Why do animals recover faster at
younger ages—compared to older and mature animals? This phenomenon has boggled
the minds of genetic scientists for decades; however, recent studies from
Harvard Medical School and Boston’s Children Hospital have shown a possible
connection to this phenomenon. Scientists have discovered that the gene Lin28a—which
are activated during embryonic stages, but is staggered as the animal matures.
To test these effects, the research teams shaved fur from their mice and
activated these genes in one, while leaving the latter as the control. The
results showed that their mice, with the activation of Lin28a, fur grew back
significantly faster than the other. The scientists concluded that the gene
Lin28a activates production of metabolic enzymes—which in turn increases
regeneration rate, and efficiency. This breakthrough in genetics could lead to
many medical possibilities. For example, patients could use this enhancement
after surgery to increase healing. Also, this gene could also have the keys to
understanding genetic aging in cells.
This new discovery of the gene Lin28a, allows for many advance in genetics. Imagine the regrowth of loss hair, tissues, and maybe even muscles. I think this gene could revolutionized the world in terms of healing and regeneration.
http://www.independent.co.uk/news/science/fountain-of-youth-scientists-discover-why-wounds-heal-quicker-for-young-people-8927387.html
http://www.nature.com/news/fountain-of-youth-gene-unleashes-healing-power-1.14128
http://www.independent.co.uk/news/science/fountain-of-youth-scientists-discover-why-wounds-heal-quicker-for-young-people-8927387.html
http://www.nature.com/news/fountain-of-youth-gene-unleashes-healing-power-1.14128
I wonder why a gene that is active during embryonic development is no longer active during maturity. What is it that causes this gene to be silenced? And at which point is it that this gene is no longer viable? After birth? Or once one reached sexual maturity? I agree that the activation of this gene will revolutionize the medical field. Not only will it be an asset to treat elderly patients, but I wonder what can be done to athletic injuries.
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