Influence of Glutathione S-Transferase M1 and T1 Genotypes on Larynx Cancer Risk among Korean Smokers
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Abstract
Glutathione S-transferase (GST) isoenzymes are involved in the detoxification of major carcinogens present in tobacco smoke. It is thus conceivable that deficiency in GST activity due to homozygous deletions of the GSTM1 and GSTT1 genes (the null genotypes) may modulate susceptibility to smoking-induced cancers. The influence of the GSTM1 and GSTT1 null genotypes on larynx cancer risk among the Korean population were evaluated using peripheral blood DNA from 82 larynx cancer patients and 63 healthy controls, all of whom were male current smokers. Increased larynx cancer risk was related to the GSTM1 null genotype (odds ratio (OR)=3.53, 95% confidence interval (CI)=1.27−9.83). The OR associated with the GSTT1 null genotype was also increased, but did not reach statistical significance (OR=1.83, 95% CI=0.70−4.79). Individuals lacking both the GSTM1 and GSTT1 genes were at a significantly higher risk for larynx cancer than individuals with both genes present (OR=4.04, 95% CI=1.33−12.30). These data confirm that the GSTM1 null genotype is an important risk modifier for larynx cancer among Korean smokers and combined GSTM1 and GSTT1 null genotypes could be a useful predictor of genetic susceptibility to larynx cancer.
Copyright © 2000 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- The Basis of the Medicine of Tomorrow "Validating and Using Pharmacogenomics" Joint IFCC-Roche Diagnostics Conference, Kyoto, Japan, 1619 April 2000
- Diagnostics and the Future of Medicine
- Operomics: Molecular Analysis of Tissues from DNA to RNA to Protein
- Idiosyncratic Reactions to Drugs: Can Medicine Response Profiles Provide a Dynamic Drug Surveillance System?
- Hunting for Disease Genes in Multi-Functional Diseases
- Familial Studies on the Genetics of Cardiovascular Diseases: the Stanislas Cohort
- Quantitative PCR
- Gene Amplification as Means for Determining Therapeutic Strategies in Human Cancers
- Apolipoprotein E Polymorphisms and Concentration in Chronic Diseases and Drug Responses
- Angiotensin I-Converting Enzyme Gene Polymorphism and Drug Response
- Drug-Metabolizing Enzymes, Polymorphisms and Interindividual Response to Environmental Toxicants
- Database Analysis and Gene Discovery in Pharmacogenetics
- How to Manage Individualized Drug Therapy: Application of Pharmacogenetic Knowledge of Drug Metabolism and Transport
- P-Glycoprotein and Bioavailability-Implication of Polymorphism
- Cancer Therapy and Polymorphisms of Cytochromes P450
- Polymorphisms in UDP Glucuronosyltransferase Genes: Functional Consequences and Clinical Relevance
- The Human Multidrug Resistance-Associated Protein (MRP) Gene Family: From Biological Function to Drug Molecular Design
- Ethnic Differences in Drug Metabolism
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- CYP2D6 Genotyping in Patients on Psychoactive Drug Therapy
- Genotyping of CYP2D6 in Parkinsons's Disease
- Rapid Analysis of CGG Repeat Length in the FMR1 Gene
- Multiplex In-cell Reverse Transcription-Polymerase Chain Reaction for the Simultaneous Detection of p210 and p190 BCR-ABL mRNAs in Chronic Myeloid Leukemia and Philadelphia-Positive Acute Lymphoblastic Leukemia Cell Lines
