Of course, once again, we are talking about ethical stem cells from bone marrow:
"Scientists have discovered an antibody that can turn stem cells from a patient's bone marrow directly into brain cells, a potential breakthrough in the treatment of neurological diseases and injuries.
Richard Lerner, of the Scripps Research Institute in California, says that when a specific antibody is injected into stem cells from bone marrow—which normally turn into white blood cells—the cells can be triggered to turn into brain cells.
"There's been a lot of research activity where people would like to repair brain and spinal cord injuries," Lerner says. "With this method, you can go to a person's own stem cells and turn them into brain cells that can repair nerve injuries."
Read the whole article from US News