1
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Corda PO, Moreira J, Howl J, Oliveira PF, Fardilha M, Silva JV. Differential Proteomic Analysis of Human Sperm: A Systematic Review to Identify Candidate Targets to Monitor Sperm Quality. World J Mens Health 2024; 42:71-91. [PMID: 37118964 PMCID: PMC10782124 DOI: 10.5534/wjmh.220262] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/24/2023] [Accepted: 02/05/2023] [Indexed: 04/30/2023] Open
Abstract
PURPOSE The advent of proteomics provides new opportunities to investigate the molecular mechanisms underlying male infertility. The selection of relevant targets based on a single analysis is not always feasible, due to the growing number of proteomic studies with conflicting results. Thus, this study aimed to systematically review investigations comparing the sperm proteome of normozoospermic and infertile men to define a panel of proteins with the potential to be used to evaluate sperm quality. MATERIALS AND METHODS A literature search was conducted on PubMed, Web of Science, and Scopus databases following the PRISMA guidelines. To identify proteins systematically reported, first the studies were divided by condition into four groups (asthenozoospermia, low motility, unexplained infertility, and infertility related to risk factors) and then, all studies were analysed simultaneously (poor sperm quality). To gain molecular insights regarding identified proteins, additional searches were performed within the Human Protein Atlas, Mouse Genome Informatics, UniProt, and PubMed databases. RESULTS Thirty-two studies were included and divided into 4 sub-analysis groups. A total of 2752 proteins were collected, of which 38, 1, 3 and 2 were indicated as potential markers for asthenozoospermia, low motility, unexplained infertility and infertility related to risk factors, respectively, and 58 for poor sperm quality. Among the identified proteins, ACR, ACRBP, ACRV1, ACTL9, AKAP4, ATG3, CCT2, CFAP276, CFAP52, FAM209A, GGH, HPRT1, LYZL4, PRDX6, PRSS37, REEP6, ROPN1B, SPACA3, SOD1, SPEM1, SPESP1, SPINK2, TEKT5, and ZPBP were highlighted due to their roles in male reproductive tissues, association with infertility phenotypes or participation in specific biological functions in spermatozoa. CONCLUSIONS Sperm proteomics allows the identification of protein markers with the potential to overcome limitations in male infertility diagnosis and to understand changes in sperm function at the molecular level. This study provides a reliable list of systematically reported proteins that could be potential targets for further basic and clinical studies.
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Affiliation(s)
- Pedro O Corda
- Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Jéssica Moreira
- Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - John Howl
- Research Institute in Healthcare Science, University of Wolverhampton, Wolverhampton, UK
| | - Pedro F Oliveira
- LAQV/REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Margarida Fardilha
- Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal.
| | - Joana Vieira Silva
- Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
- LAQV/REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
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2
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Kimelman D, Torrens A, Bonelli C, Sapiro R. Fertility preservation in male cancer patients. Counseling and reproductive outcomes. Front Cell Dev Biol 2023; 11:1240152. [PMID: 37664467 PMCID: PMC10468982 DOI: 10.3389/fcell.2023.1240152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction: Advances in cancer treatments have determined an increase in survival rates. However, these lifesaving therapies may have a negative impact on reproductive health. To diminish the infertility risk; different fertility preservation strategies have been designed. Sperm freezing is the gold standard fertility preservation method in the case of post-pubertal men. The main objective of this study is to evaluate the fertility status of Uruguayan male cancer survivors who have gone through sperm freezing, as well as to assess oncofertility counseling received by these patients. Methods: This is a descriptive, cross-sectional, observational, and transversal study. A survey was conducted on male cancer survivors who cryopreserved sperm between 1985 and 2021 in "Reprovita Lab and Biobank" which is the only sperm bank in this country. Results: One hundred thirty-five participants answered the survey. At the time of diagnosis, the mean age of patients was 28.8 ± 6.4 years old. Testicular was the most frequent type of cancer (64%). Only, 12% (n = 15) already had children at the time of diagnosis. Among the interviewed survivors, 50% (n = 62) attempted to conceive after cancer treatment, and 68% (n = 42) achieved natural pregnancy. Patients who did not achieve spontaneous conception (n = 11), used their cryopreserved samples, and 45.4% achieved pregnancy. About 86% (n = 107) of survivors believed that the timing of oncofertility referrals was appropriate and 97% considered that having the possibility of protecting their fertility was very important. Eighty percent (n = 101), were advised by their attending physicians, 14% (n = 18) sought advice from family members or friends, and 4% (n = 5) from oncofertility specialists. Discussion: To our knowledge, this is the first study evaluating the reproductive outcomes of male cancer survivors in our country and the region. Most of the interviewed survivors considered fertility preservation as a positive initiative, independent of their reproductive outcomes, reflecting the importance of fertility preservation counseling as one of the most important aspects for futurequality of life of young cancer patients.
