論文 - 詳細
| RRC ID | 64953 |
|---|---|
| 著者 | Tanaka S, Kinouchi T, Fujii T, Imanaka T, Takahashi T, Fukutani S, Maki D, Nohtomi A, Takahashi S. |
| タイトル | Observation of morphological abnormalities in silkworm pupae after feeding 137CsCl-supplemented diet to evaluate the effects of low dose-rate exposure. |
| ジャーナル | Sci Rep |
| Abstract |
Since the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, morphological abnormalities in lepidopteran insects, such as shrinkage and/or aberration of wings, have been reported. Butterflies experimentally exposed to radiocesium also show such abnormalities. However, because of a lack of data on absorbed dose and dose-effect relationship, it is unclear whether these abnormalities are caused directly by radiation. We conducted a low dose-rate exposure experiment in silkworms reared from egg to fully developed larvae on a 137CsCl-supplemented artificial diet and estimated the absorbed dose to evaluate morphological abnormalities in pupal wings. We used 137CsCl at 1.3 × 103 Bq/g fresh weight to simulate 137Cs contamination around the FDNPP. Absorbed doses were estimated using a glass rod dosimeter and Monte Carlo particle transport simulation code PHITS. Average external absorbed doses were approximately 0.24 (on diet) and 0.016 mGy/day (near diet); the average internal absorbed dose was approximately 0.82 mGy/day. Pupal wing structure is sensitive to radiation exposure. However, no significant differences were observed in the wing-to-whole body ratio of pupae between the 137CsCl-exposure and control groups. These results suggest that silkworms are insensitive to low dose-rate exposure due to chronic ingestion of high 137Cs at a high concentration. |
| 巻・号 | 10(1) |
| ページ | 16055 |
| 公開日 | 2020-9-29 |
| DOI | 10.1038/s41598-020-72882-y |
| PII | 10.1038/s41598-020-72882-y |
| PMID | 32994421 |
| PMC | PMC7524783 |
| MeSH | Animals Bombyx / metabolism* Butterflies Cesium / metabolism Cesium Radioisotopes / adverse effects* Cesium Radioisotopes / metabolism Chlorides / metabolism Diet Dietary Supplements Fukushima Nuclear Accident Insecta Japan Nuclear Power Plants Pupa / metabolism Radiation Exposure / adverse effects* Radiation Monitoring / methods Soil Pollutants, Radioactive / analysis |
| IF | 3.998 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 4 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| カイコ | NB2 |