| چکیده انگلیسی مقاله |
The effects of cadmium and lead on human erythrocyte acetylcholinesterase activity were studied. Blood used in this study was obtained from 24 healthy individuals, then after hemolysation, treated with 3 various concentrations of cadmium and lead. A strong inhibition of acetylcholinesterase was noted in treated samples by cadmium and lead. The remaining activity In the case of lead, the remaining activity was found to be 81% with the highest concentration , S7% with the middle and 94% with the lowest one (30 fi g/dl, p<0.05). Cadmium showed a nearly linear correlation between doses used and decrease in activity (r- = 0.S3), lead showed a better correlation (r- = 0.92). The direct effect of metal ions on AChE, i.e. a decrease in quantity of the enzyme, may be a proposed mechanism for this depression. |