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Affiliation(s)
- Dana Kimelman
- Oncofertility Program, Centro Hospitalario Pereira Rossell, Administración de los Servicios de Salud del Estado (ASSE), Montevideo, Uruguay
- Reprovita Lab and Biobank, Montevideo, Uruguay
- Clínica Ginecotocológica “B”, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | | | | | - Rossana Sapiro
- Unidad Académica Histologia y Embriologia, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
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3
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Wu S, Li X, Huang G, Guo J, Zhang X, Liao L, Zhi W, Li K, Wang Y, Chu Z, Shang L, Yu X, Yu K, Xu W. Dissecting Sperm Mitochondrial G-Quadruplex Structures Using a Fluorescent Probe Biomarker to Monitor and Regulate Fertilization Capability. ACS Sens 2023; 8:2186-2196. [PMID: 37224082 PMCID: PMC10295354 DOI: 10.1021/acssensors.3c00068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/09/2023] [Indexed: 05/26/2023]
Abstract
To monitor the levels of mitochondrial DNA G-quadruplexes (mtDNA G4s) in spermatozoa and to explore the possibility using mtDNA G4s as a reliable marker in patients with multiple clinical insemination failures, a novel chemical TPE-mTO probe engineered in our previous work was used on both samples from the mice sperm and from patients with fertilization failure. Expression of valosin-containing protein and the zona-free hamster egg assay were used to evaluate mitophagy and human sperm penetration. RNA-sequencing was used to explore expression changes of key genes affected by mtDNA G4s. Results showed that the probe can track mtDNA G4s in spermatozoa easily and quickly with fewer backgrounds. Significantly increased mtDNA G4s were also found in patients with fertilization failure, using the flow-cytometry-based TPE-mTO probe detection method. A sperm-hamster egg penetration experiment showed that abnormal fertilization caused by increased mtDNA G4s can be effectively restored by a mitophagy inducer. This study provides a novel method for monitoring etiological biomarkers in patients with clinical infertility and treatment for patients with abnormal fertilization caused by mtDNA G4 dysfunction.
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Affiliation(s)
- Sixian Wu
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Xiaoliang Li
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
- Reproduction
Medical Centre, West China Second University
Hospital, Sichuan University, Chengdu 610041, China
| | - Gelin Huang
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Juncen Guo
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Xueguang Zhang
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Lu Liao
- Puhua
Technology Co., Ltd., Chengdu 610200, China
| | - Weiwei Zhi
- Sichuan
Provincial Maternity and Child Health Care Hospital, Chengdu 610045, China
| | - Kun Li
- Key
Laboratory of Green Chemistry and Technology (Ministry of Education),
College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yan Wang
- Reproduction
Medical Centre, West China Second University
Hospital, Sichuan University, Chengdu 610041, China
| | - Zhiwen Chu
- West
China School of Pharmacy, Sichuan University, Chengdu 610064, China
| | - Lijun Shang
- School of
Human Sciences, London Metropolitan University, London N7 8DB, U.K.
