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Multifactorial processes to slowing the biological clock: Insights from a comparative approach
Jamila R Sanchez1, Sarah L Milton2, Kevin C Corbit3
1Barshop Institute for Aging and Longevity Studies, The University of Texas Health Science Center at San Antonio 15355 Lambda Drive, San Antonio, TX 78245USA.
Experimental Gerontology
|September 8, 2015
Summary
Scientists study aging by engineering systems or examining naturally long-lived species. Studying these animals reveals evolutionary strategies for longevity and attenuated aging, offering insights into aging mechanisms.
Area of Science:
- Gerontology
- Evolutionary Biology
- Comparative Biology
Background:
- Traditional aging research often uses engineered systems like transgenesis.
- An alternative approach examines natural extreme biology in long-lived species.
- Studying these species provides insights into evolutionary adaptations to aging.
Purpose of the Study:
- To evaluate how natural selection enables attenuated aging in long-lived species.
- To explore molecular mechanisms behind extended longevity without age-related decline.
- To highlight the utility of a comparative approach in aging research.
Main Methods:
- Focus on well-studied, naturally long-lived species.
- Analyze species with exceptional endocrine, metabolic, and oxidative stress tolerance.
- Review existing literature on evolutionary adaptations to aging.
Main Results:
- Natural selection has facilitated slower aging processes in certain species.
- Specific physiological systems (endocrine, metabolic, oxidative stress tolerance) are key to longevity.
- Comparative studies reveal advantages and limitations in understanding aging.
Conclusions:
- Naturally long-lived species serve as valuable models for aging research.
- Understanding evolutionary adaptations offers a complementary perspective to traditional methods.
- A comparative approach is crucial for a comprehensive understanding of aging biology.
Keywords:
GH/IGFGlucocorticoidsHypoxiaMetabolismNaked mole-ratOxidative stressSuspended animationTurtlesMore Related Videos
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