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Combined toxicity assessment of a naturally occurring toxin and a triazole fungicide on different biological processes through toxicogenomic data mining with mixtures

文献类型： 外文期刊

作者： Wang, Ruike 1 ; Liu, Na 1 ; Huang, Nan 1 ; Shu, Fang 1 ; Lou, Yancen 2 ; Zhang, Shuai 2 ; Zhu, Hongmei 2 ; Chen, Chen 1 ;

作者机构： 1.Shandong Univ, Cheeloo Coll Med, Sch Publ Hlth, Jinan 250012, Shandong, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Qual & Stand Agroprod, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Zhejiang, Peoples R China

关键词： Citrinin; Triadimefon; Combined toxicology; Interaction; Biological processes

期刊名称：PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY （ 影响因子：4.7； 五年影响因子：4.7 ）

ISSN： 0048-3575

年卷期： 2023 年 193 卷

页码：

收录情况： SCI

摘要： Fungicides are widely used to prevent fungal growth and reduce mycotoxin contamination in food, which provides the opportunity for the co-occurrence of mycotoxins and fungicide residues in food and poses a greater risk to human health. To assess the combined effects of a naturally occurring mycotoxin, citrinin (CIT), and a widely used triazole fungicide, triadimefon (TAD) on different biological processes, the comparative tox-icogenomics database was used to obtain phenotypes and response genes for CIT or TAD exposure. Then indi-vidual and combined exposure models were developed with zebrafish embryos, and the interaction between CIT and TAD was analyzed using the 2 x 2 factorial design approach to observe the toxic effects. Through data mining analysis, our results showed that CIT or TAD exposure is related to different biological phenotypes, such as cell death, regulation of antioxidant systems, and thyroid hormone metabolism. Our results also showed that CIT (4-day LC50 value of 12.7 mg/L) exposure possessed higher toxicity to zebrafish embryos compared with TAD (4-day LC50 value of 29.6 mg/L). Meanwhile, individual exposure to CIT and TAD altered the expression levels of biomarkers related to oxidative stress, inflammation, apoptosis and hypothalamic-pituitary-thyroid (HPT) axis. Notably, combined exposure to CIT and TAD induced changes in the mentioned biological processes and had an interactive effect on the expression of multiple biomarkers. In conclusion, we evaluated the toxic effects of CIT and TAD in isolation and combination by in-vivo experiments, which provide a new methodological basis and reference for future risk assessment and setting of safety limits for foodborne toxicants.

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