Resveratrol delays age-related deterioration and mimics transcriptional aspects of dietary restriction without extending life span.

Resveratrol delays age-related deterioration and mimics transcriptional aspects of dietary restriction without extending life span.
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DOI:
10.1016/j.cmet.2008.06.011
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发表时间:
2008-08
期刊:
影响因子:
29
通讯作者:
de Cabo R
de Cabo R
中科院分区:
生物学1区
文献类型:
--
作者:
Pearson KJ;Baur JA;Lewis KN;Peshkin L;Price NL;Labinskyy N;Swindell WR;Kamara D;Minor RK;Perez E;Jamieson HA;Zhang Y;Dunn SR;Sharma K;Pleshko N;Woollett LA;Csiszar A;Ikeno Y;Le Couteur D;Elliott PJ;Becker KG;Navas P;Ingram DK;Wolf NS;Ungvari Z;Sinclair DA;de Cabo R

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一种能够安全地模拟饮食限制(DR)以延缓实验动物年龄相关疾病的能力的小分子受到了极大的追捧。我们和其他人已经证明,白藜芦醇在低等生物中模仿 DR 的作用。在小鼠中,我们发现白藜芦醇在多个组织中诱导基因表达模式,与 DR 和每隔一天喂养诱导的基因表达模式相似。此外,喂食白藜芦醇的老年小鼠显示出衰老迹象显着减少,包括白蛋白尿减少、血管内皮炎症和细胞凋亡减少、主动脉弹性增加、运动协调性增强、白内障形成减少和骨矿物质密度保持。然而,当小鼠从 12 个月大时开始接受白藜芦醇治疗时,喂食标准饮食的小鼠并没有活得更长。我们的研究结果表明,白藜芦醇治疗对小鼠具有一系列有益作用,但在中年开始随意喂养的动物中并不会延长它们的寿命。
A small molecule that safely mimics the ability of dietary restriction (DR) to delay age-related diseases in laboratory animals is greatly sought after. We and others have shown that resveratrol mimics effects of DR in lower organisms. In mice, we find that resveratrol induces gene expression patterns in multiple tissues that parallel those induced by DR and every-other-day feeding. Moreover, resveratrol-fed elderly mice show a marked reduction in signs of aging including reduced albuminuria, decreased inflammation and apoptosis in the vascular endothelium, increased aortic elasticity, greater motor coordination, reduced cataract formation, and preserved bone mineral density. However, mice fed a standard diet did not live longer when treated with resveratrol beginning at 12 months of age. Our findings indicate that resveratrol treatment has a range of beneficial effects in mice but does not increase the longevity of ad libitum-fed animals when started mid-life.
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