Assessment of oxidative stress among refueling workers in an Egyptian setting

Rizk, Alaa A.; El‐Wahab, Ekram W. Abd; El-Marakby, Fadia A.; El-Gazzar, Ragaa M.

doi:10.1007/s11356-020-08359-2

Cited by 7 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A series of epidemiological studies showed that co-exposure to low levels of solvents could alter oxidative stress levels to different degrees. In this line, the authors found significantly lower serum SOD and GSH-Px activities in workers occupationally exposed to low levels of VOCs; including toluene and xylene (Rizk et al, 2020; Xia et al, 2017; Xiong et al, 2016), which is consistent with our results. On the other hand, CAT is an enzyme that directly contributes to antioxidant defense by neutralizing the harmful effects of free radicals (Hormozi et al, 2018b).…”

Section: Discussionsupporting

confidence: 92%

“…Previous studies have provided evidence suggesting that occupational exposure to low levels of VOCs, including benzene, toluene, ethylbenzene, and xylenes, is associated with increased levels of MDA, as well as altered levels of antioxidant enzymes activity of GPx, SOD, and CAT (Grešner et al, 2016; Moro et al, 2010; Rizk et al, 2020; Xiong et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Blood serum levels of selected biomarkers of oxidative stress among printing workers occupationally exposed to low-levels of toluene and xylene

2022

View full text Add to dashboard Cite

Printing workers (PWs) are exposed to a mixture of solvents, yet the health risks associated with such exposuer are unknown. This study aimed to compare the serum levels of selected biomarkers of oxidative stress among occupationally exposed PWs to low-level of toluene and xylenes and unexposed controls. Associations between levels of such biomarkers and occupational exposures to toluene and xylene were also investigated. Urinary levels of hippuric acid (HA) and methyl hippuric acids (MHAs) as exposure biomarkers of toluene and xylenes, respectively, and serum levels of oxidative stress biomarkers, including total antioxidant capacity (TAC), malondialdehyde (MDA), and the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), were measured among the 84 subjects, comprising 44 PWs and 40 unexposed subjects. Mean concentrations of urinary HA and MHAs of PWs showed a significant increase compared with the unexposed controls. Although levels of urinary biomarkers of exposure to toluene (HA) and xylenes (MHAs) were well below the biological exposure indices (BEIs; ACGHI), PWs presented significantly increased serum levels of MDA, and significantly decreased serum activities of SOD and GPx compared to the unexposed controls. However, for serum TAC and CAT activity, no significant difference was observed between the two groups. Correlation analyses indicated that urinary levels of HA and MHAs were positively correlated with MDA levels and negatively correlated with GPx and SOD. Our study suggested that the alterations evidenced in serum levels of MDA, SOD, and GPx could be involved in the oxidative stress caused by co-exposure to low levels of toluene and xylene. Further investigation is needed to clarify the effect of low-level occupational exposure to solvents among PWs.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Blood serum levels of selected biomarkers of oxidative stress among printing workers occupationally exposed to low-levels of toluene and xylene

2022

View full text Add to dashboard Cite

show abstract

“…The results of the study found that those who wear disposable masks at work have higher AChE activity levels than those who did not. Roughly 84.0% of the workers wore masks, which is higher than in previous studies [18,40]. This may be due to the collection of data during the Covid-19 epidemic, resulting in most people using masks more.…”

Section: Comparison Between Job Positions and Ppe Wearing With Serum ...mentioning

confidence: 69%

Comparison of acetylcholinesterase among employees based on job positions and personal protective equipment in fuel station

Polyong,

Thetkathuek

2023

Environ Anal Health Toxicol

View full text Add to dashboard Cite

The purpose of this study was to compare the levels of acetylcholinesterase (AChE) among employees based on job positions and the wearing of personal protective equipment (PPE) in fuel station areas. The sample group consisted of 200 people sorted into various groups, including (i) Inside fuel dispenser area (I-FDA) group consisting of 100 employees for refueling, cashier, and loading fuel into storage tanks, and (ii) Outside fuel dispenser area (O-FDA) group, consisting of 100 employees working in convenience stores, food stores, coffee shops, and offices, as well as general staff and car washers. Data were collected using interview questionnaires and blood samples were analyzed for AChE activity. The results showed that the I-FDA group had a significantly lower mean of serum AChE (7.38±1.73 U/ml) than the O-FDA group (7.85±1.49 U/ml) (p<0.05). The I-FDA group had a 2.43 times higher risk of abnormal serum AChE than the O-FDA group (OR=2.43, 95%CI=1.05-5.60). When considering the risk factors for job positions, it was found that refueling and cashier positions had lower AChE activity levels than those who did not (p<0.05). In the part, employees for food sales in a closed building and those wearing PPE masks had significantly higher AChE activity levels than those who did not or who wore them (p<0.05). Based on the aforementioned, employers at fuel stations should strictly determine the appropriate measures for wearing a PPE mask. Further, employees should be provided accommodation away from oil supply or enclosed buildings during breaks to reduce the effects on the neurotransmitter.

show abstract

Benchmark dose estimation based on oxidative damage in Chinese workers exposed to benzene series compounds

Guo,

Deng,

Dai

et al. 2023

Environmental Toxicology and Pharmacology

View full text Add to dashboard Cite

Assessment of oxidative stress among refueling workers in an Egyptian setting

Cited by 7 publications

References 33 publications

Blood serum levels of selected biomarkers of oxidative stress among printing workers occupationally exposed to low-levels of toluene and xylene

Blood serum levels of selected biomarkers of oxidative stress among printing workers occupationally exposed to low-levels of toluene and xylene

Comparison of acetylcholinesterase among employees based on job positions and personal protective equipment in fuel station

Benchmark dose estimation based on oxidative damage in Chinese workers exposed to benzene series compounds

Contact Info

Product

Resources

About