Effect of Zinc, Selenium and their Combination on Cadmium- Induced Oxidative Stress in Rat Kidney-A Molecular Study

Document Type : Original Article

Authors

Biochemistry Department, Faculty of Veterinary Medicine, Zagazig University, 44511, Egypt

Abstract

Cadmium (Cd) is considered as   a very toxic heavy metal which transfers to the body through many routes as food, water and air. Zinc (Zn) and selenium (Se) have a great role in alleviation of Cd toxicity in kidneys. This study aimed to look into the interaction between Cd, Zn, Se and their effects on gene expression of the antioxidant enzymes in the kidneys of rats. Fifty male adult albino rats were divided into five groups (n=10) that received orally the following doses daily for one month: Group I: control group received normal saline, Group II: received 2mg/kg BW CdCl2, Group ΠI: was administered 2mg/kg CdCl2 and 2mg/kg ZnCl2, Group IV: received 2 mg/kg CdCl2 and 0.23 mg/kg Na2Seo3, and Group V: received 2 mg/kg CdCl2, 2 mg/kg ZnCl2 and 0.23 mg/kg Na2Seo3). The gene expression levels of SOD1, CAT, GPx, HSP70 and MT1 were assessed in the kidneys; treatment with Cd lowered the expression of antioxidant enzymes (SOD1, CAT, and GPx) and increased the expression level of HSP70 and MT1. Only partial ameliorative effects on the oxidative stress caused by Cd in the kidney have been observed with Se or Zn supplementation during exposure to Cd, while the co-treated with Se and Zn revealed better protection against the observed oxidative stress in kidney.

Keywords

Main Subjects

Files

Share

How to cite

Statistics