FMO5 and triple-A syndrome: For AAA and normal samples (Figure 6A), the DEGs were enriched in biological processes, such as regulation of histone phosphorylation and positive regulation of acute inflammatory response; cell components, such as the haptoglobin–hemoglobin and hemoglobin complexes; and molecular functions, such as superoxide-generating NADPH oxidase activator activity, haptoglobin binding, phosphatase binding, and oxygen carrier activity.