ABCA7 mRNA levels decreased by 72% from 2.57 ± 0.7 in non-NDD subjects to 0.73 ± 0.36 in patients with AD (p < 0.05) (Figure 1D); no differences in ABCA7 expression were detected between healthy subjects and patients with PD. The gene discussed is ABCA7; the disease is Parkinson disease.