Hi MaryEllen I read your note about a common PD chemistry profile. I am a statistician and can manage a database. I would be willing to collect such data and analyze it if it is felt by the members that it would be helpful and if the Physicians on the list think there is any promise in doing this. However, I think it would be very important to also have data from a control group of comparable ages and sex as the PD patients. We would also need other information such as co-morbid illnesses, duration of PD, etc. I think it sounds like a very interesting and challenging idea but we would need lots of feedback from other researchers on the list to initiate it. I know they are there because I can tell from their interests and comments. I look forward to responses from others. Susan Hamburger (caregiver for Stan 60/14) [log in to unmask]