Abstract
BPA is so ubiquitous that 27 million tons of BPA-containing plastic, including mineral water bottles and baby bottles, is produced worldwide each year. The potential toxicity of BPA to humans and aquatic organisms has been the subject of intense research. In this study, a zebrafish model system was used to assess BPA-mediated hepatotoxicity. Zebrafish larvae at 72-144 hpf were exposed to BPA at different concentrations (0,1, 3 and 5mg/L). For example, BPA-treated zebrafish larvae showed increased mortality, delayed uptake of nutrients in yolk sac, shortened body length, smaller liver area, abnormal expression of genes related to liver development, and pathological changes in the liver tissue. Mechanistically, BPA exposure induced excessive oxidative stress in the liver of zebrafish and increased the level of hepatocyte apoptosis in zebrafish larvae, and the antioxidant astaxanthin could rescue the BPA-mediated liver toxicity.
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Funding
This work was supported by the National Key R&D Program of China (2018YFA0801000), the National Natural Science Foundation of China (32170853; 20212ACB205007; No. 81960101), the Science and Technology Foundation of the Education Department of Jiangxi Province (GJJ201002), and Jiangxi Province Health Committee Research Project (202211240).
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Ying Wang: Writing – original draft, Methodology, Resources, Writing – review & editing. Jie Wu: Methodology, Supervision. Dagang Wang: Software, Validation, Methodology. Mengqi Wan: Methodology, Supervision. Xue Li: Methodology, Supervision.Li Zhang: Software, Resources. Dou Yang: Software, Resources. Fasheng Liu: Validation, Methodology. Methodology,Jiejun Liu: Validation, Methodology.Keao Li: Validation, Methodology. Shouhua Zhang: Conceptualization, Methodology, Resources, Writing – review & editing,Resources, Supervision.Huiqiang Lu: Conceptualization, Methodology, Resources, Supervision.
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All fish were raised and maintained under standard laboratory conditions in accordance with the Guidelines of Experimental Animal Welfare from Ministry of Science and Technology of People’s Republic of China (2006) and the Institutional Animal Care and Use Committee protocols from Jinggangshan University (2016).
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Wang, Y., Wu, J., Wang, D. et al. BPA induces hepatotoxicity in zebrafish through oxidative stress and apoptosis pathways. Fish Physiol Biochem 50, 403–412 (2024). https://doi.org/10.1007/s10695-023-01284-4
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DOI: https://doi.org/10.1007/s10695-023-01284-4