Purpose: To evaluate thiol-disulphide homeostasis - a novel, easily calculated, readily available, and relatively cheap oxidative stress marker - in radiation workers and compare the results with healthy controls.
Materials And Methods: A total of 108 participants were enrolled in the study including 63 hospital workers occupationally exposed to ionizing radiation in the units of interventional radiology, interventional cardiology and nuclear medicine. A control group consisted of 45 individuals staff in the same hospital. Serum thiol-disulphide homeostasis measurement was investigated via the spectrophotometric method newly described by Erel and Neşelioğlu.
Results: The mean serum native thiol levels of radiation workers (528.96 ± 86.42 μmol/l) was significantly lower than control subjects (561.05 ± 104.83 μmol/l) (p = .045). The mean serum total thiol levels of radiation workers (547.70 ± 91.50 μmol/l) was lower than control subjects (580.36 ± 112.24 μmol/l). Nevertheless, there was no significant difference between total thiol of exposed workers and controls.
Conclusions: The results show that long-term low dose ionizing radiation may lead to oxidative stress and have side-effects in antioxidant thiol groups. We may suggest supporting radiation workers by safe antioxidant nutritional formulations and following up via both physical dosimetry and biodosimetric methods.
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