Age-dependent Alterations in the Numbers of Adult Brain Stem Cells and Astrocytes (image) Cold Spring Harbor Laboratory Share Print E-Mail Caption Over a two year period, scientists in Grigori Enikolopov's group observed a 100-fold decrease in the number of adult brain stem cells (green) and an increase in the number of astrocytes (red). Credit Enikolopov@CSHL Usage Restrictions image may only be used with appropriate caption or credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.