Abstract
The present study used a rapid and single-step method for genotyping of NAD(P)H quinone oxidoreductase (NQO1) codon 609 polymorphism using real-time polymerase chain reaction (PCR)-analysis and subsequent melting curve analysis for the analysis of allelic distribution of NQO1. The design was a case control study of 323 Caucasians with colorectal cancer and 205 healthy controls. There was no difference in the frequencies of the mutated NQO1 allele (NQO1*2): 0.190 for control individuals and 0.195 for cancer patients, respectively (P=0.947). When this allelic distribution was further compared between non-smoking and smoking colorectal cancer patients, it appeared that the frequency of the wild-type allele NQO1*1 was higher in the smoking than in the non-smoking group [Odds ratio (OR), 0.434; 95% confidence interval (CI), 0.13–1.42]. This observation may suggest a protective role of the NQO1 wild-type allele in colon cancer susceptibility of individuals exposed to NQO1-inducing chemicals.
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Received: 25 September 1999 / Accepted: 12 October 1999
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Harth, V., Donat, S., Ko, Y. et al. NAD(P)H quinone oxidoreductase 1 codon 609 polymorphism and its association to colorectal cancer. Arch Toxicol 73, 528–531 (2000). https://doi.org/10.1007/s002040050004
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DOI: https://doi.org/10.1007/s002040050004