The NIH is sponsoring a test study of an adult stem cell treatment for recent stroke victims: victims who are too late for current methods but still within the first 72 hours of a stroke. It involves injecting them (article doesn’t seem to say where) with their own bone marrow.
They’ve injected one patient so far, a 61 year old farmer. He has shown progress so far, but it is hard to say at this point whether it is specificaly due to the stem cell therapy. Nine other patients will be included in the preliminary study.