Zombie Cells In Our Body That Increase As We Age

The researchers, who called the cells that lost the ability to reproduce but continue to live as zombie cells, revealed that the number of these cells increased as time passed.

in our cells our DNA It makes it possible to form new cells by replicating themselves. Thus, our wounds heal quickly, we grow, our structure improves. As our cells are destined to lose these abilities over time, we age and die.

on both ends of our DNA telomeres Protein sheaths called These telomeres shorten each time our cells divide, and after a point they lose their ability to protect DNA. After a point, DNA stops copying because it cannot protect itself. This is called cellular senescence. Even though the cells at this stage are no longer alive, they have no functions. zombie cell they are called.

Aging isn’t the only reason for zombie cells

Telomere structures as we age getting weaker and shorter. That’s why the replication of our DNA strands stops at one point. In their research, scientists examined whether there was another factor that could increase the number of zombie cells. In studies, it was revealed that cells with telomeres exposed to a different protein structure and damaged turn into zombie cells.

Accordingly, in addition to the harmful wastes that occur in our normal vital functions, factors such as air pollution and tobacco smoke also occur in our bodies. oxidative stress causes a condition called Therefore, the process of telomere shortening accelerates. Because cellular senescence it happens much sooner.

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With the research, it has been revealed that telomeres are not only alarms that indicate that cells are dividing too much, but can also provide information about oxidative stress. The new studies will aim to clean or somehow reactivate the zombie cells. Thus, to live old age in a healthier way or counteract the effects of aging it will be possible.

Source :
https://www.sciencealert.com/zombie-cells-are-still-alive-but-can-t-function-and-they-accumulate-with-age


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