Mouse dorsal horn spinal cord (IMAGE) Heidelberg University Caption Section of mouse dorsal horn spinal cord. Blue marks cell nuclei, red the neurons. Green highlights the acetylation level of histone 3, used to measure the activity of HDAC4. Credit Daniela Mauceri Usage Restrictions This image may be used only in connection with the contents of this press release, and the source of the image must also be cited. License Original content 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.