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《Journal of Hygiene Research》 2002-04
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Combined effect of lead and cadmium on lipid peroxidation in renal tubular epithelial cells of rats

Wang Xueqian,Yin Xianren,Bai Xuetao Institute of Environmental Health Monitoring,Chinese Academy of Preventive Medicine, Beijing 100021, China  
In order to observe the combined effects of lead and cadmium on lipid peroxidation,the cultured renal tubular epithelial cells (TEC) of rats are used to perform 3×3 factorial experimental design. In the experimental group (A-H), rats are given lead and cadmium respectively for 6 hours at different concentrations (A: lead acetate 0.02mmol/L; B: lead acetate 0.1mmol/L; C: cadmium chloride 0.001mmol/L; D: cadmium chloride 0.004mmol/L; E: lead acetate 0.02mmol/L+cadmium chloride 0.001mmol/L; F: lead acetate 0.02mmol/L+cadmium chloride 0.004mmol/L; G: lead acetate 0.1mmol/L+cadmium chloride 0.001mmol/L; H: lead acetate 0.1mmol/L+ cadmium chloride 0.004mmol/L). After TEC are smashed by supersonic,the concentrations of glutathione (GSH) and malondiadehyde (MDA) in cells are analyzed. The same analysis is also done for the determination of the activity of glutathione peroxidase(GSH-Px) and superoxide dismutase(SOD). In comparison with control group,significant decrease in activities of GSH、GSH-Px、SOD in cells treated with lead and cadmium and increases of MDA are observed. The data from ANOVA analysis show that the interaction between lead and cadmium on GSH, MDA, and SOD in TEC (P0.05) is demonstrated while no interaction on GSH-Px is shown.
【CateGory Index】: R99
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