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Energy restriction and potential energy restriction mimetics

  • Sibylle Nikolai (a1), Kathrin Pallauf (a1), Patricia Huebbe (a1) and Gerald Rimbach (a1)
Abstract
Abstract

Energy restriction (ER; also known as caloric restriction) is the only nutritional intervention that has repeatedly been shown to increase lifespan in model organisms and may delay ageing in humans. In the present review we discuss current scientific literature on ER and its molecular, metabolic and hormonal effects. Moreover, criteria for the classification of substances that might induce positive ER-like changes without having to reduce energy intake are summarised. Additionally, the putative ER mimetics (ERM) 2-deoxy-d-glucose, metformin, rapamycin, resveratrol, spermidine and lipoic acid and their suggested molecular targets are discussed. While there are reports on these ERM candidates that describe lifespan extension in model organisms, data on longevity-inducing effects in higher organisms such as mice remain controversial or are missing. Furthermore, some of these candidates produce detrimental side effects such as immunosuppression or lactic acidosis, or have not been tested for safety in long-term studies. Up to now, there are no known ERM that could be recommended without limitations for use in humans.

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*Corresponding author: Sibylle Nikolai, fax +49 431 880 2628, email nikolai@foodsci.uni-kiel.de
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Nutrition Research Reviews
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