Objective To develop a bioassay method for monitoring environmental estrogens with Nile tilapia vitellogenin (Vg) as biomarker. Methods Vg was purified from the 17β-estradiol induced plasma of Nile tilapia by gel filtration and anion-exchange chromatography, identified and made into polyclonal antibody. Then, a sensitive enzyme-linked immunosorbent assay (ELISA) was developed to quantify Vg. Results The established ELISA had a working range from 15.6 to 1000 ng/mL, and the intra- and inter-assay coefficients of variations were 6.85% and 6.79%, respectively. The ELISA could effectively detect the estrogenic activity of bisphenol A. Conclusion The highly sensitive, specific and robust Nile tilapia Vg ELISA method is suitable for the detection of water environmental estrogens.
标题:利用罗非鱼卵黄原蛋白建立雌激素污染的检测方法
英文标题:Establishment of estrogens detection method using Nile tilapia(Oreochromis niloticus) vitellogenin