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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2004-11-19
pubmed:abstractText
The objective of this study was to examine the association between the genetic polymorphism of glutathione S-transferase (GST) M1, T1 and N-acetyltransferase 2 (NAT2) genes and urothelial cancer risk in relation to smoking status. In this study, 325 Japanese patients with urothelial transitional cell carcinoma and 325 healthy controls were compared for frequencies of GSTM1, T1 and NAT2 genotypes. The frequencies of GSTM1 null genotype and NAT2 slow genotype were significantly higher in the cases than in the controls (adjusted odds ratio (OR) 1.37, 95% confidence interval (CI) 1.01-1.87, adjusted OR 3.09, 95% CI 1.69-5.63, individually). Furthermore, the risk of GSTM1 null genotype and NAT2 slow genotype was higher among smokers (adjusted OR 1.48, 95% CI 1.01-2.15, adjusted OR 4.28, 95% CI 1.96-9.36, individually). The regression analysis of cancer risk as a function of the amount of smoking showed that the susceptibility of people who had GSTM1 null genotype increased from 45 pack-years, while the susceptibility of people with NAT2 intermediate or slow genotype increased rapidly from 25 pack-years, compared with non-smokers. A multiplicative interaction between NAT2 intermediate or slow genotype and pack-years of smoking was found (P<0.001), but GSTM1 null genotype was not (P=0.06). Our results indicate that the GSTM1 null genotype and NAT2 intermediate or slow genotype are associated with an increased risk of urothelial cancer in relation to smoking amounts. Furthermore, the interaction between NAT2 intermediate or slow genotype and pack-years of smoking has a strong impact on urothelial cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0959-8278
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
509-14
pubmed:dateRevised
2010-9-8
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Glutathione S-transferase (GST) M1, T1 and N-acetyltransferase 2 (NAT2) polymorphisms and urothelial cancer risk with tobacco smoking.
pubmed:affiliation
Department of Public Health, Miyazaki Medical College, University of Miyazaki, 5200 Kihara, Miyazaki 889-1692, Japan.
pubmed:publicationType
Journal Article