Evaluating the function of calcium antagonist on the Cd-induced stress in sperm of Russian sturgeon, Acipenser gueldenstaedtii
文献类型: 外文期刊
第一作者: Li, Zhi-Hua
作者: Li, Zhi-Hua;Li, Ping;Rodina, Marek;Randak, Tomas;Li, Zhi-Hua;Li, Ping
作者机构:
关键词: Verapamil;Sturgeon sperm;Motility;Velocity;Antioxidant response;Protective role
期刊名称:AQUATIC TOXICOLOGY ( 影响因子:4.964; 五年影响因子:5.071 )
ISSN: 0166-445X
年卷期: 2010 年 100 卷 4 期
页码:
收录情况: SCI
摘要: In the current study, the sperm of Russian sturgeon (Acipenser gueldenstaedtii) was used to evaluate the roles of Verapamil (VRP), a calcium channel blocker, against cadmium (Cd)-induced stress. Sturgeon sperm were exposed for 2 h at 50 mu g/L VRP, 5.0 mu g/L Cd, the mixture of 50 mu g/L VRP + 5.0 mu g/L Cd, 50 mu g/L Cd and the mixture of 50 mu g/L VRP + 50 mu g/L Cd. After exposure, the sperm motility parameters (motility and velocity), oxidative stress levels (lipid peroxidation [LPO] and carbonyl protein [CP]) and antioxidant enzyme activities (superoxide dismutase [SOD], glutathione reductase [GR], glutathione peroxidase [GPx]) were measured in sturgeon sperm. Compared to the control, Cd-induced stress was apparent as reflected by depressed motility parameters, induced oxidative stress and inhibited antioxidant enzyme activities at both Cd concentrations. In the presence of VRP, Cd-induced stress was reduced in sturgeon sperm, especially all the measured parameters in the sperm exposed at 5.0 mu g/L Cd returned to control levels, expect for the sperm motility. The present results indicate that VRP can reduce the Cd-induced stress in sturgeon sperm and suggest that using of sperm in vitro assays may provide a novel and efficient means for evaluating the effects of residual metals in the aquatic environment of sturgeon. (C) 2010 Elsevier B.V. All rights reserved.
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