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3R4F参比卷烟主流烟气总粒相物的Ames试验

Journal of Zhengzhou University(Medical Sciences)(2013)

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Abstract
目的:研究3R4F参比卷烟主流烟气总粒相物(TPM)的致突变作用。方法:采用4种鼠伤寒沙门氏菌菌株TA97、TA98、TA100和TA102,对3R4F参比卷烟的TPM进行Ames试验;筛选出对TPM较敏感的菌株为研究对象,比较体积分数5%和10%的S9混合液的活化能力及不同预培养时间(0、20、40和60min)的致突变作用。结果:在加S9的情况下,TA98和TA100对TPM较为敏感。体积分数5%和10%的S9混合液的致突变作用无明显差异,37℃下预培养20min效果更佳。结论:以TA98和TA100为研究对象,选择体积分数5%的S9混合液,采用预培养改良的Ames试验可有效测定卷烟烟气TPM的致突变作用。
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Key words
Ames assay,cigarette mainstream smoke,total particulate matter,mutagenicity
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