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Vol. 26, No. 1, 2008
Issue release date: July 2008
Section title: Original Research Article
Dement Geriatr Cogn Disord 2008;26:50–57
(DOI:10.1159/000141484)

High Tofu Intake Is Associated with Worse Memory in Elderly Indonesian Men and Women

Hogervorst E. · Sadjimim T. · Yesufu A. · Kreager P. · Rahardjo T.B.
aDepartment of Human Sciences, Loughborough University, Loughborough, and bOxford Institute of Ageing, University of Oxford, Oxford, UK; cUniversity of Respati Health Institute, Yogyakarta, and dCenter for Health Research, University of Indonesia, Jakarta, Indonesia

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Article / Publication Details

First-Page Preview
Abstract of Original Research Article

Accepted: 7/5/2008
Published online: 6/27/2008

Number of Print Pages: 8
Number of Figures: 0
Number of Tables: 4

ISSN: 1420-8008 (Print)
eISSN: 1421-9824 (Online)

For additional information: http://www.karger.com/DEM

Abstract

Background/Aims: Cell culture studies suggest that phytoestrogens, abundant in soy products such as tempe and tofu, could protect against cognitive decline. Paradoxically, the Honolulu Asia Aging Study reported an increased risk for cognitive impairment and other dementia markers with high tofu (soybean curd) intake. Methods: A cross-sectional study was carried out in 2 rural sites (Borobudur and Sumedang) and 1 urban site (Jakarta) among mainly Javanese and Sundanese elderly (n = 719, 52–98 years of age). Memory was measured using a word learning test sensitive to dementia and soy consumption was assessed using Food Frequency Questionnaire items. Results: High tofu consumption was associated with worse memory (β = –0.18, p < 0.01, 95% CI = –0.34 to –0.06), while high tempe consumption (a fermented whole soybean product) was independently related to better memory (β = 0.12, p < 0.05, 95% CI = 0.00–0.28), particularly in participants over 68 years of age. Fruit consumption also had an independent positive association. The analyses were controlled for age, sex, education, site and intake of other foods. Conclusion: The results for tofu consumption as a risk factor for low memory function may tie in with the Honolulu Asia Aging Study data. It is unclear whether these negative associations could be attributed to potential toxins or to its phytoestrogen levels. Estrogen (through which receptors phytoestrogens can exert effects) was found to increase dementia risk in women over 65 years of age. Tempe contains high levels of phytoestrogens, but (due to fermentation) also exhibits high folate levels which may exert protective effects. Future studies should validate these findings and investigate potential mechanisms.


  

Author Contacts

E. Hogervorst
Department of Human Sciences
Brockington Building, Loughborough University
Loughborough LE11 3TU (UK)
Tel. +44 1509 223 020, Fax +44 1509 223 940, E-Mail e.hogervorst@lboro.ac.uk

  

Article Information

Accepted: May 7, 2008
Published online: June 27, 2008
Number of Print Pages : 8
Number of Figures : 0, Number of Tables : 4, Number of References : 28

  

Publication Details

Dementia and Geriatric Cognitive Disorders

Vol. 26, No. 1, Year 2008 (Cover Date: July 2008)

Journal Editor: Chan-Palay V. (New York, N.Y.)
ISSN: 1420–8008 (Print), eISSN: 1421–9824 (Online)

For additional information: http://www.karger.com/DEM


Article / Publication Details

First-Page Preview
Abstract of Original Research Article

Accepted: 7/5/2008
Published online: 6/27/2008

Number of Print Pages: 8
Number of Figures: 0
Number of Tables: 4

ISSN: 1420-8008 (Print)
eISSN: 1421-9824 (Online)

For additional information: http://www.karger.com/DEM


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