オクダ　ケイ   OKUDA Kei   奥田　圭    所属   広島修道大学  人間環境学部    職種   准教授
言語種別	英語
発行・発表の年月	2020/03
形態種別	学術論文
査読	査読有り
標題	Effects of chronic low-dose radiation on cataract prevalence and characterization in wild boar (Sus scrofa) from Fukushima, Japan
執筆形態	共著
掲載区分	国外
出版社・発行元	Scientific Reports
巻・号・頁	10(#4055)
著者・共著者	Samantha L. Pederson, Margaret C. Li Puma, Joshua M. Hayes, Kei Okuda, Christopher M. Reilly, James C. Beasley, Lance C. Li Puma, Thomas G. Hinton, Thomas E. Johnson and Kate S. Freeman
概要	This study evaluated cataracts in wild boar exposed to chronic low-dose radiation. We examined wild boar from within and outside the Fukushima Exclusion Zone for nuclear, cortical, and posterior subcapsular (PSC) cataracts in vivo and photographically. Plausible upper-bound, lifetime radiation dose for each boar was estimated from radioactivity levels in each animal's home range combined with tissue concentrations of 134+137Cesium. Fifteen exposed and twenty control boar were evaluated. There were no significant differences in overall prevalence or score for cortical or PSC cataracts between exposed and control animals. Nuclear (centrally located) cataracts were significantly more prevalent in exposed boar (p< 0.05) and had statistically higher median scores. Plausible upper-bound, lifetime radiation dose ranged from 1 to 1,600 mGy in exposed animals, with no correlation between dose and cortical or PSC score.