A new HHS study suggests that some cells from bone marrow can enter the human brain and generate new neurons and other types of brain cells. If researchers can find a way to control these cells and direct them to damaged areas of the brain, this finding may lead to new treatments for stroke, Parkinson's disease, and other neurological disorders.
Earlier scientific work has shown that bone marrow cells can enter the mouse brain and produce new neurons. However, the new study is the first to show that this phenomenon can occur in the human brain. The study appears in the January 20, 2003, online early edition of the Proceedings of the National Academy of Sciences.
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