Two single-nucleotide polymorphisms in the GAPDH gene have been associated with the risk of Parkinson disease (PD) in China. Liu and co-workers recuited 302 patients with PD and 377 healthy controls, and performed a targeted screen for two polymorphisms that had previously been associated with late-onset Alzheimer disease. Carriers of the rs3741918 allele had a lower risk of sporadic PD than did noncarriers (OR 0.74), whereas the rs1060619 variant was associated with an increased risk (OR 1.41).