H19 and glioma: H19 overexpression or a miR‐370‐3p knockdown promoted TGF‐β‐induced EMT.31 In glioma cells U251 and U87, H19 promotes proliferation and invasion by downregulating miR‐152.32 H19 gene may participate in placenta development by a posttranscriptional mechanism.30 In our study, the data showed that the expression of miR‐18a‐5p was negatively correlated with the level of H19 in FGR placenta tissues.