Research Article

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04/15/2015
Male infertility; Methionine synthase; Methionine synthase reductase; Methylenetetrahydrofolate reductase; Single-nucleotide polymorphism

We examined the association between the methionine synthase reductase (MTRR A66G), methylenetetrahydrofolate reductase (MTHFR C677T and A1298C), and methionine synthase (MS A2756G) genotypes and non-obstructive male infertility in a Chinese population. This case-control study included 162 infertile Chinese patients with azoospermia (N = 100) or ... more

X.Y. Li; J.Z. Ye; X.P. Ding; X.H. Zhang; T.J. Ma; R. Zhong; H.Y. Ren
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
12/11/2013
chromosome; Klinefelter’s syndrome; Male infertility; Preimplantation genetic diagnosis; Prenatal diagnosis

The purpose of this study was to detect chromosomal aberrations and azoospermia factor (AZF) microdeletions in male patients with reproductive problems and to summarize related clinical features to provide reliable information for evaluating prenatal and preimplantation diagnoses. A large cohort of 5083 men with various phenotypes of male infertility was analyzed via G-banding karyotyping ... more

Q. Quan; T.J. Li; X.P. Ding; J. Wei; L.X. Li; L. Fu
06/11/2015
Genetic polymorphism; Male infertility; MDR1 (ABCB1); P-glycoprotein

Infertility affects 1 in 6 couples and approximately 1 in 25 men. Male factor infertility is a major cause of spermatogenic anomalies, the causes of which are largely unknown. Impaired repro­ductive functions in men might result from physiological, genetic, and/or environmental factors such as xenobiotics. The multi-drug re­sistance1 (MDR1) gene encodes a P-glycoprotein which has ... more

S.E. Aydos; A. Karadağ; T. Özkan; B. Altınok; M. Bunsuz; S. Heidargholizadeh; K. Aydos; A. Sunguroĝlu
05/25/2015
Follicle-stimulating hormone receptor; Idiopathic infertility; Male infertility; Meta-analysis; Single nucleotide polymorphisms

Male infertility is a complex multifactorial and polygenic disease, and genetic factors play an important role in its formation and development. Recently, the association between follicle stimulating hormone receptor (FSHR) gene polymorphisms and male infertility risk has attracted widespread attention due to the unique biological functions of FSH. The aim of this study was to ... more

X.Q. Wu; S.M. Xu; Y.Q. Wang; Q. Li; Z.Q. Wang; C.L. Zhang; Y. Shen
11/29/2011
Gene polymorphism; Meta-analysis; p53 codon 72; Prostate cancer

We examined whether p53 codon 72 polymorphism confers prostate cancer risk by conducting a meta-analysis. Two investigators independently searched the Pubmed, Embase and CBM databases. This meta-analysis was made of seven case-control studies, that included 892 prostate cancer cases and 1020 healthy controls. Meta-analysis results based on all the studies showed no significant association ... more

M.S. Li; J.L. Liu; Y. Wu; P. Wang; H. Teng
11/08/2011
Gene polymorphism; Liver cirrhosis; Meta-analysis; Risk; Tumor necrosis factor

TNF-α is a potential proinflammatory cytokine that plays an important role in the pathogenesis of liver cirrhosis. We investigated a possible association between TNF-α -308G>A polymorphism and liver cirrhosis risk by conducting a meta-analysis. Publications addressing the association between TNF-α -308G>A and liver cirrhosis risk were selected from the Pubmed and Embase databases. ... more

D. Chen; J.L. Liu; Y. Liu; J. Zhu; S.W. Wang
05/24/2011
ClC-Kb; Essential hypertension; Gene polymorphism; Mongolian population; SLC12A3

Abnormalities in renal sodium chloride and water reabsorption play important roles in the development of hypertension. Mutations in the genes involved in renal sodium chloride reabsorption can affect blood pressure. Recently, the R904Q variant of the sodium/chloride transporters, member 3 (SLC12A3) gene and the T481S variant of the chloride channel Kb (ClC-Kb) gene were found to be implicated ... more

P.Y. Chang; X.G. Zhang; X.L. Su
08/31/2010
Dairy Holstein; Gene polymorphism; IGF-I; Milk fat; Milk protein

We estimated the allele and genotype frequencies of IGF-I/SnaBI gene polymorphism and the concentration of this protein in Holstein dairy cows. We also examined the association with milk yield (305-day milk yield) and milk components (fat and protein percentage, and 305-day milk protein and fat yield). Blood IGF-I levels were measured and genotyping was performed on 250 Holstein ... more

E. Bonakdar; H.R. Rahmani; M.A. Edriss; B.E.Sayed Tabatabaei
08/17/2010
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

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