Nerve cell activity drains stem cell pool in developing brain

Thursday, November 4, 2010 - 21:30 in Biology & Nature

As babies grow, their brain cells develop from a pool of stem cells -- some stem cells continuously divide, replenishing the pool, whereas others morph into mature functioning nerve cells. Now researchers have shown that as the newly formed nerve cells start firing electrical signals, this activity slows down stem cell division, emptying out the stem cell pool in favor of nerve cell formation.

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