Responses of Glutathione-Related Antioxidant Defense System in Serum of Nile Tilapia (Oreochromis niloticus) Exposed to Sublethal Concentration of Methomyl and Recovery Pattern
文献类型: 外文期刊
作者: Meng, Shun-Long 1 ; Qu, Jian-Hong 1 ; Fan, Li-Min 1 ; Qiu, Li-Ping 1 ; Chen, Jia-Zhang 1 ; Xu, Pao 1 ;
作者机构: 1.Nanjing Agr Univ, Dept Fishery Environm Protect, Wuxi Fishery Coll, Wuxi 214081, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Sci Observing & Expt Stn Fishery Resources & Envi, Wuxi 214081, Peoples R China
关键词: methomyl;serum;tilapia;antioxidants;recovery
期刊名称:ENVIRONMENTAL TOXICOLOGY ( 影响因子:4.119; 五年影响因子:3.404 )
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收录情况: SCI
摘要: Tilapia were exposed to sublethal concentrations of 0, 0.2, 2, 20, or 200 g/L for 30 days, and then transferred to methomyl-free water for 18 days. GST, GPx, GR, GSH, and GSSG in tilapia serum were examined at 0, 6, 12, 18, 24, and 30 days after methomyl exposure and at 18 days after transferring to methomyl-free water. There were no significant changes in antioxidants activities and contents in serum of tilapia exposed to 0.2 g/L. Significant increases in GST, GR, GPx, and GSSG accompanied by a decrease in GSH were observed following methomyl exposure to 2, 20, or 200 g/L, suggesting the presence of oxidative stress. Thus, it would appear the 0.2 g/L methomyl might be considered the no observed adverse effect level. Recovery data showed that the effects produced by lower concentration of 20 g/L were reversible but not at the higher 200 g/L concentration. (c) 2013 Wiley Periodicals, Inc. Environ Toxicol 30: 483-489, 2015.
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