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Russo GI, Saleh R, Finocchi F, Juma AR, Durairajanayagam D, Kahraman O, Söğütdelen E, Sokolakis I, Vishwakarma RB, Bahar F, Harraz AM, Kavoussi P, Atmoko W, Chung E, Kumar N, Zohdy W, Rambhatla A, Arafa M, Phuoc NHV, Salvio G, Calogero AE, Toprak T, Pinggera GM, Cannarella R, Colpi G, Hamoda TAAAM, Shah R, Agarwal A. Impact of Varicocele on Testicular Oxidative Stress and Sperm Parameters in Experimental Animals: A Systematic Review and Meta-Analysis. World J Mens Health 2024; 42:563-573. [PMID: 38449451 PMCID: PMC11216963 DOI: 10.5534/wjmh.230260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 09/27/2023] [Indexed: 03/08/2024] Open
Abstract
PURPOSE Varicocele has been associated with high seminal oxidative stress (OS), impaired semen quality, and reduced male fertility potential. However, the exact mechanism(s) underlying the development of varicocele-mediated infertility and the cause-effect relationship between varicocele and testicular dysfunction are not fully understood. The aim of this systematic review and meta-analysis (SRMA) is to investigate the impact of varicocele on testicular OS markers and sperm parameters in experimental animals with varicocele as compared to animals without varicocele. MATERIALS AND METHODS A literature search was performed using the Scopus and PubMed databases on studies that investigated testicular OS markers and sperm parameters in animals with varicocele. The primary outcomes included malondialdehyde (MDA) (nmol/mg) levels whereas the secondary outcomes included total sperm count (×106), sperm vitality (%), total sperm motility (%), and sperm DNA fragmentation (SDF) (%). Standardized mean difference (SMD) (95% confidence interval [CI]) was chosen to express the effect size. The quality of the included studies was evaluated using the Cambridge Quality Checklist. RESULTS Out of 76 identified articles, 6 studies on rats were included in the meta-analysis. The analysis showed a significant increase of MDA (SMD: 15.61 [1.93, 29.29]; p=0.03) in rats with varicocele vs. controls. We also observed a significant decrease in total sperm count (SMD: -17.45 [-28.97, -5.93]; p<0.01), sperm vitality (SMD: -16.41 [-26.30, -6.52]; p<0.01), total sperm motility (SMD: -17.67 [-24.90, -10.44]; p<0.01), and a significant increase of SDF (SMD: 7.41 [1.23, 13.59]; p=0.02), in rats with varicocele vs. controls. The quality of the included studies was ranked as high. CONCLUSIONS This SRMA indicates a significant increase in levels of testicular MDA and SDF and a reduction of sperm quality in experimental animals with varicocele. These findings support the potential role of testicular OS in the development of varicocele-induced testicular damage.
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Affiliation(s)
- Giorgio Ivan Russo
- Urology Section, Department of Surgery, University of Catania, Catania, Italy
- Global Andrology Forum, Moreland Hills, OH, USA
| | - Ramadan Saleh
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
- Ajyal IVF Center, Ajyal Hospital, Sohag, Egypt
| | - Federica Finocchi
- Global Andrology Forum, Moreland Hills, OH, USA
- Division of Endocrinology, Department of Clinical and Molecular Sciences (DISCLIMO), Polytechnic University of Marche, Ancona, Italy
| | - Almas Ramadhani Juma
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Reproductive Health and Biology, Kenya Institute of Primate Research, Nairobi, Kenya
| | - Damayanthi Durairajanayagam
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Physiology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| | - Oguzhan Kahraman
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Faculty of Medicine, Baskent University, Konya, Turkey
| | - Emrullah Söğütdelen
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Ioannis Sokolakis
- Global Andrology Forum, Moreland Hills, OH, USA
- 2nd Department of Urology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ranjit B Vishwakarma
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
| | - Fahmi Bahar
- Global Andrology Forum, Moreland Hills, OH, USA
- Andrology Section, Faculty of Medicine, Universitas Muhammadiyah Palembang, Palembang, Indonesia
- Andrology Section, Siloam Sriwijaya Hospital, Palembang, Indonesia
| | - Ahmed M Harraz
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
- Department of Surgery, Urology Unit, Farwaniya Hospital, Farwaniya, Kuwait
- Department of Urology, Sabah Al Ahmad Urology Center, Kuwait City, Kuwait
| | - Parviz Kavoussi
- Global Andrology Forum, Moreland Hills, OH, USA
- Austin Fertility & Reproductive Medicine/Westlake IVF, Austin, TX, USA
| | - Widi Atmoko
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Faculty of Medicine, Universitas Indonesia Dr. Ciptomangunkusumo Hospital, Jakarta, Indonesia
| | - Eric Chung
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Princess Alexandra Hospital, University of Queensland, Brisbane, Australia
| | - Naveen Kumar
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, All India Institute of Medical Sciences (AIIMS), Patna, India
| | - Wael Zohdy
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Andrology and STDs, Cairo University, Cairo, Egypt
| | - Amarnath Rambhatla
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Vattikuti Urology Institute, Henry Ford Health System, Detroit, MI, USA
| | - Mohamed Arafa
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Andrology and STDs, Cairo University, Cairo, Egypt
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medical-Qatar Doha, Doha, Qatar
| | - Nguyen Ho Vinh Phuoc
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology and Andrology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh City, Vietnam
| | - Gianmaria Salvio
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Aldo E Calogero
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Tuncay Toprak
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, University of Health Sciences, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey
| | - Germar-Michael Pinggera
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Innsbruck Medical University, Innsbruck, Austria
| | - Rossella Cannarella
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
- Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Giovanni Colpi
- Global Andrology Forum, Moreland Hills, OH, USA
- Andrology & IVF Center, Next Fertility Procrea, Lugano, Switzerland
| | - Taha Abo-Almagd Abdel-Meguid Hamoda
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Urology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Rupin Shah
- Global Andrology Forum, Moreland Hills, OH, USA
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
| | - Ashok Agarwal
- Global Andrology Forum, Moreland Hills, OH, USA
- Cleveland Clinic Foundation, Cleveland, OH, USA.
