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Toxics 2017, 5(4), 37; doi:10.3390/toxics5040037

Zinc Ameliorate Oxidative Stress and Hormonal Disturbance Induced by Methomyl, Abamectin, and Their Mixture in Male Rats

1
Environmental Toxicology Research Unit (ETRU), Pesticide Chemistry Department, National Research Centre, Dokki, Giza 12311, Egypt
2
Department of Pest Control and Environmental Protection, Faculty of Agriculture, Damanhour University, Behira, Egypt
*
Author to whom correspondence should be addressed.
Academic Editors: Kathleen Lewis and John Tzilivakis
Received: 7 November 2017 / Revised: 28 November 2017 / Accepted: 30 November 2017 / Published: 3 December 2017
(This article belongs to the Special Issue Pesticide Environmental Risk Assessments)
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Abstract

Exposure to mixtures of toxicants (e.g., pesticides) is common in real life and a subject of current concern. The present investigation was undertaken to assess some toxicological effects in male rats following exposure to methomyl (MET), abamectin (ABM), and their combination (MET+ABM), and to evaluate the ameliorative effect of zinc co-administration. Three groups of rats were designated for MET, ABM, and the mixture treatments. Three other groups were designated for zinc in conjunction with the pesticides. Additionally, one group received water only (control), and the other represented a positive zinc treatment. The obtained results revealed that MET was acutely more toxic than ABM. The tested pesticides induced significant elevation in lipid peroxidation and catalase levels, while declined the levels of the other tested parameters e.g., Superoxide dismutase (SOD), Glutathione-S-transferase (GST), Glutathione peroxidase (GPx), Glutathione reductase (GR), Cytochrome P450 (CYP450), testosterone, and thyroxine). Biochemical alterations induced by the mixture were greater than those recorded for each of the individual insecticides. The joint action analysis, based on the obtained biochemical data, revealed the dominance of antagonistic action among MET and ABM. Zinc supplementation achieved noticeable ameliorative effects. It was concluded that zinc may act as a powerful antioxidant, especially in individuals who are occupationally exposed daily to low doses of such pesticides. View Full-Text
Keywords: methomyl; abamectin; methomyl+abamectinmixture; zinc; joint action; amelioration index methomyl; abamectin; methomyl+abamectinmixture; zinc; joint action; amelioration index
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Mansour, S.A.; Abbassy, M.A.; Shaldam, H.A. Zinc Ameliorate Oxidative Stress and Hormonal Disturbance Induced by Methomyl, Abamectin, and Their Mixture in Male Rats. Toxics 2017, 5, 37.

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