From Scientific American:
"Injecting stem cells into the brains of mice that recently suffered a stroke can reduce nerve cell (neuron) damage by up to 60 percent, according to new research....
Study co-author Darwin Prockop, director of the Texas A&M University Health Science Center's Institute for Regenerative Medicine, says that previous studies have shown that mesenchymal stromal cells (bone marrow stem cells) can reverse neurodegeneration in the brain caused by disorders such as Parkinson's disease. But scientists were not quite sure how."This is the first time really that the mechanisms were laid out," Prockop says."
Hat tip to Mr. Don Margolis. Check his site for the lastest in adult (or, as Don refers to them, "repair") stem cells.