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Relationships between perceived workload, stress and oxidative DNA damage

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Objectives: The present study was performed to investigate the relationship between work-related factors, including psychological stress, and the formation of a type of oxidative DNA damage, 8-hydroxydeoxyguanosine (8-OH-dG), in order to examine their possible risk factor for occupational carcinogenesis. Methods: A total of 54 healthy workers (27 male and 27 female, aged 41.2 ± 12.5 years) in a company were investigated for 8-OH-dG levels in the peripheral blood leukocytes at the time of a questionnaire survey regarding several factors, such as working hours, workload, fatigue, sleep, psychological stress and the prospect of alleviating it. Subjects were limited to non-smoking and non-drinking workers to exclude the influence of cigarette smoking and alcohol drinking, which have been reported to have associations with the formation of 8-OH-dG. Results: The levels of 8-OH-dG in female subjects were significantly related to the perceived workload (F=5.56, P=0.010), the perceived psychological stress (F=6.15, P=0.007), and the impossibility of alleviating stress (F=3.82, P=0.048). No associations were observed in male subjects. Conclusions: Psychological stress and perceived overwork appear to be related to the pathogenesis of cancer via the formation of 8-OH-dG, particularly in female workers.

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Received: 9 December 1999 / Accepted: 11 October 2000

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Irie, M., Asami, S., Nagata, S. et al. Relationships between perceived workload, stress and oxidative DNA damage. Int Arch Occup Environ Health 74, 153–157 (2001). https://doi.org/10.1007/s004200000209

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  • DOI: https://doi.org/10.1007/s004200000209

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