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Zeng J, Gao W, Tang Y, Wang Y, Liu X, Yin J, Su X, Zhang M, Kang E, Tian Y, Ni B, He W. Hypoxia-sensitive cells trigger NK cell activation via the KLF4-ASH1L-ICAM-1 axis, contributing to impairment in the rat epididymis. Cell Rep 2023; 42:113442. [PMID: 37952156 DOI: 10.1016/j.celrep.2023.113442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 08/31/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023] Open
Abstract
Male infertility is a global health problem especially prevalent in high-altitude regions. The epididymis is essential for sperm maturation, but the influence of environmental cues on its reshaping remains poorly understood. Here, we use single-cell transcriptomics to track the cellular profiles of epidydimal cells in rats raised under normoxia or extended hypoxia. The results show that hypoxia impairs epididymal function, evident in reduced epithelial cells, compromised blood-epididymis barrier integrity, and increased natural killer cells. Through combined analysis of gene-regulatory networks and cell-cell interaction maps, we identify epididymal hypoxia-sensitive cells that communicate with natural killer (NK) cells via increased intercellular adhesion molecule 1 (ICAM-1) driven by KLF4 recruitment of the histone methyltransferase ASL1L to the Icam1 promoter. Taken together, our study offers a detailed blueprint of epididymal changes during hypoxia and defines a KLF4-ALSH1L-ICAM-1 axis contributing to NK cell activation, yielding a potential treatment targeting hypoxia-induced infertility.
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Affiliation(s)
- Jitao Zeng
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Weiwu Gao
- Institute of Immunology, People's Liberation Army (PLA), and Department of Immunology, College of Basic Medicine, Army Medical University, Chongqing, China
| | - Ying Tang
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Ying Wang
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Xiaona Liu
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Jun Yin
- Department of Pathophysiology, College of High-Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Xingxing Su
- Hepatological Surgery Department, Southwest Hospital, Army Medical University, Chongqing, China
| | - Mengjie Zhang
- Department of Pathophysiology, College of High-Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Enchuan Kang
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China
| | - Yi Tian
- Institute of Immunology, People's Liberation Army (PLA), and Department of Immunology, College of Basic Medicine, Army Medical University, Chongqing, China
| | - Bing Ni
- Department of Pathophysiology, College of High-Altitude Military Medicine, Army Medical University, Chongqing, China
| | - Wei He
- Reproductive Medical Center, Southwest Hospital, Army Medical University, Chongqing, China.
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Li H, Zhao J, Deng H, Zhong Y, Chen M, Chi L, Luo G, Cao C, Yu C, Liu H, Zhang X. N6-methyladenosine modification of PLOD2 causes spermatocyte damage in rats with varicocele. Cell Mol Biol Lett 2023; 28:72. [PMID: 37670228 PMCID: PMC10481479 DOI: 10.1186/s11658-023-00475-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/29/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND In recent years, N6-methyladenosine (m6A) methylation modification of mRNA has been studied extensively. It has been reported that m6A determines mRNA fate and participates in many cellular functions and reactions, including oxidative stress. The PLOD2 gene encodes a protein that plays a key role in tissue remodeling and fibrotic processes. METHODS The m6A methylation and expression levels of PLOD2 were determined by m6A methylated RNA immunoprecipitation sequencing (MeRIP-seq) and MeRIP-quantitative polymerase chain reaction (qPCR) in the testes of varicocele rats compared with control. To determine whether IGF2BP2 had a targeted effect on the PLOD2 mRNA, RNA immunoprecipitation-qPCR (RIP-qPCR) and luciferase assays were performed. CRISPR/dCas13b-ALKBH5 could downregulate m6A methylation level of PLOD2, which plays an important role in PLOD2-mediated cell proliferation and apoptosis in GC-2 cells. RESULTS PLOD2 was frequently exhibited with high m6A methylation and expression level in the testes of varicocele rats compared with control. In addition, we found that IGF2BP2 binds to the m6A-modified 3' untranslated region (3'-UTR) of PLOD2 mRNA, thereby positively regulating its mRNA stability. Targeted specific demethylation of PLOD2 m6A by CRISPR/dCas13b-ALKBH5 system can significantly decrease the m6A and expression level of PLOD2. Furthermore, demethylation of PLOD2 mRNA dramatically promote GC-2 cell proliferation and inhibit cell apoptosis under oxidative stress. CONCLUSION As a result, we found that varicocele-induced oxidative stress promoted PLOD2 expression level via m6A methylation modification. In addition, targeting m6A demethylation of PLOD2 by CRISPR/dCas13b-ALKBH5 system can regulate GC-2 cell proliferation and apoptosis under oxidative stress. Taken together, our study has acquired a better understanding of the mechanisms underlying male infertility associated with oxidative stress, as well as a novel therapeutic target for male infertility.
