Repair of O6-methylguanine in rat liver DNA is enhanced by pretreatment with single or multiple doses of aflatoxin B1.
Chu, Yung-Hua Craig, Alister W O'Connor, Peter J
Chu, Yung-Hua
Craig, Alister W
O'Connor, Peter J
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Abstract
Pretreatment of rats by the repeated administration of certain alkylating carcinogens has been shown to stimulate the removal of O6-alkylguanine from hepatic DNA. Prolonged feeding with the aromatic amide 2-acetylaminofluorene has a similar effect. In this report, aflatoxin B1, an agent from another chemically distinct class of carcinogen, is shown to be capable of stimulating the repair of O6-methylguanine in hepatic DNA. The sensitivity of this system is shown by the fact that this repair response can be fully stimulated as early as 1 day after treatment with a single dose.
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1981-06
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Repair of O6-methylguanine in rat liver DNA is enhanced by pretreatment with single or multiple doses of aflatoxin B1. 1981, 43 (6):850-5 Br J Cancer