WEKO3
アイテム
Effects of Low-dose Heavy Ions on the Embryonic Development of Melanoblasts and Melanocytes in the Epidermis and Hair Bulb of Mice
https://repo.qst.go.jp/records/70918
https://repo.qst.go.jp/records/7091866d8b66f-b51f-4fad-b28b-e4dc736c0f38
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-09-27 | |||||
| タイトル | ||||||
| タイトル | Effects of Low-dose Heavy Ions on the Embryonic Development of Melanoblasts and Melanocytes in the Epidermis and Hair Bulb of 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Hirobe, Tomohisa
× Hirobe, Tomohisa× Eguchi-Kasai, Kiyomi× Sugaya, Kimihiko× Murakami, Masahiro× 廣部 知久× 笠井 清美× 菅谷 公彦× 村上 正弘 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Effects of prenatal low-dose irradiations of heavy ions on the embryonic development of melanocytes have not been well studied. The aim of this study is to investigate in detail the effects of low-dose heavy ions on the development of melanocytes in embryonic skin of mice. Pregnant females of C57BL/10J mice were irradiated whole-body at 9 days of gestation with a single acute dose of silicon, argon and iron ions in addition to gamma-rays, and the number of melanoblasts and melanocytes in the epidermis and hair bulbs of 18-day-old embryos was counted histochemically. Drastic decrease in the number of epidermal melanoblasts and melanocytes and hair bulb melanocytes was observed even in 0.1 Gy-treated embryos, and the number gradually decreased as dose increased. The decrease in the number of dorsal hair bulb melanocytes well correlated with the linear energy transfer of radiations tested, but not in the number of dorsal and ventral epidermal melanoblasts and melanocytes as well as ventral hair bulb melanocytes. Moreover, the effects of heavy ions on the ventral skin were greater than those on the dorsal skin especially in melanocyte numbers. These results suggest that the prenatal exposure to low-dose heavy ions possesses an inhibitory effect on the proliferation and differentiation of melanocytes with a greater effect on the ventral skin than on the dorsal skin. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | THE 42ND ANNUAL ESDR MEETING | |||||
| 発表年月日 | ||||||
| 日付 | 2012-09-22 | |||||
| 日付タイプ | Issued | |||||