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Affiliation(s)
- Huan Li
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - Jun Zhao
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - Hao Deng
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - YuCheng Zhong
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - Mian Chen
- Pharmacy Department, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - LinSheng Chi
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - GuoQun Luo
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - Cong Cao
- Assisted Reproductive Technology Center, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - Cong Yu
- Assisted Reproductive Technology Centre, Maternity and Child Healthcare Hospital of Meizhou, Meizhou, China
| | - Honghai Liu
- Assisted Reproductive Technology Centre, Maternity and Child Healthcare Hospital of Meizhou, Meizhou, China
| | - Xinzong Zhang
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou, China.
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4
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Wang K, Gao Y, Wang C, Liang M, Liao Y, Hu K. Role of Oxidative Stress in Varicocele. Front Genet 2022; 13:850114. [PMID: 35401656 PMCID: PMC8984266 DOI: 10.3389/fgene.2022.850114] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/08/2022] [Indexed: 01/29/2023] Open
Abstract
According to the official statistics of the World Health Organization, at least 48 million couples and 186 million people suffer from infertility. Varicocele has been recognized as the leading cause of male infertility and can affect spermatogenesis and cause testicular and epididymal disorders through multiple diverse pathophysiological processes. Reactive oxygen species (ROS) produced by oxidative stress have been reconciled as an important pathogenic factor throughout the course of varicocele. Testis respond to heat stress, hypoxia, and inflammation at the cost of producing excessive ROS. High levels of ROS can lead to infertility not only through lipid peroxidation or DNA damage, but also by inactivating enzymes and proteins in spermatogenesis. This review studies the oxidative stress and its role in the pathophysiology and molecular biology of varicocele in the context of a decline in fertility.
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Affiliation(s)
| | | | | | | | | | - Ke Hu
- *Correspondence: Ke Hu, ; Yaping Liao,
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5
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Li M, Li J, Zhang C, Hou S, Weng B. MIR210HG is aberrantly expressed in the seminal plasma of varicocele patients and associated with varicocele-related dyszoospermia. Andrologia 2022; 54:e14277. [PMID: 35146790 DOI: 10.1111/and.14277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 02/06/2023] Open
Abstract
This study aimed to confirm the expression of the seminal plasma long noncoding RNAs (lncRNAs) microRNA210 host gene (MIR210HG) in varicocele (VC) patients, to further explore the association between MIR210HG and VC severity and to evaluate whether MIR210HG can predict VC-related dyszoospermia. Semen samples from 188 VC patients and 92 healthy men were collected. Quantitative reverse transcriptase PCR detected seminal plasma MIR210HG levels. Receiver operating characteristic analysis assessed the ability of MIR210HG to screen patients with VC, or to screen VC patients with abnormal semen quality. Logistic analysis assessed the value of MIR210HG in predicting dyszoospermia in VC patients. The levels of MIR210HG in seminal plasma of VC patients were upregulated, which could screen VC patients. In addition, the levels of seminal plasma MIR210HG were upregulated with VC severity and were downregulated at 6 months after surgery in VC patients. Moreover, elevated MIR210HG levels in VC patients with abnormal semen quality could screen patients with abnormal semen quality and could independently predict the occurrence of dyszoospermia in VC patients. Seminal plasma MIR210HG expression is upregulated in VC patients, is associated with the severity of VC and may function as an independent predictor of VC-related dyszoospermia.
