WEKO3
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Cancer prevention by adult-onset calorie restriction after infant exposure to ionizing radiation in B6C3F1 male mice.
https://repo.qst.go.jp/records/46889
https://repo.qst.go.jp/records/46889b54b63e9-4dbc-4ee3-bcd7-b8d7725c84b5
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-10-28 | |||||
タイトル | ||||||
タイトル | Cancer prevention by adult-onset calorie restriction after infant exposure to ionizing radiation in B6C3F1 male mice. | |||||
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 |
Shang, Yi
× Shang, Yi× Kakinuma, Shizuko× Yamauchi, Kazumi× Morioka, Takamitsu× Tani, Shusuke× Takabatake, Takashi× Kataoka, Yasushi× Shimada, Yoshiya× 尚 奕× 柿沼 志津子× 森岡 孝満× 谷 修祐× 高畠 貴志× 片岡 泰× 島田 義也 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Children are especially sensitive to ionizing radiation and chemical carcinogens, and limiting their cancer risk is of great public concern. Calorie restriction (CR) is a potent intervention for suppressing cancer. However, CR is generally not appropriate for children. This study, therefore, examined to see if adult-onset CR influences the lifetime cancer risk in mice after early-life exposure to ionizing radiation. Infant male mice (1-week-old) were exposed to 3.8 Gy X-rays, fed a control 95 kcal/week or CR 65 kcal/week diet from 7 weeks of age (adult stage), and their lifespan and tumor development were assessed. Irrespective of CR, X-rays shortened lifespan by 38%, and irrespective of irradiation CR extended lifespan by 20%. Thymic lymphoma (TL) and early-occurring non-TL were induced by radiation. The liver and Harderian gland were more susceptible to radiation-induced tumors than the lungs and non-thymic lymphoid tissues (late occurring). CR reduced the risk of hepatocellular carcinoma, late-occurring non-TL, lung tumor, Harderian tumor, and hemangioma but had less impact on TL and early-occurring non-TL. Most notably, the effects of X-rays on induction of lung tumors, late-occurring non-TL and hemangioma were essentially canceled by CR. The ability of CR to prevent late-occurring tumors was the same for non-irradiated and irradiated mice, indicating that the mechanism by which CR influences cancer is independent of irradiation. Our results indicate that adult-onset CR significantly inhibits late-occurring tumors in a tissue-dependent manner regardless of infant radiation exposure. | |||||
書誌情報 |
International journal of cancer. Journal international du cancer 巻 135, 号 5, p. 1038-1047, 発行日 2014-01 |
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出版者 | ||||||
出版者 | Wiley-Liss | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0020-7136 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 24482070 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1002/ijc.28751 |