Improved metabolic function and cognitive performance in middle-aged adults following a single dose of wild blueberry.
Purpose: Research has demonstrated cognitive benefits following acute polyphenol-rich berry consumption in children and young adults. Berry intake also has been associated with metabolic benefits. No study has yet examined cognitive performance in middle-aged adults. We investigated the relationship...
| Publicado en: | European Journal of Nutrition Vol. 60; no. 3; pp. 1521 - 1537 |
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| Autores principales: | , , , , , , |
| Formato: | research tables/charts randomized controlled trial Journal Article |
| Publicado: |
Springer Nature
Apr2021
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=149433583&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 149433583 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14366207 CR0 jtl: European Journal of Nutrition issn: 14366207 maglogo: N pubinfo: dt: Apr2021 vid: 60 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 149433583 144899151 149433583 149433583 10.1007/s00394-020-02336-8 149433583 ppf: 1521 ppct: 16 formats: fmt: @attributes: type: P tig: atl: Improved metabolic function and cognitive performance in middle-aged adults following a single dose of wild blueberry. aug: au: Whyte, Adrian R. Rahman, Sajida Bell, Lynne Edirisinghe, Indika Krikorian, Robert Williams, Claire M. Burton-Freeman, Britt affil: School of Psychology and Clinical Language Sciences, University of Reading, Earley Gate, Whiteknights, RG6 6AL, Reading, UK sug: subj: Metabolic Syndrome X Cognition In Middle Age Cognition In Adulthood Blueberry Blueberry Therapeutic Use Treatment Outcomes Human Adult Middle Age Aged Random Assignment Randomized Controlled Trials Double-Blind Studies Crossover Design Episodic Memory Executive Function Triglycerides Body Mass Index Glucose Insulin Descriptive Statistics Clinical Assessment Tools Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years ab: Purpose: Research has demonstrated cognitive benefits following acute polyphenol-rich berry consumption in children and young adults. Berry intake also has been associated with metabolic benefits. No study has yet examined cognitive performance in middle-aged adults. We investigated the relationships among cognitive and metabolic outcomes in middle-aged adults following wild blueberry (WBB) consumption. Methods: Thirty-five individuals aged 40–65 years participated in a randomized, double blind, cross-over study. Participants consumed a breakfast meal and 1-cup equivalent WBB drink or matched placebo beverage on two occasions. Participants completed cognitive tasks and had blood drawn before and at regular intervals for 8 h after each meal/treatment. Changes in episodic memory and executive function (EF) were assessed alongside plasma levels of glucose, insulin, and triglyceride. Results: Analysis of the memory-related Auditory Verbal Learning Task (AVLT) word recognition measure revealed a decrease in performance over the test day after placebo intake, whereas performance after WBB was maintained. For the AVLT word rejection measure, participants identified more foils following WBB in comparison to placebo. Benefits were also observed for EF on the Go/No-Go task with fewer errors following WBB intake on cognitively demanding invalid No-Go trials in comparison to placebo. Furthermore, in comparison to placebo, response times were faster for the Go/No-Go task, specifically at 4 h and 8 h following WBB treatment. We also observed reduced post-meal glucose and insulin, but not triglyceride, concentrations in comparison to placebo over the first 2 h following ingestion. Though the addition of Age, BMI, glucose and insulin as covariates to the analysis reduced the significant effect of beverage for AVLT word rejection, metabolic outcomes did not interact with treatment to predict cognitive performance with the exception of one isolated trend. Conclusions: This study indicated acute cognitive benefits of WBB intake in cognitively healthy middle-aged individuals, particularly in the context of demanding tasks and cognitive fatigue. WBB improved glucose and insulin responses to a meal. Further research is required to elucidate the underlying mechanism by which WBB improves cognitive function. pubtype: Academic Journal doctype: research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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