BST1 and Parkinson disease: Accumulating research strongly suggests that both the dominant model (AA + AG vs. GG) and allelic model (A vs. G) of BST1 rs4698412 demonstrate a significant association with an elevated risk of PD in the Asian population (Chang et al., 2011; Li et al., 2019; Shen et al., 2019; Wang et al., 2015).