DENND2A and Parkinson disease: In PD brains, we found significantly altered expression levels of GPX7 (p = 8.81E-03); LBH (p = 7.05E-03); ZCCHC10 (p = 7.01E-03); and DENND2A (p = 9.77E-03) in GEO dataset GSE20295 (Table 4).