职业接触抗癌药物护士外周血淋巴细胞DNA损伤的研究

目的：用彗星试验检测接触抗癌药物护士的DNA损伤。方法：选择16名职业性接触抗癌药物的护士为暴露组，平均暴露工龄为5．6年，平均每天配药7．8份。另选16名从未接触过抗癌药物的护校学生为对照组。用彗星试验检测两组对象外周血淋巴细胞DNA的迁移情况。结果：暴露组平均彗星长度为46．27μm，明显高于对照组（26．78μm），差异有显著性（P＜0．01）。暴露组平均长尾核的百分率为64．83％，明显高于对照组的4．87％，差异有显著性（P＜0．01）。结论：暴露组的护士有不同程度的DNA损伤。

The study of DNA damage of peripheral lymphocytes in the nurses occupationally exposed to anticancer drugs

OBJECTIVE: To detect the DNA damage of the nurses occupationally exposed to anticancer drugs and to assess the exposure level using Comet assay. METHODS: Sixteen nurses occupationally exposed to anticancer drugs were selected as exposure group, the average exposure period was 5.6 years, and the average exposure dose was to prepare 7.8 portions of anticancer drugs daily. Meanwhile, sixteen nurse students were selected as control group. The DNA migration of the peripheral lymphocytes of both groups was detected using comet assay. RESULTS: The comet length was 46.27 microns in exposure group, which was significantly higher than that of control group (26.78 microns, P < 0.01). Also the percentage of long tailed nucleus (LTN) of exposure group was 64.83%, which was significantly higher than that of control group (4.87%, P < 0.01). CONCLUSIONS: There was DNA damage in the nurses occupationally exposed to antineoplastic drugs.