Microscope Image Showing the Intimate Association between Astrocytes and Neurons in the Mouse Cerebe (image) McGill University Health Centre Share Print E-Mail Caption Bergmann glia (green) are specialized astrocytes that support Purkinje neurons (red) and their circuits. Purkinje neurons release a protein called Sonic Hedgehog to instruct Bergmann glia to take on their characteristic molecular and physiological properties. Loss of Bergmann glia support leads to dysfunction of Purkinje neurons and their circuits. Credit Todd Farmer, McGill University Health Centre Usage Restrictions Credit Todd Farmer, McGill University Health Centre 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.