This study was aimed to investigate the relation of glutathione S-transferase pI (GSTP1) and cytochrome P450 enzyme 2E1 (CYP2E1) gene polymorphisms with the susceptibility to acute leukemia (AL) in Chinese population. The GSFP1 and CTP2E1 gene polymorphisms in 150 patients with AL and 150 patients with non-hematological diseases or non-tumor as controls were detected by means of case-control paired 1:1 method and ligase detection reaction (LDR) techniques. The results indicated that the frequently of G allele and Ile/Val + Val/Val of GSTP1 gene (26.7%and 44% respectively) in AL group were higher than those in control group (10% and 16% respectively); the AL risk for persons with Ile/Val + Val/Val was 3.260-fold (95%CI = 1.527 - 5.236) of persons with Ile/Ile. The further stratified analysis showed the frequency of Ile/Val + Val/Val in AML group was higher than that in control group (55% vs 16%, p < 0.05); the AML risk for persons with Ile/Val + Val/Val was 2.214-fold (95% CI = 1.009-3.260) as persons with Ile/Ile. The frequencies of C2 allele (16.7%) and C1C2/C2C2 of CYP2E1 gene (30%) in AL group seemed higher than those in control groups (13.9% and 26%), but the difference between them was not statistical significant (p > 0.05). The further stratified analysis showed that C1C2/C2C2 of CYP2E1 gene occurred more frequently in AML group (36%) than that in control group (32%), but there was no statistical difference between them (p > 0.05). Combined genotype analysis showed that the AML risk for persons in combination of lle/Val + Val/Val of GSTP1 gene with C1C2 + C2C2 of CYP2E1 gene increased by 3.208-fold. It is concluded that the GSTP1 gene is related with susceptibility to AML, the AL risk for persons with lle/Val + Val/Val of GSTP1 gene decreased, while CYP2E1 gene is not related with susceptibility to AL, the AML risk for persons in combination of GSTP1 wildtype with CYP2E1 hybrid and mutant genotype can be further decreased.
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