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Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment

BACKGROUND: Prospective studies suggest that tea consumption may decrease the risk for cognitive impairment in late life. However, little research has examined the association between tea consumption and cognitive performance across multiple domains. In addition, no research has examined the benefit...

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Autores principales: Xu, Hua, Fiocco, Alexandra J, Liu, Xiaohua, Wang, Tao, Li, Guanjun, Xiao, Shifu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BMJ Publishing Group 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8351472/
https://www.ncbi.nlm.nih.gov/pubmed/34423254
http://dx.doi.org/10.1136/gpsych-2021-100512
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author Xu, Hua
Fiocco, Alexandra J
Liu, Xiaohua
Wang, Tao
Li, Guanjun
Xiao, Shifu
author_facet Xu, Hua
Fiocco, Alexandra J
Liu, Xiaohua
Wang, Tao
Li, Guanjun
Xiao, Shifu
author_sort Xu, Hua
collection PubMed
description BACKGROUND: Prospective studies suggest that tea consumption may decrease the risk for cognitive impairment in late life. However, little research has examined the association between tea consumption and cognitive performance across multiple domains. In addition, no research has examined the benefit of tea consumption on cognitive performance among older adults with existing impairment. AIMS: The current study examined the association between tea consumption and performance on tasks of global cognitive function, episodic memory and executive function in cognitively healthy (CH) older adults and older adults with mild cognitive impairment (MCI). METHODS: The analytical sample included 1849 community-dwelling older adults from the Shanghai Brain Aging Study (65.6% female, mean age of 69.50 (8.02) years). Following ascertainment of cognitive function, 816 were categorised as MCI. In addition to completion of a demographics questionnaire, participants reported their tea consumption and completed a battery of tests to measure global cognitive function, episodic memory and working memory. RESULTS: Independent analyses of covariance revealed a significant association between tea consumption and measures of episodic memory; however, these associations were restricted to CH older adults but not older adults with MCI. Tea consumption was not associated with working memory performance. CONCLUSIONS: The current study suggests that the benefit of tea consumption is restricted to cognitively healthy older adults and does not extend to older adults with MCI.
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spelling pubmed-83514722021-08-20 Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment Xu, Hua Fiocco, Alexandra J Liu, Xiaohua Wang, Tao Li, Guanjun Xiao, Shifu Gen Psychiatr Original Research BACKGROUND: Prospective studies suggest that tea consumption may decrease the risk for cognitive impairment in late life. However, little research has examined the association between tea consumption and cognitive performance across multiple domains. In addition, no research has examined the benefit of tea consumption on cognitive performance among older adults with existing impairment. AIMS: The current study examined the association between tea consumption and performance on tasks of global cognitive function, episodic memory and executive function in cognitively healthy (CH) older adults and older adults with mild cognitive impairment (MCI). METHODS: The analytical sample included 1849 community-dwelling older adults from the Shanghai Brain Aging Study (65.6% female, mean age of 69.50 (8.02) years). Following ascertainment of cognitive function, 816 were categorised as MCI. In addition to completion of a demographics questionnaire, participants reported their tea consumption and completed a battery of tests to measure global cognitive function, episodic memory and working memory. RESULTS: Independent analyses of covariance revealed a significant association between tea consumption and measures of episodic memory; however, these associations were restricted to CH older adults but not older adults with MCI. Tea consumption was not associated with working memory performance. CONCLUSIONS: The current study suggests that the benefit of tea consumption is restricted to cognitively healthy older adults and does not extend to older adults with MCI. BMJ Publishing Group 2021-08-06 /pmc/articles/PMC8351472/ /pubmed/34423254 http://dx.doi.org/10.1136/gpsych-2021-100512 Text en © Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) .
spellingShingle Original Research
Xu, Hua
Fiocco, Alexandra J
Liu, Xiaohua
Wang, Tao
Li, Guanjun
Xiao, Shifu
Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
title Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
title_full Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
title_fullStr Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
title_full_unstemmed Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
title_short Association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
title_sort association between tea consumption and cognitive function in cognitively healthy older adults and older adults with mild cognitive impairment
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8351472/
https://www.ncbi.nlm.nih.gov/pubmed/34423254
http://dx.doi.org/10.1136/gpsych-2021-100512
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