<ul> <li><strong>Biomarkers of Cigarette Smoking and DNA Methylating Agents:</strong> Study on 7-Methyladenine highlights its role as a biomarker of DNA damage from exposure to methylating agents (Harroun et al., 2017).</li> </ul>
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Relatively simple and rapid analytical procedures involving two sequential HPLC separations were developed for the isolation of methylated purines in the urine of rats administered radiolabeled methylating carcinogens. Following a dose of [3H]N-methyl-N-nitrosourea (MNU), 7-methyl-adenine (m7Gua) was detected by chromatography
Bioscience, biotechnology, and biochemistry, 76(4), 828-830 (2012-04-10)
Adenine had a concentration-dependent relaxation action on the phenylephrine-contracted aorta ring, with an EC(50) value of 0.40±0.12 mM. This effect was also observed in the endothelium-denuded aorta. Among the adenine analogues, N-methyladenine and benzimidazole still evoked an apparent relaxation effect
Earlier studies showed that urine of rats which had been injected with the methylating agent N-[3H-methyl]-N-nitrosourea contained a previously undetected metabolic product, 7-[3H-methyl]adenine. This methylpurine, undoubtedly derived from alkylation of nucleic acids followed by depurination, was not labeled when 14C-methyl-labeled
Background: Mutations in the oncosuppressor gene BReast CAncer susceptibility gene 2 (BRCA2) predispose to aggressive forms of prostate cancer which show poor response to taxane-based therapy, the standard treatment for castration-resistant, aggressive prostate cancer. Herein, we addressed the question whether
We have developed a procedure for isolating and quantifying 7-methyladenine from rat urine following the administration to the rat of methylating agents, such as dimethylnitrosamine. Urinary 7-methyladenine and its trideutero isomer, added as an internal standard, were precipitated with silver
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