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Toxins 2018, 10(9), 370; https://doi.org/10.3390/toxins10090370

Oxidative Damage and Nrf2 Translocation Induced by Toxicities of Deoxynivalenol on the Placental and Embryo on Gestation Day 12.5 d and 18.5 d

1
Genomic and Precision Medicine Laboratory, Department of Public Health, Wuxi School of Medicine, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
2
Guangdong Institute of Applied Biological Resources, 105 Xingang Rd. West, Guangzhou 510260, China
*
Author to whom correspondence should be addressed.
Received: 6 August 2018 / Revised: 31 August 2018 / Accepted: 6 September 2018 / Published: 13 September 2018
(This article belongs to the Section Mycotoxins)
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Abstract

Deoxynivalenol (DON) is a kind of natural pollutant belonging to the trichothecenes family. The aim of this study is to use diverse assays to evaluate oxidative damage as well as translocation of nuclear factor erythroid 2-related factor 2 (Nrf2), and to investigate their mechanisms in DON-induced toxicities on a placenta and embryo. Pregnant C57BL/6 mice were randomly assigned to three groups with different doses of DON: 0, 1.0, 2.5 mg/(kg·day). In gestation day (GD) 12.5 d and 18.5 d, DON induced an elevated resorption rate of the embryos as well as structural and functional damage of the placenta. In the placenta, altered levels of the antioxidant enzymes malondialdehyde, superoxide dismutase and glutathione indicated remarkable oxidative stress. Furthermore, an elevated level of heme oxygenase-1 (HO-1) and the translocation of Nrf2 from nucleus to cytoplasm indicated Nrf2/HO-1 pathway activation in DON-L group (1.0 mg/(kg·day)). It is noteworthy that the results in this experiment in GD 12.5 d were similar to those in GD 18.5 d. In conclusion, DON-induced placental oxidative damage and Nrf2 translocation were similar in GD 12.5 d and GD 18.5 d. Oxidative stress is one of the most important molecular mechanisms for embryotoxicity induced by DON, and Nrf2 translocation may play a substantial role against it. View Full-Text
Keywords: deoxynivalenol (DON); embryotoxicity; placenta; Nrf2 translocation deoxynivalenol (DON); embryotoxicity; placenta; Nrf2 translocation
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Yu, M.; Wei, Z.-Y.; Xu, Z.-H.; Pan, J.-Q.; Chen, J.-H. Oxidative Damage and Nrf2 Translocation Induced by Toxicities of Deoxynivalenol on the Placental and Embryo on Gestation Day 12.5 d and 18.5 d. Toxins 2018, 10, 370.

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