Maternal melatonin therapy increased renal Ren (FC = 6.46), Atp6ap2 (FC = 7.71), Agt (FC = 4.96), Ace (FC = 4.01), Ace2 (FC = 3.21), Agtr1b (FC = 4.25), and Mas1 (FC = 2.51) mRNA expression in the DEX+HF+M group. This evidence concerns the gene ACE and hydrops fetalis.