Astrocytes Converted to Neurons (image) Penn State Share Print E-Mail Caption A simple treatment using four small molecules converts human astrocytes - a common type of cells in the nervous system - into new neurons, which develop complex structures after four months, as pictured. Credit Gong Chen Lab, Penn State Usage Restrictions Credit must be provided alongside image. 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.