Adila Adili, Haoran Liu, Hui Tian, Yuanyuan Ji, Xiaofang Han
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引用次数: 0
Abstract
Endocrine disrupting chemicals are widespread in the environment and can interfere with reproductive hormone regulation, but their effects during adolescence are not yet clear. This study investigated the associations between exposure to multiple endocrine disrupting chemicals and sex steroid hormone levels in adolescent males. Data were obtained from the National Health and Nutrition Examination Survey 2013–2016, including males aged 12–19 years. Urinary concentrations of 17 endocrine disrupting chemicals, including phthalates, phenols, and parabens, were analyzed in relation to serum sex hormones. Associations were examined using linear regression, quantile g-computation, and Bayesian kernel machine regression to capture both single and mixture exposures. Linear regression identified inverse associations of mono-(3-carboxypropyl) phthalate with total testosterone, estradiol, free androgen index, free testosterone, and bioavailable testosterone. Mono-(2-ethyl-5-hydroxyhexyl) phthalate was inversely associated with estradiol, free androgen index, free testosterone, and bioavailable testosterone, but positively associated with sex hormone-binding globulin. Quantile g-computation confirmed these relationships, while Bayesian kernel machine regression demonstrated that combined exposure to 17 endocrine disrupting chemicals collectively reduced total testosterone, estradiol, free androgen index, free testosterone, and bioavailable testosterone, while increasing sex hormone-binding globulin. These findings reveal a consistent pattern of elevated binding globulin levels accompanied by decreased bioactive sex hormones. In conclusion, exposure to endocrine disrupting chemicals, both individually and as mixtures, is associated with altered sex steroid hormone levels in adolescent males. These results underscore the importance of environmental regulation to limit exposure during this critical developmental stage and highlight the potential role of chemical mixtures in adolescent reproductive health.
期刊介绍:
Drawing from a large number of disciplines, Reproductive Toxicology publishes timely, original research on the influence of chemical and physical agents on reproduction. Written by and for obstetricians, pediatricians, embryologists, teratologists, geneticists, toxicologists, andrologists, and others interested in detecting potential reproductive hazards, the journal is a forum for communication among researchers and practitioners. Articles focus on the application of in vitro, animal and clinical research to the practice of clinical medicine.
All aspects of reproduction are within the scope of Reproductive Toxicology, including the formation and maturation of male and female gametes, sexual function, the events surrounding the fusion of gametes and the development of the fertilized ovum, nourishment and transport of the conceptus within the genital tract, implantation, embryogenesis, intrauterine growth, placentation and placental function, parturition, lactation and neonatal survival. Adverse reproductive effects in males will be considered as significant as adverse effects occurring in females. To provide a balanced presentation of approaches, equal emphasis will be given to clinical and animal or in vitro work. Typical end points that will be studied by contributors include infertility, sexual dysfunction, spontaneous abortion, malformations, abnormal histogenesis, stillbirth, intrauterine growth retardation, prematurity, behavioral abnormalities, and perinatal mortality.