(A) Movat pentachrome staining of aortic root (upper panel-4x magnification) and brachiocephalic artery fibrous caps (lower panel-10x magnification) at 14 week harvest, caps denoted with arrowheads and black bars (roots only). (B) Quantification of aortic root (left panel, *p=0.005, #p<0.001) and brachiocephalic artery (right panel*p=0.011, #p<0.024) fibrous caps, graphed as percent of total plaque area. 