Evidence map›Paper›PMID 38794967›Full record

ArticleEuropean journal of neurology2024

The Mediterranean diet is not associated with neuroimaging or cognition in middle-aged adults: a cross-sectional analysis of the PREVENT dementia programme.

Sarah Gregory, Ingrid Buller-Peralta, Katie Bridgeman, Vanessa De La Cruz Góngora, Maria-Eleni Dounavi, Audrey Low, Georgios Ntailianis, John O'Brien, Mario A Parra, Craig W Ritchie and 4 more

Abstract read
In one paragraph

Article in European journal of neurology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
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  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Sarah GregoryEdinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.ORCID 0000-0001-9864-8240
Ingrid Buller-PeraltaEdinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Katie BridgemanEdinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Vanessa De La Cruz GóngoraGlobal Brain Health Institute, Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland.
Maria-Eleni DounaviDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Audrey LowDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Georgios NtailianisEdinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
John O'BrienDepartment of Psychiatry, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
Mario A ParraDepartment of Psychological Sciences and Health, University of Strathclyde, Glasgow, UK.
Craig W RitchieEdinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
Karen RitchieINM, Université de Montpellier, INSERM, Montpellier, France.
Oliver M ShannonHuman Nutrition and Exercise Research Centre, Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.
Emma J StevensonHuman Nutrition and Exercise Research Centre, Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.
Graciela Muniz-TerreraEdinburgh Dementia Prevention, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.

Funding

Alzheimer's Association TriBEKa-17-519007Alzheimer's Society 178Alzheimer's Society 264Alzheimer's Society 329Medical Research Council MR/T001852/1
6 · The paper itself

Abstract

background and purposeThe Mediterranean diet (MedDiet) has been associated with reduced dementia incidence in several studies. It is important to understand if diet is associated with brain health in midlife, when Alzheimer's disease and related dementias are known to begin.

methodsThis study used data from the PREVENT dementia programme. Three MedDiet scores were created (the Pyramid, Mediterranean Diet Adherence Screener [MEDAS] and MEDAS continuous) from a self-reported food frequency questionnaire. Primary outcomes were hippocampal volume and cube-transformed white matter hyperintensity volume. Secondary outcomes included cornu ammonis 1 and subiculum hippocampal subfield volumes, cortical thickness and measures of cognition. Sex-stratified analyses were run to explore differential associations between diet and brain health by sex. An exploratory path analysis was conducted to study if any associations between diet and brain health were mediated by cardiovascular risk factors for dementia.

resultsIn all, 504 participants were included in this analysis, with a mean Pyramid score of 8.10 (SD 1.56). There were no significant associations between any MedDiet scoring method and any of the primary or secondary outcomes. There were no differences by sex in any analyses and no significant mediation between the Pyramid score and global cognition by cardiovascular risk factors.

conclusionsOverall, this study did not find evidence for an association between the MedDiet and either neuroimaging or cognition in a midlife population study. Future work should investigate associations between the MedDiet and Alzheimer's disease and related dementias biomarkers as well as functional neuroimaging in a midlife population.

Indexed as

CognitionDementiaDiet, MediterraneanAgedCross-Sectional StudiesFemaleHippocampusHumansMagnetic Resonance ImagingMaleMiddle AgedNeuroimagingcognitiondietmidlifeneuroimaging

Identifiers

PMID38794967
PMCPMC11236004

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.