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Affiliation(s)
- Monong Li
- Urology Surgery, Qingdao Municipal Hospital, Qingdao, China
| | - Jinli Li
- Urology Surgery, Qingdao Municipal Hospital, Qingdao, China
| | - Changcun Zhang
- Urology Surgery, Qingdao Municipal Hospital, Qingdao, China
| | - Sichuan Hou
- Urology Surgery, Qingdao Municipal Hospital, Qingdao, China
| | - Bowen Weng
- Urology Surgery, Qingdao Municipal Hospital, Qingdao, China
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6
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Alcantara-Zapata DE, Llanos AJ, Nazzal C. High altitude exposure affects male reproductive parameters: Could it also affect the prostate?†. Biol Reprod 2021; 106:385-396. [PMID: 34725677 DOI: 10.1093/biolre/ioab205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/26/2021] [Indexed: 11/14/2022] Open
Abstract
Living at high altitudes and living with prostatic illness are two different conditions closely related to a hypoxic environment. People at high altitudes exposed to acute, chronic, or intermittent hypobaric hypoxia turn on several mechanisms at the system, cellular and molecular level to cope with oxygen atmosphere scarcity maintaining the oxygen homeostasis. This exposure affects the whole organism and function of many systems, such as cardiovascular, respiratory, and reproductive. On the other hand, malignant prostate is related to the scarcity of oxygen in the tissue microenvironment due to its low availability and high consumption due to the swift cell proliferation rates. Based on the literature, this similarity in the oxygen scarcity suggests that hypobaric hypoxia, and other common factors between these two conditions, could be involved in the aggravation of the pathological prostatic status. However, there is still a lack of evidence in the association of this disease in males at high altitudes. This review aims to examine the possible mechanisms that hypobaric hypoxia might negatively add to the pathological prostate function in males who live and work at high altitudes. More profound investigations of hypobaric hypoxia's direct action on the prostate could help understand this exposure's effect and prevent worse prostate illness impact in males at high altitudes.
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Affiliation(s)
| | - Aníbal J Llanos
- Laboratorio de Fisiología y Fisiopatología del Desarrollo, Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile.,Centro Internacional de Estudios Andinos (INCAS), Universidad de Chile, Santiago, Chile
| | - Carolina Nazzal
- Department of Epidemiology. School of Public Health. Faculty of Medicine. University of Chile
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Li Z, Wang S, Gong C, Hu Y, Liu J, Wang W, Chen Y, Liao Q, He B, Huang Y, Luo Q, Zhao Y, Xiao Y. Effects of Environmental and Pathological Hypoxia on Male Fertility. Front Cell Dev Biol 2021; 9:725933. [PMID: 34589489 PMCID: PMC8473802 DOI: 10.3389/fcell.2021.725933] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/23/2021] [Indexed: 12/28/2022] Open
Abstract
Male infertility is a widespread health problem affecting approximately 6%-8% of the male population, and hypoxia may be a causative factor. In mammals, two types of hypoxia are known, including environmental and pathological hypoxia. Studies looking at the effects of hypoxia on male infertility have linked both types of hypoxia to poor sperm quality and pregnancy outcomes. Hypoxia damages testicular seminiferous tubule directly, leading to the disorder of seminiferous epithelium and shedding of spermatogenic cells. Hypoxia can also disrupt the balance between oxidative phosphorylation and glycolysis of spermatogenic cells, resulting in impaired self-renewal and differentiation of spermatogonia, and failure of meiosis. In addition, hypoxia disrupts the secretion of reproductive hormones, causing spermatogenic arrest and erectile dysfunction. The possible mechanisms involved in hypoxia on male reproductive toxicity mainly include excessive ROS mediated oxidative stress, HIF-1α mediated germ cell apoptosis and proliferation inhibition, systematic inflammation and epigenetic changes. In this review, we discuss the correlations between hypoxia and male infertility based on epidemiological, clinical and animal studies and enumerate the hypoxic factors causing male infertility in detail. Demonstration of the causal association between hypoxia and male infertility will provide more options for the treatment of male infertility.
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Affiliation(s)
- Zhibin Li
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China
| | - Sumin Wang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Chunli Gong
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yiyang Hu
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Jiao Liu
- Department of Endoscope, The General Hospital of Shenyang Military Region, Liaoning, China
| | - Wei Wang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yang Chen
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Qiushi Liao
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Bing He
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China.,Department of Laboratory Medicine, General Hospital of Northern Theater Command, Shenyang, China
| | - Yu Huang
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Qiang Luo
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yongbing Zhao
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yufeng Xiao
- Department of Gastroenterology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
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8
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Xu YW, Ou NJ, Song YX, Wang XH, Kang JQ, Yang YJ, Chen YG, Liu XQ. Seminal plasma miR-210-3p induces spermatogenic cell apoptosis by activating caspase-3 in patients with varicocele. Asian J Androl 2021; 22:513-518. [PMID: 31670279 PMCID: PMC7523610 DOI: 10.4103/aja.aja_114_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The aim of this study was to investigate the role of seminal plasma miR-210-3p in the impairment of semen quality caused by varicocele. This study included 102 patients whose semen quality was normal when they were diagnosed with varicocele. A 2-year follow-up for included patients was performed, and they were divided into Group A (semen quality became abnormal) and Group B (semen quality remained normal) according to the results of semen analysis during the follow-up. Semen parameters and seminal plasma miR-210-3p expression were investigated by semen analysis and quantitative real-time polymerase chain reaction, respectively. In vitro experiments with GC-2 cells were performed to explore the role of miR-210-3p in spermatogenic cells. The results of quantitative real-time polymerase chain reaction showed that the level of seminal plasma miR-210-3p in Group A was higher than that in Group B both after 2-year follow-up and when they were diagnosed with varicocele (both P < 0.01). Apoptosis and proliferation assays showed that miR-210-3p induces apoptosis of spermatogenic cells by promoting caspase-3 activation. In conclusion, our study indicated that seminal plasma miR-210-3p induces spermatogenic cell apoptosis by activating caspase-3 in patients with varicocele. Seminal plasma miR-210-3p may be a potential biomarker for predicting impaired semen quality caused by varicocele.
