Caloric restriction, aging, and antioxidant enzymes

Ritchie J. Feuers , Richard Weindruch , Ronald W. Hart
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引用次数: 83

Abstract

The basic mechanisms of aging and its retardation by caloric restriction (CR) remain unclear. One suggested means by which CR could retard aging is based on production of mitochondrial free radicals, and efficiency of their subsequent metabolism. Currently, there is little information concerning the influences of age and CR on the rates of in vivo mitochondrial free radical production. However, evidence for CR-induced modulation of free radical detoxification capacities is mounting. The direction of the influence of CR on free radical detoxification is tissue-specific. These effects are broad and appear to provide positive advantage.

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热量限制,衰老和抗氧化酶
热量限制(CR)延缓衰老的基本机制尚不清楚。一种建议的CR延缓衰老的方法是基于线粒体自由基的产生及其随后代谢的效率。目前,关于年龄和CR对体内线粒体自由基产生率的影响的信息很少。然而,cr诱导的自由基解毒能力调节的证据正在增加。CR对自由基解毒的影响方向具有组织特异性。这些影响是广泛的,似乎提供了积极的优势。
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