职业与健康 ›› 2025, Vol. 41 ›› Issue (6): 768-772.

• 论著 • 上一篇    下一篇

1-乙炔基环己醇急性毒性及遗传毒性研究

王卫娜, 洪丽华, 杨卫超, 李瑞乾, 张俊刚, 李兴琴   

  1. 河北省疾病预防控制中心卫生毒理所,河北 石家庄 050021
  • 收稿日期:2024-06-24 修回日期:2024-07-10 出版日期:2025-03-15 发布日期:2025-12-16
  • 作者简介:王卫娜,女,主管技师,主要从事卫生毒理学实验研究工作。
  • 基金资助:
    河北省医学科学研究课题(20200695)

Study on the acute toxicity and genotoxicity of 1-ethynylcyclohexanol

WANG Weina, HONG Lihua, YANG Weichao, LI Ruiqian, ZHANG Jungang, LI Xingqin   

  1. Institute of Toxicology,Hebei Province Center for Disease Prevention and Control,Shijiazhuang,Hebei 050021,China
  • Received:2024-06-24 Revised:2024-07-10 Online:2025-03-15 Published:2025-12-16

摘要: 目的 分析1-乙炔基环己醇的急性毒性及遗传毒性,为其安全使用提供毒理学数据。方法 采用上-下剂量增减法(up-and-down procedure,UDP)测定1-乙炔基环己醇的急性经口毒性;通过观察染毒后细胞形态变化和细胞存活率判断1-乙炔基环己醇对体外细胞的毒性。采用小鼠骨髓微核试验,鼠伤寒沙门菌回复突变试验(salmonella typhimurium reverse mutation assay,Ames试验)和基于双腔室玻片体外染色体畸变试验检测1-乙炔基环己醇的遗传毒性。结果 1-乙炔基环己醇小鼠急性经口半数致死剂量(median lethal dose,LD50)为1 098 mg/kg·bw(95%CI:550~2 000 mg/kg·bw)。随着1-乙炔基环己醇染毒剂量增加,镜下观察到贴壁细胞逐渐圆缩或脱落,细胞数量逐渐减少。四甲基偶氮唑蓝(tetramethylazolyl blue,MTT)试验得出1-乙炔基环己醇对中国仓鼠肺细胞(chinese hamster lung cells,CHL)的半数抑制浓度(semi-inhibitory concentration,IC50)分别为1 970(+S9,6 h)、1 935(-S9,6 h)和1 835(-S9,24 h)μg/mL。Ames试验结果提示在±S9条件下,各个剂量组对TA97a、TA98、TA100、TA102 4株试验菌株均无致突变作用。小鼠骨髓细胞微核试验结果显示,雄性和雌性小鼠各个剂量组的含微核细胞率均值与阴性对照组相比较,差异均无统计学意义(P>0.05)。体外染色体畸变试验结果显示,在±S9(6 h)和-S9(24 h)3种处理方式下,各剂量组染色体畸变率与溶剂对照组相比,差异均无统计学意义(P>0.05)。结论 在本试验条件下,1-乙炔基环己醇急性经口毒性分级为低毒,在浓度500~2 500 μg/mL下产生细胞毒性且与剂量呈正相关性,但未见遗传毒性。

关键词: 1-乙炔基环己醇, 急性经口毒性, 细胞毒性, 遗传毒性

Abstract: Objective To analyze the acute toxicity and genotoxicity of 1-ethynylcyclohexanol,and provide toxicological data for its safety use. Methods The up and down procedure(UDP) was used to determine the acute oral toxicity of 1-ethynylcyclohexanol. The toxicity of 1-ethynylcyclohexanol to cells in vitro was evaluated by observing the changes in cell morphology and cell survival rate after exposure. The genotoxicity of 1-ethynylcyclohexanol was detected using mouse bone marrow micronucleus assay,salmonella typhimurium reverse mutation assay(Ames test),and in vitro chromosomal aberration assay based on double chamber slides. Results The median lethal dose(LD50) of acute oral toxicity of 1-ethynylcyclohexanol in mice was 1 098 mg/kg·bw(95%CI 550-2 000 mg/kg·bw).As the dose of 1-ethynylcyclohexanol increases,it was observed under the microscope that the adherent cell morphology gradually became round until most of the cells were autolysed,and the number of cells gradually decreases. The tetramethylazolyl blue(MTT) assay showed that the semi-inhibitory concentration(IC50) of 1-ethynylcyclohexanol on Chinese hamster lung cells(CHL) were 1 970(+S9,6 h)、1 935(-S9,6 h)和1 835(-S9,24 h)μg/mL.Ames test results indicated that under ± S9 conditions,each dose group had no mutagenic effect on the four test strains(TA979a、TA98、TA100、TA102). The average rates of micronucleus containing cells in male and female mice in the three dose groups had no statistically significant difference compared with the negative control group(all P>0.05). The results of the in vitro chromosome aberration test showed that under the three treatment methods of ±S9(6 h) and -S9(24 h),there were no statistical significance in chromosome aberration rates of each dose compared with negative control group(all P>0.05). Conclusion Under the conditions of this experiment,the acute oral toxicity of 1-ethynylcyclohexanol is classified as low toxicity. It exhibits cytotoxicity at concentrations of 500-2 500 μg/mL and is positively correlated with dose,but no genotoxicity was observed.

Key words: 1-ethynylcyclohexanol, Acute oral toxicity, Cytotoxicity, Genotoxicity

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