对二甲苯对大弹涂鱼肝脏和白肌抗氧化酶活性的影响

设定对照组和3个对二甲苯浓度组(0.16,0.80,4.00μmol/L),研究不同浓度对二甲苯对大弹涂鱼肝脏、白肌组织的过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、谷胱甘肽还原酶(GR)、谷胱甘肽过氧化物酶(GPx)和抗氧化产物丙二醛(MDA)含量的影响.试验结果表明,大弹涂鱼肝脏、白肌在对二甲苯暴露下表现出不同...

Effects of p-Xylene on Antioxidant Enzymes in Liver and White Muscle of Boleophthalmus pectinirostris

The effects of different PX(p-Xylene)concentrations(4.00,0.80,and 0.16 μmol/L)on the activities of catalase(CAT),superoxide dismutase(SOD),malonaldehyde(MDA),glutathione reductase(GR)and glutathione peroxidase(GPx)in liver and white muscle of B.pectinirostris length:(12.9±0.3) cm,mass:(16.5±1.4) g] in 12 tanks at a rate of 6 individualsper tank.were studied under experimental condition at(22±1) ℃.The results showed that the antioxidative mechanism in the liver and white muscle had different responses to PX exposure.The SOD activities in liver and white muscle were both significantly increased in 0.80 μmol/L dose groups,and the same trends were also observed for GR activity.Different from SOD and GR activities,GPx activity in liver increased insignificantly,which in white muscle increased significantly.No statistical changes were found in the effects of PX exposure in different concentrations on CAT activities both in liver and white muscle.The content of MDA in liver increased significantly with the PX concentration raising,while that in white muscle increased significantly with increase in PX exposure in higher concentraion.