【摘要】 本文报告四会县醃菜二氯甲烷提取液的诱变性试验。醃菜样本提取液Ⅰ号引起姐妹染色单体交换(SCE)率及微核(MN)率显著升高,醃菜样本提取液Ⅱ号亦引起SCE率明显升高,但MN率仅略有升高。化学分析表明,该两份醃菜的挥发性亚硝胺含量分别为37.83、33.38 ppb。醃菜提取液的诱变性似不能单用亚硝胺来解释。实验结果提示,鼻咽癌高发区四会县醃菜中可能含有除挥发性亚硝胺以外的其他诱变性物质。更多还原

【Abstract】 The mutagenic effect of dichloromethane extract of pickles collected from Sinhui County was examined. Sample I markedly increased the frequency of sister chromatid exchange (SCE) and the rate of micronucleus (MN) in mice. Sample II also induced an increase in SCE frequency significantly, but the increase in MN rate was slight. Chemical analyses showed that two samples of pickles contained 37.83ppb and 33.38ppb of volatile nitrosamines, respectively, which alone could not explain the observed mutagenic effect. These results sug ested that the pickled vegetables taken from NPC high-risk area, Sihui County, may contain some mutagen(s) besides volatile nitrosamines.更多还原