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Association between MTHFR C677T polymorphism and risk of acute lymphoblastic leukemia: a meta-analysis based on 51
Su-yi Li1, Jie-yu Ye1, En-yu Liang1
1Laboratory of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland).
Background:
Studies and systematic reviews have reached inconsistent conclusions on the role of 5, 10-methylenetetrahydrofolate reductase (MTHFR) polymorphism C677T in acute lymphoblastic leukemia (ALL) risk.
Material And Methods:
The present meta-analysis comprising of 51 case-control studies, including 7892 cases and 14 280 controls was performed to reevaluate the association between MTHFR C677T polymorphism and ALL risk.
Results:
Statistical differences were found in the dominant model (TT+CT vs. CC, odd ratio (OR)=0.89, 95% CI, 0.79-1.00, P=0.04) and the CT vs. CC (OR=0.89, 95% CI, 0.80-1.00, P=0.05), but not in the allele contrast model (T vs. C, OR=0.92, 95% CI, 0.84-1.01, P=0.08), additive model (TT vs. CC, OR=0.87, 95% CI, 0.73-1.05, P=0.15), or recessive model (TT vs. CT+CC, OR=0.94, 95% CI, 0.81-1.10, P=0.44) in overall populations. In the subgroup analyses stratified by age (children and adults) and ethnicity (Asian and Caucasian), no significant associations between MTHFR C677T polymorphism and ALL risk were observed.
Conclusions:
The current study found no sufficient evidence of a protective role of MTHFR C677T polymorphism in ALL susceptibility.
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