The effect of chronic low-dose environmental radiation on organ mass of bank voles in the Chernobyl Exclusion Zone
Kivisaari, K., Boratyński, Z., Lavrinienko, A., Kesäniemi, J., Lehmann, P., & Mappes, T. (2020). The effect of chronic low-dose environmental radiation on organ mass of bank voles in the Chernobyl Exclusion Zone. International Journal of Radiation Biology, 96(10), 1254-1262. https://doi.org/10.1080/09553002.2020.1793016
Published inInternational Journal of Radiation Biology
DisciplineEkologia ja evoluutiobiologiaEvoluutiotutkimus (huippuyksikkö)Ecology and Evolutionary BiologyCentre of Excellence in Evolutionary Research
© 2020 The Author(s). Published with license by Taylor and Francis Group, LLC.
Purpose: Animals are exposed to environmental ionizing radiation (IR) externally through proximity to contaminated soil and internally through ingestion and inhalation of radionuclides. Internal organs can respond to radioactive contamination through physiological stress. Chronic stress can compromise the size of physiologically active organs, but studies on wild mammal populations are scarce. The effects of environmental IR contamination on organ masses was studied by using a wild rodent inhabiting the Chernobyl Exclusion Zone (CEZ). Material and Methods: The masses of brain, heart, kidney, spleen, liver and lung were assessed from bank voles (Myodes glareolus) captured from areas across radioactive contamination gradient within the CEZ. Relative organ masses were used to correct for the body mass of an individual. Results: Results showed a significant negative correlation between IR level in the environment and relative brain and kidney mass. A significant positive correlation between IR and relative heart mass was also found. Principal component analysis (PCA) also suggested positive relationship between IR and relative spleen mass, however this relationship was not significant when spleen was analyzed separately. There was no apparent relationship between IR and relative liver or lung mass. Conclusions: Results suggest that in the wild populations even low but chronic doses of IR can lead to changes in relative organ mass. The novelty of these result is showing that exposure to low doses can affect the organ masses in similar fashion as previously shown on high, acute, radiation doses. This data supports the hypothesis that wildlife might be more sensitive to IR than animals used in laboratory studies. However, more research is needed to rule out the other indirect effects such as radiosensitivity of the food sources or possible combined stress effects from e.g. infections. ...
PublisherTaylor & Francis
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland
Funding program(s)Academy Project, AoF
Additional information about fundingAcademy of Finland to TM (Grant No. 268670) and Emil Aaltonen Foundation (Grant No. 160107) and Oskar Öflund Foundation to KK, open research doctoral program award from the University of Oulu Graduate School to AL and Portuguese Foundation for Science and Technology (Grant No. SFRH/BPD/84822/2012) for ZB financially supported this study.
Showing items with similar title or keywords.
Expansion of rDNA and pericentromere satellite repeats in the genomes of bank voles Myodes glareolus exposed to environmental radionuclides Jernfors, Toni; Danforth, John; Kesäniemi, Jenni; Lavrinienko, Anton; Tukalenko, Eugene; Fajkus, Jiří; Dvořáčková, Martina; Mappes, Tapio; Watts, Phillip C. (John Wiley & Sons, 2021)Altered copy number of certain highly repetitive regions of the genome, such as satellite DNA within heterochromatin and ribosomal RNA loci (rDNA), is hypothesized to help safeguard the genome against damage derived from ...
Interpretation of gut microbiota data in the ‘eye of the beholder’ : A commentary and re‐evaluation of data from ‘Impacts of radiation exposure on the bacterial and fungal microbiome of small mammals in the Chernobyl Exclusion Zone’ Watts, Phillip C.; Mappes, Tapio; Tukalenko, Eugene; Mousseau, Timothy A.; Boratyński, Zbyszek; Møller, Anders P.; Lavrinienko, Anton (Wiley-Blackwell, 2022)1.Evidence that exposure to environmental pollutants can alter the gut microbiota composition of wildlife includes studies of rodents exposed to radionuclides. 2.Antwis et al. (2021) used amplicon sequencing to characterise ...
Chronic Background Radiation Correlates With Sperm Swimming Endurance in Bank Voles From Chernobyl Kivisaari, Kati; Calhim, Sara; Lehmann, Philipp; Boratyński, Zbyszek; Mousseau, Timothy A.; Møller, Anders P.; Mappes, Tapio (Frontiers Media SA, 2022)Sperm quantity and quality are key features explaining intra- and interspecific variation in male reproductive success. Spermatogenesis is sensitive to ionizing radiation and laboratory studies investigating acute effects ...
Applying the Anna Karenina principle for wild animal gut microbiota : temporal stability of the bank vole gut microbiota in a disturbed environment Lavrinienko, Anton; Tukalenko, Eugene; Kesäniemi, Jenni; Kivisaari, Kati; Masiuk, Sergii; Boratyński, Zbyszek; Mousseau, Timothy A.; Milinevsky, Gennadi; Mappes, Tapio; Watts, Phillip C. (John Wiley & Sons, 2020)Gut microbiota play an important role in host health. Yet, the drivers and patterns of microbiota imbalance (dysbiosis) in wild animals remain largely unexplored. One hypothesised outcome of stress on animal microbiomes ...
Kesäniemi, Jenni; Lavrinienko, Anton; Tukalenko, Eugene; Moutinho, Ana Filipa; Mappes, Tapio; Møller, Anders Pape; Mousseau, Timothy A.; Watts, Phillip C. (Springer, 2020)Mitochondria are sensitive to oxidative stress, including that derived from ionizing radiation. To quantify the effects of exposure to environmental radionuclides on mitochondrial DNA (mtDNA) dynamics in wildlife, bank ...