Thanks Ervin for this different approach to PD . Even if chelation only cures Wilson's disease it is still very importatant to consider . Why does Wilson's disease produce similar symtoms to other causes of PD ? I do not believe that they are coincidental . Basicaly in PD I believe we are dealing with a malfunction of the brain . Until we identify the malfunction and understand it , then progress in understanding PD will be difficult . A car engine will run erratically if the fuel air mixture is not exploding properly . This lack of proper explosion can be caused by a variety of causes . ( lack of compression , faulty spark or incorrect mixture ) . These different cases produce similar results because they all affect the explosion . I feel until we can indentify the common link in all causes of PD symptoms then our understanding of PD will be very inadequate . Your summary of PD shows how chelation relates to a lack of dopamine producing cells. I question this explanation because it does nothing to explain the movement dysfunction improvements brought about by palidotomy or DBS . Thank you once again for opening up the discusion on the causes of PD . I have stored your posting for future reference . peace Alastair ( [log in to unmask] )