Table 1.

miRNAs in PAS.

miRNAs	Trend	Sample	Gestational weeks	Target signaling molecular	Function	Ref
hsa-miR-10524-5p hsa-miR-133a-3p hsa-miR-937-3p hsa-miR-34b-5p hsa-miR-3529-3p hsa-miR-488-3p hsa-miR-490-3p	↑/↓	Peripheral blood plasma	Before cesarean section	–	Angiogenesis and blood vessel morphogensis	(22)
hsa-miR-17-5p hsa-miR-21-5p hsa-miR-25-3p hsa-miR-92a-3p hsa-miR-320a-3p	↑	Peripheral blood plasma	30–34w	Clusterin	Regulate the epithelial- mesenchymal transition, decrease the expression level of clusterin	(23)
miR-196a-5p, miR-518a-3p, miR-139-3p miR-671-3p	↓	Venous blood	third trimester	NF-κB, ANXA1, MMP11, E-cadherin	Angiogenesis, embryonic development, cell migration and adhesion, and tumor-related pathways	(24)
Micro-7	↓	Peripheral blood plasma	–	TGF-β	Promotes trophoblast invasion	(25)