Caloric restriction mimetic

Hypothetical anti-aging dietary supplement or drug candidate

Calorie restriction mimetics (CRM), also known as energy restriction mimetics, are a hypothetical class of dietary supplements or drug candidates that would, in principle, mimic the substantial anti-aging effects that calorie restriction (CR) has on many laboratory animals and humans. CR is defined as a reduction in calorie intake of 20% to 50% without incurring malnutrition or a reduction in essential nutrients. An effective CRM would alter the key metabolic pathways involved in the effects of CR itself, leading to preserved youthful health and longer lifespan without the need to reduce food intake. The term was coined by Lane, Ingram, Roth of the National Institute on Aging in a seminal 1998 paper in the Journal of Anti-Aging Medicine, the forerunner of Rejuvenation Research. A number of genes and pathways have been shown to be involved with the actions of CR in model organisms and these represent attractive targets for drug discovery and for developing CRM. However, no effective CRM have been identified to date.

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