ArticleToxicology reports2024
Investigating the effects of co-exposure to noise and benzene on serum oxidative stress in rat.
Article in Toxicology reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Occupational exposures are generally complex, workers are exposed with more than one hazardous agent in work environment. Combined exposure to noise and benzene is common in occupational environments. Sub-acute exposure to benzene vapors can induce oxidative stress in serum. Additionally, noise exposure leads to non-auditory effects, such as oxidative stress. However, In the authors' research scope, a study aimed at investigating the effect of co-exposure to noise and benzene on the oxidative stress of rat serum has not been found. The purpose of this study is to investigate the effect of co-exposure to noise and benzene on oxidative stress. In this study, 24 Wistar albino male rats were divided into four groups: the control group (1), the group exposed to white noise with an intensity of 100 dB and a frequency of 250-8KHz (2), the group exposed to benzene vapors with a concentration of 300 PPM (3), and the group co-exposed to white noise with an intensity of 100 dB and benzene vapors with a concentration of 300 PPM. Oxidative stress induced was investigated by serum oxidative stress indices, including lipid peroxidation (MDA), total oxidative capacity (TOS), and antioxidant activity indices (SOD) and (GSH), as well as total antioxidant capacity (TAC).The results showed that exposure to noise and benzene, both separately and combined, can lead to oxidative stress in rat serum, increasing serum oxidant indices MDA and TOS while decreasing serum antioxidant indices TAC, SOD, and GSH was detected in groups exposed to noise and benzene. The findings indicate that the serum oxidative stress caused by the co- exposure to noise and benzene is significantly higher than separate exposure to noise or benzene, also Co-exposure to noise and benzene can have an almost additive effect on increasing serum oxidative stress in rats. This study highlights the importance of studying co-exposure to physical and chemical hazardous agents in the work environment.
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