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Meta-Analysis
. 2014 Feb 24;9(2):e89736.
doi: 10.1371/journal.pone.0089736. eCollection 2014.

Meta-analysis of the rs4779584 polymorphism and colorectal cancer risk

Hua Yang  1 , Ya Gao  2 , Tian Feng  3 , Tian-Bo Jin  4 , Long-Li Kang  5 , Chao Chen  6
Affiliations
Meta-Analysis

Meta-analysis of the rs4779584 polymorphism and colorectal cancer risk

Hua Yang et al. PLoS One. .

Abstract

Purpose: Several researchers have suggested that the rs4779584 (15q13.3) polymorphism is associated with an increased risk of developing colorectal cancer (CRC). However, past results remain inconclusive. We addressed this controversy by performing a meta-analysis of the relationship between rs4779584 of GREM1-SCG5 and colorectal cancer.

Methods: We selected 12 case-control studies involving 11,769 cases of CRC and 14,328 healthy controls. The association between the rs4779584 polymorphism and CRC was examined by the overall odds ratio (OR) with a 95% confidence interval (CI). We used different genetic model analyses, sensitivity analyses, and assessments of bias in our meta-analysis.

Results: GREM1-SCG5 rs4779584 polymorphisms were associated with CRC in all of the genetic models that were examined in this meta-analysis of 12 case-control studies.

Conclusion: GREM1-SCG5 rs4779584 polymorphisms may increase the risk of developing colorectal cancer.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Figure 1
Figure 1. Flow diagram of study selection.
Figure 2
Figure 2. Forest plots for the rs4779584 polymorphism and risk of CRC in the additive genetic model.
Figure 3
Figure 3. Funnel plot of the meta-analysis of CRC risk and the rs4779584 polymorphism.
Figure 4
Figure 4. Sensitivity analysis of the odds ratio coefficients among Caucasian subject.
See this image and copyright information in PMC

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