当前位置: X-MOL 学术Environ. Int. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A comprehensive evaluation of the endocrine-disrupting effects of emerging organophosphate esters
Environment International ( IF 10.3 ) Pub Date : 2024-11-01 , DOI: 10.1016/j.envint.2024.109120
Quan Zhang, Liuqing Yang, Huiyun Wang, Chengwang Wu, Rui Cao, Meirong Zhao, Guanyong Su, Cui Wang

The ubiquitous presence of organophosphate esters (OPEs) in the environment has prompted growing concerns about their potential health risks, particularly their endocrine-disrupting effects. This study comprehensively evaluated the endocrine-disrupting properties of six emerging OPEs: five aryl-OPEs (2-ethylhexyl diphenyl phosphate (EHDPP), tris (2-biphenylyl) phosphate (TBPP), resorcinol bis (diphenyl phosphate) (RDP), 4-hydroxyphenyl diphenyl phosphate (para-OH-TPHP), and 3-hydroxyphenyl diphenyl phosphate (meta-OH-TPHP) and one alkyl-OPE, triallyl phosphate (TAP). Our findings revealed that all tested aryl-OPEs exhibited antagonistic effects on one or more hormone receptors. Importantly, para-OH-TPHP demonstrated the most potent antagonistic activity, inhibiting estrogen receptor α (ERα), thyroid hormone receptor β (TRβ), glucocorticoid receptor (GR), and mineralocorticoid receptor (MR) with the concentration of test compounds showing 20 % relative inhibitory concentration (RIC20) value below 10−6 mol/L (M). RDP antagonized ERα and cortical receptors (GR and MR), TBPP affected TRβ and GR, while EHDPP and meta-OH-TPHP targeted MR. Regarding steroidogenesis, para-OH-TPHP significantly inhibited genes for estrogen (cyp19) and cortisol synthesis (cyp11b2), and along with meta-OH-TPHP, EHDPP, TAP, and RDP downregulated cyp11a1, a rate-limiting enzyme in hormone synthesis. All compounds caused malformations and swimming abnormalities in zebrafish embryos/larvae at concentrations of 10−7 M or higher, with para-OH-TPHP showing nearly 50 % peak induction. Furthermore, the six compounds tested influenced genes associated with the hypothalamic-pituitary–gonadal (HPG) axis in both zebrafish larvae and adult female zebrafish, in addition to affecting the reproductive behavior of zebrafish. A weighted scoring system was employed to rank the endocrine-disrupting potency of the OPEs, with para-OH-TPHP exhibiting the highest risk, followed by EHDPP, RDP, TBPP, meta-OH-TPHP, and TAP. Collectively, our results highlight the significant endocrine-disrupting effects of emerging OPEs, underscoring the urgent need for further research to assess their potential health implications.

中文翻译:


新兴有机磷酸酯的内分泌干扰作用的综合评价



有机磷酸酯 (OPE) 在环境中无处不在,这促使人们越来越担心其潜在的健康风险,尤其是其内分泌干扰作用。本研究全面评估了六种新兴 OPE 的内分泌干扰特性:五种芳基-OPE(2-乙基己基二苯基磷酸酯 (EHDPP)、三(2-联苯基)磷酸酯 (TBPP)、间苯二酚双(二苯基磷酸酯)(RDP)、4-羟基苯基二苯基磷酸酯 (para-OH-TPHP) 和 3-羟基苯基二苯基磷酸酯 (meta-OH-TPHP) 和一种烷基基 OPE,三烯基磷酸酯 (TAP)。我们的研究结果表明,所有测试的芳基-OPEs 都对一种或多种激素受体表现出拮抗作用。重要的是, OH-TPHP 表现出最有效的拮抗活性,抑制雌激素受体α (ERα)、甲状腺激素受体β (TRβ)、糖皮质激素受体 (GR) 和盐皮质激素受体 (MR),测试化合物浓度显示 20% 相对抑制浓度 (RIC20) 值低于 10-6 mol/L (M)。RDP 拮抗 ERα 和皮质受体 (GR 和 MR),TBPP 影响 TRβ 和 GR,而 EHDPP 和 meta-OH-TPHP 靶向 MR。关于类固醇生成,para-OH-TPHP 显着抑制雌激素 (cyp19) 和皮质醇合成基因 (cyp11b2),并与 meta-OH-TPHP、EHDPP、TAP 和 RDP 一起下调 cyp11a1,一种激素合成中的限速酶。所有化合物在浓度为 10-7 M 或更高的斑马鱼胚胎/幼虫中都会导致畸形和游泳异常,其中对 OH-TPHP 显示出近 50% 的峰诱导。 此外,测试的 6 种化合物除了影响斑马鱼幼鱼的生殖行为外,还影响了斑马鱼幼鱼和成年雌性斑马鱼中与下丘脑-垂体-性腺 (HPG) 轴相关的基因。采用加权评分系统对 OPE 的内分泌干扰效力进行排名,其中 para-OH-TPHP 表现出最高风险,其次是 EHDPP、RDP、TBPP、meta-OH-TPHP 和 TAP。 总的来说,我们的结果强调了新兴 OPE 的显着内分泌干扰作用,强调了迫切需要进一步研究以评估其潜在的健康影响。
更新日期:2024-11-05
down
wechat
bug