According to Daugherty’s classification of AAA28, the abdominal aortic lesions of Prdx2+/+ and Prdx2−/− mice infused with Ang II were classified from 0 (no aneurysm) to 4 (multiple aneurysms with thrombi) using macroscopic images and histological analysis with H&E and Movat pentachrome staining of aortic cross-sections. This evidence concerns the gene AGT and aneurysm.