Evaluation of maternal serum sestrin-2 levels in intrauterine growth restriction.

Abstract

Sestrin-2 (SESN2) is a antioxidant protein that can be activated by a number of conditions, including DNA damage and hypoxia. Our objective was to evaluate maternal serum SESN2 levels in patients with intrauterine growth restriction (IUGR) and its association with adverse perinatal outcomes. This prospective study included a total of 87 pregnant women admitted to our tertiary care center between 2018 August and 2019 July. The study group consisted of a total of 44 patients who had been diagnosed with IUGR. Forty-three low-risk and gestational age-matched pregnant women were taken as control group. Demographic data, maternal serum SESN2 levels, and maternal-neonatal outcomes were evaluated. SESN2 levels were analyzed by the enzyme-linked immunosorbent assay (ELISA) method and compared between groups. Maternal serum SESN2 levels were significantly higher in the IUGR group compared to control group (22.38ng/ml vs. 13.0ng/ml, p < 0.001). In correlation analysis, a negative significant correlation was found between SESN2 levels and gestational week at delivery (r = - 0.387, p < 0.001). The ideal cut-off value for detecting IUGR was 9.5ng/ml, and the area under the curve was 0.719 (95%CI: 0.610-0.827). Birth interval, gestational week at birth, birth weight, and 1-5-min Apgar scores were lower in the IUGR group (p < 0.001). Maternal serum SESN2 levels are elevated in IUGR and are associated with adverse neonatal outcome. Considering that SESN2 is involved in pathogenesis, it can be used as a new marker for the evaluation of IUGR.