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THScientists find stem cells to restore brain damage after stroke.
A stroke can destroy brain cells within minutes, often leaving people with long-term problems in movement, memory, or speech. But scientists may have found a way to help the brain heal itself. In studies on mice, researchers injected human stem cells into areas of the brain damaged by stroke. These stem cells began turning into early-stage brain cells, and many later developed into active neurons that connected with surrounding tissue.
The treatment did more than just grow new neurons. It also reduced inflammation, helped repair blood vessels, and strengthened the blood brain barrier, which protects the brain from toxins. Most importantly, mice that received the therapy regained part of their movement and coordination, showing functional recovery.
Timing was key. The transplanted cells worked best when given after the brain had stabilized. While research is still limited to animals, this breakthrough shows that damaged brain circuits might someday be repaired with stem cell therapy.
Research Paper 📄
PMID: 40957886
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