Calorie restriction -: the SIR2 connection

被引：646

作者：

Guarente, L ^{[1
]}

Picard, F ^{[1
]}

机构：

[1] MIT, Dept Biol, Cambridge, MA 02139 USA

来源：

CELL | 2005年 / 120卷 / 04期

基金：

加拿大健康研究院; 美国国家卫生研究院;

关键词：

D O I：

10.1016/j.cell.2005.01.029

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A nutritious diet low in calories improves the health and extends the life span of rodents. Recent studies identified a gene, SIR2, which encodes an NAD-dependent deacetylase and may mediate the effects of calorie restriction. In this review, we discuss SIR2 genes and calorie restriction in the lower organisms yeast and Drosophila. We then describe the physiological changes in mammals during calorie restriction and how they may lead to the observed health benefits. We summarize the roles of mammalian Sirt1 in mediating these changes in tissues and endocrine systems and propose that Sirt1 regulates calorie restriction by sensing low calories and triggering physiological changes linked to health and longevity.

引用

页码：473 / 482

页数：10

共 76 条

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