title: Survivin promoter -31G/C (rs9904341) polymorphism and cancer susceptibility: a meta-analysis.
abstract: This study aimed to perform a meta-analysis to assess the association of survivin -31 G/C promoter polymorphism and cancer risk. Thirteen case-control studies identified through PubMed and published between 2007 and 2011 with a total of 3329 cancer cases and 3979 controls were included in this meta-analysis. Odds ratio (OR) and 95% confidence interval (95% CI) were used to investigate the strength of the association. Overall, the pooled analysis showed that survivin -31C allele was associated with 1.27 fold increased risk of cancer compared with the -31G allele (95% CI = 1.091-1.479; random model). Subgroup analyses based on type of cancer and ethnicity were also performed, and results indicated that survivin -31G/C polymorphism was not associated with risk of gastric cancer [OR = 2.879; 95% CI = 0.553-15.004) for CC vs.GG] and esophageal cancer [OR = 1.352; 95% CI = 0.494-3.699) for CC vs.GG]. Stratification on the basis of ethnicity showed that the risk due to -31C allele was significant only in Asian population [OR = 1.894; 95% CI = 1.206-2.974 for CC vs.GG]. The present meta-analysis suggests an important role of survivin -31 G/C polymorphism with cancer risk especially in Asian population. However, further studies with larger sample size are required to draw more comprehensive conclusions and provide more precise evidence in individual cancers.
authors: Department of Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow 226014, India.
authors: Kshitij
authors: K
authors: Srivastava
authors: Anvesha
authors: A
authors: Srivastava
authors: Balraj
authors: B
authors: Mittal
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