Scientists have rejuvenated some. How this process works in humans

Scientists have rejuvenated some. How this process works in humans

3 June 2021 0 By admin

A team of scientists has restored sight to the elderly by effectively reversing the aging process at the molecular level.

Researchers at Harvard Medical School have removed thousands of chemical markers, which accumulate over time, from the DNA of mice. Thus, they reset the cells to a younger shape.

Shortly afterwards, some who lost their sight due to age or retinal nerve damage regained their ability to see, Nature reports.

Although there is still no indication that the same technique will work on humans, it is a striking indication that genetic modification can reverse the aging process, at least for some of the consequences of aging. natural biological aging.

Cellular mechanics give these cells the ability to return to a younger state. The study, recently published in the journal Nature, appears to show that it is possible to “reverse” aging in at least some areas.

Specifically, the team exploited and reversed specific epigenetic changes – changes in mouse gene expression rather than the genes themselves. “We started with a question: if epigenetic changes are the factor of aging, can we reset the epigenome?” Harvard Medical School co-author and geneticist David Sinclair told Nature. â € œCan you turn the clock back? â €.

The most shocking thing is that some people who have lost their sight due to nerve damage have managed to produce new nerves after treatment. “It was like a jellyfish growing in place of the lesion,” study co-author Yuancheng Lu told Nature. “It was amazing.”

Also, the film “The Curious Case of Benjamin Button” has recently become a reality. Israeli scientists have shown that they can return the clock to the two key areas of the body that are thought to be responsible for the fragility and health that comes with aging. .

Thus, scientists at Tel Aviv University showed that providing pure oxygen to the elderly while in a hyperbaric chamber increased the length of telomeres by 20%. , In a premiere of medicine.