Prenatal exposure to neonicotinoid insecticides, fetal endocrine hormones and birth size: Findings from SMBCS

作者：Boya Zhang, Zheng Wang, Jiming Zhang, Yiming Dai, Jiayun Ding, Xingzu Zhou, Xiaojuan Qi, Chunhua Wu, Zhijun Zhou · 发表于：Environment International · 年份：2024 · DOI：10.1016/j.envint.2024.109111 · 被引用次数：17 · 研究领域：Insect and Pesticide Research、Pesticide Residue Analysis and Safety、Biotin and Related Studies

BACKGROUND: Neonicotinoid insecticides (NNIs) were reported to be endocrine disruptors and cause adverse health effects in human. However, epidemiological evidence about the effect of prenatal NNIs exposure on birth outcome and hormones remains limited. OBJECTIVES: This study aimed to explore the effects of prenatal NNIs exposure on neonatal birth size and endocrine hormones, and assess the potential mediating role of hormones. METHODS: The study included 860 mother-child pairs from the Sheyang Mini Birth Cohort Study. 12 parent NNIs (p-NNIs) and 6 metabolites of NNIs (m-NNIs) were measured in maternal urine samples collected on their delivery days, and 5 thyroid hormones and 2 sex hormones were analyzed in cord serum. The concentrations of p-NNIs and its specific metabolite(s) were summed to characterize the role of each class of NNIs. Generalized linear model and weighted quantile sum regression were used to examine the impact of prenatal NNIs exposure on birth size and endocrine hormones, and potential mediating roles of hormones were further explored using mediation analysis. RESULTS: Higher detection frequencies of m-NNIs were observed than those in p-NNIs. A decrease in neonatal head circumference for gestation age z-score was associated with a 10-fold increase in 5-OH-IMI (β = -0.15, 95 %CI: -0.26, -0.03), ∑DIN (β = -0.22, 95 %CI: -0.40, -0.03), ∑IMI (β = -0.20, 95 %CI: -0.35, -0.06) and ∑NNIs (β = -0.23, 95 %CI: -0.42, -0.04). ∑IMI and ∑DIN were the major contributors...