I read an article today on the UVA website (UVA Today). "Researchers found that when they chemically disrupt specific mechanisms of neural activity in the central nervous system, they can, in effect open a border wall to allow a critical nerve-repairing cell to migrate into the peripheral nervous system- a region those cells generally don't enter. The cells, a subset of non-neuronal cells called oligodendrocytes ……- they make repairs to damaged neuronal cells. The article was written by Fariss Samara. The research was led by Sarah Kucenas. It said the study would be published April 2 in the journal Cell Reports (I could not find that). If interested check out the UVA website. Repair to damaged peripheral nerves would be amazing for all kinds of diseases and sufferers!