parkinson disease
Parkinson disease Parkinson disease, which is 2007 affected 25000 people in Quebec, is an example of basal ganglia disorder that occurs most often in people in their 50s and 60s. It is caused by a degeneration of the neurons of the substance stantia nigra ( gray matter of the cerebral peduncle) that release dopamine . As these neurons deteriorate, the basal nuclei they normally supply with dopamine become hyperactive. Hence the well-known symptoms of the disease. people with resting tremor ( which means shaking of the head and crumbling movements of the fingers). Walk inclined to the front and step dragging, have the expression of the face frozen and experiencing difficulty begin movements or to put their muscles running bradykinesia. The cause of Parkinson disease is still unknown. Levodopa( L-DOPA), which is converted into dopamine in the body, is a drug that relieves some of the symptoms, but it does not cure the disease and loses ...