Acknowledgements: the article was prepared in the context of the Federal Target Program "Modernization of high-tech methods of identification of medical consequences of exposure to radiation of personnel of the Mayak Production Association and population of the Ural region," Contract № 27.501.21.2 of 11.06.2021.

Author contributions: E.A. Blinova — study planning, generalization of primary material, analysis and discussion of the results, article drafting; A.V. Korechenkova — laboratory tests, article drafting; V.S. Nikiforov — laboratory tests, article drafting; A.V. Akleyev — study planning, article editing, authoring of the final version of the article.

Compliance with ethical standards: the study was approved by the Ethics Committee of the Urals Research Center for Radiation Medicine of the FMBA of Russia (Minutes #2 of July 20, 2021). All participants signed the informed consent form to participate in the study.