| gene expression responses for detecting sublethal effects of xenobiotics and whole effluents on a xenopus laevis embryo assay. | in the present study, the authors investigated the effects of bisphenol a, chlorpyrifos, methylparaben, and 2 effluent samples from wastewater treatment plants located in the province of madrid, spain, on the messenger rna expression of specific genes involved in early development (esr1, pax6, bmp4, and myf5) and a gene involved in the general stress response (hsp70) during xenopus laevis embryo development. gene expression was analyzed after 4 h, 24 h, and 96 h of exposure by semiquantitative r ... | 2013 | 23637088 |