We tested the ability of phenobarbital and two liver carcinogens, acetoxime and 1-nitroso-5,6-dihydrouracil (NDHU), to induce hyperplastic liver nodules (HLN) in MRC-Wistar and Wistar rats, using a system that included a single diethylnitrosamine (DEN) treatment, partial hepatectomy, and administration of
The hepatocarcinogens 2-nitropropane and acetoxime have previously been found to induce a specific and qualitatively identical pattern of base damage in rat liver DNA and RNA, including the induction of increased levels of 8-hydroxyguanine. Because both 2-nitropropane and acetoxime are
Nitric oxide : biology and chemistry, 5(4), 413-424 (2001-08-04)
Ketoximes undergo a cytochrome P450-catalyzed oxidation to nitric oxide and ketones in liver microsomes. In addition, nitric oxide synthase (NOS) can catalyze the oxidative denitration of the >C=N-OH group of amidoximes. The objective of this work was to characterize the
Preparation of adducts from nicotinamide adenine dinucleotide and a number of oximes is described; these include acetoxime, pyruvatoxime, cyclohexanoxime, cyclopentanoxime. These adducts are closely related to the corresponding NAD-ketone adducts in their spectra properties, but they are stable in acid
Chemical research in toxicology, 10(12), 1420-1426 (1998-01-23)
Previously, the secondary nitroalkane 2-nitropropane, a strong hepatocarcinogen in rats, had been shown to induce the formation of 8-aminoguanine in both DNA and RNA of rat liver through a sulfotransferase-mediated pathway. This pathway was postulated to convert the carcinogen into
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