Fig. 4.

Representative hippocampal images of SAMP8 and SAMP8 Rsv animals (a), arrowheads (Aβ₄₀ and Aβ₄₂) indicate some clusters of amyloid granules in both groups. Quantification of the amount of Aβ₄₂ (b) and Aβ₄₀ (c) clusters in the hippocampus of the two groups. Bars represent mean±SEM; values in d–g are adjusted to 100 % for levels of SAMP8 control mice. Student’s paired t test; *P < 0.05 vs. SAMP8. Cortex (Cx), hippocampus (Hp)