FASEB J:卵巢切除小鼠中,二氢黄豆苷元和6-羟基水杨苷可增强大豆抗骨质疏松的作用

2018-11-01 MedSci MedSci原创

已知摄入大豆对绝经后妇女的骨质疏松症具有有益作用。然而,大豆发酵对生物利用度和抗骨质疏松作用的影响尚未阐明。为了解决这个问题,我们给卵巢切除的C57BL/6J小鼠喂了5%非发酵生大豆(RS)-或发酵大豆(FS)补充饮食。 结果显示,治疗18周后,微计算机断层扫描显示,与RS相比,FSs可显著增加骨矿物质密度。这是因为骨形态发生蛋白2(Bmp2)及其下游目标骨桥蛋白在骨组织中的上调。我们分析了

已知摄入大豆对绝经后妇女的骨质疏松症具有有益作用。然而,大豆发酵对生物利用度和抗骨质疏松作用的影响尚未阐明。为了解决这个问题,我们给卵巢切除的C57BL/6J小鼠喂了5%非发酵生大豆(RS)-或发酵大豆(FS)补充饮食。

结果显示,治疗18周后,微计算机断层扫描显示,与RS相比,FSs可显著增加骨矿物质密度。这是因为骨形态发生蛋白2(Bmp2)及其下游目标骨桥蛋白在骨组织中的上调。我们分析了RS-或FS-喂养小鼠血清中的异黄酮代谢物谱,并观察到FS喂养小鼠血清中19种异黄酮代谢物的水平明显增加。在这些代谢物中,我们观察到二氢黄豆苷元(DHD)和6-羟基水杨苷(6-HD)在MC3T3-E1细胞中通过Bmp2信号通路增加骨生成,并且在RAW264.7中减少核因子κ-B配体诱导的破骨细胞生成的受体激活因子。细胞通过抑制NF-κB活化和MAPK磷酸化。

综上所述,这些数据表明FSs的生物利用度提高是由于摄入大豆后产生活性代谢物如DHD和6-HD所致。DHD和6-HD可用作改善骨质疏松性骨质流失的潜在疗法。

原始出处:

Kim JS, Lee H, et al., Dihydrodaidzein and 6-hydroxydaidzein mediate the fermentation-induced increase of anti-osteoporotic effect of soybeans in ovariectomized mice. FASEB J. 2018 Oct 30:fj201800953R. doi: 10.1096/fj.201800953R.

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    2019-02-10 gracezdd
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    2018-11-03 Eleven17
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    2018-11-01 医者仁心5538

    学习了

    0