期刊
HAEMATOLOGICA-THE HEMATOLOGY JOURNAL
卷 95, 期 8, 页码 1405-1414出版社
FERRATA STORTI FOUNDATION
DOI: 10.3324/haematol.2010.022095
关键词
polymorphisms; acute lymphoblastic leukemia; risk; meta-analysis; false positive report probabilities
类别
资金
- Leukemia Research Fund
- Cancer Research UK
To evaluate the contribution of candidate gene association studies to the understanding of genetic susceptibility to childhood acute lymphoblastic leukemia we conducted a systematic review and meta-analysis of published studies (January 1996-July 2009). Studies had to meet the following criteria: be case-control design, be studied by two or more studies, not be focused on HLA antigen genetic markers and be published in English. We identified 47 studies of polymorphic variation in 16 genes and acute lymphoblastic leukemia risk. To clarify the impact of individual polymorphisms on risk, pooled analyses were performed. Of the 25 polymorphic variants studied, significant associations (P<0.05) were seen in pooled analyses for eight variants: GSTM1 (OR = 1.16; 95%CI: 1.04-1.30), MTRR A66G (OR=0.73, 95%CI:0.59-0.91), SHMT1 C1420T (OR=0.79, 95%CI: 0.65-0.98), RFC1 G80A (OR=1.37, 95%CI: 1.11-1.69), CYP1A1*2A (OR=1.36, 95%CI:1.11-1.66), CYP2E1*5B (OR=1.99, 95%CI:1.32-3.00) NQO1 C609T (OR=1.24, 95%CI:1.02-1.50) and XRCC1 G28152A (OR=1.78, 95%CI:1.32-2.42). These findings should, however, be interpreted with caution as the estimated false-positive report probabilities (FPRP) for each association were not noteworthy (i.e. FPRP>0.2). While candidate gene analyses are complementary to genome-wide association studies, future analyses should be based on sample sizes commensurate with the detection of small effects and attention needs to be paid to study design.
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