In addition, the expression of inflammation factors, TNF-α, IL-6, and chemokine ligand (CCL) 4 mRNA, in the heart tissue of mice in the HF groups, was higher than that in the sham group (P < 0.05 or P < 0.01; Figures 7(b), 7(c), and 7(e)). Here, IL6 is linked to hydrops fetalis.