The SPID-GBA study
Letizia Straniero, Rosanna Asselta, Salvatore Bonvegna, Valeria Rimoldi, Giada Melistaccio, Giulia Soldà, Massimo Aureli, Matteo Giovanni Della Porta, Ugo Lucca, Alessio Di Fonzo, Anna Zecchinelli, Gianni Pezzoli, Roberto Cilia, Stefano Duga
Abstract
OBJECTIVE: variants, we analyzed a large cohort of 4,923 Italian unrelated patients with primary degenerative parkinsonism (including 3,832 PD) enrolled in a single tertiary care center and 7,757 ethnically matched controls. METHODS: The p.E326K, p.T369M, p.N370S, and p.L444P variants were screened using an allele-specific multiplexed PCR approach. All statistical procedures were performed using R or Plink v1.07. RESULTS: ), which, on the basis of the impact on glucocerebrosidase activity, would be expected to be mild. The 1.5-2:1 male sex bias described in sporadic PD was lost in p.T369M carriers. We also showed that PD penetrance for p.L444P could reach the 15% at age 75 years. CONCLUSIONS: .