IL6 and hydrops fetalis: Moreover, serum levels of IL-6 (unpaired two-tailed t-test, t8 = 5.704, p = 0.0005) and LPS (unpaired two-tailed t-test, t8 = 4.969, p = 0.0011) were significantly higher in the I-HF group than in the C-HF group (Figure 5H–J).