A recent study reveals that axolotls, famous Mexican amphibians, slow down one of the key mechanisms of aging, the epigenetic clock, when they are only four years old.
These animals experience few physical declines and illnesses, and can regenerate limbs, tail, and organs throughout their 21-year lifespan.
Epigenetic Clock and Aging
The epigenetic clock calculates an animal’s age based on how life events, such as stress or diet, activate and deactivate their genes.
Scientists discovered that axolotls can stop epigenetic aging after four years.
Regeneration and Youth
The axolotls’ ability to regenerate lost tissue is related to their ability to halt aging.
The regenerated limbs of the axolotl are considerably younger than the rest of the body, suggesting a form of epigenetic rejuvenation.
Implications for Human Health
The study could offer new possibilities for regenerative medicine, aiding in wound healing and limb regeneration. Understanding how axolotls halt aging could inspire more effective anti-aging treatments for humans.
Future Research
Determining the biological events around the four-year mark when axolotls stop aging is crucial to replicate their regenerative capacity.
Studying how axolotls maintain few senescent cells, or zombie cells, could also provide clues to improve human health and slow down aging.
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