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Toxicity and accumulation of zinc pyrithione in the liver and kidneys of Carassius auratus gibelio: association with P-glycoprotein expression

文献类型： 外文期刊

作者： Ren, Tao 1 ; Fu, Gui-Hong 2 ; Liu, Teng-Fei 1 ; Hu, Kun 1 ; Li, Hao-Ran 1 ; Fang, Wen-Hong 2 ; Yang, Xian-Le 1 ;

作者机构： 1.Shanghai Ocean Univ, Natl Pathogen Collect Ctr Aquat Anim, 999 Hucheng Huan Rd, Shanghai 201306, Peoples R China

2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 201306, Peoples R China

关键词： Zinc pyrithione; Carassius auratus gibelio; Acute toxicity; Tissue accumulation; P-glycoprotein

期刊名称：FISH PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：2.794； 五年影响因子：2.876 ）

ISSN： 0920-1742

年卷期： 2017 年 43 卷 1 期

页码：

收录情况： SCI

摘要： Zinc pyrithione (ZPT) is a broad-spectrum antibacterial and antifungal agent; therefore, it is widely used in industry and civilian life. It is discharged into the aquatic environment with industrial and civilian waste water. Carassius sp. is one of the most widely distributed and farmed fish in China. The effects of aquatic ZPT on Carassius sp. remain unknown. In this study, we determined the acute toxicity of ZPT on Carassius sp. The results showed that the median lethal concentration (LC50 96 h) of ZPT on Carassius sp. cultivated in freshwater or water with 1.5 or 3 aEuro degrees salinity was 0.163, 0.126, and 0.113 mg/L, respectively. ZPT has a higher affinity to the liver than the kidney, with a prolonged tissue residual time. P-glycoprotein (P-gp), an ATP-binding cassette transporter, was found to be induced in the liver and kidney tissues of these Carassius spp. after ZPT treatment, based on the determination of its mRNA and protein levels by quantitative real-time reverse transcription polymerase chain reaction and immunohistochemistry, respectively. The ZPT accumulation and magnitude of P-gp induction were also affected by the salinity of the cultivation water. These results suggest that aquatic ZPT is potentially toxic to Carassius sp. We speculate that P-gp induction may play a protective role for Carassius sp. Our findings provide a basis for assessing the potential risk of ZPT to aquatic animals including Carassius sp.

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