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Combined impacts of microplastics and cadmium on the liver function, immune response, and intestinal microbiota of crucian carp (Carassius carassius)

文献类型： 外文期刊

作者： Wei, Wei 1 ; Yang, Qiufeng 1 ; Xiang, Dan 1 ; Chen, Xiaoyun 1 ; Wen, Zhengrong 1 ; Wang, Xiaofu 1 ; Xu, Xiaoli 1 ; Peng, Cheng 1 ; Yang, Lei 1 ; Luo, Mingzhong 2 ; Xu, Junfeng 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Key Lab Traceabil Agr Genet Modified Organisms, Minist Agr & Rural Affairs, Hangzhou 310021, Peoples R China

2.Yangtze Univ, Coll Anim Sci, Engn Res Ctr Ecol & Agr Use Wetland, Hubei Key Lab Waterlogging Disaster & Agr Use Wetl, Jingzhou 434025, Peoples R China

关键词： Microplastics; Cadmium; Liver function; Immune response; Intestinal microbiota

期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.8； 五年影响因子：6.9 ）

ISSN： 0147-6513

年卷期： 2023 年 261 卷

页码：

收录情况： SCI

摘要： Microplastics (MPs) and the heavy metal cadmium (Cd) have attracted global attention for their toxicological interactions in aquatic organisms. The purpose of this investigation was evaluating the effect of MPs (1 mg L-1) and Cd (5 mg L-1) on the liver function, immune response of crucian carp (Carassius carassius) after 96 h exposure, and intestinal microbiota after 21 days, respectively. Co-exposure to MPs and Cd significantly enhanced MP accumulation in the liver of the crucian carp compared to the accumulation with exposure to MPs alone. Co-exposure to MPs and Cd triggered notable histopathological alterations accompanied by increased hepatic cell necrosis and inflammation, and was associated with higher aspartate aminotransferase and alanine aminotransferase levels, lower superoxide dismutase and catalase activity levels, but higher malondialdehyde content and total antioxidant capacity in the liver. Moreover, the combined treatment of MPs and Cd led to the up-regulated transcription of genes related to immune response, such as interleukin 8 (il-8), il-10, il-1 & beta;, tumor necrosis factor-& alpha;, and heat shock protein 70, both in the liver and spleen. Co-exposure to MPs and Cd reduced the variety and abundance of the intestinal microbiota in the crucian carp. Our research indicates that the combined exposure to MPs and Cd may exert synergistic toxic effects on crucian carp, which could impede the sustainable growth of the aquaculture industry and pose potential risks to food safety.

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