This procedure was performed by a standard indirect method as described previously [8 (link)]. Primary antibodies and dilutions were as follows: anti-VEGF (1:250; # ab14078, Abcam) and anti-amyloid-β1–42 (1:250; # ab10148, Abcam). After incubation with the respective secondary antibodies conjugated with Alexa Fluor 555 or Alexa Fluor 488 (## ab150170, ab150073, Abcam) diluted 1:250, the tissue slices were coverslipped with the Fluoro-shield mounting medium containing 4′,6-diamidino-2-phenylindole (DAPI; # ab104139, Abcam) and examined under an Axioplan 2 microscope (Zeiss).
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