The levels of pro-inflammation cytokines (TNFα and IL-6) in the portal serum of rats in the HF group were higher than those in the Chow group (TNFα: 355.59 ± 8.10 EU/mL vs. 283.16 ± 7.28 EU/mL, p < 0.01; IL-6: 58.98 ± 2.59 EU/mL vs. 44.56 ± 3.67 EU/mL, p < 0.01). Here, IL6 is linked to hydrops fetalis.