I have wondered if and how is dopamine stored in the brain. The answer seems to be yes as explained in following article.
This also answers the question why in early/intermediate stage, PDers like myself get up in the morning symtoms free as the brain seems to have accumulated enough dopamine produced by the remaining live dopamine producing cells in the brain during sleep hours.
http://www.macalester.edu/psychology...y/dopamine.htm

Comments welcome.
Imad