SAA increased aortic biglycan content, which co-localizes with SAA and apoB. Mice were injected with ad-SAA, ad-null, or saline, and 28 days later vascular tissues were collected. Shown are representative photos from a mouse that received ad-SAA. In each photo the lumen is shown to the bottom right. Scale bars = 100 μm. Original magnifications, ×200.