Brain Multiple Sclerosis (image) Max-Planck-Gesellschaft Caption The illustration shows a section of mouse spinal cord under a fluorescence microscope. DMF works on the immune cells (red), which are responsible for damaging the nerve fibres. Cell nuclei appear as blue. Credit MPI for Heart and Lung Research Usage Restrictions None 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.