کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5745778 | 1618781 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pharmacokinetics and effects of tetrabromobisphenol a (TBBPA) to early life stages of zebrafish (Danio rerio)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In silico and in vivo approaches were combined in an aggregate exposure pathway (AEP) to assess accumulation and effects of waterborne exposures of early life stages of zebrafish (Danio rerio) to tetrabromobisphenol A (TBBPA). Three metabolites, two of which were isomers, were detected in fish. Two additional metabolites were detected in the exposure solution. Based on kinetics modeling, proportions of TBBPA that were bioaccumulated and metabolized were 19.33% and 8.88%, respectively. Effects of TBBPA and its metabolites were predicted by use of in silico, surflex-Dock simulations that they were capable of interacting with ThRα and activating associated signaling pathways. TBBPA had a greater toxic contribution than its metabolites did when we evaluated the toxicity of these substances based on the toxicity unit method. The half of the internal lethal dose (ILD50) was 18.33 μg TBBPA/g at 74 hpf. This finding was further confirmed by changes in expressions of ThRα and other NRs as well as associated genes in their signal pathways. Specifically, exposure to 1.6 Ã 102, 3.3 Ã 102 or 6.5 Ã 102 μg TBBPA/L significantly down-regulated expression of ThRα and associated genes, ncor, c1d, ncoa2, ncoa3, and ncoa4, in the AR pathway and of er2a and er2b genes in the ER pathway.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 190, January 2018, Pages 243-252
Journal: Chemosphere - Volume 190, January 2018, Pages 243-252
نویسندگان
Hongling Liu, Zhiyuan Ma, Tao Zhang, Nanyang Yu, Guanyong Su, John P. Giesy, Hongxia Yu,