GPX4 expression was positively correlated with plasma cells, memory B cells, monocytes, naïve B cells, neutrophils, resting natural killer (NK) cells, and gamma delta T cells, while resting dendritic cells, Tregs, follicular helper T cells, M2 macrophages, and eosinophils were negatively correlated with GPX4 expression in the AAA and normal aortic vessel samples (p value < 0.05, Figure 6A). Here, GPX4 is linked to triple-A syndrome.