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Transfer of carbon-14 to prenatal and neonatal rats from their mothers exposed to 14C-compounds by ingestion
https://repo.qst.go.jp/records/43164
https://repo.qst.go.jp/records/43164446627dd-d8cd-49b9-a342-fcc93de48e9f
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2003-10-16 | |||||
| タイトル | ||||||
| タイトル | Transfer of carbon-14 to prenatal and neonatal rats from their mothers exposed to 14C-compounds by ingestion | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takeda, Hiroshi
× Takeda, Hiroshi× Fuma, Shoichi× Miyamoto, Kiriko× Kuroda, Noriko× Inaba, Jiro× 武田 洋× 府馬 正一× 宮本 霧子× 黒田 典子 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The transfer of C14 through placenta or milk was investigated and the radiation dose to fetal and newborn rats was estimated. Female rats at different gestational stages or after delivery ware exposed to C14 in the form of sodium bicarbonate, thymidine and lysine by a single ingestion. Radioactivity in maternal tissues and conceptuses (placenta, fetal membrane and fetus) and in the newborn was determined at various times after ingestion. After exposure to these C14 compounds, there was no significant difference between the C14 concentration in the fetus and that in the maternal tissues, suggesting that the placenta has no effect in preventing or accelerating the placental transfer of C14. The concentration and content of C14 in the fetus and newborn were, however, dependent on the chemical form of C14 and on the prenatal or neonatal stage at the time of ingestion. The result of the does estimation showed that C14-lysine gave significantly higher prenatal and neonatal doses than C14-sodium bicarbonate or C14-thymidine. | |||||
| 書誌情報 |
Radiation Protection Dosimetry 巻 105, p. 291-296, 発行日 2003 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0144-8420 | |||||
