MMP9 and hydrops fetalis: In contrast, HF diet induced significant increase in abundances of Lactobacillus, Allobaculum, Clostridium and Bifidobacterium (p < 0.05), of which Clostridium and Bifidobacterium showed significant positive correlations with atherosclerotic lesion size at the sinus, aortic tree, plasma A-FABP, cholesterol, MMP-9 or sE-selectin (Fig. 4).