【摘要】 背景与目的:讨论精子SCGE方法的实用性,对检验指标进行比较。材料与方法:选择不同浓度的已知断裂剂(H2O2,MMS),对人精子进行体外染毒、小鼠进行体内染毒,采用SCGE检测精子DNA损伤,选择3种不同检测指标。结果:对检测指标进行相关分析,结果显示,DNA头部百分比与彗星尾长、尾矩间存在相关关系。以DNA头部百分比为指标,方差分析表明,染毒剂量存在统计学差异;q检验显示,剂量组间差异存在统计学意义;对检测指标与染毒剂量的回归方程有统计学意义。结论:改进的精子SCGE法可以用于化合物遗传毒性评价。检测指标间存在相关关系,在具体实践中,可根据条件选择检验指标。更多还原

【Abstract】 BACKGROUND & AIM: To assess whether the modified SCGE can be used in genetic toxicology. MATERIAL AND METHODS: To detect DNA damage induced by oxidant peroxide in human sperm in vitro and methyl methanesulfonate in mouse in vivo by using the modified SCGE. RESULTS: The results showed high relationship correlation among the head DNA percentage, comet length and the tail moment.Dose response relationship existed. CONCLUSION: The modified SCGE could be used to detect sperm DNA damage.更多还原