Xiang Zhang1,2, Yu-Jie Feng1,2, Jun Li1,2, Jia-Hu Hao3, Peng Zhu3, De-Xiang Xu1,2,3, Fang-Biao Tao4, Hua Wang5,6,7. 1. Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China. 2. Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China. 3. Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China. 4. Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China. taofangbiao@126.com. 5. Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China. wanghuadev@126.com. 6. Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China. wanghuadev@126.com. 7. Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, China. wanghuadev@126.com.
Abstract
BACKGROUND: Maternal selenium (Se) deficiency is associated with some adverse pregnant outcomes. However, it remains controversial whether maternal Se deficiency during gestation enhances the risks for low-birth-weight (LBW) and small-for-gestational-age (SGA) newborns. METHODS: For our cohort study, total 3133 mother-and-infant pairs were selected. Maternal serum Se concentration was detected by graphite furnace atomic absorption spectrometry. According to international references for maternal serum Se concentration, subjects were divided into Se deficiency (<45.0 μg/L), Se insufficiency (45.0-94.9 μg/L) and Se sufficiency (≥95.0 μg/L). RESULTS: There was a positive relation of maternal serum Se concentration in gestation and neonatal birth weight. Further analysis showed that the risks for LBW and SGA in SD group were significantly higher than that in SI and SS group, the adjusted ORs for LBW and SGA newborns were 1.87 (95%CI: 1.02, 3.45; P = 0.04) and 1.47 (95%CI: 1.07, 2.02; P = 0.02) in SI group, and 3.92 (95%CI: 2.03, 7.57; P < 0.001) and 2.77 (95%CI: 1.92, 4.02; P < 0.001) in SD group compared to SS group. In different gender subgroup, positive relations were observed between maternal Se deficiency and the risk for LBW girls, as well as the risks for both SGA girls and boys. CONCLUSION: Maternal Se deficiency in gestation was positively associated with the risk for LBW girls, as well as the risks for both SGA girls and boys.
BACKGROUND: Maternal selenium (Se) deficiency is associated with some adverse pregnant outcomes. However, it remains controversial whether maternal Se deficiency during gestation enhances the risks for low-birth-weight (LBW) and small-for-gestational-age (SGA) newborns. METHODS: For our cohort study, total 3133 mother-and-infant pairs were selected. Maternal serum Se concentration was detected by graphite furnace atomic absorption spectrometry. According to international references for maternal serum Se concentration, subjects were divided into Se deficiency (<45.0 μg/L), Se insufficiency (45.0-94.9 μg/L) and Se sufficiency (≥95.0 μg/L). RESULTS: There was a positive relation of maternal serum Se concentration in gestation and neonatal birth weight. Further analysis showed that the risks for LBW and SGA in SD group were significantly higher than that in SI and SS group, the adjusted ORs for LBW and SGA newborns were 1.87 (95%CI: 1.02, 3.45; P = 0.04) and 1.47 (95%CI: 1.07, 2.02; P = 0.02) in SI group, and 3.92 (95%CI: 2.03, 7.57; P < 0.001) and 2.77 (95%CI: 1.92, 4.02; P < 0.001) in SD group compared to SS group. In different gender subgroup, positive relations were observed between maternal Se deficiency and the risk for LBW girls, as well as the risks for both SGA girls and boys. CONCLUSION:Maternal Se deficiency in gestation was positively associated with the risk for LBW girls, as well as the risks for both SGA girls and boys.
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