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Affiliation(s)
- Ya-Wei Xu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ning-Jing Ou
- Department of Urology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yu-Xuan Song
- Department of Urology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Xian-Hao Wang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Jia-Qi Kang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yong-Jiao Yang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Ye-Gang Chen
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Xiao-Qiang Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin 300052, China
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9
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Expression of Hypoxia-Inducible Factor1-α in Varicocele Disease: a Comprehensive Systematic Review. Reprod Sci 2021; 29:2731-2743. [PMID: 34313997 DOI: 10.1007/s43032-021-00696-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 07/14/2021] [Indexed: 01/11/2023]
Abstract
Hypoxia has been suggested as an important pathophysiological feature in varicocele disease. On the other hand, the expression of hypoxia-inducible factor 1-alpha (HIF1-α) is associated with the incidence of hypoxia. In this study, we investigated the expression of HIF1-α in varicocele disease through a comprehensive systematic review. We searched PubMed, Scopus, Web of Science, and Embase databases to identify the related studies published up to February 2021. Human studies have demonstrated an increase in the HIF-1α protein expression in the internal spermatic vein (ISV) of the varicocele testicle. HIF-1α mRNA expression in the seminal plasma was significantly higher in infertile varicocele patient compared with fertile ones. Similarly, most animal studies demonstrated a significant increase in HIF-1α gene and protein expression in varicocele testicular tissue compared with control groups. The studies illustrated that hypoxia followed by increased expression of hypoxia-inducible factor 1-alpha (HIF1-α) mRNA and protein occurs in varicocele disease. Expression of HIF-1α regulates the expression of many genes, including VEGF, p53, GLUT, Bax, and Caspase-3, that could be involved in many of the varicocele pathophysiological effects such as DNA fragmentation and apoptosis of sperm cells. Further studies with a large number of patients are necessary and can provide more definitive evidence.
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10
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Wang D, Zhao W, Liu J, Wang Y, Yuan C, Zhang F, Jin G, Qin Q. Effects of HIF-1α on Spermatogenesis of Varicocele Rats by Regulating VEGF/PI3K/Akt Signaling Pathway. Reprod Sci 2020; 28:1161-1174. [PMID: 33237516 DOI: 10.1007/s43032-020-00395-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/09/2020] [Indexed: 12/23/2022]
Abstract
Hypoxia-inducible factor-1α (HIF-1α) participates in the regulation of spermatogenic function in rats with varicocele (VC), and the PI3K/Akt pathway plays an important role in it. In the present research, we applied the CRISPR/Cas9 gene editing technique to silence the HIF-1α gene of VC rat testis, to explore the effect of HIF-1α on apoptosis of spermatogenic cells in VC rats through the PI3K/Akt pathway. Sprague Dawley rats were randomly assigned to four groups, including the normal rat group (group N), VC model group (group V), VC + HIF-1α-lentivirus group (group H), and VC + luciferase-lentivirus group (group L). Apoptosis of spermatogenic cells in rat testis was tested by TUNEL Kit. The morphologic changes of seminiferous tubules were viewed by a light microscope. Expressions of VEGF, Akt, p-Akt, p70S6K, and p-p70S6K were detected by means of Western blot, immunofluorescence, or immunohistochemistry methods. One-way ANOVA was applied to analyze the diverseness between groups. Compared with group N, the distribution of germ cells was disordered, apoptosis of spermatogenic cells increased significantly, and the expression of VEGF, p-Akt, and p-p70S6K was also increased in group V. Compared with group V, the damage of seminiferous epithelium in group H was improved, and the arrangement of the seminiferous epithelium was almost orderly. Apoptosis of spermatogenic cells decreased significantly, and the expression of VEGF, p-Akt, and p-p70S6K protein was decreased (P < 0.05). There was no significant difference between group N and group H (P > 0.05).In conclusion, HIF-1α is regulated by hypoxia in rats with varicocele to regulate its downstream gene VEGF which regulates spermatogenesis, and the PI3K/Akt signaling pathway plays a regulatory role in this process.
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Affiliation(s)
- Danfeng Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shanxi Medical University, 56 Xinjiannan Road, Taiyuan, 030001, Shanxi, China
| | - Wei Zhao
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Shanxi Medical University, 56 Xinjiannan Road, Taiyuan, 030001, Shanxi, China
| | - Jianrong Liu
- Department of Reproductive Medical, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, 29 Shuangtasi Street, Taiyuan, 030012, Shanxi, China
| | - Yimin Wang
- Department of Central Laboratory, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, 29 Shuangtasi Street, Taiyuan, 030012, Shanxi, China
| | - Caixia Yuan
- Department of Reproductive Medical, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, 29 Shuangtasi Street, Taiyuan, 030012, Shanxi, China
| | - Fang Zhang
- Department of Central Laboratory, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, 29 Shuangtasi Street, Taiyuan, 030012, Shanxi, China
| | - Guorong Jin
- Department of Central Laboratory, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, 29 Shuangtasi Street, Taiyuan, 030012, Shanxi, China
| | - Qin Qin
- Department of Reproductive Medical, Shanxi Provincial People's Hospital Affiliated to Shanxi Medical University, 29 Shuangtasi Street, Taiyuan, 030012, Shanxi, China.
