GBA1 and Parkinson disease: In the samples from GBA1-PD patients with p.L444P mutation in the GBA1 gene, these values were 199.0 ± 29.5 nm and 77.7 ± 11.1 nm, with the concentration ranging from 1.6 × 1013 to 2.4 × 1013 particles/mL, respectively.