IL6 and hydrops fetalis: Compared with the HF group, the expression of IL-6 (P < 0.05, Figure 7F) and TNF-α (P < 0.0001, Figure 7G) in the HF + levosimendan group was significantly decreased, and the inflammation level of the HF + sarcopenia group was effectively improved after injection of levosimendan (P < 0.0001, Figures 7F,G).