3,2'-Dimethyl-4-aminobiphenyl and 3,2'-dimethyl-4-nitrosobiphenyl were administered by subcutaneous injection in peanut oil to 2 groups of 15 male and 15 female Syrian golden hamsters. The total dose of each compound was 5.6 mmol/kg. In the group treated with 3,2'-dimethyl-4-aminobiphenyl, 24 animals
High-performance liquid chromatography with electrochemical detection, a highly sensitive and specific method, was used to determine N-hydroxy-o-toluidine and o-toluidine in the urines of male F344 rats after the administration of 0.82 mmol/kg of o-toluidine or o-nitrosotoluene. In a six hour
o-Toluidine hydrochloride and one of its metabolites, o-nitrosotoluene, were administered in the diet (0.028 mol/kg diet) to 2 groups of 30 male F-344 rats for 72 weeks. o-Nitrosotoluene induced significantly more tumors of the bladder (16/30 rats) and liver (20/30)
Archives of biochemistry and biophysics, 372(1), 97-106 (1999-11-24)
Mechanisms of DNA damage by metabolites of carcinogenic o-toluidine in the presence of metals were investigated by the DNA sequencing technique using (32)P-labeled human DNA fragments. 4-Amino-3-methylphenol, a major metabolite, caused DNA damage in the presence of Cu(II). Predominant cleavage
Archives of biochemistry and biophysics, 436(2), 265-275 (2005-03-31)
The inactivation of cytochrome P450 enzymes by cyclopropylamines has been attributed to a mechanism involving initial one-electron oxidation at nitrogen followed by scission of the cyclopropane ring leading to covalent modification of the enzyme. Herein, we report that in liver
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