A note on the physiological background of the ethylene oxide adduct 7-(2-hydroxyethyl)guanine in DNA from human blood

被引:20
|
作者
Bolt, HM
Leutbecher, M
Golka, K
机构
[1] Institut für Arbeitsphysiologie, Universität Dortmund, D-44139 Dortmund
关键词
ethylene; ethylene oxide; 7-(2-hydroxyethyl)guanine; DNA adducts;
D O I
10.1007/s002040050451
中图分类号
R99 [毒物学(毒理学)];
学科分类号
100405 ;
摘要
A newly developed high-performance liquid chromatography (HPLC) method involves derivatization with phenylglyoxal and fluorescence detection, using 7-methylguanine as internal standard. The physiological background of the adduct 7-(2-hydroxyethyl)guanine in DNA isolated from human blood was determined by this method. In five persons the range of the adduct was between 2.1 and 5.8 pmol/mg DNA (mean 3.2). This finding is consistent with previous data obtained by others, using different analytical methods, and points to an intrinsic carcinogenic risk due to endogenous ethylene oxide.
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页码:719 / 721
页数:3
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