T allele of CYP2B6 516G>T SNP may be one of the risk factors predisposing to the pathogenesis of a majority of ALL and AML, but has no relationship with B-ALL and leukemia with or without chromosome abnormalities.
The genetic polymorphisms of biotransformation phase I enzymes, cytochrome P450 (CYP1A1 and CYP2D6), and phase II enzymes, glutathione S-transferase (GSTM1 and GSTT1), were analyzed in 204 healthy persons and 348 leukemia patients, who suffered from also acute lymphoblastic leukemia (ALL), acute nonlymphoblastic leukemia (ANLL) chronic myelogenous leukemia (CML), from the Han ethnic group in Changsha City of Hunan Province of China.