首页> 外文期刊>Mutation Research, A. Reviews in Genetic Toxicology >Induction of micronuclei by acute and chronic exposure in vivo to gamma rays in murine polychromatic erythrocytes
【24h】

Induction of micronuclei by acute and chronic exposure in vivo to gamma rays in murine polychromatic erythrocytes

机译:体内急性和慢性暴露于鼠多色红细胞中的γ射线诱导微核

获取原文
获取原文并翻译 | 示例
       

摘要

The effect on micronuclei (MN) frequency of in vivo exposure to different dose rates of gamma rays in murine polychromatic erythrocytes (PCE) was studied. Groups of animals were irradiated with 1.0 Gy of gamma rays administered in 10, 100, 1000 or 10,000 min the micronucleated polychromatic-erythrocytes (MN-PCE) frequency was scored in blood samples obtained from the tail of mice at various times before, during or after irradiation. The time-response curves for the10, 100, and 1000 min exposure weresimilar; however, the two first curves showed a peak at 1800 min and the last at 2400 min after exposure. The curve obtained from the 10,000 min exposure showed a plateau for a long period during and after the exposure. However, the integration of the area under the curves indicates that trie damage caused by the different radiation protocols was the same, suggesting that throughout time, the lesions were not repaired but rather diluted by cell division.
机译:研究了在小鼠多色红细胞(PCE)中不同剂量率的γ射线体内暴露对微核(MN)频率的影响。在10、100、1000或10,000分钟内,对动物群照射1.0 Gy的伽马射线,在从小鼠尾巴获得的血样中,之前,期间或不同时间对微核多色红细胞(MN-PCE)频率进行评分照射后。 10、100和1000分钟暴露的时间响应曲线相似;但是,前两条曲线在暴露后1800分钟处出现一个峰,最后一条在2400分钟后出现峰。从10,000分钟的暴露获得的曲线在暴露期间和之后长时间处于平稳状态。然而,曲线下面积的积分表明,由不同的辐射方案引起的特里氏损伤是相同的,这表明在整个时间内,病变并未被修复而是被细胞分裂稀释了。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号