Exposure to fungi had a significant effect on AFM1 measurements and tumor biomarkers, especially in allergic textile workers (with the exception of the arginase biomarker), though results were generally within normal limits.
Aim: The study aimed to estimate oxidative role of aflatoxin B1 (AFB1) on the liver in wheat milling workers. Materials and Methods:Case-control study was conducted to compare between the levels of AFB1/albumin (AFB1/alb), liver enzymes (ALT, AST, GGT, and ALP), P53, MDA, GST, SOD, zinc and vitamin C in 35 wheat milling workers and 40 control subjects.Results: Statistical analysis revealed that ALT, AST, GGT, ALP, P53, MDA, GST and SOD in workers were significantly elevated compared to their controls. In the milling workers, there were significant correlations between MDA levels and the levels of AST, GGT, and P53, while, P53 was inversely correlated with GST and SOD activities. There were significant correlations between Zn levels and GGT, GST and SOD activities, between vitamin C and GST activities, and vitamin C inversely correlated with MDA. Conclusion:The present study concluded that the oxidative stress of AFB1 elevated the MDA and the liver enzymes in wheat milling workers. GST has a crucial role in the detoxification of aflatoxin and SOD as a scavenger antioxidant increased in the workers to overcome the oxidative toxic effects of AFB1 on the liver of the workers, and roles of Zn and vitamin C were significant in activation of these processes.
Background Aflatoxin B1 (AFB1) is classified as a Group I carcinogen. A Previous study found that oxidative stress from the metabolism of AFB1 induced hepatotoxic effects in wheat miller workers. Zinc and vitamin C may play a significant role in the activation of detoxification and overcoming the oxidative stress of AFB1. Objectives A prospective clinical trial was designed to evaluate the role of zinc and vitamin C oral supplementation on the oxidant-antioxidant status and the hepatotoxic effects of AFB1 in wheat miller workers. Methods Liver enzymes (ALT, AST, ALP, and GGT), P53 protein, malondialdehyde (MDA), glutathione S transferase (GST), Superoxide dismutase (SOD), zinc and vitamin C were estimated in 35 wheat miller workers before and after zinc and vitamin C supplementation for 1 month. Results The results revealed that zinc and vitamin C were significantly increased after the one-month supplementation, while liver enzymes (AST, ALP, and GGT), MDA, and GST of the workers were significantly decreased. SOD and P53 were also decreased but not to a significant level; SOD was decreased in 56% and P53 was decreased in 58% of the total workers. Conclusions Zinc and vitamin C oral supplementation for 1 month had an ameliorative effect on the hepatotoxicity of AFB1 in wheat miller workers, through decreasing MDA, SOD, and GST levels that in turn led to an improvement in their liver enzymes. Further study on a larger scale is needed to confirm these results.
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