There is a LOT of published scientific discourse about possible environ- mental cause of PD, and very few clues (one is well water and a rural setting). I suggest you try a search in a local medical library if you can. As for PSP, there is not much about etiology. It seems to be a variant of PD in which additional areas of the brain degenerate, levo- dopa treatment is less effective, and general decline is faster. Cheers, Joe J. R. Bruman (818) 789-3694 3527 Cody Road Sherman Oaks CA 91403 On Sun, 5 May 1996 [log in to unmask] wrote: > One cause of PD that has been questioned is the exposure to chemicals or > pestisides. > I am interested in an informal survey of prior occupation(s) of PD patients. > > My mother has PSP (progressive supranuclear palsy) which is a PD-plus and her > friend has PD. Both were beauticians (yes, some exposure to chemicals and > fumes). Her cousin has three family members with PD who all were farmers > (exposure to pestisides). > > I would welcome ALL responses, explanations, suggestions regarding the issue > of PD and occupation. > > Thank you > > Catherina May > Jackson, Michigan >