染色体型畸变

染色体型畸变率指标在射线工作者健康监护中应用的探讨

Study on the application of chromosome aberration frequency for health inspection in X-ray workers

而这些核素诱发骨髓细胞染色体畸变的类型均以染色单体型畸变为主，同时也诱发个别的染色体断裂和易位发生，并可见骨髓细胞中期分裂指数值明显下降。

Among the type of chromosome aberrations induced by rare earths nuclides with different ionic radius , chromatid breakage was predominant , accompanied with a few chromosome breakage and translocation .

6名正常人外周血淋巴细胞培养物加入不同浓度的523后，分析计数了染色单体型、染色体型畸变及姊妹染色单体交换（SCE）。

Normal human peripheral lymphocyte cultures were treated with various concentrations of " 523 " solution in vitro . Chromatid type aberrations , chromosome type aberrations and sister chromatid exchanges ( SCE ) were analysed .

2Gyγ-射线诱导的G2染色单体断裂畸变随着孵育时间的延长发生了明显的连接即修复，对G2-染色单体型断裂畸变，有近65%的断裂在辐射后24h内得以修复；

With the prolongation of culture time , G2 chromatid-type breaks obviously got repaired , and almost 65 % chromatid-type breaks got repaired in the early 24 hour post-irradiation , whereas only about 20 % iso-chromatid breaks got repaired during the same time .