| ORIGINAL ARTICLE |
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| Year : 2020 | Volume
: 11
| Issue : 1 | Page : 164 |
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Assessment of oxidative DNA damages in radiography staff via evaluation of its urinary biomarker (8-hydroxy2-deoxyguanosine)
Azam Salehi1, Karim Ebrahimpour2, Farhad Forouharmajd3, Maryam Zarean4
1 Student Research Committee, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
3 Department of Occupational Health Engineering, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
4 Department of Environmental Health, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
Correspondence Address:
Farhad Forouharmajd
Department of Occupational Health Engineering, School of Public Health, Isfahan University of Medical Sciences, Isfahan
Iran
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/ijpvm.IJPVM_44_19
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Background: Studies have shown that one of the most important complications of exposure to ionizing radiation is the emergence of cancer tumors, as a result of oxidative DNA. Since different radiography groups have high rate of exposure to ionizing radiation, examining the susceptibility rate of cancer in these groups is of prime importance. Therefore, the present study was conducted to measure the level of 8-hydroxy2-deoxyguanosine(8-OHdG) in the radiographers' urine as a biomarker of oxidative damage while comparing it with the nonradiography staff. Methods: Samples of two groups were selected for this case-control study, wherein 35 subjects were selected from different radiography groups (including nuclear medicine, radiology, radiotherapy, and CT scan) while the other 35 subjects were staffs who had no exposure to radiation. Later, urine samples were collected at the end of the working shift to determine the 8-OHdG concentration. The samples were obtained via SPE (solid-phase extraction) method. Subsequently, the 8-OHdG concentration was measured by the GC-MS analyzer. Results: The results confirmed that, the average concentration of 8-OHdG in the radiographers' urine (253.4 ± 31.2 ng/mg of creatinine) had a significant difference as compared to the nonradiographers' urine (141.1 ± 21.9 ng/mg of creatinine) (P = 0.004). Conclusions: In conclusion, due to elimination of interfering factors, ionizing radiation affects the increase in 8-OHdG levels and acts as a potential biomarker for the damaged oxidative DNA.
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