Surprise! Your liver is just 3 years old, whether you're 20 or 84

that spiked in the atmosphere following mid-20th century nuclear testing - and found that liver renewal is unaffected as we grow old. The results showed that the 'adjustment of liver mass to the needs of the body is tightly regulated through the constant replacement of liver cells'. This particular liver cell replacement is essential for other aspects of liver regeneration and cancer formation. However, not all liver cells are the same in terms of renewal.

When the researchers compared typical liver cells with the cells richer in DNA, fundamental differences were found in their renewal."Typical cells renew approximately once a year, while the cells richer in DNA can reside in the liver for up to a decade," said Bergmann."As this fraction gradually increases with age, this could be a protective mechanism that safeguards us from accumulating harmful mutations.

Previously, the team had used their expertise in retrospective radiocarbon birth dating to show that the formation of new brain and heart cells continues throughout life. muscle cells and if they can be generated in people with chronic heart disease. “Our research shows that studying cell renewal directly in humans is technically very challenging but it can provide unparalleled insights into the underlying cellular and molecular mechanisms of human organ regeneration,” added Bergmann.

These findings are imperative - the more we're aware of the organs in our body, the better we can get at finding out how to keep them away from disease.Stay ahead with the latest science, technology and innovation news, for free:

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