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SIRT6 Overexpression Improves Various Aspects of Mouse Healthspan

机译:SIRT6过表达改善了鼠标健康锚的各个方面

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The extension in human lifespan in the last century results in a significant increase in incidence of age related diseases. It is therefore crucial to identify key factors that control elderly healthspan. Similar to dietary restriction, mice overexpressing the NAD+ dependent protein deacylase SIRT6 (MOSES) live longer and have reduced IGF-1 levels. However, it is as yet unknown whether SIRT6 also affects various healthspan parameters. Here, a range of age related phenotypes was evaluated in MOSES mice. In comparison to their wild-type (WT) littermates, old MOSES mice showed amelioration of a variety of age-related disorders, including: improved glucose tolerance, younger hormonal profile, reduced age-related adipose inflammation and increased physical activity. The increased activity was accompanied with increased muscle AMP-activated protein kinase (AMPK) activity. Altogether, these results indicate that overexpression of SIRT6 in mice retards important aspects of the aging process and suggest SIRT6 to be a potential therapeutic target for the treatment of a set of age-related disorders.
机译:上个世纪人类寿命的延长导致与年龄有关的疾病的发病率显著增加。因此,确定控制老年人健康的关键因素至关重要。与饮食限制类似,过度表达NAD+依赖性蛋白脱酰酶SIRT6(MOSES)的小鼠寿命更长,IGF-1水平降低。然而,目前尚不清楚SIRT6是否也会影响各种healthspan参数。在这里,对摩西小鼠的一系列年龄相关表型进行了评估。与野生型(WT)同窝小鼠相比,老年摩西小鼠表现出多种与年龄相关的疾病的改善,包括:葡萄糖耐量改善、激素水平降低、与年龄相关的脂肪炎症减少和体力活动增加。活性的增加伴随着肌肉AMP活化蛋白激酶(AMPK)活性的增加。总之,这些结果表明SIRT6在小鼠中的过度表达延缓了衰老过程的重要方面,并表明SIRT6是治疗一系列年龄相关疾病的潜在治疗靶点。

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