Polymorphism of N-acetyltransferase 2 (NAT2) gene polymorphism in shanghai population: occupational and non-occupational bladder cancer patient groups / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
;
(12): 291-298, 2004.
Artigo
em Inglês
| WPRIM
| ID: wpr-329633
ABSTRACT
<p><b>OBJECTIVE</b>Arylamine N-acetyltransferases (NATs) are involved in the detoxification of aromatic amines and hydrazine. In order to explore the possible association of NAT2 polymorphism with bladder cancer risk in benzidine exposed or non-exposed Chinese individuals, healthy subjects, subjects with bladder cancer of a former benzidine exposed cohort in Shanghai dyestuff industry and a group of bladder cancer patients without known occupational exposure to aromatic amines were genotyped for NAT2 gene polymorphism.</p><p><b>METHODS</b>NAT2 genotyping was performed with a set of RFLP procedures at seven major polymorphic loci of gene coding area G191A, C282T, T341C, C481T, G590A, A803G and G857A.</p><p><b>RESULTS</b>The wild allele NAT2 *4 was the most prevalent allele (59%) in healthy individuals. The alleles NAT2*6A and NAT2*7B were also frequently observed (21% and 17%, respectively). In contrast to Caucasians, the percentage of slow acetylators was lower (12% in Chinese vs. 58% in Caucasians, P < 0.001). No relevant differences were observed for homogenous rapid, heterogeneous rapid/slow and homogeneous slow acetylation genotypes between the healthy subjects and both groups of bladder cancer patients.</p><p><b>CONCLUSION</b>The present work did not support the association of slow acetylating genotypes of NAT2 gene with elevated risk of bladder cancer in Chinese whereas it was documented as an important genetically determined risk factor in Caucasians. Different mechanisms might play a role in individual susceptibility to bladder cancer related with aromatic amine exposure in various races or ethnic groups.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Polimorfismo Genético
/
Arilamina N-Acetiltransferase
/
Benzidinas
/
Neoplasias da Bexiga Urinária
/
Estudos de Casos e Controles
/
Indústria Química
/
China
/
Epidemiologia
/
Exposição Ocupacional
/
Predisposição Genética para Doença
Tipo de estudo:
Estudo observacional
/
Fatores de risco
Limite:
Humanos
País/Região como assunto:
Ásia
Idioma:
Inglês
Revista:
Biomedical and Environmental Sciences
Ano de publicação:
2004
Tipo de documento:
Artigo
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