However, using our DNA methylation profile, we checked for SNPs of 290 CpGs encompassing the Parkinson’s disease candidate genes SNCA, PARK2, PARK7, PINK1, and LRRK2. It is well-known that the SNPs nearby or on CpG sites can influence DNA methylation (Vohra et al., 2020). Here, PRKN is linked to Parkinson disease.