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ICRP International

Conference on Recovery After Nuclear Accidents

Radiological Protection Lessons
from Fukushima and Beyond

December 1 - 18, 2020

A.G. Kudyasheva, L.A. Bashlikova, O.V. Ermakova, O.V. Raskosha, A.M. Kadukova, S.V. Gancharou

Updated: Dec 11, 2020

Effects of Radioactive Contamination on the Murine Rodents in the Remote Period After the Chernobyl Accident

A.G. Kudyasheva (FRC Komi Scientific Center, RAS, Russia), L.A. Bashlikova (FRC Komi Scientific Center, RAS, Russia), O.V. Ermakova (FRC Komi Scientific Center, RAS, Russia), O.V. Raskosha (FRC Komi Scientific Center, RAS, Russia), A.M. Kadukova (Institute of Radiobiology, NAS, Belarus), S.V. Gancharou (Institute of Radiobiology, NAS, Belarus)


An assessment of the long-term consequences of radioactive contamination on murine rodents in the exclusion zone of the Chernobyl NPP is given. Monitoring of rodents was carried out in the first post-accident period, 21 and 30 years after the accident at sites with different level of radioactive contamination. The 137Cs, 90Sr whole body activity concentration, the micronucleus test of bone marrow cells and the parameters of metabolism (including the lipid metabolism in the liver) of rodents were investigated. The main stages of qualitative changes in body systems and regulation processes in several generations of animals have been determined. The high variability of various parameters of the main body systems, especially in the first decade after the accident, can lead to the increased level of cell mutations, disruption of the functioning of various cellular systems. The development of adaptive reactions occurs in subsequent generations of animals.

チェルノブイリ事故後のネズミ科齧歯動物に対する放射能汚染の長期的な影響

A.G. Kudyasheva (FRC Komi Scientific Center, RAS, Russia), L.A. Bashlikova (FRC Komi Scientific Center, RAS, Russia), O.V. Ermakova (FRC Komi Scientific Center, RAS, Russia), O.V. Raskosha (FRC Komi Scientific Center, RAS, Russia), A.M. Kadukova (Institute of Radiobiology, NAS, Belarus), S.V. Gancharou (Institute of Radiobiology, NAS, Belarus)


チェルノブイリ原子力発電所の立入禁止区域において、放射能汚染によるネズミ科齧歯動物への長期的影響が評価されている。最初の事故後期間である事故後21~30年間、放射能汚染の程度がさまざまなサイトで齧歯動物が監視された。齧歯動物の137Cs、90Sr全身放射能濃度、骨髄細胞の小核試験、代謝(肝臓の脂質代謝を含む)のパラメーターが調査された。数世代の動物における体組織や調節過程の定性的変化の主な段階が特定されている。特に事故から最初の10年では主な体組織のさまざまなパラメーターの変動が大きく、細胞の突然変異の程度が上昇し、さまざまな細胞組織の機能が妨げられることがある。その後の世代の動物では適応反応の進化が発生する。

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