sábado, 15 de febrero de 2014

Do you know there are immortal worms?

Researchers at the University of Nottingham have demonstrated how planarian worms have an apparent limitless ability to regenerate by replacing aged or damaged tissues and cells. In normal cases, when stem cells divide they begin to show sings of ageing and are no longer able to divide effectively.
As a result, they become less capable of replacing specialised cells in the tissues of our bodies, which is why human skin visibly ages. The stem cells of planarian worms, however, are able to avoid this ageing process and keep their cells dividing.
Here you`ve got a video to understand it better
http://www.youtube.com/watch?v=VaZpwjXadbE

PUBLISHED BY: CARMEN

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