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. 2023 Dec 30;52(12):afad228. doi: 10.1093/ageing/afad228

Figure 5.

Figure 5

Amyloid-beta (Aβ) 42/40 ratios related to memory at the 1-week follow-up. (A) Intervention group. Left plot: baseline Aβ42/Aβ40 ratios (x-axis), an index for pre-intervention Aβ-burden, did not predict memory gains (y-axis). Right plot: Beneficial changes in Aβ42/Aβ40 ratios across the intervention period (x-axis) predicted memory gains (y-axis), indicating PLAS-induced physiological responses and their potential down-stream effect on beneficial Aβ clearance and memory. (B) Control group. Neither baseline Aβ42/Aβ40 ratios (left plot), nor across-intervention changes in Aβ42/Aβ40 ratios (right plot) predicted memory gains. Note: post int = post-intervention, *P < 0.05, n.s. P > 0.1.