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Related Concept Videos

Metabolic States of the Body: Fasting and Starvation01:24

Metabolic States of the Body: Fasting and Starvation

During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...

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Related Experiment Video

Updated: Jun 10, 2026

A Do-it-yourself System for Scheduled Feeding of Laboratory Rodents in Their Home Cage
04:49

A Do-it-yourself System for Scheduled Feeding of Laboratory Rodents in Their Home Cage

Published on: June 6, 2025

Nonhuman primate calorie restriction.

Ricki J Colman1, Rozalyn M Anderson

  • 1Wisconsin National Primate Research Center, SMPH, University of Wisconsin, Madison, Wisconsin 53715, USA. rcolman@primate.wisc.edu

Antioxidants & Redox Signaling
|August 12, 2010
PubMed
Summary
This summary is machine-generated.

Calorie restriction (CR) is a dietary intervention that extends lifespan. Primate studies, particularly in rhesus monkeys, are crucial for understanding how CR impacts aging and human health.

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Area of Science:

  • Gerontology
  • Nutritional Science
  • Primate Research

Background:

  • Calorie restriction (CR) is the only dietary intervention proven to extend lifespan across species.
  • Mechanisms underlying CR's anti-aging effects remain largely elusive.
  • Primate studies are essential to demonstrate CR's efficacy in delaying aging.

Purpose of the Study:

  • To review insights from CR studies in short-lived species.
  • To highlight the rhesus monkey as a model for human aging research.
  • To detail the implementation and ongoing effects of CR in rhesus monkeys.

Main Methods:

  • Review of existing literature on CR and aging.
  • Description of CR implementation in rhesus monkeys.
  • Presentation of findings from a longitudinal CR study in rhesus monkeys.

Main Results:

  • CR has demonstrated lifespan extension in various species.
  • Rhesus monkeys offer a valuable model for studying primate aging.
  • Ongoing CR study in rhesus monkeys provides insights into health effects.

Conclusions:

  • Primate studies are vital for understanding human aging.
  • CR's potential to advance human health and longevity requires further investigation in primates.
  • Rhesus monkey models are key to elucidating CR's anti-aging mechanisms.