Fig. 1
From: Prospective longitudinal course of cognition in older subjects with mild parkinsonian signs
Levels of plasma Aβ1–38, Aβ1–40 and Aβ1–42 in individuals with mild parkinsonian signs (MPS) and controls. a Aβ1–38, b Aβ1–40, c Aβ1–42 and d ratio Aβ1–42/Aβ1–40. Individuals with persistent MPS had significantly lower Aβ1–42 values than controls at all three time points. In addition, Aβ1–42 values and the ratio Aβ1–42/Aβ1–40 of persistent MPS participants decreased over time, whereas the control group remained stable. No significant differences between controls and individuals with persistent MPS were found for Aβ1–38 and Aβ1–40 values either cross-sectionally or longitudinally. Aβ amyloid-beta, BL baseline, 1FU first follow-up, 2FU second follow-up