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PPARs in Calorie Restricted and Genetically Long-Lived Mice.
Michal M Masternak1, Andrzej Bartke
1Departments of Internal Medicine, Geriatrics Research, School of Medicine, Southern Illinois University, Springfield, IL 62794, USA.
PPAR Research
|March 29, 2007
Summary
Peroxisome proliferator-activated receptors (PPARs) regulate aging and metabolism. Calorie restriction (CR) impacts these functions and may prevent age-related PPAR changes, suggesting a link between PPARs, CR, and longevity.
Area of Science:
- Molecular Biology
- Gerontology
- Metabolic Research
Background:
- Peroxisome proliferator-activated receptors (PPARs) are nuclear receptors regulating metabolism, immunity, and aging.
- Three subtypes (PPARα, PPARγ, PPARβ/δ) are expressed across various organs.
- Calorie restriction (CR) is a potent intervention for delaying aging and extending lifespan.
Purpose of the Study:
- To review the effects of aging and CR on PPAR expression in mice.
- To explore the role of PPARs in mediating the effects of longevity genes.
- To investigate the interconnectedness of PPARs, CR, and aging.
Main Methods:
- Literature review of recent findings on PPAR expression.
- Analysis of studies involving aging and calorie restriction in mice.
- Examination of the relationship between PPARs and longevity genes.
Main Results:
- PPAR levels naturally change with advancing age.
- Calorie restriction appears to counteract age-related alterations in PPAR expression.
- Evidence suggests PPARs are involved in the physiological responses to CR and aging.
Conclusions:
- PPARs are significantly influenced by aging and calorie restriction.
- The "PPARs-CR-AGING" axis is a promising area for understanding longevity.
- Targeting PPARs may offer therapeutic strategies for age-related diseases.
