TNF and hydrops fetalis: The results suggested that these indicators’ levels in the MOD group were significantly raised in contrast to the CON group (p < 0.01), while the levels significantly decreased after fucoidan intervention (p < 0.01) compared to the MOD group; also, the HF group had significantly declined LPS, TNF-α and IL-1β levels compared to the LF group (p < 0.05).