Without dopamine, the nerve cells in that part of the brain cannot ... to reach the brain through oral intake of the drug through intestinal absorption, and via surgical electrodes stimulation ...

More information: Jaakko Mattila et al, Stem cell mTOR signaling directs region-specific cell fate decisions during ...

For example, Ron McKay and coworkers at the National Institute of Neurological Disorders and Stroke, demonstrated that they can direct murine ESCs to differentiate into a particular type of ...