Alteration of Oxidative Status in Rats Following Administration of Acrylamide

Abstract

Introduction: Acrylamide (ACR) is a known industrial neurotoxic and carcinogenic chemical in rodents. The recent discovery of acrylamide in wide variety of commonly consumed foods has energized research efforts worldwide to define toxic mechanisms. Objective: The present study is carried out to investigate the effect of acrylamide administration on in vivo malondialdehyde (MDA, a product of lipid peroxidation), reduced glutathione (GSH) as well as copper and zinc superoxide dismutase enzyme activity (Cu/Zn SOD) of rats. Material and Methods: Fourteen adult male Sprague Dawley rats were divided into two groups each containing 7 rats. Group 1 served as negative control fed on basal diet and group 2 (positive control) received basal diet and acrylamide (0.34g/ kg diet) for 11 days. Levels of MDA, GSH and activity of SOD were determined in liver, kidneys, brain, heart, testes, spleen and lungs of rats. Results: ACR treatment significantly increased MDA in all organs; the highest increase was detected in testis (87.9%) and heart (71.5%) while the lowest one was found in kidneys (28.2%). On the other hand, GSH levels and SOD activities were significantly reduced in ACR treated rats. However, the reduction of GSH level ranged from 10.2% to 36.5 %.The inhibition of SOD activities were higher in testis (57.3%) and lungs (38.5%). Conclusion: The present study showed that ACR exerts deteriorated effects on oxidative