Polymorphisms of glutathione S-transferase Mu 1 (GSTM1), Theta 1 (GSTT1), and Pi 1 (GSTP1) genes and epithelial ovarian cancer risk.
Dis Markers
; 33(3): 155-9, 2012.
Article
em En
| MEDLINE
| ID: mdl-22960333
ABSTRACT
BACKGROUND:
Exposure of ovarian cells to estrogen, which is detoxified by glutathione S-transferases (GSTs), has been associated with epithelial ovarian cancer (EOC) development.OBJECTIVES:
We tested in this study whether the GSTM1, GSTT1 and GSTP1 Ile105Val polymorphisms alter the risk of EOC. MATERIALS ANDMETHODS:
Genomic DNA from 132 EOC patients and 132 controls was analyzed by polymerase chain reaction and restriction fragment length polymorphism methods. The differences between groups were analyzed by χRESULTS:
The frequencies of GSTP1 Ile/Ile (57.6% versus 45.5%, P=0.03), GSTM1 null plus GSTP1 Ile/Ile (43.5% versus 25.8%; P=0.03) and GSTM1 null plus GSTT1 null plus GSTP1 Ile/Ile (30.3% versus 7.7%; P=0.007) genotypes were higher in patients than in controls. Individuals with the respective genotypes had a 1.80 (95% CI 1.06-3.06), 2.38 (95% CI 1.08-5.24) and 11.28 (95%CI 1.95-65.30)-fold increased risks of EOC than those with the remaining genotypes.CONCLUSIONS:
Our data present preliminary evidence that GSTM1, GSTT1 and GSTP1 polymorphisms, particularly in combination, constitute important inherited EOC determinants in individuals from Southeastern Brazil.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Ovarianas
/
Polimorfismo de Fragmento de Restrição
/
Neoplasias Epiteliais e Glandulares
/
Glutationa S-Transferase pi
/
Glutationa Transferase
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Middle aged
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article