“University of California, Berkeley, biologists have found a signal that keeps stem cells alive in the adult brain, providing a focus for scientists looking for ways to re-grow or re-seed stem cells in the brain to allow injured areas to repair themselves.

The researchers discovered in fruit flies that keeping the insulin receptor revved up in the brain prevents the die-off of neural stem cells that occurs when most regions of the brain mature into their adult forms.”

http://www.medicalnewstoday.com/articles/183701.php

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