AUTOPSIES on four women have proved that stem cells from bone marrow don't just turn into blood and bone - they can become brain cells too. The discovery could lead to new treatments for brain damage and degenerative diseases such as Alzheimer's.
All four women had received bone marrow transplants from men. Eva Mezey's team at the US National Institute of Neurological Diseases and Stroke found that some of the cells in their brains carried the male Y chromosome, so could only have come from the marrow (
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