Associations of prenatal exposure to multiple metals with testicular volume and anogenital distance in infant boys: A longitudinal cohort study

Autor: Lulu Huang, Sifang Huang, Xiaoyu Luo, Longman Li, Xiang Chen, Gaohui Zan, Yanli Tan, Chaoqun Liu, Qingzhi Hou, Xiaoting Ge, Chunfei Chen, Xin Hong, Yan Tian, Aimin Yang, Pan Chen, Mujun Li, Zengnan Mo, Xiaobo Yang
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Environment International, Vol 143, Iss , Pp 105900- (2020)
Druh dokumentu: article
ISSN: 0160-4120
DOI: 10.1016/j.envint.2020.105900
Popis: Background: Human are widely exposed to multiple metals, some of which have suspected reproductive toxicity, but no human studies have investigated the developmental effects of prenatal metal exposure. Objectives: We aimed to evaluate the associations between prenatal multiple metal exposure and reproductive development in boys at 2–3 years using multi-pollutant approach. Methods: This prospective study used data of 564 mother–child pairs recruited from the Guangxi Birth Cohort Study. Twenty serum metal concentrations were measured. Least absolute shrinkage and selection operator (LASSO) penalized regression was used to identify independent associations between prenatal multiple metal exposure and testicular volume (TV), and anogenital distance (AGD). Adjusted estimates were then obtained using multiple linear regression analysis, and the regression tree method was used to explore the interactions. Results: Boys in the highest quartile of prenatal lead exposure had a 0.064 mL (95% CI: −0.124, −0.004) smaller ln-transformed TV, 0.060 cm (95% CI: −0.110, −0.011) shorter ln-transformed anopenile distance (AGDap), and 0.115 cm (95% CI: −0.190, −0.039) shorter ln-transformed anoscrotal distance (AGDas) than boys in the lowest quartile (all Ptrend
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