Stem cells act through multiple mechanisms to benefit mice with neurodegenerative metabolic disease. by Lee, J, Jeyakumar, M, Gonzalez, R, Takahashi, H, Lee, P, Baek, R, Clark, D, Rose, H, Fu, G, Clarke, J, McKercher, S, Meerloo, J, Muller, F, Park, K, Butters, T, Dwek, R, Schwartz, P, Tong, G, Wenger, D, Lipton, SA, Seyfried, T, Platt, F, Snyder, E