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JCB:黄芪多糖能通过miR-124延长线虫寿命

2014-10-02 MedSci译 MedSci原创

研究表明黄芪可能是最具有抗衰老作用的潜在药物之一,具有大量的生物学功能。黄芪多糖(Astragalus polysaccharide,APS)可能是其中主要成分之一。线虫经常用于抗衰老研究,哈尔滨医科大学药理系研究者将黄芪多糖处理线虫,观察对线虫的生命周期的影响。研究发现,黄芪多糖能显著延长线虫的寿命,其机制与黄芪多糖显著上调miR-124水平有高。 如果过表达miR-124也能延长线虫

研究表明黄芪可能是最具有抗衰老作用的潜在药物之一,具有大量的生物学功能。黄芪多糖(Astragalus polysaccharide,APS)可能是其中主要成分之一。

线虫经常用于抗衰老研究,哈尔滨医科大学药理系研究者将黄芪多糖处理线虫,观察对线虫的生命周期的影响。研究发现,黄芪多糖能显著延长线虫的寿命,其机制与黄芪多糖显著上调miR-124水平有高。 如果过表达miR-124也能延长线虫的寿命。进一步研究发现miR-124能靶向ATF-6基因的3'UTR。在黄芪多糖处理的线虫中同样能发现ATF-6下 调。进一步,如果人为下调ATF-6的表达也能延长线虫的寿命。这些结果提示黄芪多糖能够通过上调miR-124表达,进而下调ATF-6表达,延长线虫寿命。这一结果将在现高等生物中进一步进行验证

原始出处:
Wang N, Liu J, Xie F, Gao X, Ye JH, Sun LY, Wei R, Yang BF, Ai J.miR-124/ATF-6, A Novel Lifespan Extension Pathway of Astragalus Polysaccharide in C. elegans. J Cell Biochem. 2014 Sep 4. doi: 10.1002/jcb.24961

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    2023-03-12 侠胆医心 来自上海
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    2015-09-15 smallant2002
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    2014-10-04 zblhy

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