ArticleThe journal of nutrition, health & aging2018
The Effects of Green Tea Extract on Working Memory in Healthy Women.
Article in The journal of nutrition, health & aging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed.
- Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals.Nutrients · 2020Trial
- Review
- Green tea improves cognitive function through reducing AD-pathology and improving anti-oxidative stress capacity in Chinese middle-aged and elderly people.Frontiers in aging neuroscience · 2022Article
- Therapeutic Effects of Catechins in Less Common Neurological and Neurodegenerative Disorders.Nutrients · 2021Review
- Habitual tea drinking modulates brain efficiency: evidence from brain connectivity evaluation.Aging · 2019Article
- Understanding the Neurobiological Mechanisms of Green Tea in Modulating Cognitive Function in Neurodegenerative Disorders: A Narrative Review.Innovations in clinical neuroscienceReview
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThis study aimed to examine the effects of green tea extract on working memory in healthy younger (21 - 29 y) and older (50 - 63 y) women.
designA single-blind, placebo-controlled, crossover design was used.
settingA university laboratory.
participantsTwenty non-smoking Caucasian women were recruited in the younger (10) and older (10) age group.
interventionSubjects received 5.4 g green tea extract (at least 45% epigallocatechin-3-gallate) or placebo (cornstarch) within a 24-hour period. MEASUREMENTS: Working memory was measured by reading span and N-back task paradigm. Blood sample (20 mL) was collected and measured for plasma malondialdehyde (MDA) and total antioxidant capacity (TEAC) concentration. A 24-hour recall was conducted for each treatment period to ensure similar dietary patterns.
resultsGreen tea extract significantly improved reading span performance in older women, indicated by higher absolute and partial scores of reading span. No significant changes were observed in the younger group. N-back latencies and accuracies were not significantly different after green tea treatment in either age group. Plasma concentration of MDA and TEAC were not different after green tea extract in either group.
conclusionAcute supplementation of decaffeinated green tea extract may enhance working memory capacity of women between 50 to 63 years of age. This study provides preliminary evidence that consumption of green tea extract may enhance the cognitive performance in older adults and thus provide potential chemopreventive benefits in this group. The mechanism should be explored in future research.
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Registered trials
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