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Assessment of the lethal and sublethal effects of 20 environmental chemicals in zebrafish embryos and larvae by using OECD TG 212
Author(s) -
Horie Yoshifumi,
Yamagishi Takahiro,
Takahashi Hiroko,
Shintaku Youko,
Iguchi Taisen,
Tatarazako Norihisa
Publication year - 2017
Publication title -
journal of applied toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.784
H-Index - 87
eISSN - 1099-1263
pISSN - 0260-437X
DOI - 10.1002/jat.3487
Subject(s) - toxicity , toxicology , zebrafish , embryo , biology , danio , larva , acute toxicity , pesticide , median lethal dose , andrology , chemistry , fishery , ecology , biochemistry , medicine , organic chemistry , gene
Fish embryo toxicity tests are used to assess the lethal and sublethal effects of environmental chemicals in aquatic organisms. Previously, we used a short‐term toxicity test published by the Organization for Economic Co‐operation and Development (test no. 212: Fish, Short‐term Toxicity Test on Embryo and Sac‐Fry Stages [OECD TG 212]) to assess the lethal and sublethal effects of aniline and several chlorinated anilines in zebrafish embryos and larvae. To expand upon this previous study, we used OECD TG 212 in zebrafish embryos and larvae to assess the lethal and sublethal effects of 20 additional environmental chemicals that included active pharmaceutical ingredients, pesticides, metals, aromatic compounds or chlorinated anilines. Zebrafish embryos ( Danio rerio ) were exposed to the test chemicals until 8 days post‐fertilization. A delayed lethal effect was induced by 16 of the 20 test chemicals, and a positive correlation was found between heart rate turbulence and mortality. We also found that exposure to the test chemicals at concentrations lower than the lethal concentration induced the sublethal effects of edema, body curvature and absence of swim‐bladder inflation. In conclusion, the environmental chemicals assessed in the present study induced both lethal and sublethal effects in zebrafish embryos and larvae, as assessed by using OECD TG 212. Copyright © 2017 John Wiley & Sons, Ltd.