ANGPT1 and aneurysm: In patients without registered ACEi, aneurysm patients showed higher serum levels of all angiotensin (Ang) metabolites, with statistically significant differences in Ang 1–5 (p-value = 0.004), Ang I (p-value = 0.002), and angiotensin II (p-value: 0.047) (Figure 1).