We assessed vascular permeability by quantification of the leakage of Evans Blue Dye into the arterial wall. 0.1 mL of 1% Evans Blue Dye (using phosphate-buffered saline) was injected into the tail vein of ApoE−/− mice (n = 3) and sham-operated ApoE−/− mice (n = 3). After 60 minutes, the AAA segment was isolated, dried, and weighted. The amount of Evans Blue dye was determined by measuring the absorbance of Evans Blue at 620 nm and calculation against the standard curve of known pure Evans blue dye concentrations.
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