Israeli scientists say they have managed to successfully reverse the biological ageing process – using only oxygen.
Recent research led by Tel Aviv University’s Prof. Shai Efrati, together with a team from Shamir Medical Center, found that when healthy adults over the age of 64 were placed in a pressurized chamber and given pure oxygen for 90 minutes a day, five days a week for three months, not only was the aging process delayed – it was actually reversed.
Specifically, the study, which is published in the peer-reviewed journal Aging, focused on whether the process could reverse two key indicators of biological aging: the shortening of DNA telomeres and the accumulation of resultant senescent cells.
A telomere is the end of a chromosome. Telomeres are made of repetitive sequences of non-coding DNA that serve as bumpers to protect the chromosome from damage during replication. Every time replication happens, these bumpers take a hit, making them shorter and shorter. Once the telomere reaches a certain length, the cell cannot replicate anymore, which leads to senescent cells: aging, malfunctioning cells that ultimately lead to cognitive or other age-related disabilities, and even diseases, such as cancer.
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