Table 1.

ACE2 expression during pregnancy and its normal function.

ACE2 expression	Function
Ovary	Hormonal secretion influence and further regulation of oocyte maturation and luteus corpum.
Endometrium	Regulation of embryonic implantation and decidua's formation.
Decidua	Decidualization. Trophoblastic invasion.
Placenta	Decrease in vascular resistance.
Kidney	Blood pressure regulation.