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11
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Tsampoukas G, Khan MF, Katsouri A, Akhter W, Moussa M, Deliveliotis K, Papatsoris A, Buchholz N. L-carnitine as primary or adjuvant treatment in infertile patients with varicocele. A systematic review. ACTA ACUST UNITED AC 2020; 92. [PMID: 33016059 DOI: 10.4081/aiua.2020.3.263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/08/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Varicocele has been found to impair the function of the epididymis resulting in subfertility whereas the varicocelectomy can resolve the phenomenon. L-carnitine is regarded as a biomarker for the function of the epididymis and has been found in reduced concentrations in infertile patients of various causes, including infertile men with varicocele. It seems that Lcarnitine and varicocele share clinical significance and the area of research looks promising. OBJECTIVE To identify the role of L-carnitine in the treatment of varicocele. MATERIALS AND METHODS A systematic search was performed in Pubmed/Medline with the terms (L-carnitine) and (varicocele) and (L-carnitine) and (varicocelectomy). Inclusion criteria were studies reported outcomes of L-carnitine administration alone or in duet, as primary or adjuvant treatment to varicocele. Exclusion criteria were non-English language and animal studies. Studies using L-carnitine as part of a panel of therapeutic agents were avoided. RESULTS Only four suitable studies were identified for discussion. In one randomized study, the combination of L-carnitine and cinnoxicam improved semen parameters in patients with non-high-grade varicocele compared to L-carnitine alone and had a favourable effect on pregnancy rates but the effect of grade is unknown. In another study, as an adjuvant treatment to varicocelectomy, L-carnitine showed no clear benefit. Finally, in comparison to surgery, the results are inconclusive; two studies showed some benefit might be expected in low-grade or subclinical varicocele, but surgery appears superior. CONCLUSIONS The evidence regarding the role of L-carnitine as a primary or adjuvant treatment of varicocele is sparse. The pathophysiological significance of L-carnitine implicates a potential role of the molecule in the management of varicocele, but the evidence so far is controversial for any recommendations. L-carnitine might be taken into consideration in selected cases; however, further search is needed in order the optimal role of L-carnitine in infertile patients with varicocele to be clarified.
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Affiliation(s)
- Georgios Tsampoukas
- U-merge Ltd. (Urology for emerging countries), London; Department of Urology, Princess Alexandra Hospital, Harlow.
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12
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Elesawy FM, Abdel Hafeez NA, Abdelsalam OH, Akl EM. Soluble Fibrinogen-like protein 2 plays a role in varicocele induced male infertility. Andrologia 2020; 52:e13626. [PMID: 32350910 DOI: 10.1111/and.13626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/02/2020] [Accepted: 04/12/2020] [Indexed: 12/24/2022] Open
Abstract
Varicocele is the most common cause of male infertility. Several theories have been proposed to explain how varicocele induces infertility. The role of epididymis in male infertility is not fully well established. Fibrinogen-like protein 2 is one of serine proteases and is a potent coagulant in membranous form and immune-modulator in soluble form (sFGL-2) and expressed in the epididymis. There are no previous reports about its possible role in varicocele. This case-controlled study aimed to evaluate the seminal level of sFGL-2 in infertile men with varicocele and in men with idiopathic infertility. This study included 85 participants divided into three groups; 25 normal fertile men, 30 infertile men with varicocele and 30 infertile men of idiopathic cause. Clinical examination, Doppler ultrasound, semen analysis and measurement of seminal level of sFGL-2 were done to all participants. Seminal level of sFGL-2 was significantly elevated in infertile than normal fertile men. Seminal level of sFGL-2 showed negative correlations with sperm concentration, motility and normal morphology. Seminal level of sFGL-2 had a positive correlation with seminal liquefaction time. This study concluded that seminal level of sFGL-2 is increased in infertile men with idiopathic cause and with varicocele induced infertility and affects seminal liquefaction.
