The mobilities of 24 potential metabolites of benzo[a]pyrene were examined with high pressure liquid chromatography. Twelve phenols, five quinones, four dihydrodiols, and three oxides were studied. The chromatographic procedure employed allowed the separation and quantitation of benzopyrene metabolites into three major groups consisting of phenols, quinones, and dihydrodiols. Two of the benzopy...

A significant increase in putrescine was noted in the urine of mice with experimental s.c. tumors induced by a single injection of 3,4-benzopyrene solution (2.52 mg of 3,4-benzopyrene in 0.5 ml of tricaprylin). When 10 mg of putrescine were added to the 3,4-benzopyrene solution, the development of tumors was completely inhibited and the increase of urinary putrescine in mice was suppressed simu...

Lung cancer is one of the cancers that have the highest incidence and the highest mortality rate, and it is of great interest to identify ways to prevent its occurrence. We had established an animal model by using 3,4-benzopyrene intra-pulmonary injection in our previous study, and had observed that the rats lung carcinoma incidence and multiplicity were significantly reduced by green tea admin...

Background: Prolonged exposure to environmental toxicants like endocrine-disrupting chemicals has been linked several ovarian pathologies. Exposure may start at any time of life from the fetal stage adulthood resulting in various health complications The purpose our study is compare concentration levels and association benzopyrene, bisphenol A genistein patients with tumors normal control group...

BACKGROUND Interleukin-8 (IL-8) functions as a major chemoattractant and plays pivotal roles in the initiation and development of chronic obstructive pulmonary disease (COPD), and tobacco smoke is a most risk factor contributing to the development of COPD. Hence, we have screened some of the tobacco smoke-derived chemical compounds that potentially induce the production of IL-8 in human bronchi...

The solvent dependence of the photooxidation of tryptophan and 3,4-benzopyrene in aqueous solutions was studied by quantum yield measurements. When the hydrocarbon is dissolved in aqueous solution of caffeine, the quantum yields indicate a 3,4-benzopyrene photosensitized trypto­ phan oxidation instead of a photocooxidation, which is indicated in aqueous solution of sodium dodecylsulfate. The sa...

This study was conducted to investigate the possibility of using alcoholic extract Lactuca serriole as a protective agent against chemical compound benzopyrene that causes cancer. Alkanes are dominant group in addition presence phenol, alkene and ester, highest concentration (1-Heneicosyl formate) (42.579) lowest (1,6-Octadien3-ol, 3,7-dimethyl-, 2- aminobenzoate) by (1.009%), results showed si...

The risk of lung cancer related to asbestos exposure has been shown to increase disproportionately by cigarette smoking, suggesting a synergistic effect. Differing lengths of NIEHS chrysotile with benzopyrene [B(a)P, B(e)P] (organic by-products of combustion) were applied on normal human fibroblasts (cell line CI) to test for cytotoxicity (survival determined by colony-forming efficiency), bind...

Cigarette smoking during pregnancy has several impacts on fetal development, including teratogenic effects. The objective of this study was to assess whether the toxic substances (cotinine and polycyclic aromatic hydrocarbons) found in pregnant smokers are transmitted to their fetuses. The outcomes were analyzed measuring cotinine and 1-hydroxypyrene in the amniotic fluid and maternal urine, be...