Stem Cells Patch Holes in Brain without Prompting

Scientific American on new research that could speed recovery from stroke or blunt-force trauma to the head.  UC-San Francisco says mice genetically engineered to have holes in a region of their brain recovered due to the work of stem cells in the area.

The mechanism behind the rebuilding of these cells in their mouse models may one day be applied to treat neurological damage due to stroke or trauma in the human brain. The next step is to determine how these stem cells sense damage and then begin to work on the injured tissue.

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