H19 and hydrops fetalis: LncRNA H19 was significantly more highly expressed at E65 and E90 than at E120 (Figure S2B), and the ceRNA network indicated that lncRNA H19 could act as a decoy to relieve miRNA-inhibiting effects on genes involved in HF development (Figure S4B); therefore, the effects of lncRNA H19 on the proliferation of DP cells were explored.