Although the specific molecular mechanism leading to dopaminergic (DAergic) neuronal death in Parkinson’s disease (PD) is not yet fully understood [7,8], studies have demonstrated that LRRK2 is associated with increased susceptibility to oxidative stress (OS), mitochondrial depolarization, and cell death [9,10,11,12,13,14]. The gene discussed is LRRK2; the disease is Parkinson disease.