-Abdominal aortic aneurysm model: C57BL/6J mice with induced abdominal aortic aneurysm (AAA) + one-time oral gavage A. muciniphila [65]-Apolipoprotein E-deficient mice (dyslipidemia model): 8 weeks of daily oral gavage of A. muciniphila [76]. This evidence concerns the gene APOE and abdominal aortic aneurysm.