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Abstract Title:

Exposure to neonicotinoid insecticides induces embryotoxicity in mice and rabbits.

Abstract Source:

Toxicology. 2017 Oct 20 ;392:71-80. Epub 2017 Oct 20. PMID: 29061322

Abstract Author(s):

Janka Babeľová, Zuzana Šefčíková, Štefan Čikoš, Alexandra Špirková, Veronika Kovaříková, Juraj Koppel, Alexander V Makarevich, Peter Chrenek, Dušan Fabian

Article Affiliation:

Janka Babeľová

Abstract:

The potential toxicity of neonicotinoids (thiacloprid, acetamiprid, thiamethoxam and clothianidin) as well as related commercial products Calypso 480SC (thiacloprid mixture), Mospilan 20SP (acetamiprid mixture) and Agita 10WG (thiamethoxam mixture) on developmental capacities and quality of preimplantation embryos was evaluated. During in vitro tests, isolated 2-cell stage mice embryos were cultured in media with various concentrations of active compounds or commercial products until blastocyst formation. As found using stereomicroscopic examination, all neonicotinoids at highest (100μM) concentration negatively affected embryonic development (P<0.001). Fluorescence staining revealed that the blastocysts obtained displayed lower numbers of blastomeres and elevated incidence of cell death. Thiacloprid and acetamiprid decreased quality of blastocysts also at 10μM concentration. From the tested products only Calypso 480SC containing 10μM of thiacloprid showed harmful impact on embryo quality. In an experiment using rabbit embryos, similar negative effect of thiacloprid in vitro was recorded. In vivo testing confirmed that blastocysts collected from thiacloprid-treated mice displayed lower total cell counts than blastocysts from controls. The sensitivity of embryonic cells to neonicotinoids is in the order of thiacloprid>acetamiprid, thiomethoxam>clothianidin. Thiacloprid impairs development and quality of both mouse and rabbit preimplantation embryos, and shows embryotoxicity even at acute reference dose.

Study Type : Animal Study, In Vitro Study
Additional Links
Problem Substances : Pesticides : CK(827) : AC(95)
Adverse Pharmacological Actions : Embryotoxic : CK(13) : AC(7)

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