Entity

Time filter

Source Type


Tian C.,Huan Provincial Tumor Hospital | Liu L.,Huan Provincial Tumor Hospital | Yang X.,Huan Provincial Tumor Hospital | Wu H.,Huan Provincial Tumor Hospital | Ouyang Q.,Huan Provincial Tumor Hospital
Tumor Biology | Year: 2014

The Val158Met polymorphism in the COMT gene may affect the DNA repair pathways and be associated with the risk of cancer in Chinese population. However, the results of previous studies are inconsistent. The objective of this study was to investigate the association between the Val158Met polymorphism in the COMT gene and the risk of cancer for Chinese population by meta-analysis. We searched PubMed, Embase, CNKI, Weipu, and Wanfang databases, and the last search was updated on Sep. 26, 2013. Statistical analysis was performed using the Revman4.2 and Stata10.0 software. A total of 18 case-control studies concerning 5034 case and 6234 controls were included. In the total analysis, the results suggested a significant association between the Val158Met polymorphism in the COMT gene and the cancer risk in Chinese population: OR = 1.34, 95 %CI = 1.04-1.73, and P = 0.03 for AA vs. AG + GG; OR = 1.39, 95 %CI = 1.06-1.82, and P = 0.02; OR = 1.13, 95 %CI = 1.01-1.27, and P = 0.04. In the subgroup analysis by cancer types, significant association was found in the breast cancer and esophageal squamous cell carcinoma. The current meta-analysis confirmed that the Val158Met polymorphism in the COMT gene may be a risk factor for cancer in Chinese population. In the future, more case-control studies are needed to validate our results. © 2013 International Society of Oncology and BioMarkers (ISOBM). Source

Discover hidden collaborations