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Zhang H, He J, Zhao Y, Wu Q, Zou T, Sun J, Zhu H, Wang X, Sun F, Xing J, Tang K. Effect of glutathione S-transferase gene polymorphisms on semen quality in patients with idiopathic male infertility. J Int Med Res 2021; 49:3000605211061045. [PMID: 34871528 PMCID: PMC8652180 DOI: 10.1177/03000605211061045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE To investigate the relationship between glutathione S-transferase enzyme (GSTM1, T1, and P1) genetic variants and semen quality in men with idiopathic infertility. METHODS Sperm characteristics were measured using computer-assisted sperm analysis. The malondialdehyde (MDA), nitric oxide (NO), and total antioxidant capacity (TAC) activities were detected by spectroscopic analysis, and 8-hydroxy-2'-deoxyguanosine (8-OHdG) was detected by enzyme-linked immunosorbent assay. RESULTS This study included 246 idiopathic infertile men and 117 controls. The GSTM1(-), T1(-), and M1/T1(-/-) genotype frequencies significantly differed between the groups. The GSTM1(-) and T1(-) genotypes in idiopathic infertile men negatively correlated with sperm concentration, motility, mitochondrial membrane potential, and other parameters. However, these genotypes positively correlated with the amplitude of the lateral head displacement and NO and 8-OHdG levels. The GSTT1(-) genotype positively correlated with mean angular displacement and MDA activity. GSTM1(-) and T1(-) had a synergistic effect on semen quality. Sperm motility, normal morphology, straightness, and TAC were lower and amplitude of lateral head displacement and MDA were higher in the GSTP1(A/G + G/G) group than in the GSTP1(A/A) group among men with idiopathic infertility. CONCLUSIONS GSTM1, T1, and P1 genetic variants may be risk factors for infertility by affecting the semen quality men with idiopathic oligoasthenospermia.
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Affiliation(s)
- Hongyan Zhang
- The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Jun He
- The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Yili Zhao
- The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Qifei Wu
- The First Affiliated Hospital of the Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Tiejun Zou
- People's Hospital of Shaanxi Province, Xi'an, Shaanxi, China
| | - Jianhua Sun
- Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Haitao Zhu
- Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Xinyang Wang
- The First Affiliated Hospital of the Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fa Sun
- The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Junping Xing
- The First Affiliated Hospital of the Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Kaifa Tang
- The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.,Institute of Medical Science of Guizhou Medical University, Guiyang, Guizhou, China
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Hassanin AM, Ahmed HH, Kaddah AN. A global view of the pathophysiology of varicocele. Andrology 2018; 6:654-661. [DOI: 10.1111/andr.12511] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 03/20/2018] [Accepted: 05/16/2018] [Indexed: 02/06/2023]
Affiliation(s)
- A. M. Hassanin
- Department of Andrology and Sexology; Faculty of Medicine; Cairo University; Cairo Egypt
| | - H. H. Ahmed
- Department of Andrology and Sexology; Faculty of Medicine; Cairo University; Cairo Egypt
| | - A. N. Kaddah
- Department of Andrology and Sexology; Faculty of Medicine; Cairo University; Cairo Egypt
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Variations in Antioxidant Genes and Male Infertility. BIOMED RESEARCH INTERNATIONAL 2015; 2015:513196. [PMID: 26618172 PMCID: PMC4651646 DOI: 10.1155/2015/513196] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/09/2015] [Accepted: 10/15/2015] [Indexed: 12/18/2022]
Abstract
Oxidative stress and reactive oxygen species (ROS) are generated from both endogenous and environmental resources, which in turn may cause defective spermatogenesis and male infertility. Antioxidant genes, which include catalase (CAT), glutathione peroxidase (GPX), glutathione S-transferase (GST), nitric oxide synthase (NOS), nuclear factor erythroid 2-related factor 2 (NRF2), and superoxide dismutase (SOD), play important roles in spermatogenesis and normal sperm function. In this review, we discuss the association between variations in major antioxidant genes and male infertility. Numerous studies have suggested that genetic disruption or functional polymorphisms in these antioxidant genes are associated with a higher risk for male infertility, which include low sperm quality, oligoasthenoteratozoospermia, oligozoospermia, and subfertility. The synergistic effects of environmental ROS and functional polymorphisms on antioxidant genes that result in male infertility have also been reported. Therefore, variants in antioxidant genes, which independently or synergistically occur with environmental ROS, affect spermatogenesis and contribute to the occurrence of male infertility. Large cohort and multiple center-based population studies to identify new antioxidant genetic variants that increase susceptibility to male infertility as well as validate its potential as genetic markers for diagnosis and risk assessment for male infertility for precise clinical approaches are warranted.
