[Association between polymorphism of RAD50 gene and acute lymphoid leukemia in children].

To investigate the association between single nucleotide polymorphism (SNP) (rs17166050) in RAD50 gene and acute lymphoid leukemia (ALL) in children.,A total of 177 ALL children from Wuhan and surrounding areas and 232 healthy children were selected. The numbers of standard-risk, medium-risk, and high-risk children were 66, 69, and 42, respectively. The genotypes of SNP in RAD50 gene were determined using PCR-RFLP, and the relationship of the RAD50 polymorphism with ALL susceptibility and clinical risk was analyzed.,The genotype (AA, GA, and GG) distribution of SNP in RAD50 gene showed significant differences between the ALL and control groups (P=0.038), and G allele was significantly associated with ALL susceptibility (OR=1.459, 95% CI: 1.034-2.057, P=0.031). However, the SNP was not associated with the risk stratification of ALL.,The SNP (rs17166050) in RAD50 gene is associated with the susceptibility to ALL in children, but is not associated with the risk stratification of ALL.