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- Title
Effects of radioactive caesium on bull testes after the Fukushima nuclear plant accident.
- Authors
Hideaki Yamashiro; Yasuyuki Abe; Tomokazu Fukuda; Yasushi Kino; Isao Kawaguchi; Yoshikazu Kuwahara; Motoi Fukumoto; Shintaro Takahashi; Masatoshi Suzuki; Jin Kobayashi; Emi Uematsu; Bin Tong; Takahisa Yamada; Satoshi Yoshida; Eimei Sato; Hisashi Shinoda; Tsutomu Sekine; Emiko Isogai; Manabu Fukumoto
- Abstract
We aimed to investigate the effect of chronic radiation exposure associated with the Fukushima Daiichi Nuclear Plant accident on the testis from 2 bulls. Estimated dose of internal exposure in one bull was 0.7-1.2 mGy (134Cs) and 0.4-0.6 mGy (137Cs) and external exposure was 2.0 mGy (134Cs) and 0.8 mGy (137Cs) (196 days). Internal dose in the other was 3.2-6.1 mGy (134Cs) and 1.8-3.4 mGy (137Cs) and external dose was 1.3 mGy (134Cs) and 0.6 mGy (137Cs) (315 days). Sperm morphology and spermatogenesis were within normal ranges. 134,137Cs radioactivity was detected but Cs was not detectable in the testis by electron probe microanalysis. Thus, adverse radiation-induced effects were not observed in bull testes following chronic exposure to the above levels of radiation for up to 10 months. Since we could analyse a limited number of testes, further investigation on the effects of ionizing radiation on spermatogenesis should be extended to more animals.
- Subjects
CESIUM; TESTIS; BULLS; DELAYED radiation effects; FUKUSHIMA Nuclear Accident, Fukushima, Japan, 2011; SPERMATOGENESIS in animals; PHYSIOLOGY
- Publication
Scientific Reports, 2013, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep02850