Beyond the rodent model: Calorie restriction in rhesus monkeys

Area of Science:

• Gerontology
• Nutritional Science
• Primate Aging Research

Background:

• Calorie restriction (CR) consistently extends lifespan and reduces disease in short-lived species like rodents.
• The effects of CR on aging in longer-lived species, particularly primates, remained largely unknown until recent studies.

Purpose of the Study:

• To investigate the effects of calorie restriction (CR) on aging processes and age-related diseases in nonhuman primates (rhesus monkeys).
• To determine if CR-induced physiological changes in primates mirror those observed in rodents, suggesting conserved anti-aging mechanisms.

Main Methods:

• Longitudinal studies involving calorie restriction (CR) in rhesus monkeys.
• Monitoring physiological responses and evaluating potential biomarkers of aging.
• Assessing the incidence of age-related diseases such as diabetes and cardiovascular disease.

Main Results:

• Rhesus monkeys on CR exhibit physiological responses similar to those seen in CR-fed rodents.
• Preliminary data suggest CR may slow the rate of aging in primates.
• CR may reduce the incidence of age-related diseases, including diabetes and cardiovascular disease, in rhesus monkeys.

Conclusions:

• Calorie restriction (CR) demonstrates potential anti-aging effects in nonhuman primates, paralleling findings in rodents.
• These primate studies strengthen the possibility that CR could offer benefits for longevity and healthspan in humans.
• Further long-term research is necessary to confirm lifespan extension and definitive anti-aging effects of CR in primates.