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Related Concept Videos

Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
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Related Experiment Video

Updated: Apr 13, 2026

Techniques to Induce and Quantify Cellular Senescence
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Why is aging conserved and what can we do about it?

Jason N Pitt1, Matt Kaeberlein1

  • 1Department of Pathology, University of Washington, Seattle, Washington, United States of America.

Plos Biology
|April 30, 2015
PubMed
Summary
This summary is machine-generated.

Scientists have identified conserved genetic and environmental factors that slow aging across species. Interventions are nearing clinical use, promising benefits soon, even before all aging mechanisms are fully understood.

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Area of Science:

  • Gerontology
  • Molecular Biology
  • Genetics

Background:

  • Aging research has advanced significantly in recent decades.
  • Conserved genetic pathways influencing aging rate have been discovered.
  • Physiological and environmental factors affecting aging have been identified in diverse organisms.

Purpose of the Study:

  • To review conserved pathways and interventions that modulate aging.
  • To highlight key challenges and future directions in aging research.

Main Methods:

  • Review of existing literature on aging research.
  • Analysis of conserved genetic modulators of aging.
  • Examination of physiological and environmental interventions impacting aging rate.

Main Results:

  • Identification of evolutionarily conserved genetic factors influencing aging.
  • Demonstration that various interventions can modify aging rates in model organisms.
  • Progress towards understanding molecular mechanisms of aging.

Conclusions:

  • Aging interventions are approaching clinical applicability.
  • Benefits from aging research are anticipated in the near future.
  • Further research is needed to fully elucidate the complex biology of aging.