これはそうなんじゃないかなと予想していた、尿酸

 ⇒Medical News: Gout May Protect Against Risk of Parkinson's Disease - in Rheumatology, Arthritis from MedPage Today

VANCOUVER, British Columbia, Nov. 7 -- Patients with gout were less likely to develop Parkinson's disease, a cohort study found, supporting the purported protective role of uric acid.

The risk of Parkinson's disease was 30% lower among patients with a history of gout, independent of age, sex, prior medical conditions, and the use of diuretics, Hyon Choi, M.D., of the University of British Columbia, and colleagues reported online in Arthritis Care & Research.