The results showed that protein expression level of IL‐6, MCP1, and VCAM in aortic tissues was significantly increased in EPO‐induced AAA compared with the vehicle group, which was attenuated by low‐, medium‐ and high‐dose formoterol treatment relative to the EPO group (Figure 3A,D–G,J–L). This evidence concerns the gene EPO and triple-A syndrome.