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Affiliation(s)
- Fatma M Elesawy
- Department of Dermatology & Andrology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Neveen A Abdel Hafeez
- Department of Clinical Pathology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Osama H Abdelsalam
- Department of Dermatology & Andrology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Essam M Akl
- Department of Dermatology & Andrology, Faculty of Medicine, Benha University, Benha, Egypt
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13
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Effect of silencing HIF-1α gene on testicle spermatogenesis function in varicocele rats. Cell Tissue Res 2019; 378:543-554. [DOI: 10.1007/s00441-019-03064-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 07/01/2019] [Indexed: 12/22/2022]
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14
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Morinda Officinalis Polysaccharides Attenuate Varicocele-Induced Spermatogenic Impairment through the Modulation of Angiogenesis and Relative Factors. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:8453635. [PMID: 31110554 PMCID: PMC6487148 DOI: 10.1155/2019/8453635] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 03/28/2019] [Indexed: 01/07/2023]
Abstract
Evidence supporting best treatment practices for varicocele is lacking. The effects of a water-soluble polysaccharide extracted from Morinda officinalis (MOP) on the progression of varicocele were evaluated in the present study. The extracted MOP was confirmed as having a high purity of 98% with scant protein contamination, and it mainly consisted of glucose, lactose, and xylose at a molar ratio of 7.63:1.23:0.95 glucose:lactose:xylose. MOPs were administered to experimental left varicocele rats immediately after surgery at doses ranging from 25 to 200 mg/kg. As detected by sperm analysis and histopathological staining, the intragastric administration of 100 mg/kg MOPs significantly improved the sperm parameters of bilateral cauda epididymis, attenuated seminiferous epithelial structures, and inhibited germ cell apoptosis. The results of immunofluorescence and immunoblot showed that administration of 100 mg/kg MOPs effectively inhibited angiogenesis in the bilateral testes but modulated the expression of vascular endothelial growth factor (VEGF), matrix metalloproteinase 2 (MMP2), and MMP9 mildly. These results indicate that inhibition of angiogenesis may be one of the mechanisms by which MOP exerts its inhibitive activities on the progression of varicocele, whereas a relative upregulation of VEGF and MMP-9 may be crucial for the spermatogenetic protective effects of 100 mg/kg MOP administration.
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15
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He QQ, Wu X, Liu XP, Yang XJ, Yuan ZM, Zhang Y. 14-3-3 epsilon plays an important role in testicular germ cell apoptosis: A functional proteomic study of experimental varicocele. Andrologia 2019; 51:e13275. [PMID: 30950109 DOI: 10.1111/and.13275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/14/2019] [Accepted: 03/01/2019] [Indexed: 12/20/2022] Open
Abstract
The latest perspective indicates that apoptotic dysregulation is an important mechanism in male infertility induced by varicocele. To elucidate the molecular mechanism of apoptosis caused by varicocele, we used proteomics (2D-MALDI-TOF MS) to identify the altered proteins in the testes of experimental varicocele rats compared with the control. Here, 21 significantly different protein spots were detected by proteomics technology. 14-3-3 epsilon (14-3-3ε) was our subsequent research target because of its function in apoptosis. The expression of 14-3-3ε in rat testes was confirmed by Western blot and immunohistochemistry, and the terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) method was used to analyse the apoptosis of germ cells. GC-1 spg cells transfected with small interfering RNA were used to confirm the function of 14-3-3ε in vitro. 14-3-3ε protein expression decreased, accompanied by a higher apoptosis index in rat testes of the varicocele group. Furthermore, 14-3-3ε siRNA-treated GC-1 spg cells caused the upregulation of the apoptotic rate detected by flow cytometry. The expression of Bax and Bcl-2 was found to be regulated by 14-3-3ε in vitro. Our investigation demonstrated the pro-apoptotic function of the downregulation of 14-3-3ε, which may play an important role in germ cell apoptosis induced by varicocele.
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Affiliation(s)
- Qing Qing He
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao Wu
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao Peng Liu
- Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao Jian Yang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhong Min Yuan
- Department of Neurosurgery, The Second Affiliated Hospital and Institute of Neurosciences of Guangzhou Medical University, Guangzhou, China
| | - Yan Zhang
- Department of Infertility and Sexual Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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16
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Xu Y, Zhang Y, Yang Y, Liu X, Chen Y. Seminal plasma miR‐210‐3p is a biomarker for screening dyszoospermia caused by varicocele. Andrologia 2019; 51:e13244. [PMID: 30714182 DOI: 10.1111/and.13244] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/05/2019] [Accepted: 01/07/2019] [Indexed: 12/31/2022] Open
Affiliation(s)
- Yawei Xu
- Department of Urology, Tianjin Institute of Urology The Second Hospital of Tianjin Medical University Tianjin China
| | - Yuanyuan Zhang
- Department of Thyroid Surgery The First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Yongjiao Yang
- Department of Urology, Tianjin Institute of Urology The Second Hospital of Tianjin Medical University Tianjin China
| | - Xiaoqiang Liu
- Department of Urology Tianjin Medical University General Hospital Tianjin China
| | - Yegang Chen
