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Tytuł:
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Green tea consumption is associated with annual changes in hippocampal volumes: A longitudinal study in community-dwelling middle-aged and older Japanese individuals.
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Autorzy:
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Zhang S; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Otsuka R; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan. Electronic address: .
Nishita Y; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Nakamura A; Department of Biomarker Research, National Center for Geriatrics and Gerontology, Aichi, Japan; Department of Clinical and Experimental Neuroimaging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Kato T; Department of Clinical and Experimental Neuroimaging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Iwata K; Department of Clinical and Experimental Neuroimaging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Tange C; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Tomida M; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan.
Ando F; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan; Faculty of Health and Medical Sciences, Aichi Shukutoku University, Aichi, Japan.
Shimokata H; Department of Epidemiology of Aging, National Center for Geriatrics and Gerontology, Aichi, Japan; Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, Aichi, Japan.
Arai H; National Center for Geriatrics and Gerontology, Aichi, Japan.
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Źródło:
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Archives of gerontology and geriatrics [Arch Gerontol Geriatr] 2021 Sep-Oct; Vol. 96, pp. 104454. Date of Electronic Publication: 2021 Jun 01.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Original Publication: Amsterdam : Elsevier Biomedical Press, c1982-
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MeSH Terms:
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Independent Living*
Tea*
Aged ; Female ; Hippocampus/diagnostic imaging ; Humans ; Japan ; Longitudinal Studies ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Prospective Studies
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Contributed Indexing:
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Keywords: Atrophy; Cohort; Gray matter; Green tea; Hippocampus; White matter
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Substance Nomenclature:
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0 (Tea)
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Entry Date(s):
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Date Created: 20210613 Date Completed: 20210906 Latest Revision: 20210906
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Update Code:
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20240105
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DOI:
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10.1016/j.archger.2021.104454
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PMID:
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34119808
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Background: To investigate the association between green tea consumption and the annual rate of change of gray matter (GM), white matter (WM), and hippocampal volumes in community-dwelling middle-aged and older Japanese individuals.
Methods: A prospective cohort study with two years of follow-up was conducted as part of the National Institute for Longevity Sciences-Longitudinal Study of Aging (NILS-LSA) project. A total of 1693 participants (862 men and 831 women, aged 40-89 years) were included. Green tea consumption (mL/day) data were collected with a 3-day dietary record. Volumes of GM, WM, and the hippocampus were estimated by T1-weighted brain magnetic resonance imaging and FreeSurfer software. The GM ratio, WM ratio, and hippocampal ratio (HR) were calculated as the percentages of total intracranial volume, respectively.
Results: The mean (SD) annual rate of change of hippocampal volume [(HR at baseline - HR at follow-up)/HR at baseline/follow-up years×100%] was 0.499 (1.128) (%). In the multivariable-adjusted general linear model, green tea consumption was negatively associated only with the annual rate of change of hippocampal volume (%) [β (95% CI) for each 1 mL/day increase in green tea consumption = -20.2E-5 (-35.0E-5 to -5.3E-5); P-value = 0.008]. No associations were observed for the annual rate of change of GM or WM volumes. The results remained significant when the analysis was limited to those with stable green tea consumption and were especially evident among individuals aged 65 years and older and among women.
Conclusions: In this study, higher green tea consumption was associated with less annual hippocampal atrophy, and each additional 100 mL/day of green tea intake was related to a reduction of approximately 5% in annual hippocampal atrophy. This association was especially evident among older individuals and among women. Further study in different settings is needed to confirm this association.
(Copyright © 2021 The Authors. Published by Elsevier B.V. All rights reserved.)
