EFFECT OF PESTICIDES ON RAT (Rattus norvegicus) ERYTHROCYTES ANTIOXIDANT ENZYMES IN VITRO
2014
In the last century, maximum in herbicide production was achieved. Growing use of herbicides initiated the need for continuous evaluation of damaging effects of herbicides on human health and environment. Paraquat is the trade name for N,N′-dimethyl-4,4′-bipyridinium dichloride and one of the most widely used herbicides in the world. Although mechanism of paraquat toxicity remains undefined, a great portion of toxicity is attributed to the process of redox cycling. In this research, rat erythrocytes were exposed to various paraquat concentrations (0, 0.25, 0.5, 0.75, 1.25 mM). Changes in antioxidant enzymes activity, catalase and superoxide dismutase were determined, and also the activity of erythrocyte acetylcholinesterase. Obtained results show damaging effects of paraquat on erythrocytes due to oxidative stress.
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