亚急性1,2-二氯乙烷染毒致小鼠肝组织氧化损伤的研究

本研究的目的是探讨亚急性1,2-二氯乙烷(1,2-DCE)中毒致肝脏氧化损伤情况,为阐明1,2-DCE中毒性肝损伤的机制提供参考依据。将昆明种小鼠随机分成对照组和不同剂量1,2-DCE染毒组(0.35、0.7、1.2 mg/L),采用静式吸入方式染毒1周;然后,取血和肝组织,分别检测血中总胆红素(TB)和谷胱甘肽(GSH)含量,肝组织中丙二醛(MDA)、GSH含量及超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)活性。结果中、高剂量染毒组小鼠的血浆中TB含量显著高于对照组小鼠;而中、高剂量染毒组小鼠的肝组织中GSH-Px活性和GSH含量及高剂量组的SOD活性显著低于对照组,高剂量染毒组小鼠的肝组织中MDA含量显著高于对照组。提示亚急性1,2-DCE中毒可引起肝组织的氧化性损伤。

Study on oxidative damage in liver of mice induced by subacute 1,2-dichloroethane exposure

Objective To explore the situation of oxidative damage in liver of mice induced by 1,2-dichloroethane(1,2-DCE)for further disclosing the mechanism of hepatotoxicity induced by 1,2-DCE.Methods Kunming mice were randomly divided into four groups:control group,low dose group,medium dose group and high dose group.Mice were exposed to 1,2-DCE using static inhalation chamber 4 h per day for 7 days.Then,take blood and liver for measuring blood levels of total bilirubin and GSH,activities of SOD and GSH-Px and cont...