MPO and triple-A syndrome: The plasma level of MPO was found to be significantly increased in both AAA cohorts compared to the healthy collective, as well as the PAD collective (median 13.63 ng/mL or 14.36 ng/mL, respectively (IQR = 11.27 or 9.65, respectively) vs. 9.16 ng/mL (IQR 7.06, healthy) or 11.74 ng/mL (IQR 4.93, PAD), respectively (Table 2, Figure 1A)).