What Dr.Oz was showing is the part of the brain that a F-Dopa scan watches to see how much radioactive isotope attached to dopamine is used by the dark ring of cells. Pathology reports also are used to determine if Parkinson's disease was part of a cadaver's physical makeup. If only a part of the brown cells are lightening, a diagnosis of PD is still made.

The question still needs to be answered, "What caused the death of the dopamine producing neurons?" There could be hundreds of reasons for the death of these cells. How the neurons are killed is what causes the different symptoms for each person. Does this make any sence? That is how I understand it anyway.

Vicky