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Significant inverse association of equol-producer status with coronary artery calcification but not dietary isoflavones in healthy Japanese men

Authors :
Maryam Zaid
Abhishek Vishnu
Akira Sekikawa
Rhobert W. Evans
Vasudha Ahuja
Akira Fujiyoshi
Takashi Hisamatsu
Hirotsugu Ueshima
Naoko Miyagawa
Tomonori Okamura
Aya Kadota
Katsuyuki Miura
Source :
Br J Nutr
Publication Year :
2017
Publisher :
Cambridge University Press (CUP), 2017.

Abstract

Equol, a metabolite of the dietary isoflavone daidzein, is produced by the action of gut bacteria in some individuals who are termed as equol-producers. It is proposed to have stronger atheroprotective properties than dietary isoflavones. We examined a cross-sectional association of dietary isoflavones and equol-producer status with coronary artery calcification (CAC), a biomarker of coronary atherosclerosis, among men in Japan. A population-based sample of 272 Japanese men aged 40–49 years recruited from 2004 to 2007 was examined for serum isoflavones, serum equol, CAC and other factors. Equol-producers were classified as individuals having a serum level of equol >83 nm. The presence of CAC was defined as a coronary Ca score ≥10 Agatston units. The associations of dietary isoflavones and equol-producers with CAC were analysed using multiple logistic regression. The median of dietary isoflavones, equol and CAC were 512·7 (interquartile range (IQR) 194·1, 1170·0), 9·1 (IQR 0·10, 33·1) and 0·0 (IQR 0·0, 1·0) nm, respectively. Prevalence of CAC and equol-producers was 9·6 and 16·0 %, respectively. Dietary isoflavones were not significantly associated with CAC. After multivariable adjustment, the OR for the presence of CAC in equol-producers compared with equol non-producers was 0·10 (95 % CI 0·01, 0·90, P

Details

ISSN :
14752662 and 00071145
Volume :
117
Database :
OpenAIRE
Journal :
British Journal of Nutrition
Accession number :
edsair.doi.dedup.....f36f2c2a815d83b914ec4e370d6118ce
Full Text :
https://doi.org/10.1017/s000711451600458x