Effects of calorie restriction on life span of microorganisms
نویسندگان
چکیده
منابع مشابه
Calorie Restriction Extends Life Span— But Which Calories?
E vidence that calorie restriction (CR) retards aging and extends median and maximal life span was fi rst described in the 1930s by McCay et al. [1]. Since then, similar observations have been made in a variety of species including rodents, fi sh, fruit fl ies, worms, and yeast [2]—and although they are not yet defi nitive, results from ongoing longevity studies in monkeys suggest that CR will ...
متن کاملSir2-Independent Life Span Extension by Calorie Restriction in Yeast
Calorie restriction slows aging and increases life span in many organisms. In yeast, a mechanistic explanation has been proposed whereby calorie restriction slows aging by activating Sir2. Here we report the identification of a Sir2-independent pathway responsible for a majority of the longevity benefit associated with calorie restriction. Deletion of FOB1 and overexpression of SIR2 have been p...
متن کاملThe Implications of Calorie Restriction on Longevity and Health Span
Calorie Restriction (CR) is a defined intervention tool currently being studied as an effort to achieve numerous health benefits and increase longevity. Currently, there is a large body of research that indicates a multitude of health benefits and positive associations; however, there is also a plethora of opposing research. Through investigation of epigenetics, the efficacy of calorie restrict...
متن کاملComment on "HST2 mediates SIR2-independent life-span extension by calorie restriction".
Calorie restriction (CR) increases life span in yeast independently of Sir2. Lamming et al. (Reports, 16 September 2005, p. 1861) recently proposed that Sir2-independent life-span extension by CR is mediated by the Sir2 paralogs Hst1 and Hst2. Contradictory to this, we find that CR greatly increases life span in cells lacking Sir2, Hst1, and Hst2, which suggests that CR is not mediated by Sir2,...
متن کامل“the effect of risk aversion on the demand for life insurance: the case of iranian life insurance market”
abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...
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ژورنال
عنوان ژورنال: Applied Microbiology and Biotechnology
سال: 2010
ISSN: 0175-7598,1432-0614
DOI: 10.1007/s00253-010-2824-8