Assessing Estrogenic Activities of Selected Endocrine Disrupting Chemicals and their Combination Effects

Autor: Xiao Ling Shao, Xiao Yan Ma, Jun Ma, Xiang Yang Wu, Ang Gao, Wen Qi Zhong
Rok vydání: 2013
Předmět:
Zdroj: Advanced Materials Research. :2944-2948
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.765-767.2944
Popis: Yeast two-hybrid system was used to investigate the estrogenic activities of 13 kinds of representative endocrine disrupting chemicals (EDCs) and their combinary effects. Results show that the order of estrogenic potencies for these chemicals is: 17α-ethynylestradiol>diethylstilbestrol >17β-estradiol>estrone>estriol>branchedp-nonylphenol>4-t-octylphenol>bisphenol A>diethyl phthalate>4-n-nonylphenol>di-(2-ethylhexyl) phthalate>dibutyl phthalate>dimethyl phthalate. The mixture effects of multiple EDCs were compared to those obtained from individual chemicals, using the model of concentration addition. Results reveal that the estrogenicities of multicomponent mixtures of more than three (including three) of EDCs follow antagonistic effects, while there is no definite conclusion for binary systems. The less than additive effects were also confirmed in the spiked experiments conducted in the extracts of real water samples.
Databáze: OpenAIRE