Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. NINDS Parkinson's Disease Information Page Questions and answers about Parkinson's disease, which "belongs to a group of conditions called motor system disorders, which are the result of the loss of dopamine-producing brain cells." The condensed fact sheet covers treatment, prognosis, research, and organizations. More detailed information is provided in an expanded fact sheet and features on exploratory trials and biomarkers of risk in Parkinson's Disease. From the National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health (NIH). http://www.ninds.nih.gov/disorders/parkinsons_disease/parkinsons_disease.htm Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *