MMP2 and Aortic root aneurysm: ELISA results revealed, that serum MMP-2 levels were higher in control subjects (mean 240.3 +/- 46.4) than in patients with ascending aortic and aortic root aneurysms (mean = 190.3 +/- 48.3) with P = 0.0014 for both differences (Fig 2A).