Lab-grown dopamine neurons derived from stem cells have survived and connected within the brains of Parkinson's patients for as long as 14 years.
The successful long-term transplantation of dopamine neurons in the live brain may lead to new and improved therapies for Parkinson's disease as well as other neurodegenerative conditions, according to Ole Isacson, a Harvard neurologist and director of the Neuroregeneration Research Institute.