三丁基锡对小鼠脏器组织总氧自由基清除能力的影响

Effect of Tri-n-butyltin on Total Oxyradical Scavenging Capacity in Mice Viscera Tissues

目的探讨三丁基锡(TBT)对小鼠脏器组织的氧化应激的影响。方法雄性NIH小鼠24只,按体重随机分为8组,每组3只。以13%乙醇配制TBT,按照生理盐水、13%乙醇和10、20、40、80、160、320mg/kg体重的TBT灌胃给药,灌胃染毒24h,测定心、脑、肺、肝、肾组织匀浆液的总氧自由基清除能力(TOSC)。结果小鼠所有脏器组织的TOSC值均呈上升趋势,其中心、脑的变化显著,各剂量组与对照组比较均有统计学意义(P<0.05或P<0.01),TBT剂量与TOSC的相关系数均为正值。结论24hTBT染毒对小鼠的抗氧化能力影响呈正调作用。

Objective To investigate the oxidative stress caused by tri-n-butyltin (TBT) in mice. Methods 24 male NIH mice were chosen and the different doses of TBT were given per os for 24 h acute toxic test, meanwhile set the control group of 0.9% sodium chloride and 13% ethanol. The TOSC of heart, brain, lung, liver and kidney homogenates were detected by gas chromatography. Results After 24 h TBT exposure, TOSC of all viscera tissues was increased and this change was significant in the heart and brain, in every dose level, compared with the control (P<0.05 or P<0.01). The related coefficient was positive. Conclusion TBT up-regulates antioxidative capability of mice in 24 h acute toxic test.