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The impact of nutrient-based dietary patterns on cognitive decline in older adults
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Institute of Biomedical Technologies–National Research Council, Italy.ORCID iD: 0000-0002-9093-7643
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Stockholm Gerontology Research Center, Sweden.
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Number of Authors: 82019 (English)In: Clinical Nutrition, ISSN 0261-5614, E-ISSN 1532-1983, Vol. 38, no 6, p. 2813-2820Article in journal (Refereed) Published
Abstract [en]

Background & aims: The impact of nutrient patterns on cognitive decline is complex and findings are still inconclusive. We aimed to identify major nutrient patterns and to explore their association with cognitive decline over time among older adults. Methods: In a population-based cohort, 2250 cognitively healthy people aged >= 60 years were identified at baseline (2001-2004), and followed-up to 9 years. Global cognitive function was tested with the Mini-Mental State Examination (MMSE) at baseline and follow-ups. Nutrients intake was assessed on the basis of food intake using a 98-semi-quantitative food frequency questionnaire at baseline, and nutrient-based patterns were identified by principal components analysis based on 30 nutrients. Mixed-effects linear regression models were used to determine their association with change in cognitive function taking into account potential confounders. Results: Four major patterns (the plant-, animal-, dairy-derived nutrients and animal/plants-derived fats) were identified. Over the follow-up time, each one unit increment in plant- (beta = 0.081, P = 0.002) and animal-derived nutrients pattern scores (beta = 0.098, P < 0.001) was associated with slower decline in MMSE score. On the other hand, one-unit higher in dairy-derived nutrients pattern was related to a faster decline in global cognitive function (beta = -0.064, P = 0.014). No significant association between animal/plants fats pattern and cognitive decline was observed. In stratified analyses, the association of high scores of plants- and animal-derived nutrient pattern with slower cognitive decline was stronger in APOE epsilon 4 carriers than in epsilon 4 non-carriers. Conclusions: Plant- and animal -derived nutrients are associated with preserved cognitive function, especially among the APOE epsilon 4 carriers, whereas nutrients derived from dairy products may accelerate cognitive decline in older adults. 

Place, publisher, year, edition, pages
2019. Vol. 38, no 6, p. 2813-2820
Keywords [en]
Nutrient-based dietary patterns, Cognitive decline, Older adults, Population-based cohort study
National Category
Neurosciences Nutrition and Dietetics
Identifiers
URN: urn:nbn:se:su:diva-177595DOI: 10.1016/j.clnu.2018.12.012ISI: 000501650600042PubMedID: 30591381OAI: oai:DiVA.org:su-177595DiVA, id: diva2:1385057
Available from: 2020-01-13 Created: 2020-01-13 Last updated: 2020-01-13Bibliographically approved

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Prinelli, FedericaAdorni, Fulvio
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