Previous studies have shown that Ang II type 1 receptor (AT1R) blockers (ARBs), ACE inhibitors (ACEI), and mineralocorticoid receptor antagonists (MRA) may up-regulate the expression of ACE2 both in acute and chronic settings of cardiovascular diseases (CVDs), such as hypertension, heart failure (HF) and myocardial infarction (1). The gene discussed is ACE2; the disease is hydrops fetalis.