Redox dysregulation in imaging professionals occupationally exposed to ionizing and non-ionizing radiation

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: Imaging professionals are occupationally exposed to chronic ionizing radiation (IR) and non-ionizing radiation (NIR). This study aimed to investigate the influence of occupational radiation exposure on oxidative stress and antioxidant levels based on blood biomarkers in different hospital imaging professional groups. Materials and methods: The study groups included 66 imaging professionals occupationally exposed to IR (n = 58, 43 diagnostic radiography (G1), seven nuclear medicine (G2), eight radiation therapy (G3)), and NIR (n = 8, ultrasound imaging (G4)) and 60 non-exposed controls. Blood levels of superoxide (O2•−) as an index of oxidative stress, and the antioxidant activities of superoxide dismutase (SOD), glutathione ratio (GSH/GSSG), and catalase (CAT) were measured. Results: The blood values of O2•−, SOD, and CAT were significantly higher in imaging professionals occupationally exposed to radiation than in the control group (p < .05), while a significant decrease in the ratio of GSH/GSSG was observed (p < .05). The results from the NIR group were significantly higher compared to IR group. Conclusions: Based on these results, chronic exposure to radiation (IR and NIR) is associated with redox dysregulation that may result in damages to cellular biomolecules including lipids, proteins and DNA. Further studies are needed to determine the impact of redox dysregulation and the need for periodic examination among imaging professionals occupationally exposed to IR and NIR.

Original languageEnglish (US)
Pages (from-to)190-196
Number of pages7
JournalInternational Journal of Radiation Biology
Volume100
Issue number2
DOIs
StatePublished - 2024

Keywords

  • Redox dysregulation
  • antioxidants
  • glutathione
  • imaging professionals
  • ionizing radiation
  • non-ionizing radiation

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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