What are stem cells? And what role to they play in the possible treatment of multiple sclerosis (MS)? Stem cells are cells that have the ability to develop into different kinds of cells. Because of this, researchers believe that stem cells can be used to repair damage in the body. In MS, stem. Adult Stem Cell Success Story- Multiple Sclerosis. Meet Barry Goudy How adult stem cell treatments got one man back into the game of life. Slapping hockey pucks around the ice rink, cracking balls around the golf course and pounding out a hour work week used to be commonplace for Barry Goudy. Then the unthinkable happened: doctors told the . The same stem cells are used to treat multiple diseases. The source of the stem cells is not clearly documented. How the treatment will be done is not clearly documented in a "protocol" that serves as the medical practitioner's operating manual for the procedure.