Effect of sub acute exposure of nano Zinc particles on oxidative stress parameters in rats
Author(s):
Abstract:
Background
Zinc (Zn) is one of the most important essential elements in the body of animals and plants. Zinc plays a significant role in the structure of more than 300 different proteins and in many life supporting biochemical and metabolic processes such as cellular respiration and protection against free radicals. Nanoparticles of zinc are the new form of Zinc used in cosmetic and personal care products and also in livestock feed and food packaging.Objectives
The aim of this study was to evaluate the effects of several sizes and doses of Zinc nanoparticles on antioxidant defense system in rat compared to controls.Methods
Zinc nanoparticles (10, 20 and 30 nm) at 3 doses (3, 10 and 100 mg/kg bw) were administrated orally for 28 days among 9 experimental groups (n=5). 2 control groups were treated orally with ZnCl2 (100 mg/kg bw) and normal salin (n=5). After 28 days, the rat decapitated and serum was separated from blood samples. The ferric reducing ability of Plasma (FRAP), thiobarbituric acid reactive substances (TBARS) and activity of glutathione peroxidase (GPx), and superoxide dismutase (SOD) enzymes in serum samples were measured as biomarkers of oxidative stress and compared with control group.Results
This survey showed that zinc nanoparticles cause induction of GPx and SOD activity (P Conclusions
Nano Zinc induced oxidative stress in a dose dependent manner in large sizes, while their effects depend on the level of ionization in small sizes. Keywords:
FRAP , GPx , nano Zinc , Oxidative Stress , rat
Language:
Persian
Published:
Iranian Journal of Veterinary Medicine, Volume:11 Issue: 2, Spring 2017
Pages:
155 to 164
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