Brain damage caused by blocked blood vessels may be treatable using injections of stem cells , according to a new study by researchers from the University of Zurich and the University of Southern California.

The results could one day help patients who have experienced some forms of stroke recover lost functions.

Using mice with stroke-induced brain damage, the researchers found that injections of human stem cells could successfully develop into immature brain cells. The results were dramatic: most of the implanted cells remained in place, developing features of fully functioning neurons and communicating with surrounding cells.

"We found that the stem cells survived for the full analysis period of five weeks and that most of them transformed into neurons, which actually even co

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