Oxidative Damage in Lymphocytes of Copper Smelter Workers Correlated to Higher Levels of Excreted Arsenic
Figure 3
Comparative levels of vitamin E in plasma samples from low- and high-exposure human populations and correlation between plasma vitamin E concentration and urinary excretion of As from highly As-exposed population. (a) Vitamin E concentration profile in the plasma of the low-As-exposure group () and the high-As-exposure group (). The statistical analysis indicates significant differences between the two groups (U-Mann-Whitney test ). (b) Relationship between plasma vitamin E concentration (μM) and As concentration in urine (ppm) from the highly exposed population. The relationship between the two variables was determined by -Pearson ().