Researchers at the University of California, San Diego, grafted neural progenitor cells from fetal rats into lesions in the adult rat spinal cords either two weeks or six months after injury. In both groups, the results looked nearly identical: the lesions filled up with new neurons, and those neurons projected axons to the brain stem and to distant regions of the spinal cord. “Even if you graft six months after injury, you can get many neurons in the lesion site and those neurons can connect to the host neurons,” said Dr Ken Kadoya.
Neurons regenerate in rat spinal cord – scar tissue disappears
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