Inhibition of nitrobenzene-induced DNA and hemoglobin adductions by dietary constituents | |
Li Hongli ; Cheng Yan ; Wang Haifang ; Sun Hongfang ; Liu Yuanfang ; Liu Kexin ; Peng Shixiang | |
2003 | |
英文摘要 | Nitrobenzene (NB), a widely used industrial chemical, is a likely human carcinogen. Many dietary constituents can suppress the DNA-adduction, acting as the inhibitors of cancer. In this study, we investigated the inhibitory effects of vitamin C (VC), vitamin E (VE), tea polyphenols (TP), garlic squeeze, curcumin, and grapestone extract on NB-DNA and NB-hemoglobin (Hb) adductions in mice using an ultrasensitive method of accelerator mass spectrometry (AMS) with 14C-labelled nitrobenzene. All of these dietary constituents showed their inhibitory effects on DNA or Hb adduction. VC, VE, TP and grapestone extract could efficaciously inhibit the adductions by 33-50%, and all of these six agents could inhibit Hb adduction by 30-64%. We also investigated resveratrol, curcumin, VC and VE as inhibitors of NB-DNA adduction in vitro using liquid scintillation counting technique. These agents in the presence of NADPH and S9 components also pronouncedly blocked DNA adduction in a dose-dependent profile. Our study suggests that these seven constituents may interrupt the process of NB-induced chemical carcinogenesis.; SCI(E); EI; PubMed; 0; 3; 291-8; 58 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/200154] |
专题 | 化学与分子工程学院 |
推荐引用方式 GB/T 7714 | Li Hongli,Cheng Yan,Wang Haifang,et al. Inhibition of nitrobenzene-induced DNA and hemoglobin adductions by dietary constituents[J],2003. |
APA | Li Hongli.,Cheng Yan.,Wang Haifang.,Sun Hongfang.,Liu Yuanfang.,...&Peng Shixiang.(2003).Inhibition of nitrobenzene-induced DNA and hemoglobin adductions by dietary constituents.. |
MLA | Li Hongli,et al."Inhibition of nitrobenzene-induced DNA and hemoglobin adductions by dietary constituents".(2003). |
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