现代研究认为慢性炎症作用下的腹主动脉中膜弹力纤维降解在腹主动脉瘤（ＡＡＡ）发病中起主要作用，此结论是在比较人体成熟ＡＡＡ与正常腹主动脉的基础上得出的，对ＡＡＡ的早期变化以及各种促进因素在ＡＡＡ形成过程中的相互作用尚不清楚。因此，建立一种与人体ＡＡＡ有着相 Modern studies suggest that the degradation of the abdominal aortic elastic membrane under chronic inflammation plays a major role in the pathogenesis of abdominal aortic aneurysm (AAA). This conclusion is based on the comparison of human mature AAA and normal abdominal aorta, The early changes to AAA and the interaction of various contributing factors in the formation of AAA are not clear. Therefore, to establish a kind and human AAA has a phase