This study identified eight potential biomarkers for AAA, whereof only one (bleomycin hydrolase, BH) was validated by an enzyme-linked immunosorbent assay (ELISA) in an independent cohort of 41 controls and 38 patients with small AAA, 40 patients with large AAA, and 55 patients with previous ruptured AAA. The gene discussed is BLMH; the disease is triple-A syndrome.