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姊妹染色单体互换(SCE)频率对人类致突变、致癌、遗传效应、药物作用和环境污染等方面的研究具有重要意义。本文对21名百岁以上老人进行外周血淋巴细胞SCE 频率的观察,以探讨长寿与SCE 频率的关系。方法和结果在21名百岁老人中,男性4名,女性17名,年龄100～106岁,平均101.6岁。对照组21名,系同一地区条件相似的老人,年龄65～78岁,平均72.86岁,其中男性4名,女性17名。实验
Sister chromatid exchange (SCE) frequency of human mutagenicity, carcinogenesis, genetic effects, drug effects and environmental pollution and other aspects of research is of great significance. In this paper, the frequency of SCE in peripheral blood lymphocytes in 21 elderly people over 100 years old was observed to explore the relationship between the longevity and the frequency of SCE. Methods and Results Among 21 centenarians, there were 4 males and 17 females, aged from 100 to 106 years (mean, 101.6 years). Control group of 21, the same conditions in the same area of the elderly, aged 65 to 78 years, mean 72.86 years, of which 4 were males and 17 females. experiment