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1·To investigate the incidence of sister chromatid exchange (SCE) and its influencing factors.

探讨影响姐妹染色单体互换(SCE)频率的因素。

2·Methods: the sister chromatid exchange (SCE) test in mice spermatogonia was used in the study.

方法：采用小鼠精原细胞姐妹染色单体交换实验。

3·Chromosomal stability were detected in 23 children with malignancy by the technique of sister chromatid exchange (SCE).

用姊妹染色单体互换(SCE)技术检测23例恶性肿瘤患儿的染色体稳定性。

4·The mean frequencies of chromosome aberration (CA), sister chromatid exchange (SCE), and micronucleus(MN) were analysed.

静脉采血检测染色体畸变、姊妹染色单体交换（ SCE）、细胞微核的发生率。

5·Conclusion it is recommended that sister chromatid exchange test is an effective in vitro detecting method for mutagenicity of dental materials.

结论体外姐妹染色单体互换试验可推荐作为一项检测口腔材料潜在致突变性的体外评价方法。

6·Purpose and methods: Single cell gel electrophoresis (SCGE), sister chromatid exchanges (SCE), chromosome aberrations are three methods to determine DNA damage and repair.

目的与方法：单细胞凝胶电泳技术(SCGE)、姐妹染色单体交换法(SCE)和染色体畸变分析法均能被用来检测dna的损伤或修复。

7·The paper makes an observation and statistical study of 28 cases in drinking group and 22 cases in control group with peripheric blood of lymphatic sister chromatid exchanges (SCE).

本文对饮酒组28例、对照组22例的外周血淋巴细胞姐妹染色单体互换、核仁形成区和随体联合进行了观察、统计。

8·Ochratoxin a may act by induction of DNA strand breaks, sister chromatid exchanges, DNA adduct formation, or reactive oxygen but the mechanism of action as a toxin is not yet resolved.

赭曲毒素A通过诱导DNA链的断裂、姐妹染色单体的互换、DNA加合物的形成或者活性氧发挥作用，但是作为一种毒素其作用机制仍然没有被解决。

9·We applied the sister chromatid exchange (SCE) technique to pregnant women with antibodies against cytomegalovirus (CMV) positive, to detect the lesion and repair of DNA in the lymphocytes.

采用孕妇外周血淋巴细胞姐妹染色单体交换（SCE）技术，检测巨细胞病毒（CMV）抗体阳性孕妇淋巴细胞DNA损伤和修复。

10·Several studies have shown that SO2 and its derivatives could induce chromosomal aberrations, sister chromatid exchanges and micronuclei in human blood lymphocyte, bone marrow cell in mice and CHL.

研究发现，SO_2及其衍生物可引起人外周血淋巴细胞、小鼠骨髓细胞、中国仓鼠肺成纤维细胞等哺乳动物细胞的染色体畸变、姊妹染色单体交换及微核的形成。