title: A systematic review and meta-analysis of runt-related transcription factor 3 gene promoter hypermethylation and risk of gastric cancer.
abstract: OBJECTIVE
  To evaluate the association between runt-related transcription factor 3 (RUNX3) gene promoter hypermethylation and gastric cancer risk by meta-analysis.
  
  
  METHODS
  By searching Medline, EMBASE, Ovid, China National Knowledge Infrastructure and Wanfang databases, the open published articles reporting the relationship between RUNX3 gene promoter hypermethylation, and gastric carcinoma risk, were screened. The aggregated odds ratio of RUNX3 gene promoter hypermethylation in cancerous sample of gastric cancer patients compared to normal gastric tissue of gastric cancer patients was pooled by statistic software STATA-11.0.
  
  
  RESULTS
  Sixteen studies include 2631 samples were finally included in this meta-analysis. The aggregated results indicated that the hypermethylation rate in cancerous tissue was much higher than that in normal tissue (55.1% vs. 26.5%, P < 0.05). And the pooled results showed that the RUNX3 gene promoter methylation odds in tumor tissue in gastric cancer patients compared to normal gastric tissue was 5.47 (95% confidence interval: 3.34-8.96).
  
  
  CONCLUSIONS
  RUNX3 gene promoter hypermethylation rate was much higher in tumor tissue than that in normal gastric tissue in the patient with gastric cancer.
authors.affiliation: Department of Gastroenterolog, Nanyang City Center Hospital, Nanyang 473009, China.
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Xia
authors.forename: Meng
authors.initials: M
authors.lastname: Zhang
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Zhang
authors.forename: Xiaozheng
authors.initials: X
authors.lastname: Liu
mesh_terms: D050677:Core Binding Factor Alpha 3 Subunit / Q000235:genetics*; D019175:DNA Methylation / Q000235:genetics*; D006801:Humans; D011401:Promoter Regions, Genetic / Q000235:genetics*; D012307:Risk Factors; D013274:Stomach Neoplasms / Q000235:genetics*
chemical_list: D050677:Core Binding Factor Alpha 3 Subunit