Alpha-tocopherol ameliorates cypermethrin-induced toxicity and oxidative stress in the nematode Caenorhabdtis elegans |
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Authors: | Shashikumar Shivaiah Rajini P S |
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Affiliation: | Food Protectants and Infestation Control Department, Central Food Technological Research Institute (CFTRI, CSIR), Mysore 570 020, India. |
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Abstract: | Oxidative stress and other effects induced by cypermethrin (CYP, 15 mM) and their amelioration by alpha-tocopherol (400 microM) was studied in the nematode Caenorhabditis elegans. The worms exposed for 4 h to CYP showed increased levels of reactive oxygen species (46%), H2O2 (37%) and protein carbonyls (29%), accompanied by decreased lifespan and brood size. However, exposure to both CYP and alpha-tocopherol resulted in diminution of above alterations with the worms exhibiting relatively lower levels of ROS (30%), H2O2 (15%), protein carbonyls (14%), altered antioxidant enzyme activities and normal lifespan and brood size. The results suggest that CYP induces oxidative stress in C. elegans and the strategy of intervention with alpha-tocopherol could be exploited to offset this induced oxidative stress. |
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