Figure 2. Reverse correlation between Aβ plaques and vessel density.
(A) Correlation of the total vessel number in the brain cortex with size and number of Aβ40 or Aβ42 plaques. Brain samples from totally 15 AD patients and 12 non-AD individuals were used for correlation. (B) Double immunostaining of the cortex from an AD patient or from healthy control patients with an anti-CD31 (green) and TUNEL staining (red). Arrows indicate the vasculature-associated double positive apoptotic cells. Bar = 200 μm. (C) Quantification of CD31+ vessel-associated apoptotic index (n = 12–15 samples/group). (D) Quantification of the total number of CD31+ vessels in the cortex (n = 12–15 samples/group). * p < 0.05.