University of Zurich researchers report stem cells repair stroke damage in mice
Researchers at the University of Zurich reported on September 21, 2026, that stem cell transplants regenerated brain tissue and restored movement in mice suffering from strokes.
New neurons form after treatment
The transplanted cells generated new neurons within the damaged areas of the mouse brains. This process helped rebuild the specific brain regions that lost oxygen or suffered bleeding during the stroke events.
Motor function returns to animals
Mice receiving the treatment regained lost motor skills and improved their ability to move normally. The procedure also strengthened blood vessels, reduced inflammation, and repaired the blood-brain barrier surrounding the brain tissue.
Potential for human therapy grows
Scientists suggest this approach could eventually lead to regenerative treatments for neurological damage in humans. Current options cannot rebuild affected brain tissue once cells are lost from a stroke.
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