WNT7A and hydrops fetalis: Several DEmiRNAs, including miR-23b-5p, miR-29b, miR-125a/b, miR-138, miR-149, miR-324-3p, miR-877, were recognized for their miRNA–mRNA interaction relationships, which may participate in HF morphogenesis (miR-23b-5p targeting WNT6, miR-29b targeting PLCB1, miR-125b targeting CD34, miR-138 targeting Wnt10b, and miR-149 targeting Wnt7A) and were highlighted.