MMP9 and triple-A syndrome: Functional enrichment analysis showed the level of granulocyte colony-stimulating factor (G-CSF), milk fat globule-EGF factor 8 protein (MFG-E8), macrophage inflammatory protein 1 g (MIP-1g), and cardiotrophin 1 (CT-1) were positively correlated with IL-33, periostin, matrix metalloproteinase-1 (MMP-1), matrix metalloproteinase-9 (MMP-9), cathepsin B (CTSB), and cathepsin L (CTSL) in AAA mice (Li Y. et al., 2019).