Alteration of Antioxidant Response and Expression of Related Genes by Cadmium in Chinese Rare Minnow Larvae

文献类型： 外文期刊

第一作者： Li, Zhi-Hua

作者： Li, Zhi-Hua;Wu, Yan-Hua;Li, Ping;Li, Yun-Feng;Ni, Zhao-Hui;Li, Zhi-Hua;Li, Ping;Wu, Yan-Hua

作者机构：

关键词： Gobiocypris rarus;Growth;Ion regulation;Oxidative stress;Physiological stress

期刊名称：CLEAN-SOIL AIR WATER （ 影响因子：1.77； 五年影响因子：1.955 ）

ISSN： 1863-0650

年卷期： 2015 年 43 卷 5 期

页码：

收录情况： SCI

摘要： In the present study, antioxidant parameters were measured in whole body of Chinese rare minnow larvae (Gobiocypris rarus) after exposure to Cd2+ (0, 0.5, and 2.5 mg/L) for four days, as well as a series of genes expression, including cortisol receptor(cr), Na+/K+-ATPase (aptase), and prolactin (prl) genes involved in ion-regulatory process, insulin-like growth factor I (igf1) and growth hormone (gh) related to growth rate, as well as heat shock protein 70(hsp70) and metallothionein(mt) used as physiological stress indices. The results showed that oxidative stress was generated in fish exposed to Cd2+ and the transcription of the cr, atpase, gh, hsp70, and mt genes increased in a dose-dependent manner, but two genes expressions, prl and igf1, showed a decrease in the treated groups. The changes in antioxidant responses and the altered genes expression in this study could provide useful information for evaluating the influence mechanisms of cadmium on fish, and could be used as potential biomarkers for monitoring Cd2+ in aquatic environment in the future.

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