As shown in Figure 13A, 1.67%, 10%, and 16.34% of fibrosis genes were upregulated in ApoE–/– at 6 weeks, 32 weeks, and 78 weeks, respectively; PPE-AAA upregulated more fibrosis genes (19.69%) than that of other AAA models; ApoE–/– Ang II-AAA at 7 days and 28 days upregulated more fibrosis genes (20% and 9.27%) than that of 14 days. Here, APOE is linked to triple-A syndrome.