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. 2024 Jan;202(1):319-331.
doi: 10.1007/s12011-023-03654-8. Epub 2023 Apr 5.

A study on the effectiveness of sodium selenite in treating cadmium and perfluoro octane sulfonic (PFOS) poisoned zebrafish (Danio rerio)

Wang Lu  1   2 , Waqas Ahmed  1   2 , Mohsin Mahmood  1   2 , Ou Wenjie  1   2 , Li Jiannan  1   2 , Wang Yunting  1   2 , Yang Jie  1   2 , Xu Wenxin  1   2 , Fu Xiuxian  1   2 , Hongwei Zhao  1   2 , Wenjie Liu  1   2 , Weidong Li  3   4 , Sajid Mehmood  5   6
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A study on the effectiveness of sodium selenite in treating cadmium and perfluoro octane sulfonic (PFOS) poisoned zebrafish (Danio rerio)

Wang Lu et al. Biol Trace Elem Res. 2024 Jan.

Abstract

Perfluoro octane sulfonate (PFOS) and cadmium (Cd) are toxic elements in the environment. As a micronutrient trace element, selenium (Se) can mitigate the adverse effects induced by PFOS and Cd. However, few studies have examined the correlation between Se, PFOS and Cd in fish. The present study focused on the antagonistic effects of Se on PFOS+Cd-induced accumulation in the liver of zebrafish. The fish was exposed to PFOS (0.08mg/L), Cd (1mg/L), PFOS+ Cd (0.08 mg/L PFOS+1 mg/L Cd), L-Se (0.07mg/L Sodium selenite +0.08mg/L PFOS+1mg/L Cd), M-Se (0.35mg/L Sodium selenite + 0.08mg/L PFOS+ 1 mg/L Cd), H-Se (1.75 mg/L Sodium selenite + 0.08 mg/L PFOS+ 1mg/L Cd) for 14d. The addition of selenium to fish exposed to PFOS and Cd has been found to have significant positive effects. Specifically, selenium treatments can alleviate the adverse effects of PFOS and Cd on fish growth, with a 23.10% improvement observed with the addition of T6 compared to T4. In addition, selenium can alleviate the negative effects of PFOS and Cd on antioxidant enzymes in zebrafish liver, thus reducing the liver toxicity caused by PFOS and Cd. Overall, the supplementation of selenium can reduce the health risks to fish and mitigate the injuries caused by PFOS and Cd in zebrafish.

Keywords: Cadmium; Fish; Perfluoro octane sulfonate; Selenium; Toxic elements.

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