VDR and Parkinsonism: Agliardi et al. (2021) [189] genotyped ApaI, BsmI, TaqI, FokI and rs1989969 VDR SNPs in a cohort of 406 patients suffering from PD and 800 healthy controls and demonstrated a strong association between the FokI (rs2228570) VDR SNP and parkinsonism.