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Benzo[a]pyrene [B(a)P] is one of the most prevalent environmental carcinogens and genotoxic agents. However, the mechanisms of B(a)P-induced oxidative damage in cervical tissue are still not clear. The present study was to investigate the oxidative stress and DNA damage in cervix of ICR female mice induced by acute treatment with B(a)P. Oxidative stress was assayed by analysis of malondialdehyde (MDA),...
Polycyclic aromatic hydrocarbons (PAH) produced upon incomplete combustion of organic matter are suspected to be carcinogenic to humans. In the present work, we especially studied the genotoxicity of benzo[a]pyrene (B[a]P), pure or in mixtures, with emphasis placed on the contribution of oxidative stress and alkylation. A comparison was made between the extent of DNA strand breaks as determined by...
To identify potential biomarkers for the monitoring and risk assessment of benzo[a]pyrene (BaP), the oxidative stress-related DNA damage and p53 modification were investigated in human hepatoma HepG2 cells. Benzo[a]pyrene exposure induced a decrease in the cell viability, but increased the antioxidant enzyme activity as well as the DNA and lipid damage. The p53 protein activation appeared to have...
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