Soy Improves Cardiometabolic Health and Cecal Microbiota in Female Low-Fit Rats.

Soy Improves Cardiometabolic Health and Cecal Microbiota in Female Low-Fit Rats.
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大豆改善女性低拟合大鼠的心脏代谢健康和盲肠微生物群。

DOI:
10.1038/s41598-017-08965-0
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发表时间:
2017-08-23
期刊:
影响因子:
4.6
通讯作者:
Vieira-Potter VJ
Vieira-Potter VJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Cross TL;Zidon TM;Welly RJ;Park YM;Britton SL;Koch LG;Rottinghaus GE;de Godoy MRC;Padilla J;Swanson KS;Vieira-Potter VJ

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富含植物雌激素的大豆被认为可以改善更年期相关的肥胖和代谢功能障碍,原因尚不清楚。肠道微生物群与肥胖和代谢功能障碍的发展有关。我们的目的是确定大豆对低运行能力(LCR)的卵巢切除(OVX)大鼠的心脏代谢健康、脂肪组织炎症和盲肠微生物群的影响。与假手术(SHM)完整的对照LCR大鼠相比,低运行能力(LCR)模型先前已被证明可以模拟人类更年期。在本研究中,食用大豆在不影响能量摄入和体力活动的情况下,显著改善了低跑能力OVX大鼠的胰岛素敏感性和身体组成。此外,大豆显著改善了LCR大鼠的血脂、脂肪组织炎症和主动脉僵硬。与不含大豆的对照饮食相比,大豆显著改变了LCR大鼠的盲肠微生物群落,导致厚壁菌门:拟杆菌门比例降低。本研究发现的盲肠细菌分类群与代谢参数的相关性表明,Prevotella、Dorea和Phascolarctobacterium可能是我们感兴趣的分类群。我们的研究结果表明,在模拟人类更年期的大鼠模型中,饮食大豆可以改善肥胖、胰岛素敏感性、脂肪组织炎症和动脉僵硬,并对肠道微生物群落产生有益的改变。
Phytoestrogen-rich soy is known to ameliorate menopause-associated obesity and metabolic dysfunction for reasons that are unclear. The gut microbiota have been linked with the development of obesity and metabolic dysfunction. We aimed to determine the impact of soy on cardiometabolic health, adipose tissue inflammation, and the cecal microbiota in ovariectomized (OVX) rats bred for low-running capacity (LCR), a model that has been previously shown to mimic human menopause compared to sham-operated (SHM) intact control LCR rats. In this study, soy consumption, without affecting energy intake or physical activity, significantly improved insulin sensitivity and body composition of OVX rats bred for low-running capacity. Furthermore, soy significantly improved blood lipid profile, adipose tissue inflammation, and aortic stiffness of LCR rats. Compared to a soy-free control diet, soy significantly shifted the cecal microbial community of LCR rats, resulting in a lower Firmicutes:Bacteroidetes ratio. Correlations among metabolic parameters and cecal bacterial taxa identified in this study suggest that taxa Prevotella, Dorea, and Phascolarctobacterium may be taxa of interest. Our results suggest that dietary soy ameliorates adiposity, insulin sensitivity, adipose tissue inflammation, and arterial stiffness and exerts a beneficial shift in gut microbial communities in a rat model that mimics human menopause.
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