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In vitro effects of brominated flame retardants, selected metals and their mixtures on ethoxyresorufin-O-deethylase activity in Mossambica tilapia liver
Ecotoxicology and Environmental Safety ( IF 6.8 ) Pub Date : 2018-06-08 , DOI: 10.1016/j.ecoenv.2018.05.084
Biyan Wang , Haiyan Wang , Dan Xiao , Daxiong Han

The in vitro effects of individual brominated flame retardants (BFRs), selected metals, and their binary mixtures on ethoxyresorufin-O-deethylase (EROD) activity were evaluated using a plate-reader method. The BFRs, 2,2′,4,4′-tetrabromodiphenyl ether (BDE-47), decabromodiphenyl oxide (BDE-209), hexabromocyclododecane (HBCD), and tetrabromobisphenol A (TBBPA), were tested at doses ranging from 0.1 ng/L to 100 µg/L. Selected metals (Cu2+, Cd2+, Hg2+, and Zn2+) were screened at doses of 0.1 mg/L to 50 mg/L. The activity of EROD was significantly induced by TBBPA, BDE-209, and Zn2+, while HBCD, Cu2+, Cd2+, and Hg2+ decreased EROD activity. Moreover, following exposure to binary mixtures of metals and BFRs, the EROD activity dose-response curves were similar to those of the metals alone, indicating that EROD activity was governed by the metals.



中文翻译:

溴化阻燃剂,某些金属及其混合物对莫桑比克罗非鱼肝中乙氧基间苯二酚-O-脱乙基酶活性的体外影响

使用读板法评估了各种溴化阻燃剂(BFR),选定的金属及其二元混合物对乙氧基间苯二酚-O-脱乙基酶(EROD)活性的体外影响。测试BFR,2,2',4,4'-四溴二苯醚(BDE-47),十溴二苯醚(BDE-209),六溴环十二烷(HBCD)和四溴双酚A(TBBPA)的剂量范围为0.1 ng / L至100 µg / L。以0.1 mg / L至50 mg / L的剂量筛选出选定的金属(Cu 2 +,Cd 2 +,Hg 2+和Zn 2+)。TBBPA,BDE-209和Zn 2+显着诱导EROD活性,而HBCD,Cu 2 +,Cd 2+和Hg 2+显着诱导EROD活性。EROD活性降低。此外,暴露于金属和BFR的二元混合物后,EROD活性的剂量反应曲线与单独的金属相似,表明EROD活性受金属控制。

更新日期:2018-06-08
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