alexa Protective Effects of Vitamin C against Methomyl-Induced Injures on the Testicular Antioxidant Status and Apoptosis-Related Gene Expression in Rat | OMICS International| Abstract
ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
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  • Research Article   
  • J Environ Anal Toxicol 2014, Vol 5(2): 255
  • DOI: 10.4172/2161-0525.1000255

Protective Effects of Vitamin C against Methomyl-Induced Injures on the Testicular Antioxidant Status and Apoptosis-Related Gene Expression in Rat

Tarek M Heikal1*, Abdel-Tawab H Mossa1 and Wagdy KB Khalil2
1Environmental Toxicology Research Unit (ETRU), Pesticide Chemistry Department, National Research Centre, , Cairo, Egypt
2Cell Biology Department, National Research Center, , Dokki, Giza, Egypt
*Corresponding Author : Tarek M Heikal, Environmental Toxicology Research Unit (ETRU), Pesticide Chemistry Department, National Research Centre, Tahrir Street, P.O. Box 12311, Dokki, Cairo, Egypt, Tel: +2 01002591307, Fax: (202)-33370931, Email: [email protected]

Received Date: Nov 20, 2014 / Accepted Date: Dec 11, 2014 / Published Date: Dec 12, 2014

Abstract

The present study is undertaken to evaluate the protective effects of vitamin C (VC) against methomyl-induced oxidative stress and testicular injures in Wister rat. Male rats were randomly divided into 4 groups of 6 rats each. The route of application selected for the study was oral gavage for 28 consecutive days. Group 1 was served as a control, whereas group 2 was supplemented with VC (200 mg kg-1 body weight, bw). Group 3 was administered with a dose of methomyl equivalent to 1/10 LD50 (2.034 mg kg-1 bw), whereas group 4 was co-administered VC and methomyl as the same dose of groups 2 and 3, respectively. Sub-acute exposure of rats to methomyl for 28 consecutive days resulted in a significant increase in testicular lipid peroxidation (LPO) and a decrease in glutathione (GSH) level. In addition, the testicular activities of catalase (CAT), superoxide dismutase (SOD) and glutathione-S-transferase (GST) enzymes were significantly decline in response to methomyl exposure. Furthermore, histopathological studies in testis of rats treated with methomyl exhibited incomplete spermatogenic series in seminiferous tubules and necrosis of spermatogoneal cells lining seminiferous tubules. Notably, the co-administration of VC modulated the biochemical parameters and the intensity of histopathological findings. The effect of VC on transcriptional activity of four key stress and apoptosisrelated genes (CASP3, CASP9, Tp53 and Bcl2), in response to methomyl exposure in rats, was investigated. Results revealed a significant up-regulation in the level of the expression for the tested genes, however supplementation of VC to methomyl-treated rats modulated the observed significant up-regulation in the level of the expression for those genes, indicative of an protective interfering role in the signaling transduction process of methomyl-mediated toxicity. In conclusion, these data suggested that administration of VC may partially protect against methomyl induced testicular oxidative damage and apoptosis-related genes.

Keywords: Gene expression; Methomyl; Oxidative damage; Rat; Testis; Vitamin C

Citation: Heikal TM, Mossa ATH, Khalil WKB (2014) Protective Effects of Vitamin C against Methomyl-Induced Injures on the Testicular Antioxidant Status and Apoptosis-Related Gene Expression in Rat. J Environ Anal Toxicol 4:255. Doi: 10.4172/2161-0525.1000255

Copyright: © 2014 Heikal TM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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