Abstract:A radioimmunoassay using monoclonal antibodies (MAb) against 0(6)-medGuo and 0(6)-etdGuo enabled the presence of these DNA adducts to be detected in human tissues. With this methodology and with 1 mg of hydrolysed DNA it is possible to detect approximately 25 fmol 0(6)-medGuo or 12.5 fmol 0(6)-etdGuo per mg DNA. The analysis comprised a total of 37 human tissue specimens derived from patients who underwent surgery for cancer of the oesophagus in Linxian County (People's Republic of China); for comparison 12 ti… Show more
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