Investigation of Serum Amphiregulin Concentrations in Pregnant Women Diagnosed with Isolated Fetal Growth Restriction in the Third Trimester

 

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Abstract

Objective We aimed to investigate serum amphiregulin (AREG) concentrations in pregnant women with isolated fetal growth restriction (FGR) in the third trimester.

Materials and methods This cross-sectional study was conducted with 90 pregnant women who applied to the Umraniye Training and Research Hospital Gynecology and Obstetrics Clinic between January 2022 and May 2022. The FGR group consisted of 45 pregnant women diagnosed with FGR in the third trimester, and the control group consisted of 45 healthy pregnant women matched with the FGR group in terms of age and body mass index (BMI). Demographic characteristics, ultrasound findings, and neonatal outcomes were noted. As a primary outcome, the two groups were compared for maternal serum AREG concentrations.

Results Both groups were similar in terms of demographic characteristics (p>0.05). While fetal BPD, AC, and FL measurements in the group diagnosed with FGR were significantly lower than in the control group, umbilical artery Doppler PI and S/D were higher (p=0.000, for all). Gestational age at birth, newborn birth weight, birth height, and 1-minute Apgar score were significantly lower and the NICU admission rate was higher in the FGR group (p=0.000, p=0.000, p=0.000, p=0.027, p=0.011 respectively). Gestational age at blood sampling for AREG was similar in both groups (p=0.869). While maternal serum AREG concentration was 969.39 ng/L in the FGR group, it was 795.20 ng/L in the control group (p=0.018). AUC analysis of AREG for estimation of FGR in ROC analysis was 0.57 (p<0.247, 95% CI=0.44–0.69). The optimal threshold value for FGR estimation of maternal serum AREG concentration was determined as 874.03 ng/L with 55% sensitivity and 55% specificity.

Conclusion High maternal serum AREG concentrations appear to be associated with isolated FGR in the third trimester. The pathways through which AREG modulates fetal growth remain to be investigated.

Publication History

Received: 10 May 2023

Accepted: 14 July 2023

Article published online:
25 August 2023

© 2023. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

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