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Wu QF, Tang KF, Sun JH, Xing JP. Glutathione S-transferase T1: a potential marker for the selection of varicocelectomy in infertile male patients with varicocele. Asian J Androl 2015; 17:859-60. [PMID: 25677140 PMCID: PMC4577607 DOI: 10.4103/1008-682x.149179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | | | - Jun-Ping Xing
- Department of Surgery, First Affiliated Hospital, School of Medicine, Xi'an Jiao Tong University, Xi'an 710061, China
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Ying HQ, Qi Y, Pu XY, Liu SR, A ZC. Association of GSTM1 and GSTT1 genes with the susceptibility to male infertility: result from a meta-analysis. Genet Test Mol Biomarkers 2013; 17:535-42. [PMID: 23631429 DOI: 10.1089/gtmb.2012.0409] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The deletion polymorphisms of the glutathione S-transferase M1 (GSTM1) and glutathione S-transferase T1 (GSTT1) genes were considered as candidates for genetic susceptibility factors of male infertility. Previous studies concerning the relationship between the null genotype of the two genes and male infertility have been reported in recent years. However, the results remain elusive. A meta-analysis was performed to estimate the relationship between the deletion polymorphism of the GSTM1 or GSTT1 gene, and male infertility in this study. Sixteen studies concerning the GSTM1 gene, including 2174 cases and 1861 controls, and 13 case-control studies on the GSTT1 gene with a total number of 1992 cases and 1617 controls were processed. The results showed that the null genotype of the GSTM1 gene was associated with male infertility in the overall populations (P=0.003, OR=1.40, 95%CI=1.12-1.75), especially in Caucasian (P=0.012, OR=1.50, 95%CI=1.09-2.07) as well as Chinese (P=0.001, OR=1.55, 95%CI=1.19-2.03). The null genotype of the GSTT1 gene was strongly related to male infertility only in Chinese (P=0.000, OR=1.70, 95%CI=1.34-2.14). These results indicated that the null genotype of the GSTM1 gene might contribute to the susceptibility of male infertility, whereas the null genotype of the GSTT1 gene may be a genetic susceptibility factor of male infertility for the Chinese.
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Affiliation(s)
- Hou-Qun Ying
- Department of Genetics, College of Agriculture and Biology, Dali University, China
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Kan HP, Wu FL, Guo WB, Wang YZ, Li JP, Huang YQ, Li SG, Liu JP. Null genotypes of GSTM1 and GSTT1 contribute to male factor infertility risk: a meta-analysis. Fertil Steril 2013; 99:690-6. [DOI: 10.1016/j.fertnstert.2012.10.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Revised: 10/18/2012] [Accepted: 10/21/2012] [Indexed: 10/27/2022]
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Li X, Pan J, Liu Q, Xiong E, Chen Z, Zhou Z, Su Y, Lu G. Glutathione S-transferases gene polymorphisms and risk of male idiopathic infertility: a systematic review and meta-analysis. Mol Biol Rep 2012; 40:2431-8. [PMID: 23238917 DOI: 10.1007/s11033-012-2323-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 11/19/2012] [Indexed: 01/18/2023]
Abstract
The Glutathione S-transferases (GSTs) polymorphisms have been implicated in susceptibility to male idiopathic infertility, but study results are still controversial. To investigate the genetic associations between GSTs polymorphisms and risk of male idiopathic infertility, a systematic review and meta-analysis were performed. Meta-analysis was performed by pooling odds ratio (OR) with its corresponding 95 % confidence interval (95 % CI) form studies in electronic databases up to March 16, 2012. Glutathione S-transferase M 1 (GSTM1) null genotype, Glutathione S-transferase T 1 (GSTT1) null genotype, and dual null genotype of GSTM1/GSTT1 were analyzed independently. 14 eligible studies with a total of 1,845 idiopathic infertility males and 1,729 controls were included. There were 13 studies on GSTM1 polymorphism, 10 ones on GSTT1 polymorphism and 5 ones on GSTM1-GSTT1 interaction analysis. Meta-analyses of total relevant studies showed GSTM1 null genotype was significantly associated with an increased risk of male idiopathic infertility (OR = 1.40, 95 % CI 1.07-1.84, P OR = 0.015). The GSTM1-GSTT1 interaction analysis showed dual null genotype of GSTM1/GSTT1 was also significantly associated with increased risk of male idiopathic infertility (OR = 1.85, 95 % CI 1.07-3.21, P OR = 0.028). Subgroup analyses by ethnicity showed the associations above were still statistically significant in Caucasians (For GSTM1, OR = 1.51, 95 % CI 1.11-2.05, P OR = 0.009; For GSTM1/GSTT1, OR = 2.10, 95 % CI 1.51-2.91, P OR < 0.001). This meta-analysis suggests GSTM1 null genotype contributes to increased risk of male idiopathic infertility in Caucasians, and males with dual null genotype of GSTM1/GSTT1 are particularly susceptible to developing idiopathic infertility.
