Scientists transplant neural stem cells from a monkey's skin into its brain

This monkey brain neuron, which originated from a skin stem cell, makes dopamine, a neurotransmitter involved in normal movement University of Wisconsin-Madison scientists have transplanted neural cells derived from stem cells from a monkey's skin into its brain and watched the cells develop into several types of mature brain cells.

http://www.kurzweilai.net/scientists-transplant-neural-stem-cells-from-a-monkeys-skin-into-its-brain