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Detection of estrogenic potency in wastewater and surface water with three in vitro bioassays

机译:三种体外生物测定法检测废水和地表水中的雌激素能力

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摘要

A study was performed to optimize sample preparation and application of three in vitro assays for measuring estrogenic potency in environmental extracts. The three assays applied were an estrogen receptor(ER)-binding assay and two reporter gene effect assays: a yeast estrogen screen(YES) and the ER-mediated chemically activated luciferase gene expression(ER-CALUX) assay. All assays were able to detect estrogenicity, but the amounts of material needed for the assays differed greatly between the three assays(ER-binding assayYES>ER-CALUX). In addition, in the ER-binding assay, both agonists and antagonists give an estrogenic response, resulting in higher estradiol equivalency (EEQ) levels than both the ER-CALUX and the YES assay for the same samples.
机译:进行了一项研究,以优化样品制备和三种体外测定法的应用,以测定环境提取物中的雌激素能力。应用的三种测定是雌激素受体(ER)结合测定和两种报告基因效应测定:酵母雌激素筛选(YES)和ER介导的化学活化的荧光素酶基因表达(ER-CALUX)测定。所有测定都能够检测雌激素,但是在三种测定之间(ER结合测定是> ER-CALUX),测定所需的物质量差异很大。此外,在ER结合测定中,激动剂和拮抗剂均产生雌激素反应,与相同样品的ER-CALUX和YES测定相比,雌二醇当量(EEQ)水平更高。

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