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• W3199238040 endingPage "112783" @default.
• W3199238040 startingPage "112783" @default.
• W3199238040 abstract "Sudan I is one of the industry dyes and widely used in cosmetics, wax agent, solvent and textile. Sudan I has multiple toxicity such as carcinogenicity, mutagenicity, genotoxicity and oxidative damage. However, Sudan I has been illegally used as colorant in food products, triggering worldwide attention about food safety. Nevertheless, the toxicity of Sudan I on reproduction, particularly on oocyte maturation is still unclear. In the present study, using mouse in vivo models, we report the toxicity effects of Sudan I on mouse oocyte. The results reflect that Sudan I exposure disrupts spindle organization and chromosomes alignment as well as cortical actin distribution, thus leading to the failure of polar body extrusion. Based on the transcriptome results, it is found that the exposure of Sudan I leads to the change in expression of 764 genes. Moreover, it’s further reflected that the damaging effects of Sudan I are mediated by the destruction of mitochondrial functions, which induces the accumulated ROS to stimulate oxidative stress-induced apoptosis. As an endogenous hormone, melatonin within the ovarian follicle plays function on improving oocyte quality and female reproduction by efficiently suppressing oxidative stress. Moreover, melatonin supplementation also improves oocyte quality and increases fertilization rate during in vitro culture. Consistent with these, we find that in vivo supplementation of melatonin efficaciously suppresses mitochondrial dysfunction and the accompanying apoptosis, thus reverses oocyte meiotic deteriorations. Collectively, our results prove the reproduction toxicity of Sudan I for the exposure of Sudan I reduces the oocyte quality, and demonstrate the protective effects of melatonin against Sudan I-induced meiotic deteriorations. • Sudan I exposure compromises oocyte quality in mice. • Sudan I exposure disturbs meiotic spindle organization and actin assembly. • Sudan I exposure increases mitochondrial dysfunction, leading to oxidative stress. • An antioxidant, melatonin, recovers meiotic maturation of Sudan I-exposed oocytes." @default.
• W3199238040 created "2021-09-27" @default.
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• W3199238040 date "2021-12-01" @default.
• W3199238040 modified "2023-10-15" @default.
• W3199238040 title "Melatonin reverses mitochondria dysfunction and oxidative stress-induced apoptosis of Sudan I-exposed mouse oocytes" @default.
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• W3199238040 doi "https://doi.org/10.1016/j.ecoenv.2021.112783" @default.
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• W3199238040 hasPublicationYear "2021" @default.
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