Figure 7

Effect of near-infrared light on Congo red-positive plaque numbers in APP/PS1 mice. (A), (B) Quantification of Congo red-positive plaque counts in the neocortex (A) and hippocampus (B). All error bars indicate standard error of the mean. (C), (D), (E), (F), (G), (H) Representative micrographs showing Congo red staining of plaques in the neocortex (C, E, G) and hippocampus (D, F, H). Arrows indicate plaques. Scale bar = 50 μm; scale in (H) applies to all other micrographs. DG, dentate gyrus of hippocampus; NIr, near-infrared light; SLM, stratum lacunosum moleculare; WT, wildtype.