Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Sci. STKE, 20 July 2004
Vol. 2004, Issue 242, p. tw265
[DOI: 10.1126/stke.2422004TW265]

EDITORS' CHOICE

Aging Eat Less, Live Longer

Health problems in the elderly are thought to result from the cumulative effects of cell loss over time. Caloric restriction and genetic manipulations that extend life-span typically reduce stress-induced apoptotic cell death. In yeast, caloric restriction increases life-span by activating the Sir2 deacetylase. Cohen et al. now find that mammalian Sir2 (SIRT1), a regulator of cell defenses, is induced in calorically restricted rats and in human cells treated with serum from these animals. One way in which caloric restriction extends mammalian life-span may be by increasing SIRT1 expression and thus the survival of key cells.

H. Y. Cohen, C. Miller, K. J. Bitterman, N. R. Wall, B. Hekking, B. Kessler, K. T. Howitz, M. Gorospe, R. de Cabo, D. A. Sinclair, Calorie restriction promotes mammalian cell survival by inducing the SIRT1 deacetylase. Science 305, 390-392 (2004) [Abstract][Full Text]

Citation: Eat Less, Live Longer. Sci. STKE 2004, tw265 (2004).

To Advertise     Find Products

Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882