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Gałecki M, Tartas A, Szymanek A, Sims E, Lundholm L, Sollazzo A, Cheng L, Fujishima Y, Yoshida MA, Żygierewicz J, Wojcik A, Brzozowska-Wardecka B. Precision of scoring radiation-induced chromosomal aberrations and micronuclei by unexperienced scorers. Int J Radiat Biol 2019; 95:1251-1258. [PMID: 31140900 DOI: 10.1080/09553002.2019.1625462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: Dose assessment plays an important role in case of radiological accidents and can be performed by scoring structural changes of chromosome morphology induced in cells by ionizing radiation. The results of such a test are biased by scorer experience, therefore, simple to learn assays are recommended to be used when fast analysis of a large amount of data is needed. The aim of this study was to compare the performance of two radiobiological assays - chromosomal aberrations and micronuclei - by unexperienced scorers with the reference values generated by an expert. Materials and methods: Each participant of an EU-funded two-week radiobiology course was asked to score Chinese hamster ovary cells exposed to gamma radiation up to 4 Gy. The congruence of students' and expert's scores at each dose and the coherence of the dose-response curve parameters between the students were investigated. Results: Micronucleus test tended to be faster and easier to learn than scoring chromosomal aberrations. However, both assays carried out by inexperienced students showed reasonable dose-response curves. Conclusions: In the case of a large radiological accident involving many casualties, the unexperienced scorers would support the process of biodosimetric triage by cytogenetic biological dosimetry.
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Affiliation(s)
- Maciej Gałecki
- Biomedical Physics Division, Faculty of Physics, University of Warsaw , Warsaw , Poland
| | - Adrianna Tartas
- Biomedical Physics Division, Faculty of Physics, University of Warsaw , Warsaw , Poland
| | | | - Emma Sims
- The Bioinformatics Group, School of Water, Energy and Environment, Cranfield Soil and Agrifood Institute, Cranfield University , Bedford , UK
| | - Lovisa Lundholm
- Department of Molecular Biosciences, The Wenner-Gren Institute, Centre for Radiation Protection Research, Stockholm University , Stockholm , Sweden
| | - Alice Sollazzo
- Department of Molecular Biosciences, The Wenner-Gren Institute, Centre for Radiation Protection Research, Stockholm University , Stockholm , Sweden
| | - Lei Cheng
- Department of Molecular Biosciences, The Wenner-Gren Institute, Centre for Radiation Protection Research, Stockholm University , Stockholm , Sweden
| | - Yohei Fujishima
- Department of Radiation Biology, Institute of Radiation Emergency Medicine, Hirosaki University , Hirosaki , Japan
| | - Mitsuaki A Yoshida
- Department of Radiation Biology, Institute of Radiation Emergency Medicine, Hirosaki University , Hirosaki , Japan
| | - Jarosław Żygierewicz
- Biomedical Physics Division, Faculty of Physics, University of Warsaw , Warsaw , Poland
| | - Andrzej Wojcik
- Department of Molecular Biosciences, The Wenner-Gren Institute, Centre for Radiation Protection Research, Stockholm University , Stockholm , Sweden.,Institute of Biology, Jan Kochanowski University , Kielce , Poland
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