover, the interaction between RF and apolipoprotein E ε4 allele (APOE-ε4) is unknown. Our study investigated whether RF-rich diets are associated with the risk of dementia and AD. METHODS: The glycemic load was quantified in 2,777 elderly participants from the French Three-City Study to estimate RF intake. Then, the association between glycemic load and risk of dementia and AD, and the interaction with APOE-ε4 over a 12-year period were assessed using proportional hazards models. RESULTS: After adjustment for potential confounders, high afternoon-snack glycemic load was associated with increased dementia and AD risk in APOE-ε4 carriers (HR = 1.27 [1.03-1.56]). DISCUSSION: This study highlights that RF-rich diets are a risk factor for dementia and AD in APOE-ε4 carriers.
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Dates et versions

hal-02978591 , version 1 (18-09-2020)
hal-02978591 , version 2 (26-10-2020)

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Mélissa Gentreau, Virginie Chuy, Catherine Feart, Cécilia Samieri, Karen Ritchie, et al.. Refined carbohydrate-rich diet is associated with long-term risk of dementia and Alzheimer's disease in apolipoprotein E ε4 allele carriers. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring, 2020, 16 (7), pp.1043-1053. ⟨10.1002/alz.12114⟩. ⟨hal-02978591v1⟩
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