FOXP3 and coronary artery disorder: On the other hand, in the CAD-DM2 group the increase in Enterobacteriaceae (p = 0.005, β = 0.945, r2= 0.96) and the decrease in Faecalibacterium prausnitzii (p = 0.041, β = -0.911, r2= 0.91) were associated with the increase in serum TMAO levels, while the decrease in the abundance of Bacteroides fragilis (p = 0.039, β = 0.911, r2= 0.91) was associated with the reduction in the FOXP3 mRNA expression.