- Department of Urology, Tianjin Institute of Urology The Second Hospital of Tianjin Medical University Tianjin China
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17
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Ghandehari-Alavijeh R, Tavalaee M, Zohrabi D, Foroozan-Broojeni S, Abbasi H, Nasr-Esfahani MH. Hypoxia pathway has more impact than inflammation pathway on etiology of infertile men with varicocele. Andrologia 2018; 51:e13189. [DOI: 10.1111/and.13189] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 03/04/2018] [Accepted: 03/28/2018] [Indexed: 12/15/2022] Open
Affiliation(s)
- Rana Ghandehari-Alavijeh
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology; ACECR; Isfahan Iran
- Department of Biology, Faculty of Science; NourDanesh Institute of Higher Education; Isfahan Iran
| | - Marziyeh Tavalaee
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology; ACECR; Isfahan Iran
| | - Dina Zohrabi
- Department of Biology, Faculty of Science; NourDanesh Institute of Higher Education; Isfahan Iran
| | - Shaqayeq Foroozan-Broojeni
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology; ACECR; Isfahan Iran
| | | | - Mohammad H. Nasr-Esfahani
- Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology; ACECR; Isfahan Iran
- Isfahan Fertility and Infertility Center; Isfahan Iran
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18
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Wang Y, Chen F, Liang M, Chen S, Zhu Y, Zou Z, Shi B. Grape seed proanthocyanidin extract attenuates varicocele‑induced testicular oxidative injury in rats by activating the Nrf2‑antioxidant system. Mol Med Rep 2017; 17:1799-1806. [PMID: 29138814 DOI: 10.3892/mmr.2017.8020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 02/01/2017] [Indexed: 11/06/2022] Open
Abstract
The present study investigated whether grape seed proanthocyanidin extract (GSPE) can attenuate varicocele‑induced testicular oxidative injury through the nuclear factor (erythroid‑derived 2)‑like 2 (Nrf2) antioxidant pathway. A varicocele model in rats was established by partial ligation of the left renal vein. Following 4 weeks of GSPE administration, the decreased sperm count and motility and other pathological changes caused by varicocele were significantly alleviated, as indicated by the results of computer‑assisted sperm analysis and hematoxylin and eosin staining. In addition, the decreased antioxidant enzyme (superoxide dismutase and glutathione peroxidase) activity and elevated oxidative stress level were partially reversed by administration of GSPE. Furthermore, the apoptotic level of the testis induced by varicocele was decreased by the GSPE treatment, according to terminal deoxynucleotidyl transferase dUTP nick end labeling assay. Additionally, the expression of apoptosis‑related proteins, including B‑cell lymphoma 2 (Bcl‑2), Bcl‑2‑like protein 4 and cleaved caspase‑3, were also affected by GSPE. GSPE activated Nrf2, which is a key antioxidative transcription factor, with elevation of the downstream factor hemeoxygenase‑1. These findings suggest that GSPE can ameliorate abnormal spermatogenesis and testicular injury in varicocele rats, potentially due to its antioxidative activity and ability to activate the Nrf2 pathway.
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Affiliation(s)
- Yong Wang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Fan Chen
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Ming Liang
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Shouzhen Chen
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Yaofeng Zhu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Zhichuan Zou
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
| | - Benkang Shi
- Department of Urology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
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Zhang J, Jin PP, Gong M, Guo JH, Fang K, Yi QT, Zhu RJ. Roles of Fas/FasL-mediated apoptosis and inhibin B in the testicular dysfunction of rats with left-side varicocele. Andrologia 2017; 50. [PMID: 28722192 DOI: 10.1111/and.12850] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2017] [Indexed: 11/26/2022] Open
Affiliation(s)
- J. Zhang
- Department of Urology; Shanghai Pudong Hospital; Fudan University; Shanghai China
| | - P. P. Jin
- Center for Medical Research and Innovation; Shanghai Pudong Hospital; Fudan University; Shanghai China
| | - M. Gong
- Department of Urology; Shanghai Pudong Hospital; Fudan University; Shanghai China
| | - J. H. Guo
- Department of Urology; Shanghai Ninth People's Hospital; Shanghai JiaoTong University School of Medicine; Shanghai China
| | - K. Fang
- Department of Urology; Shanghai Pudong Hospital; Fudan University; Shanghai China
| | - Q. T. Yi
- Department of Urology; Shanghai Pudong Hospital; Fudan University; Shanghai China
| | - R. J. Zhu
- Department of Urology; Shanghai Pudong Hospital; Fudan University; Shanghai China
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20
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Goren MR, Kilinc F, Kayaselcuk F, Ozer C, Oguzulgen I, Hasirci E. Effects of experimental left varicocele repair on hypoxia-inducible factor-1α and vascular endothelial growth factor expressions and angiogenesis in rat testis. Andrologia 2016; 49. [DOI: 10.1111/and.12614] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2016] [Indexed: 01/13/2023] Open
Affiliation(s)
- M. R. Goren
- Department of Urology; Baskent University Adana Medical and Research Center; Adana Turkey
| | - F. Kilinc
- Department of Urology; Baskent University Adana Medical and Research Center; Adana Turkey
| | - F. Kayaselcuk
- Department of Pathology; Baskent University Adana Medical and Research Center; Adana Turkey
| | - C. Ozer
- Department of Urology; Baskent University Adana Medical and Research Center; Adana Turkey
| | - I. Oguzulgen
- Department of Urology; Baskent University School of Medicine; Ankara Turkey
| | - E. Hasirci
- Department of Urology; Baskent University School of Medicine; Ankara Turkey
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