Researchers find a switch to restore damaged axons in the brain.

In Brain Circuitry, Brain Science by Brainy Days Ahead

Axons are long fibers on neurons that transmit nerve impulses. The brain’s efforts to restore damaged or destroyed axons is slow and often insufficient. But invite Schwann cells to the party as these researchers do, and the Schwann cells begin to reprogram themselves to help. This is a phenomenon previously expected only from stem cells.