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Gene activation extends lifespan of flies by 60%
1. Gene activation extends
lifespan of flies by 60%
The Breakthrough Research Is Likely To Help Develop New Anti-Aging
Treatments For Humans
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2. Scientists have managed to prolong the lifespan of flies by up to 60%
after activating a gene which destroys unhealthy cells, an advance
which may help develop new anti-aging treatments for humans.
Researchers at the University of Bern in Switzerland, led by Eduardo
Moreno, have developed a new method to extend lifespan of flies.
“Our bodies are composed of several trillion cells and during aging
those cells accumulate random errors due to stress or external insults,
like UV-light from the sun,” said Moreno.
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3. “Because some cells are more affected than others, we reasoned that
selecting the less affected cells and eliminating the damaged ones
could be a good strategy to maintain tissue health and delay in aging
and prolong lifespan,” Moreno said.
To test their hypothesis, the researchers used Drosophila melanogaster
flies. The first challenge was to find out which cells within the organs of
Drosophila were healthier. More no’s team identified a gene which was
activated in less healthy cells.
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4. Contd..
They called the gene ahuizotl (azot) because the function of the gene
was also to selectively target less healthy or less fit cells to protect the
integrity and health of the organs like the brain or the gut. Normally,
there are two copies of this gene in each cell. By inserting a third copy,
the researchers were able to select better cells more efficiently.
The consequences of this improved cell quality control mechanism
were, according to Moreno, “very exciting”.
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5. The flies appeared to maintain tissue health better, aged slower and
had longer lifespans.
“Our flies had median lifespans 50 to 60% longer than normal flies,”
said Christa Rhiner, one of the authors of the study.
Because the gene azot is conserved in humans, this opens the
possibility that selecting the healthier or fitter cells within organs could
in the future be used as an anti-aging mechanism, researchers said.
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