there is some evidence that about 10% of PWP may have a genetic form of PD and the researchers are looking at that very seriously. also don't know if families with pd may have been exposed to similar environmental factors. rest assured, it is a front burner issue for many researchers right now. maxine ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn