Chronic toxicity of verapamil on juvenile rainbow trout (Oncorhynchus mykiss): Effects on morphological indices, hematological parameters and antioxidant responses
文献类型: 外文期刊
第一作者: Li, Zhi-Hua
作者: Li, Zhi-Hua;Velisek, Josef;Zlabek, Vladimir;Grabic, Roman;Machova, Jana;Kolarova, Jitka;Li, Ping;Randak, Tomas;Li, Zhi-Hua;Li, Ping
作者机构:
关键词: Residual pharmaceutical;Fish;Morphology;Blood indices;Oxidative stress;Integrated biomarker response
期刊名称:JOURNAL OF HAZARDOUS MATERIALS ( 影响因子:10.588; 五年影响因子:10.129 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: In this study, the toxic effects of verapamil (VRP) were studied on juvenile rainbow trout, Oncorhynchus mykiss, by chronic semi-static bioassay. Fish were exposed to sublethal concentrations of VRP (0.5,27 and 270 μg/L) for 0,21 and 42 d. Multiple biomarkers were measured, including morphological indices, hematological parameters and antioxidant responses of different tissues (brain, gill, liver, muscle and intestine). Based on the results, there was no significant change in all parameters measured in fish exposed to VRP at environmental related concentration, but VRP-induced stress in fish exposed to higher concentrations reflected the significant changes of physiological and biochemical responses. Through principal component analysis and integrated biomarker response assessment, effects induced by VRP-stress in each test group were distinguished. Additionally, all parameters measured in this study displayed various dependent patterns to VRP concentrations and exposure time using two-way ANOVA statistic analysis. In short, the multiple responses in fish indicated that VRP induced physiological stress and could be used as potential biomarkers for monitoring residual VRP in aquatic environment; but molecular and genetic mechanisms of these physiological responses in fish are not clear and need to be further studied.
分类号: TB1
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