The list included genes involved in the development of monogenic forms of PD (ATP13A2, PARK2, PARK7, PINK1, LRRK2, and SNCA) and genes that exhibited a change in expression that may be associated with the pathogenesis of PD (ALDH1A1, PDHB, PPARGC1A, and ZNF746). Here, PPARGC1A is linked to Parkinson disease.