Current smoking, occupation, N-acetyltransferase-2 and bladder cancer: a pooled analysis of genotype-based studies.
Cancer Epidemiol Biomarkers Prev
; 10(12): 1249-52, 2001 Dec.
Article
em En
| MEDLINE
| ID: mdl-11751441
ABSTRACT
The aim of this study was to investigate the association of NAT2 gene polymorphism with bladder cancer using the data derived from the International Project on Genetic Susceptibility to Environmental Carcinogens. Four case control studies conducted in four European countries, plus two case series, one from England and one from Germany, for a total of 1530 cases and 731 controls (all Caucasian) were included. The interaction between NAT2 and bladder cancer considering smoking habits and occupational exposure was studied. There was a significant association between NAT2 and bladder cancer (odds ratio 1.42, 95% confidence interval 1.14-1.77), with a slightly significant heterogeneity among studies. However, heterogeneity disappeared when smokers were divided into current and ex-smokers. The risk of cancer was elevated in smokers and occupationally exposed subjects, with the highest risk among slow acetylators. The increase in risk was limited, in fact, to current smokers (odds ratio = 1.74, 95% confidence interval 0.96-3.15). This analysis confirms that the NAT2 genotype is a risk factor for bladder cancer by interacting with smoking or occupational exposures. Our observation suggests that NAT2 is not a risk factors per se but modulates the effect of carcinogens contained in tobacco smoke (probably arylamines) or associated with occupational exposures.
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Bases de dados:
MEDLINE
Assunto principal:
Arilamina N-Acetiltransferase
/
Neoplasias da Bexiga Urinária
/
Carcinógenos Ambientais
/
Fumar
/
Exposição Ocupacional
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Cancer Epidemiol Biomarkers Prev
Assunto da revista:
BIOQUIMICA
/
EPIDEMIOLOGIA
/
NEOPLASIAS
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Itália