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Preeclampsia (PE) is a common and proprietary complication during pregnancy. The correlation was found between the levels of HtrA3 and TGF-β 2 and preeclampsia (PE). This study aimed to detect the HtrA3 and TGF-β2 in different parts of the third trimester (maternal serum, placenta). The 102 pregnant women who were eligible for enrollment in the obstetric examination at Tengzhou Maternity and Child Health Hospital from June 2020 to December 2020 were selected as the research objects. 28 cases diagnosed with PE were set up as the observation group 1, and 24 cases diagnosed with severe PE were set up as the observation group 2. Select 50 normal pregnant women as the control group and research the expressions of HtrA3 and TGF-β2 in maternal blood and placental tissues of patients with PE. ELISA was used to measure the concentration of HtrA3 and TGF-β2 in maternal blood. The distribution of HtrA3 and TGF-β2 in the placenta was observed by immunohistochemical techniques (IHC) and mean optical density value (MOD). S/D was measured by using color Doppler ultrasonic. The concentration of HtrA3 and TGF-β2 in the maternal blood and placenta tissue was higher in severe PE compared with PE and normotensive pregnancy, respectively ( P &lt; 0.05 ). There is a negative correlation between the level of HtrA3 and TGF-β2 and the birthweight of newborns both in maternal plasma and placenta tissue in preeclampsia and positive correlation between HtrA3 and TGF-β2 levels and S/D. HtrA3 and TGF-β2 may correlate with severity of PE and their neonatal adverse outcomes.

Study on the Correlation between the Levels of HtrA3 and TGF-β2 in Late Pregnancy and Preeclampsia