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The Effects of Whole Body Gamma Irradiation on Mice, Age-Related Behavioral, and Pathophysiological Changes

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Abstract

We designed a study with the objective to determine the long-term radiation effects of gamma rays, originating from a single shot of Co60 at a dose of 2 Gy on the 7-month-old male mice of the ICR line in 30 days after the irradiation. The aim of this study was to characterize the behavior of animals using the Open Field test, immuno-hematological status, and morpho-functional changes in the central nervous system of mice. Irradiated animals displayed significantly different behavior in the OF in comparison with the control group. The radiation damage was confirmed by assessing the ratio of leukocytes in the peripheral blood of mice at a later date after exposure to Co60. After irradiation, a decrease in the glioneuronal complex was observed in the irritated group as well as histological changes of brain cells. To sum up, not only was the hematological status of mice altered upon the total gamma irradiation, but also their behavior, which was most probably due to significant alterations in the CNS.

Graphical Abstract

Study of influence of ionizing radiation on female mice, comparison between different age groups. Open Field test on the 30 days after 2 Gy of γ-rays and histological analysis indicated changes in behavioral patterns, leucocytes, and brain tissue.

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Acknowledgements

The study was carried out in the framework of scientific theme of the Laboratory of Radiation Biology nr. 04-9-1077-2009/2023 “Research on the Biological Effect of Heavy Charged Particles with Different Energies.” We want to sincerely thank Professor E.A. Krasavin and A. N. Bugay for their support and guidance.

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All authors contributed equally to the research work. The experiment was conducted at the Laboratory of radiation biology by authors who work at Joint institute for nuclear research. Contributors of histological team were also SD and NB. Statistical results were obtained by RM and DP. The main work with final manuscript and data selection and finalization was made by IK and ML.

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Correspondence to M. Lalkovičova.

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Kolesnikova, I.A., Lalkovičova, M., Severyukhin, Y.S. et al. The Effects of Whole Body Gamma Irradiation on Mice, Age-Related Behavioral, and Pathophysiological Changes. Cell Mol Neurobiol 43, 3723–3741 (2023). https://doi.org/10.1007/s10571-023-01381-1

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  • DOI: https://doi.org/10.1007/s10571-023-01381-1

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