Notably, the result also revealed that allele A was less frequent in PD than in controls (p = 5.81 × 10−6, OR = 0.90, 95% CI: 0.88–0.94, Figure S1), suggesting HSD3B7, in a protective manner, is a potential candidate locus for PD (Ackerman & Gerhard, 2016). Here, HSD3B7 is linked to Parkinson disease.