Could Sirt1-mediated epigenetic effects contribute to the longevity response to dietary restriction and be mimicked by other dietary interventions?

Could Sirt1-mediated epigenetic effects contribute to the longevity response to dietary restriction and be mimicked by other dietary interventions?
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Sirt1 介导的表观遗传效应是否有助于对饮食限制的长寿反应,并被其他饮食干预措施模仿?

DOI:
10.1007/s11357-009-9104-5
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发表时间:
2009
期刊:
Age (Dordrecht, Netherlands)
影响因子:
--
通讯作者:
Wakeling LA
Wakeling LA
中科院分区:
--
文献类型:
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作者:
Wakeling LA

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饮食限制(DR)延长了一系列进化上不同物种的寿命。多酚白藜芦醇可能是DR某些作用的饮食模拟物。哺乳动物组蛋白脱乙酰酶(HDAC)Sirt1及其同系物在调节DR和白藜芦醇对寿命/衰老的影响方面的关键作用表明,它可能是这些饮食干预影响衰老的共同渠道。我们提出了新的假设,即DR与寿命延长有关,包括通过Sirt1介导的表观遗传效应维持DNA甲基化模式,并提出包括白藜芦醇在内的饮食成分可能模仿这些作用的观点。
Dietary restriction (DR) increases lifespan in a range of evolutionarily distinct species. The polyphenol resveratrol may be a dietary mimetic of some effects of DR. The pivotal role of the mammalian histone deacetylase (HDAC) Sirt1, and its homologue in other organisms, in mediating the effects of both DR and resveratrol on lifespan/ageing suggests it may be the common conduit through which these dietary interventions influence ageing. We propose the novel hypothesis that effects of DR relevant to lifespan extension include maintenance of DNA methylation patterns through Sirt1-mediated epigenetic effects, and proffer the view that dietary components, including resveratrol, may mimic these actions.
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