In a mouse study of amyotrophic lateral sclerosis (ALS, or Lou Gehrig's disease), injected neural stem cells moved to the spinal cord and multiplied, extending life span 20 days and improving muscle function 15%. In the study, which will be presented at the American Academy of Neurology's 65th Annual Meeting in March, the neural stem cells were created from human induced pluripotent stem cells (iPSCs). Press release