just under two decades later, when ucsf's roger peterson and university of wisconsin's jane townsend exploring every adding some so research, the political climate had changed, but this did not stop their work. 10 years ago this month, ucsf scientists develop two of the first embryonic stem cell lines in a modest lab. to look up now and see entire building dedicated to stem cell research created with state and private funds is truly gratifying. it is also gratifying to have our program led by arnold krickstein. as a neurologist, he has spent much of his career treating patients with devastating disease from childhood development of disorders like several palsy, to parkinson's, stroke, alzheimer's disease, lou gehrig's disease, and brain cancer. he is also a world-renown brain stem cell scientist exploring with a number of colleagues a novel approach for using stem cells to treat epilepsy, parkinson's, and some of the consequences of brain and spinal cord injury. in his role as director of the center, he has built one of the strongest programs in the nation, recruiting some of the pre