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Affiliation(s)
- Xin Li
- Urologic Institute of PLA, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
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Association of the Glutathione S-transferases M1 and T1 polymorphism with male infertility: a meta-analysis. J Assist Reprod Genet 2012; 30:131-41. [PMID: 23239128 DOI: 10.1007/s10815-012-9907-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 10/31/2012] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND Genes of different pathways regulate spermatogenesis, and the complexity of the spermatogenic process indicates that polymorphisms or mutations in these genes could cause male infertility. Published data on the association between the GSTM1 and GSTT1 polymorphism and male infertility risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. METHODS A total of 11 studies regarding GSTM1 and 9 studies regarding GSTT1 between 1999 and 2012 were identified through researching MEDLINE, EMBASE and the Chinese Biomedical Database. It was performed to obtain summary estimated odd ratios and 95 % confidence intervals of GSTM1 and GSTT1 for male infertility, with attention to study quality and publication bias. RESULTS Overall, a significant association was seen between GSTM1 (OR=1.20, 95 % CI=1.02-1.40, P(heterogeneity) =0.000, P=0.027) genotypes and male infertility. Significant associations were also observed in subgroups of Caucasian populations (OR=1.65, 95 %CI=1.16-2.34, P(heterogeneity) =0.006, P=0.005), but were not observed in Asian populations (OR=1.09, 95 % CI=0.72-1.65, P(heterogeneity) =0.054, P=0.697) when stratified by ethnicity. While there was no significant association was seen between GSTT1 (OR=1.00, 95 % CI=0.74-1.35, P(heterogeneity) =0.000, P=0.980) null genotypes and male infertility. Simultaneously, significant associations were not observed in subgroups of Caucasian populations (OR=0.94, 95 %CI=0.44-2.00, P(heterogeneity) =0.000, P=0.867) and Asian populations (OR=0.93, 95 % CI=0.46-1.87, P(heterogeneity) =0.002, P=0.838) when stratified by ethnicity. CONCLUSION Our results suggest the GSTM1 null genotype contributes to male infertility susceptibility, while GSTT1 gene polymorphisms are not associated with male infertility in our study.
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Hamada A, Esteves SC, Agarwal A. Insight into oxidative stress in varicocele-associated male infertility: part 2. Nat Rev Urol 2012; 10:26-37. [PMID: 23165400 DOI: 10.1038/nrurol.2012.198] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Varicocele, the leading cause of male infertility, can impair spermatogenesis through several pathophysiological mechanisms. Of these, current evidence suggests that oxidative stress is the central element contributing to infertility in men with varicocele, to which the testis responds by way of heat stress, ischaemia or production of vasodilators, such as nitric oxide. Surgical varicocele repair (varicocelectomy) is beneficial not only for alleviating oxidative stress-associated infertility, but also for preventing and protecting against the progressive character of varicocele and its consequent upregulations of systemic oxidative stress. However, antioxidant therapy in infertile men with surgically treated and those with untreated varicocele is poorly studied, and well-designed trials are needed.
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Affiliation(s)
- Alaa Hamada
- Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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Carrell DT, Aston KI. The search for SNPs, CNVs, and epigenetic variants associated with the complex disease of male infertility. Syst Biol Reprod Med 2011; 57:17-26. [PMID: 21208142 DOI: 10.3109/19396368.2010.521615] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Understanding the genetic basis of idiopathic male infertility has long been the focus of many researchers. Numerous recent studies have attempted to identify relevant single nucleotide polymorphisms (SNPs) through medical re-sequencing studies in which candidate genes are sequenced in large numbers of cases and controls in the search for risk or causative polymorphisms. Two major characteristics have limited the utility of the re-sequencing studies. First, reported SNPs have only accounted for a small percentage of idiopathic male infertility. Second, SNPs reported to have an association with male infertility based on gene re-sequencing studies often fail validation in follow-up studies. Recent advances in the tools available for genetic studies have enabled interrogation of the entire genome in search of common, and more recently, rare variants. In this review, we discuss the progress of studies on genetic and epigenetic variants of male infertility as well as future directions that we predict will be the most productive in identifying the genetic basis for male factor infertility based on our current state of knowledge in this field as well as lessons learned about the genetic basis for complex diseases from other disease models.
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Affiliation(s)
- Douglas T Carrell
- Andrology and IVF Laboratories, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah 84108, USA.
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Safarinejad MR, Shafiei N, Safarinejad S. The association of glutathione-S-transferase gene polymorphisms (GSTM1, GSTT1, GSTP1) with idiopathic male infertility. J Hum Genet 2010; 55:565-70. [DOI: 10.1038/jhg.2010.59] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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