کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2148194 | 1089543 | 2012 | 5 صفحه PDF | دانلود رایگان |
Nicotine has been reported to cause acute toxicity and to present long-term risks, such as chromosomal damage and genetic instability. The genotoxicity of nicotine may be mediated partly by an oxidative mechanism. We have evaluated the effects of the antioxidant vitamin C on nicotine-induced genotoxicity in mice. The comet assay and the micronucleus test were used to assess the effects of nicotine (15 mg/kg) at different exposure times (2, 4, and 24 h in the comet assay; 24 h in the micronucleus test). Pretreatment with vitamin C 24 h before nicotine exposure strongly protected mice against nicotine-induced DNA damage.
► Genotoxicity effect of nicotine in vivo.
► Vitamin C significantly reduces DNA damage caused by nicotine in mice by about 99%.
► Nicotine has been identified as genotoxic and its genotoxicity may be partly mediated by an oxidative mechanism.
Journal: Mutation Research/Genetic Toxicology and Environmental Mutagenesis - Volume 744, Issue 2, 15 May 2012, Pages 140–144