Figure 5: After injection, Cy3-labeled Ago299-5p is distributed throughout the brain tissues.

(a) 9-month-old APPswe/PS1dE9 mice were injected with different doses of Cy3-labeled Ago299-5p into the third ventricle (n = 3). Fluorescence of Cy3 was disseminated throughout the hippocampi and surrounding tissues after injection with 0.5 nmol for 24 h. Scale bar = 250 μm. (b) Cy3-labeled Ago299-5p was absorbed into MAP2-positive neurons and GFAP-positive glial cells. Scale bar = 25 μm.