Polymorphism of GSTM1 and GSTT1 genes in prostate cancer: a study from North India.
Indian J Cancer
;
2004 Jul-Sep; 41(3): 115-9
Article
Dans Anglais
| IMSEAR
| ID: sea-50784
ABSTRACT
BACKGROUND:
Glutathione-S-transferases (GSTs) are active in the detoxification of wide variety of endogenous or exogenous carcinogens. The genetic polymorphisms of GSTM1 and GSTT1 genes have been studied earlier to evaluate the relative risk of various cancers. AIM, SETTING ANDDESIGN:
In the present study, we examined the association of the GSTM1 and GSTT1 gene polymorphisms with sporadic prostate cancer patients in north Indian population. MATERIAL ANDMETHODS:
This case control study was undertaken over a period of 24 months and included 103 prostate cancer patients and 117 controls; both patients and controls originated from northern part of India. The GSTT1 and GSTM1 genotypes were identified by multiplex PCR in peripheral blood DNA samples. STATISTICALANALYSIS:
Difference in genotype prevalence and association between case and control group were assessed by the Chi square and Fisher Exact tests.RESULTS:
Frequencies of null genotypes in GSTT1 and GSTM1, was 11% (13/117) and 30% (35/117) respectively in control individuals. The frequencies of GSTT1 and GSTM1 null genotypes in prostate cancer patients were 34% (35/103) and 53% (55/103) respectively.CONCLUSION:
Our study demonstrates that the null genotypes of GSTT1 and GSTM1 are substantially at higher risk for prostate carcinoma as compared to the normal healthy controls. The GSTT1 and GSTM1 null genotypes did not show significant association with tobacco usage in prostate cancer patients. However, the null genotypes were significantly stratified in 50-60 year-old patients when incidence of prostate cancer is high.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Polymorphisme génétique
/
Tumeurs de la prostate
/
Sujet âgé
/
Humains
/
Mâle
/
Fumer
/
Études cas-témoins
/
Prévalence
/
Facteurs de risque
/
Prédisposition génétique à une maladie
Type d'étude:
Etude d'étiologie
/
Étude observationnelle
/
Étude de prévalence
/
Étude pronostique
/
Facteurs de risque
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Indian J Cancer
Année:
2004
Type:
Article
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