Additionally, on day 42, compared with the control group, SOD gene expression in duodenum of AAE group with a value of 1.5 g/kg, jejunum of AAE group with a value of 2.0 g/kg, and ileum of AAE group with a value of 1.0 g/kg was increased (p < 0.05, p < 0.10, p < 0.05). Here, SOD1 is linked to acquired angioedema.