Financiado en parte por Wild Blueberry Association of North America
The effects of acute wild blueberry supplementation on the cognition of 7-10-year-old schoolchildren
Barfoot KL, May G, Lamport DJ, Ricketts J, Riddell PM, Williams CM
European journal of nutrition · 48 citas
Etiquetas de revisión
Alimentación controladaFinanciado por la industriaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- Comida provista por los investigadores
Quién lo pagó
- Financiación
- Financiado por la industria
- Gobierno
- Economic and Social Research Council
- Grupo de la industria
- Wild Blueberry Association of North America
Según 2 financiadores declarados.
Publicación
- Publicado
- 2018-10-16 · Eur J Nutr · vol. 58 · número 7 · págs. 2911–2920
- Editorial
- Springer Science+Business Media
- Citado
- 73 citas · más que el 93% de estudios similares · 3.0× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 46 trabajos
- Acceso
- Acceso abierto (revista híbrida) · CC-BY
- Áreas de investigación
- Phytochemicals and Antioxidant Activities · Ginkgo biloba and Cashew Applications · Antioxidant Activity and Oxidative Stress
- Palabras clave
- Cognition, Placebo, Mood, Audiology, Psychology, Executive functions, Effects of sleep deprivation on cognitive performance, Cognitive decline, Psychological intervention, Verbal learning, Episodic memory, Medicine, Developmental psychology, Dementia, Clinical psychology, Psychiatry, Internal medicine
- MeSH
- humans, single-blind method, cognition, memory, short-term, reaction time, dietary supplements, reading, child, female, male, fruit and vegetable juices, blueberry plants
6 autores
- Katie L. Barfoot🇬🇧University of Reading
- Gabrielle May🇬🇧Royal Holloway University of London; University of Reading
- Daniel Joseph Lamport🇬🇧University of Reading
- Jessie Ricketts🇬🇧Royal Holloway University of London
- PATRICIA M. RIDDELL🇬🇧University of Reading
- Claire Michelle Williams🇬🇧 · autor de correspondenciaUniversity of Reading
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
Previous evidence suggests consumption of flavonoids, a sub-class of polyphenols, is associated with improved cognitive function across the lifespan. In particular, acute intervention of a flavonoid-rich wild blueberry (WBB) drink has been shown to boost executive function (EF), short-term memory and mood 2-6 h post-consumption in 7-10-year-old children. However, confirmation of the aspects of EF and memory susceptible to WBB ingestion is required, particularly during childhood, a critical period of neurological development. In addition, the child literature on berry flavonoid supplementation and cognition highlights the potential for such interventions to elicit positive benefits to real-world educational scenarios, such as reading, a complex ability which relies upon aspects of cognition already known to improve following WBB.
Methods
Here we examined which aspects of EF and memory are susceptible to acute WBB, as well as investigating whether acute WBB could further benefit reading ability. Fifty-four healthy children, aged 7-10 years, consumed a 200 ml WBB drink (253 mg anthocyanins) or a matched placebo according to a randomised, single-blind, parallel-groups design. Verbal memory (Auditory Verbal Learning Task; AVLT), EF (Modified Attention Network Task; MANT), and reading efficiency (Test of Word Reading Efficiency-2; TOWRE-2) were assessed at baseline and 2 h post-consumption.
Results
For the MANT, significantly quicker RTs were observed for WBB participants when compared to placebo participants on 120 ms trials, without cost to accuracy. Furthermore, WBB participants showed enhanced verbal memory performance on the AVLT, recalling more words than placebo participants on short delay and memory acquisition measures post-consumption. Despite these significant improvements in cognitive performance, no significant effects were observed for reading measures.
Conclusion
Consumption of WBB was found to significantly improve memory and attentional aspects of EF. This indicates that a flavonoid-rich blueberry product, equivalent to 240 g or 1½ cups of fresh blueberries can provide acute cognitive benefits in children. These findings support accumulating evidence that flavonoid-rich products are beneficial for healthy brain function, particularly during critical developmental periods. However, the lack of findings relating to reading ability suggested acute WBB may not be sufficient to elicit benefits to reading. Chronic supplementation and other more sensitive reading measures should be considered for examining the effects of WBB on such a complex skill in the future.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY).
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