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Mediterranean diet is associated with lower white matter lesion volume in Mediterranean cities and lower cerebrospinal fluid Aβ₄₂ in non-Mediterranean cities in the EPAD LCS cohort

Lookup NU author(s): Dr Oliver Shannon, Professor Emma Stevenson, Dr Graciela Muniz Terrera

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2023 The Author(s). The Mediterranean diet (MedDiet) has been associated with better brain health and reduced incidence of dementia. Few studies have compared the effects of the MedDiet in early Alzheimer's disease or compared the effects of the diet within and outside of the Mediterranean region. The Mediterranean diet adherence screener (MEDAS) and MEDAS continuous scores were calculated at the baseline visit of the European Prevention of Alzheimer's Dementia Longitudinal Cohort Study (n = 1625). The scores were included in linear regression models to test for associations with hippocampal volume, log-transformed white matter lesion volume, cerebrospinal fluid pTau18, and Aβ42. Higher MEDAS scores were associated with lower log-transformed white matter lesion volume (β: −0.07, standard error [SE]: 0.02, p < 0.001). This association was only seen in the Mediterranean region (β: −0.12, SE: 0.03, p < 0.001). In the non-Mediterranean region, higher MEDAS continuous scores were associated with lower cerebrospinal fluid Aβ42 (β: −68.30, SE: 14.32, p < 0.001). More research is needed to understand the differences in the associations seen with the MedDiet and Alzheimer's disease biomarkers in different European regions.

Publication metadata

Author(s): Gregory S, Blennow K, Ritchie CW, Shannon OM, Stevenson EJ, Muniz-Terrera G

Publication type: Article

Publication status: Published

Journal: Neurobiology of Aging

Year: 2023

Volume: 131

Pages: 29-38

Print publication date: 01/11/2023

Online publication date: 20/07/2023

Acceptance date: 15/07/2023

Date deposited: 12/09/2023

ISSN (print): 0197-4580

ISSN (electronic): 1558-1497

Publisher: Elsevier Inc.

URL: https://doi.org/10.1016/j.neurobiolaging.2023.07.012

DOI: 10.1016/j.neurobiolaging.2023.07.012

Data Access Statement: The data sets analyzed for this study can be found via the EPAD website (ep-ad.org/open-access-data/overview), the data set used in the preparation of this article: doi:10.34688/epadlcs_v.imi_20.10.30.

PubMed id: 37572525

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