1000Bq/kgだと40を超えるものが見えないところを見ると

何らかの造血細胞の分化を阻害する効果があるのかもしれない

今後は、発がん率などとの相関も調べるべきだろう

あとヒトで、これほど高度に被曝した例はほとんどないだろうが

血液検査で網羅的に相関を調べてみる価値はあるな

http://www.nature.com/srep/2014/140724/srep05793/fig_tab/srep05793_F2.html
White blood cell counts and muscle radiocesium concentrations in immature Japanese monkeys captured in Fukushima.

Table 3: Correlation between muscle radiocesium concentration and hematological values in Fukushima monkeys
From
Low blood cell counts in wild Japanese monkeys after the Fukushima Daiichi nuclear disaster
Kazuhiko Ochiai, Shin-ichi Hayama, Sachie Nakiri, Setsuko Nakanishi, Naomi Ishii, Taiki Uno, Takuya Kato, Fumiharu Konno, Yoshi Kawamoto, Shuichi Tsuchida & Toshinori Omi
Scientific Reports 4, Article number: 5793 doi:10.1038/srep05793
Received 06 February 2014 Accepted 24 June 2014 Published 24 July 2014
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Table 3: Correlation between muscle radiocesium concentration and hematological values in Fukushima monkeys
RBC Hb Ht Cs
n r p n r p n r p n r p
Pearson's correlation coefficient (r) was calculated to show correlation between muscle radiocesium concentrations and hematological values for each age group.

WBC, white blood cell count; RBC, red blood cell count; Hb, hemoglobin; Ht, hematocrit; Cs, muscle radiocesium concentration; n, number of individuals; p, p values.

Immature
WBC 22 0.430 0.045 21 0.501 0.021 22 0.526 0.012 23 −0.520 0.011
RBC 22 0.967 5 years). Furthermore, we calculated fat indices to evaluate monkeys' nutritional status. In the previous study20, the ratio of mesenteric fat weight to body weight is proportional to the percentage of body fat in Japanese monkeys. The fat index was defined as mesenteric fat weight (g) divided by body weight (g), multiplied by 1000.

Measurements of radioactivity
The radioactivity of radiocesium of muscle samples was analyzed using a germanium semiconductor spectrometer (Canberra, GC2020-7500SL-2002CSL, Meriden, CT) and a NaI (T1) scintillation detector (Atometex, AT1320A, Minsk, Belarus). Data were corrected to background radiation dose in the measurement environment on an as-needed basis. 134Cs was detected using 604.70- and 795.85-keV gamma-ray energies, while 137Cs was detected using 661.6-keV gamma-ray energies. The radioactivity of radiocesium was adjusted to the value on the day of capture based on its physical half-life. The limit of detection was 10 Bq/kg. Muscle cesium concentration was calculated as the combined concentration of 134Cs and 137Cs per kg fresh weight muscle.

Statistics
Data were analyzed using SPSS 10.0 for Windows (SPSS Inc., Chicago, Illinois, USA). Two-way ANOVA was used to compare hematological values and fat index with areas and age as factors. The Tukey–Kramer method was used to perform multiple comparisons of hematological values between groups. Pearson's correlation coefficient was used to examine correlations between muscle cesium concentration and hematological values.

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Acknowledgements
Introduction• Results• Discussion• Methods• References• Acknowledgements• Author information
This study was made possible by the cooperation of Fukushima City, Mr. Hideharu Yamazaki, and Dr. Noriaki Shibata. The authors would like to express their sincere thanks to all those involved in this study. We would also like to express our deepest gratitude to members of Nippon Veterinary and Life Science University for their critical assistance in the study. The present study was supported by the following funding sources: Cooperative Research Program of the Primate Research Institute, Kyoto University, and Science Research Promotion Fund from the Promotion and Mutual Aid Corporation for Private Schools in Japan.

Author information

筋肉中の放射性セシウムは、どのようにして調べたのか？

想像するに捕獲した後に、麻酔をかけて手術を行い、少量の筋肉を採取したと思われる。

生体への影響を考えると、サルが日常生活で不便がない、余り使わない筋肉から採取したと思われる。

採取量も、本当に少量だろう。

問題は、筋肉の採取量と採取部位だろう。

少量で、放射性セシウムを正確に測れるのか？

測定した数値は、その個体の筋肉全体の平均値になるのか？

バンダジェフスキー博士が、遺体を解剖して測定した結果では、成人と子どもでは、放射性セシウムの蓄積量が、かなり違う。

成人では、割合、平均的に分布しているが、子どもでは、甲状腺、骨格筋、小腸に蓄積している割合が高くなる。