Research Article

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Bladder cancer; Gene polymorphism; Meta-analysis; p53 codon 72

Although there have been many studies investigating a possible association between p53 codon 72 polymorphism and risk of bladder cancer, the results have been inconsistent. We conducted a meta-analysis of six epidemiological studies, which included 597 bladder cancer cases and 731 controls. Patients with bladder cancer had a significantly lower frequency of Pro/Arg [odds ratio (OR) = 0.80 ... more

D.B. Li; X. Wei; L.H. Jiang; Y. Wang; F. Xu
12/19/2013
Cerebrovascular disease; Meta-analysis; Methylenetetrahydrofolate reductase; Polymorphism; Stroke

Several independent studies have reported the role of the methylenetetrahydrofolate reductase gene (MTHFR) A1298C polymorphism in strokes, but the results are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed in the present study. In this meta-analysis, a total of 13 studies, including 1974 cases and 2660 controls, were selected ... more

Q.Q. Lv; J. Lu; W. Wu; H. Sun; J.S. Zhang
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
12/04/2013
Congenital heart defects; Gene polymorphism; Meta-analysis; Methylenetetrahydrofolate reductase

Numerous studies have evaluated the association between the maternal C677T polymorphism in the methylenetetrahydrofolate reductase (MTHFR) gene and congenital heart defect (CHD) risk in the Chinese Han population. However, the specific association is still controversial. Six separate studies with 1089 subjects in the Chinese Han population on the relationship between the C677T ... more

K.H. Chen; L.L. Chen; W.G. Li; Y. Fang; G.Y. Huang
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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
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Bronchopulmonary dysplasia; Meta-analysis; MicroRNA; Profiling

Over the past several years, several microRNA (miRNA) expression profiling studies have been carried out on bronchopulmonary dysplasia (BPD) in mammalian lung tissues. The most effective way to identify these important miRNAs is to systematically search for similar signatures identified in multiple independent studies. Accordingly, a meta-analysis was conducted to review published miRNA ... more

Y. Yang; J. Qiu; Q. Kan; X.G. Zhou; X.Y. Zhou
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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
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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

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