Cross-sectional association of equol producing status with aortic calcification in Japanese men aged 40–79 years

Xiao Zhang, Akira Fujiyoshi, Aya Kadota, Keiko Kondo, Sayuki Torii, Yukiko Okami, Takashi Hisamatsu, Yuichiro Yano, Emma Barinas-Mitchell, Jared Magnani, Katsuyuki Miura, Hirotsugu Ueshima, Akira Sekikawa

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3 Citations (Scopus)


Equol is an isoflavone (ISF)-derived metabolite by the gut microbiome in certain individuals termed equol-producers (EP). Equol might be the critical anti-atherogenic component of ISFs. In a population-based study of 979 Japanese men aged 40–79 without cardiovascular (CVD) or chronic kidney disease, we measured the urinary levels of equol and ISFs. Aortic calcification (AC) in the entire aorta was assessed by electron-beam or multi-detector-row computed tomography. Subjects with log10 (urinary equol to daidzein concentration) > − 1.5 were classified as EP. EP was further classified as person with low- and high-equol. We analyzed the association between equol-producing status and AC presence, defined as AC score > 0, by the logistic regressions. We found that EP (50% of the sample) had significantly lower odds of AC presence (odds ratio (OR): 0.62, 95% confidence interval (CI): 0.39, 0.98) compared to non-EP. This association was independent of CVD risk factors. For the dose–response association, compared to non-EP, subjects with low and high levels of equol had ORs of 0.51 (95% CI 0.30, 0.84) and 0.67 (95% CI 0.39, 1.14) after adjusting for major CVD risk factors (p for trend = 0.06). ISFs concentrations were not significantly associated with AC presence (OR: 1.18, 95% CI: 0.82, 1.69). In conclusion, EP had a significantly lower burden of AC than non-EP, while ISFs were not associated with AC presence in Japanese men aged 40–79 years.

Original languageEnglish
Article number20114
JournalScientific reports
Issue number1
Publication statusPublished - Dec 2022
Externally publishedYes

ASJC Scopus subject areas

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