ELISA analysis showed that serum levels of MCP-1, IL1β and NF-κB were significantly elevated in comparison with healthy control (Figure 1A–C, P<0.01), and linear regression analysis showed that the expression of MCP-1 was positively correlated with NF-κB and IL1β in AAA patients (Figure 1G,H, P<0.01 and P<0.05 respectively). This evidence concerns the gene CCL2 and triple-A syndrome.