Results 151 to 160 of about 81,900,728 (183)
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PHARMACOKINETICS OF BENZO[a]PYRENE IN THE RAT
Journal of Toxicology and Environmental Health, Part A, 1998Groups of 4 male Wistar rats were dosed intravenously with 14C-labeled benzo[a]pyrene dissolved in an Emulphor/water vehicle at 3 different dose levels and killed at 1 of 15 specific time intervals from 5 min to 32 h after dosing. 14C-Radiolabel concentration-time data were obtained for blood, brain, adipose, heart, kidney, liver, lung, spleen, and ...
D, Moir +4 more
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Wheat Bran and the Induction of Intestinal Benzo(a)pyrene Hydroxylase by Dietary Benzo(a)pyrene
The Journal of Nutrition, 1989The mucosa of the intestine responds to polycyclic aromatic hydrocarbons (PAH) with the rapid induction of benzo(a)pyrene hydroxylase (BPH). Studies were conducted to determine if dietary fiber would reduce exposure of the intestine to dietary benzo(a)pyrene (BP) as indicated by intestinal BPH activity.
S K, Clinton, W J, Visek
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Analytical and Bioanalytical Chemistry, 2016
A first gas chromatography-tandem mass spectrometry (GC-MS/MS) method was designed for analysis of four tetrahydroxylated benzo[a]pyrene metabolites (benzo[a]pyrene-r-7,t-8,t-9,c-10-tetrahydrotetrol, benzo[a]pyrene-r-7,t-8,t-9,t-10-tetrahydrotetrol, benzo[a]pyrene-r-7,t-8,c-9,c-10-tetrahydrotetrol, and benzo[a]pyrene-r-7,t-8,c-9,t-10-tetrahydrotetrol ...
Nathalie, Grova +3 more
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A first gas chromatography-tandem mass spectrometry (GC-MS/MS) method was designed for analysis of four tetrahydroxylated benzo[a]pyrene metabolites (benzo[a]pyrene-r-7,t-8,t-9,c-10-tetrahydrotetrol, benzo[a]pyrene-r-7,t-8,t-9,t-10-tetrahydrotetrol, benzo[a]pyrene-r-7,t-8,c-9,c-10-tetrahydrotetrol, and benzo[a]pyrene-r-7,t-8,c-9,t-10-tetrahydrotetrol ...
Nathalie, Grova +3 more
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Histochemistry, 1974
A microspectrofluorometric approach in conjunction with microelectrophoretic injection of glucose-6-P (G6P), was used to study the effect of cultivation in a benzo(a)pyrene (BP)-containing medium on the metabolization of BP, by EL2 ascites cells. The fluorescence increase which follows the microinjection of G6P to single living cells.
J M, Salmon +3 more
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A microspectrofluorometric approach in conjunction with microelectrophoretic injection of glucose-6-P (G6P), was used to study the effect of cultivation in a benzo(a)pyrene (BP)-containing medium on the metabolization of BP, by EL2 ascites cells. The fluorescence increase which follows the microinjection of G6P to single living cells.
J M, Salmon +3 more
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Nature, 1983
It is fifty years since the publication of the report on the isolation, from coal tar, and identification of the potent chemical carcinogen benzo(a)pyrene, the culmination of over 10 years of research instigated and directed by E.L. Kennaway. The events leading to that discovery are of interest in themselves.
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It is fifty years since the publication of the report on the isolation, from coal tar, and identification of the potent chemical carcinogen benzo(a)pyrene, the culmination of over 10 years of research instigated and directed by E.L. Kennaway. The events leading to that discovery are of interest in themselves.
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2014
Cigarette smoking is the leading cause of preventable death in the United States. While there are more than 4,000 chemicals found in tobacco smoke, the polycyclic aromatic hydrocarbons (PAHs) have been clearly demonstrated to contribute to smoking-related cancers.
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Cigarette smoking is the leading cause of preventable death in the United States. While there are more than 4,000 chemicals found in tobacco smoke, the polycyclic aromatic hydrocarbons (PAHs) have been clearly demonstrated to contribute to smoking-related cancers.
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Benzo[a]pyrene 7,8-dihydrodiol is more carcinogenic than benzo[a]pyrene in newborn mice
Nature, 1977THE pioneering research by James and Elizabeth Miller relating the carcinogenic effects of many chemicals to the metabolism of these compounds to reactive intermediates which bind to critical cellular compoenents1,2 led to studies of the nature and chemical structure of these reactive metabolites (ultimate carcinogens) and their metabolic precursors ...
J, Kapitulnik +4 more
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Analytical Biochemistry, 1976
Abstract A simple radioassay method is described to measure specifically and quantitatively the metabolic activation of the carcinogen benzo(a)pyrene (BP) to a derivative which reacts covalently with a macromolecular target molecule (protein). The NADPH2-dependent formation of this macromolecule-hydrocarbon complex during incubation with rat liver ...
F B, Thomas, N B, Furlong
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Abstract A simple radioassay method is described to measure specifically and quantitatively the metabolic activation of the carcinogen benzo(a)pyrene (BP) to a derivative which reacts covalently with a macromolecular target molecule (protein). The NADPH2-dependent formation of this macromolecule-hydrocarbon complex during incubation with rat liver ...
F B, Thomas, N B, Furlong
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Benzo(a)pyrene diolepoxide-haemoglobin and albumin adducts at low levels of benzo(a)pyrene exposure
Biomarkers, 2000A biomonitoring study was conducted to simultaneously measure individual benzo(a)pyrene (BaP) exposure in 50 office employees, not occupationally exposed to polycyclic aromatic hydrocarbons (PAH), using personal samplers and the formation of (+) r-7, t-8-dihyroxy-t-9,t-10-epoxy-7,8,9,10-tetrahydrobenzo(a)pyrene (BPDE) adducts to haemoglobin (BPDE-Hb ...
R. Pastorelli +7 more
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Biochemical Pharmacology, 1986
Previously reported inhibitors of benzo[a]pyrene (BaP) mutagenicity in Salmonella typhimurium strain TA98 were tested for their effectiveness against the mutagenicity of 6-methyl-benzo[a]pyrene (6-CH3-BaP), 6-hydroxymethyl-benzo[a]pyrene (6-CH2OH-BaP) and 6-acetoxymethyl-benzo[a]pyrene (6-CH3COOCH2-BaP). Dose-response curves obtained for phenothiazine (
J H, Bayless +3 more
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Previously reported inhibitors of benzo[a]pyrene (BaP) mutagenicity in Salmonella typhimurium strain TA98 were tested for their effectiveness against the mutagenicity of 6-methyl-benzo[a]pyrene (6-CH3-BaP), 6-hydroxymethyl-benzo[a]pyrene (6-CH2OH-BaP) and 6-acetoxymethyl-benzo[a]pyrene (6-CH3COOCH2-BaP). Dose-response curves obtained for phenothiazine (
J H, Bayless +3 more
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