Combined toxicity of acetamiprid and cadmium to larval zebrafish (Danio rerio) based on metabolomic analysis
文献类型： 外文期刊
作者： Hu, Guixian 1 ; Wang, Hao 1 ; Zhu, Jiahong 1 ; Zhou, Liangliang 1 ; Li, Xue 1 ; Wang, Qiang 1 ; Wang, Yanhua 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Agro Prod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Zhejiang, Peoples R China
关键词： Cadmium; Acetamiprid; Metabolome; Combined toxicity; Larval zebrafish
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）
ISSN： 0048-9697
年卷期： 2023 年 867 卷
页码：
收录情况： SCI
摘要： Emerging contaminants, such as neonicotinoid pesticide acetamiprid (Ace), are frequently detected in the water envi-ronment, which can interact with existing heavy metal cadmium (Cd) to produce unpredicted influence. Limited stud-ies have evaluated the effects of multiple pollutant exposures on aquatic animals. Here, we characterized the joint toxicity of Ace and Cd exposure to zebrafish (Danio rerio). The results revealed that Cd and its combined exposure with Ace had an inhibitory effect on the growth of larval zebrafish and induced morphological defects. Combined ex-posure to high doses of Ace and Cd could significantly reduce the levels of TG, glucose, and pyruvate in larval zebrafish. Untargeted metabolomics revealed that Cd treatment (285) produced more differentially expressed metabolites (DEMs) than Ace treatment (115), and combined treatment produced the most DEMs (294). The KEGG pathway en-richment analysis showed that they could disrupt riboflavin metabolism, amino acid metabolism, and glycolipid me-tabolism in the larvae of D. rerio. ELISA showed that VB2, FMN, and FAD levels were significantly increased. In addition, gene expression analysis exhibited that the mRNA levels of essential genes related to glycolipid metabolism were substantially affected, such as PK, PEPckc, PPAR-alpha, and FABP6. Furthermore, targeted amino acid metabolomics confirmed that both single exposure to Cd and combined exposure to Ace and Cd altered the levels of amino acids in larvae, including ALA, ARG, MET, PRO, TYR, VAL, GLY, ORN, and PHE. Taken together, exposure to Ace and Cd, alone or in combination, exerted harmful effects on the individual development, riboflavin metabolism, glycolipid metabo-lism, and amino acid metabolism disorder of D. rerio. These findings highlighted that more attention should be paid to the compound toxicity of chemical mixtures to aquatic organisms.
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