Correction: A diet containing high- <i>versus</i> low-daidzein does not affect bone density and osteogenic gene expression in the obese Zucker rat model

Rochester, Eric; Wickman, Brooke E.; Bell, Andrea; Simecka, Christy; Clayton, Zachary S.; Hakkak, Reza; Hooshmand, Shirin

doi:10.1039/c9fo90058f

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“…Several animal models and cultured cells 22,23 suggest that daidzein is more efficient than other phytoestrogens, but not all, in the promotion of bone formation or prevention of bone resorption. 24 The favorable effect of purified daidzein on bone has not been reported in human controlled trials.…”

Section: Introductionmentioning

confidence: 99%

Effect of whole soy and isoflavones daidzein on bone turnover and inflammatory markers: a 6-month double-blind, randomized controlled trial in Chinese postmenopausal women who are equol producers

Liu

Chen

et al. 2020

Therapeutic Advances in Endocrinology

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Background: Human studies have demonstrated the beneficial effects of soy or isoflavones on bone metabolism. However, conflicting data remain. Equol is the intestinal metabolite of the isoflavone daidzein. The health benefits of soy are more pronounced in equol producers than those not producing equol. This 6-month randomized controlled trial aimed to examine the effect of whole soy (soy flour) and purified daidzein on bone turnover markers (BTMs) in Chinese postmenopausal women who are equol producers. Methods: A total of 270 eligible women were randomized to either one of the three isocaloric supplements as follows: 40 g soy flour (whole soy group), 40 g low-fat milk powder + 63 mg daidzein (daidzein group), or 40 g low-fat milk powder (placebo group) given as a solid beverage daily for 6 months. The following fasting venous samples were collected at the baseline and end of the trial to analyze BTMs: serum cross-linked C-telopeptides of type I collagen, bone-specific alkaline phosphatase, osteocalcin, procollagen type I N-terminal propeptide, and 25(OH)D3. Inflammation-related biomarkers, such as serum interleukin-6, tumor necrosis factor-alpha, C-reactive protein, transferrin, and homocysteine, were also tested to explore potential mechanisms. Results: A total of 253 subjects validly completed the study protocol. Urinary isoflavones suggested a good compliance to the treatments. Intention-to-treat and per-protocol analyses indicated no significant difference in the 6-month or percentage changes in the parameters of bone metabolism and inflammatory markers among the three treatment groups. Conclusions: Whole soy and purified daidzein at provided dosages exhibited no significant effect on the bone metabolism and inflammation levels among Chinese equol-producing postmenopausal women. Trial registration: ClinicalTrials.gov identifier NCT01270737.

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Section: Introductionmentioning

confidence: 99%

Effect of whole soy and isoflavones daidzein on bone turnover and inflammatory markers: a 6-month double-blind, randomized controlled trial in Chinese postmenopausal women who are equol producers

Liu

Chen

et al. 2020

Therapeutic Advances in Endocrinology

View full text Add to dashboard Cite

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Correction: A diet containing high- versus low-daidzein does not affect bone density and osteogenic gene expression in the obese Zucker rat model

Abstract: Correction for ‘A diet containing high- versus low-daidzein does not affect bone density and osteogenic gene expression in the obese Zucker rat model’ by Eric Rochester et al., Food Funct., 2019, 10, 6851–6857.

Cited by 1 publication

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Effect of whole soy and isoflavones daidzein on bone turnover and inflammatory markers: a 6-month double-blind, randomized controlled trial in Chinese postmenopausal women who are equol producers

Effect of whole soy and isoflavones daidzein on bone turnover and inflammatory markers: a 6-month double-blind, randomized controlled trial in Chinese postmenopausal women who are equol producers

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