摘要
对宁夏１５７名从事放射性工作人员外周血淋巴细胞染色体进行了分析。结果表明，在相当低的的染色体畸变之类型中，以无着丝点断片为主要类型，占畸变的７５％，与国内有关报道相符；染色体畸变率有随从事放射性工作的工龄增加而增高的趋势。染色体畸变率≥２％能否作为一种长期小剂量电离辐射损伤征兆来评价，有待今后进一步探讨。
Positive rates 0.34～0.67%* of chromosome aberrations(ChA)in peripheral blood lymph-ocy tes of 157 radioactive workers in Ningxia were analyzed. It was observed that un centromere slices being the mainodeformity type,agree able to data of current domestic litetature. Among these workers,there was a higher tendency of posi-tive rate of ChA as the yrs enga-ging in work of each particular sub-ject had increased. Concerning the problem of how to evaluate the omen of damage caused by long-term,small ionizing radiation dosage Shown a ChA percentage of≥2%,it is waited to be probed into in the future *a coexistence of positive rates 0.05～0.18% of chromatids aberrationswas also found.
出处
《宁夏医学杂志》
CAS
1994年第6期348-350,共3页
Ningxia Medical Journal
关键词
放射损伤
放射卫生
染色体畸变
淋巴细胞
Radioactivz workers
Radiation injuries/di-ag
Radiologic health
Chromosome aberrations/diag use
Chromatids
Lymphocytes
Ningxia
