Glutathione-S-transferase polymorphisms (GSTM1, GSTT1 and GSTP1) and acute leukemia risk in Asians: a meta-analysis

Asian Pac J Cancer Prev. 2014;15(5):2075-81. doi: 10.7314/apjcp.2014.15.5.2075.

Abstract

The association between glutathione-S-transferase polymorphisms (GSTM1, GSTT1 and GSTP1) and risk of acute leukemia in Asians remains controversial. This study was therefore designed to evaluate the precise association in 23 studies identified by a search of PubMed and several other databases, up to December 2013. Using random or fixed effects models odds ratios (ORs) with corresponding 95% confidence intervals (CIs) were calculated. Heterogeneity across studies was assessed, and funnel plots were constructed to test for publication bias. The meta-analysis showed positive associations between GST polymorphisms (GSTM1 and GSTT1 but not GSTP1) and acute leukemia risk [(OR=1.47, 95% CI 1.18-1.83); (OR=1.32, 95% CI 1.07-1.62); (OR=1.01, 95% CI 0.84-1.23), respectively] and heterogeneity between the studies. The results suggested that the GSTM1 null genotype and GSTT1null genotype, but not the GSTP1 polymorphism, might be a potential risk factors for acute leukemia. Further well-designed studies are needed to confirm our findings.

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Asian People / genetics*
  • Child
  • Child, Preschool
  • Genetic Predisposition to Disease / genetics*
  • Genotype
  • Glutathione S-Transferase pi / genetics*
  • Glutathione Transferase / genetics*
  • Humans
  • Infant
  • Infant, Newborn
  • Middle Aged
  • Polymorphism, Genetic / genetics*
  • Risk
  • Risk Factors
  • Young Adult

Substances

  • glutathione S-transferase T1
  • GSTP1 protein, human
  • Glutathione S-Transferase pi
  • Glutathione Transferase
  • glutathione S-transferase M1