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Induction of chromosome breaks in cultured normal human leukocytes by potassium arsenite, hydroxyurea and related compounds.
J J Oppenheim et al.
Cancer research, 25(7), 980-985 (1965-08-01)
Katsuhisa Sakano et al.
Free radical biology & medicine, 33(5), 703-714 (2002-09-05)
Carcinogenic urethane (ethyl carbamate) forms DNA adduct via epoxide, whereas carcinogenic methyl carbamate can not. To clarify a mechanism independent of DNA adduct formation, we examined DNA damage induced by N-hydroxyurethane, a urethane metabolite, using 32P-5'-end-labeled DNA fragments. N-hydroxyurethane induced
S Rossberger et al.
Mutation research, 145(3), 201-207 (1985-05-01)
N-Hydroxyurea and two structurally related compounds, acetohydroxamic acid and N-hydroxyurethane, were investigated for their potential to induce DNA repair synthesis in primary rat hepatocyte cultures. Repair was determined as repair replication by means of the bromodeoxyuridine density-shift method and, in
K Tatsumi et al.
Journal of pharmacobio-dynamics, 5(11), 916-920 (1982-11-01)
The present study demonstrated the metabolism of N-hydroxyurethane by cell-free preparations, i.e., 9000 X g supernatant, cytosol and microsomes, from guinea pig livers. Under anaerobic conditions, the metabolizing activities of these preparations were enhanced markedly by addition of both an
Timing of chemically induced neoplasia in mice revealed by the antineoplastic action of caffeine.
T Nomura
Cancer research, 40(4), 1332-1340 (1980-04-01)
Kinetic applications of electron paramagnetic resonance spectroscopy. 28. N-Alkoxy-N-alkylamino, N-alkoxyamino, and N-alkoxyanilino radicals.
Kaba RA and Ingold KU
Journal of the American Chemical Society, 98(23), 7375-7380 (1976)
P M Weiss et al.
Biochemistry, 23(19), 4346-4350 (1984-09-11)
The true substrate for the pyruvate kinase catalyzed phosphorylation of hydroxylamine at high pH which is activated by bicarbonate is shown to be N-hydroxycarbamate, since a lag is seen when the reaction is started by the addition of bicarbonate or
K Sugihara et al.
Journal of pharmacobio-dynamics, 6(9), 677-683 (1983-09-01)
The present study provides the evidence that liver aldehyde oxidase in the presence of its electron donors can catalyze the reduction of N-hydroxyurethane to urethane under anaerobic conditions. Guinea pig liver 9000 X g supernatant and cytosol, but not liver
Comparative carcinogenicities and mutagenicities of vinyl carbamate, ethyl carbamate, and ethyl N-hydroxycarbamate.
G A Dahl et al.
Cancer research, 40(4), 1194-1203 (1980-04-01)
Marius Stefan et al.
Journal of materials science. Materials in medicine, 22(4), 789-796 (2011-03-29)
In the present study, we report enhanced antimicrobial properties of 29 and 23 nm silver nanoparticles (Ag NPs) obtained by electrochemical synthesis in poly(amide-hydroxyurethane) media. Antibacterial activity assessed by disk diffusion method indicates that silver nanoparticles produced inhibition zones for
T Nomura et al.
Cancer research, 43(11), 5156-5162 (1983-11-01)
To learn the effects of tumor inhibitors on chemically induced malformations, caffeine, antipain, and 13-trans-retinoic acid were given to pregnant ICR/Jcl mice after a single dose of urethan, N-hydroxyurethan, N-methyl-N-nitrosourea, N-ethyl-N-nitrosourea, or 4-nitroquinoline 1-oxide, which induces about 50% of the
Y Sharief et al.
Mutation research, 126(2), 159-167 (1984-04-01)
Ethyl carbamate (EC) and two related carcinogens, ethyl N-hydroxycarbamate (ENHC) and vinyl carbamate (VC), caused species-specific increases in sister-chromatid exchange (SCE) formation in the bone marrow cells of rodents. Mice exposed to 400 mg/kg of EC had SCE increases of
S W Cha et al.
Toxicology letters, 115(3), 173-181 (2000-05-18)
Ethyl carbamate, a potent carcinogen, has been characterized to be metabolized by cytochrome P450 (P450) and esterase. It has recently been demonstrated that P450 may activate ethyl carbamate to immunotoxic metabolites. To investigate the role of esterase in ethyl carbamate-induced
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