Research Article

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04/26/2013
CCND1 gene; Esophageal cancer; Genetic association; Meta-analysis; Polymorphism

The association between the Cyclin D1 gene (CCND1) G870A polymorphism and esophageal cancer has been widely evaluated, with conflicting results. As meta-analysis is a reliable approach to resolving discrepancies, we aimed to evaluate this association. Data were available from 9 study populations incorporating 1898 cases and 3046 controls. Overall, the allelic/genotypic ... more

W. Cai; Z.T. Wang; J. Zhong; Y. Zhang
12/10/2013
COMT; Endometrial cancer; Meta-analysis; Polymorphism

Catechol-O-methyltransferase (COMT) is a critical enzyme to detoxify the carcinogenic catechol estrogen and the Val158Met polymorphism of COMT could influence its enzymatic activity. Recent epidemiological studies have investigated the correlation of COMT Val158Met polymorphism with endometrial cancer risk; however, the results are inconsistent. To better evaluate the role of ... more

G. Lin; J. Zhao; J. Wu; A. O; W.H. Zhang; Y. Zhang; L. Yu
10/24/2013
Chronic obstructive pulmonary disease; Meta-analysis; Polymorphism; Tumor necrosis factor-alpha

Chronic obstructive pulmonary disease (COPD) is a chronic systemic inflammatory disease; increasing evidence indicates that the TNF-α polymorphism is associated with progression of this disease. Few studies have focused upon association between TNF-α -238G/A or -863C/A polymorphism and COPD risk. Reported associations have been controversial because of small sample size and varied study ... more

K. Cui; X.Y. Ge; H.L. Ma
10/18/2013
External apical root resorption; Interleukin-1β; Meta-analysis; Orthodontic; Polymorphism

The purpose of this meta-analysis was to determine whether genetic variants of the interleukin-1β[+3954 C>T (rs1143634)] (IL-1β +3954 C>T) gene polymorphisms were associated with orthodontic external apical root resorption (EARR). A meta-analysis was carried out using data entered into the PubMed and Embase electronic databases before October 5, 2012. A total of 7 studies were ... more

F.L. Wu; L.Y. Wang; Y.Q. Huang; W.B. Guo; C.D. Liu; S.G. Li
10/15/2013
EPHX1 gene; Esophageal cancer; Meta-analysis; Polymorphism

Epoxide hydrolases metabolize exogenous chemicals, including carcinogens such as polycyclic aromatic hydrocarbons. The relationship between microsomal epoxide hydrolase 1 (EPHX1) polymorphisms and esophageal cancer risk has been investigated in various ethnic populations, but the results have been contradictory. We investigated the association of EPHX1 Tyr113His and ... more

J.J. Hu; Z.T. Wang; B. Li
09/23/2013
Cancer; Meta-analysis; MiR-499; Polymorphism

An A/G polymorphism (rs3746444) has been identified in the miR-499 gene that can change the conformation of the secondary gene structure and thereby directly affect binding to target mRNAs and the microRNA (miRNA) maturation process, thus altering protein expression and potentially contributing to cancer susceptibility. Numerous studies investigating the associa­tion between the ... more

N. Wang; Z.Q. Tian; Y. Li; R.M. Zhou; G.Y. Wang
09/23/2013
Coronary artery disease; Meta-analysis; Polymorphism

The G403A polymorphism in the RANTES (regulated on activation normal T cell expressed and secreted) gene has a key role in the expression of RANTES, which has been detected in a range of cells in atherosclerotic plaque. However, the association of this polymorphism with the risk of coronary artery disease (CAD) remains controversial. A meta-analysis was performed to assess the association ... more

K. Cui; X.Y. Ge; H.L. Ma
07/08/2013
Association signal; Colorectal cancer; IL6 gene; Meta-analysis; Polymorphism

Interleukin 6 (IL6) is a pleiotropic cytokine involved in physiological processes and in a variety of human malignancies. It is thus a logical candidate for being a causative factor underlying colorectal cancer (CRC). The association between the IL6 -174G>C polymorphism and CRC has been widely evaluated; yet, there is a lack of agreement between studies on the role of ... more

J.J. Hu; Z.T. Wang; J. Zhong
04/02/2013
Endometriosis; Meta-analysis; Polymorphism; VEGF

Endometriosis is a chronic gynecological disease defined as the presence of the endometrium outside the uterine cavity. Endometriosis is a multifactorial and polygenic disease in which angiogenesis may be implicated. Angiogenesis is under the control of numerous inducers, including vascular endothelial growth factor (VEGF). Many studies have reported that VEGF plays a role in the ... more

Y.Z. Li; L.J. Wang; X. Li; S.L. Li; J.L. Wang; Z.H. Wu; L. Gong; X.D. Zhang
11/12/2012
Gastric cancer; Meta-analysis; Polymorphism; susceptibility; XRCC1

Association between the XRCC1 Arg399Gln polymorphism and susceptibility to gastric cancer has been investigated; overall, the results have been inconclusive. We made a meta-analysis of 13 case-control studies, including 3278 cases and 6243 controls. Crude odds ratios (OR) with 95% confidence intervals (95%CI) were used to assess this possible association. We found no evidence of a ... more

B.M. Liu; T.M. Liu; B.S. You; H.Y. You; J. Yang; L. Li; Y.C. He

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