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Correlation between MDM2 T309G single nucleotide polymorphism and esophageal cancer susceptibility: An updated
Lele Yin1, Guo Shen2, Bin Zhu3
1Department of Emergency, Huaihe Hospital of Henan University, Kaifeng, China.
Background:
The aim of this study was to investigate the correlation between MDM2 T309G single nucleotide polymorphism (SNP) and esophageal cancer susceptibility through pooling the open published data.
Methods:
By systematic searching the databases of Medline, EMBASE, CBM and CNKI, the case-control or cohort studies related to MDM2 T309G single nucleotide polymorphism and esophageal cancer risk were screened. Genetic phenotype data of T309G single nucleotide was extracted from the original included studies. The correlation between MDM2 T309G single nucleotide polymorphism and esophageal cancer susceptibility was demonstrated by the odds ratio (OR) and its corresponding 95% confidence interval (95% CI). Publication bias was investigated by Egger's line regression test and begg's funnel plot.
Results:
After systematic searching of the relevant database, nine publications were finally included in the present study. The combined data demonstrated that the subjects with the G genotype had an increased risk of developing esophageal cancer in dominant (OR = 1.13, 95% CI: 1.00-1.27, P = 0.043), recessive (OR = 1.27, 95% CI: 1.12-1.45, P = 0.000) and homozygous (OR = 1.34, 95% CI:1.04-1.74, P = 0.024) genetic model through random or fixed data pooling method. Both begg's and Egger's line regression test indicated no significant publication bias.
Conclusion:
Based on the present data, there was a significant correlation between MDM2 T309G single nucleotide polymorphism and esophageal cancer susceptibility. Individuals with G genotype may have an increased risk of developing esophageal cancer.
