Cytogenetic monitoring of enterprise workers in contact with radionuclides
- Authors: Sycheva L.P.1, Kiselev S.M.1, Shlygin V.V.1, Shandala N.K.1
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Affiliations:
- State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
- Issue: Vol 61, No 5 (2025)
- Pages: 77-88
- Section: ГЕНЕТИКА ЧЕЛОВЕКА
- URL: https://journal-vniispk.ru/0016-6758/article/view/296528
- DOI: https://doi.org/10.31857/S0016675825050073
- EDN: https://elibrary.ru/tmekzp
- ID: 296528
Cite item
Abstract
Buccal micronucleus cytome assay (BMCA) using the accumulation index (Iac) of cytogenetic damage is currently one of the best methods of cytogenetic monitoring. The personnel of the enterprise having contact with radionuclides were examined twice with an interval of one year. Three groups were examined: group 1, not in contact with harmful factors (control); group 2, in contact mainly with the chemical factor, group 3, in contact mainly with the radiation factor (the annual accumulated dose is low – up to 5.2 mSv). An integral indicator of harmfulness was calculated, also taking into account the severity and intensity of the work process. In group 3, it is twice as high as in group 2. The average frequencies of cells with cytogenetic damages (micronuclei and nuclear protrusions) in the control group are 1.78 ± 0.27‰ и 2.25 ± 0.40‰ (2021 and 2022), in group 2 – 1.64 ± 0.70‰ и 1.86 ± 0.34‰; in group 3 – 2.81 ± 0.71‰ и 2.91 ± 0.60‰ respectively. The index of accumulation of cytogenetic damages in the group of personnel in contact with radionuclides is 1.2–2.2 times higher than in the other two (p < 0.05). A repeat examination of the personnel a year later confirmed that the identified patterns are not random. Comparison of the BMCA biomarkers shows their good agreement at the two examination periods and with the data of a previously conducted examination at another radiation facility. The presented approach is a convenient tool for assessing the negative impact of environmental factors at the group and individual levels.
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About the authors
L. P. Sycheva
State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
Author for correspondence.
Email: lpsycheva@mail.ru
Russian Federation, Moscow, 123182
S. M. Kiselev
State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
Email: lpsycheva@mail.ru
Russian Federation, Moscow, 123182
V. V. Shlygin
State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
Email: lpsycheva@mail.ru
Russian Federation, Moscow, 123182
N. K. Shandala
State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency
Email: lpsycheva@mail.ru
Russian Federation, Moscow, 123182
References
- Fenech M., Knasmueller S., Nersesyan A. et al. The buccal micronucleus cytome assay: New horizons for its implementation in human studies // Mutat. Res. Genet. Toxicol. Environ. Mutagen. 2024. V. 894. https://doi.org/10.1016/j.mrgentox.2023.503724
- Fenech M., Holland N., Zeiger E. et al. The HUMN and HUMNxL international collaboration projects on human micronucleus assays in lymphocytes and buccal cells – past, present and future // Mutagenesis. 2011. V. 26. P. 239–245. https://doi.org/10.1093/mutage/geq051
- Sycheva L.P. Diagnostics, correction and prophylaxis of prepathological states using the non-invasive cell technology is one of the ways of longevity // Front. Genet. 2015. V. 6. P. 1–2. https://doi.org/10.3389/fgene.2015.00184
- Sycheva L.P., Kiselev S.M., Shandala N.K. Cytogenetic analysis (buccal micronucleus cytome assay) of radioactive waste management workers // Mutat. Res. Genet. Toxicol. Environ. Mutagen. 2021. V. 870–871.https://doi.org/10.1016/j.mrgentox.2021.503403
- Щекина Е.В., Масленский В.В. Оценка индивидуального профессионального риска для работников литейного производства на основе методики расчета вероятности утраты работником трудоспособности в зависимости от состояния условий труда на рабочем месте // Молодой исследователь Дона. 2018. T. 13. № 4. С. 170–179. [http://mid-journal.ru]
- WMA Declaration of Helsinki – Ethical Principles for Medical Research Involving Human Subjects. 2013.
- Оценка состояния здоровья персонала предприятий, осуществляющих деятельность по обращению с отработавшим ядерным топливом и радиоактивными отходами. Методические рекомендации. МР ФМБА России 12.031-2020 // https://fmbafmbc.ru/scientific-activities/publishing/publisher/
- Сычева Л.П. Биологическое значение, критерии определения и пределы варьирования полного спектра кариологических показателей при оценке цитогенетического статуса человека // Мед. генетика. 2007. Т. 6. № 11. С. 3–11.
- Сычева Л.П. Цитогенетический мониторинг для оценки безопасности среды обитания человека // Гигиена и санитария. 2012. Т. 91. № 6. С. 68–72.
- Vral A., Fenech M., Thierens H. The micronucleus assay as a biological dosimeter of in vivo ionising radiation exposure // Mutagenesis. 2011. V. 26. P. 11–17.https://doi.org/10.1093/mutage/geq078
- Bazyka D., Finch S.C., Ilienko I.M. et al. Buccal mucosa micronuclei counts in relation to exposure to low dose-rate radiation from the Chornobyl nuclear accident and other medical and occupational radiation exposures // Environ. Health. 2017. V. 16. № 1. P. 70. https://doi.org/10.1186/s12940-017-0273-x
- Torres L.A., Santos Rodrigues A. Dos, Linhares D. et al. Buccal epithelial cell micronuclei: Sensitive, non-invasive biomarkers of occupational exposure to low doses of ionizing radiation // Mutat. Res. Genet. Toxicol. Environ. Mutagen. 2019. V. 838. P. 54–58. https://doi.org/10.1016/j.mrgentox. 2018. 12.009
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