MRC1 and triple-A syndrome: Notably, flow cytometry analyses of aneurysms revealed a decrease in the percentage of classically activated M1 macrophages (I-A/I-E+ CD206−) and an increase in alternatively activated M2 macrophages (I-A/I-E− CD206+) in AAA mice fed the inulin diet compared with those on the chow or cellulose diets (Figure 1F, Supplementary Figure S3).