| | - Xiaoqi Yu
- Key
Laboratory of Green Chemistry and Technology (Ministry of Education),
College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Kangkang Yu
- Key
Laboratory of Bio-resources and Eco-environment (Ministry of Education),
College of Life Sciences, Sichuan University, Chengdu 610064, China
- Key
Laboratory of Green Chemistry and Technology (Ministry of Education),
College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wenming Xu
- Joint
Laboratory of Reproductive Medicine, SCU-CUHK, Key Laboratory of Obstetric,
Gynaecologic and Paediatric Diseases and Birth Defects of Ministry
of Education, West China Second University
Hospital, Med-X Centre for Manufacturing, Sichuan University, Chengdu 610041, People’s Republic of China
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Agarwal A, Sharma R, Gupta S, Finelli R, Parekh N, Selvam MKP, Pompeu CP, Madani S, Belo A, Darbandi M, Singh N, Darbandi S, Covarrubias S, Sadeghi R, Arafa M, Majzoub A, Caraballo M, Giroski A, McNulty K, Durairajanayagam D, Henkel R. Standardized Laboratory Procedures, Quality Control and Quality Assurance Are Key Requirements for Accurate Semen Analysis in the Evaluation of Infertile Male. World J Mens Health 2022; 40:52-65. [PMID: 33987999 PMCID: PMC8761242 DOI: 10.5534/wjmh.210022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 11/25/2022] Open
Abstract
Semen analysis is a basic test for evaluating male fertility potential, as it plays an essential role in driving the future management and treatment of infertility in couples. Manual semen analysis includes the evaluation of both macroscopic and microscopic parameters, whereas automated semen analysis is conducted through a computer-aided sperm analysis system and can include additional parameters that are not evaluated by manual analysis. Both quality control (QC) and quality assurance (QA) are important to ensure reproducible results for semen analysis, and represent fundamental checks and balances of all stages (pre-analytical, analytical, and post-analytical) of semen analysis. To ensure accuracy and precision, the laboratory technicians' performance should be evaluated biannually. This narrative review aims to describe standardized laboratory procedures for an accurate assessment of semen parameters that incorporate both QC and QA practices.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland, OH, USA.
| | - Rakesh Sharma
- American Center for Reproductive Medicine, Cleveland, OH, USA
| | - Sajal Gupta
- American Center for Reproductive Medicine, Cleveland, OH, USA
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland, OH, USA
| | - Neel Parekh
- American Center for Reproductive Medicine, Cleveland, OH, USA
| | - Manesh Kumar Panner Selvam
- American Center for Reproductive Medicine, Cleveland, OH, USA
- Department of Urology, Tulane University Health Sciences Center, New Orleans, LA, USA
| | | | - Sarah Madani
- Department of Biology and Physiology of Organisms, Faculty of Biological Sciences, University of Science and Technnology, Houari Boumedien, Algiers, Algeria
| | - Andrea Belo
- Huntington Centro de Medicina Reproditiva S/A, Sao Paulo, São Paulo, Brazil
| | - Mahsa Darbandi
- Fetal Health Research Center. Hope Generation Foundation, Tehran, Iran
| | | | - Sara Darbandi
- Fetal Health Research Center. Hope Generation Foundation, Tehran, Iran
| | | | - Raha Sadeghi
- American Center for Reproductive Medicine, Cleveland, OH, USA
| | - Mohamed Arafa
- American Center for Reproductive Medicine, Cleveland, OH, USA
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Ahmad Majzoub
- American Center for Reproductive Medicine, Cleveland, OH, USA
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medicine-Qatar, Doha, Qatar
| | | | - Alyssa Giroski
- American Center for Reproductive Medicine, Cleveland, OH, USA
| | | | - Damayanthi Durairajanayagam
- Department of Physiology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland, OH, USA
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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5
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Vickram AS, Anbarasu K, Jeyanthi P, Gulothungan G, Nanmaran R, Thanigaivel S, Sridharan TB, Rohini K. Identification and Structure Prediction of Human Septin-4 as a Biomarker for Diagnosis of Asthenozoospermic Infertile Patients-Critical Finding Toward Personalized Medicine. Front Med (Lausanne) 2021; 8:723019. [PMID: 34926486 PMCID: PMC8677696 DOI: 10.3389/fmed.2021.723019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/25/2021] [Indexed: 11/22/2022] Open
Abstract
Semen parameters are been found as a key factor to evaluate the count and morphology in the given semen sample. The deep knowledge of male infertility will unravel with semen parameters correlated with molecular and biochemical parameters. The current research study is to identify the motility associated protein and its structure through the in-silico approach. Semen samples were collected and initial analysis including semen parameters was analyzed by using the World Health Organization protocol. Semen biochemical parameters, namely, seminal plasma protein concentration, fructose content, and glucosidase content were calculated and evaluated for correlation. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) were carried out for identification of Septin-4 presence in the semen sample. Mascot search was done for protein conformation and in-silico characterization of Septin-4 by structural modeling in Iterative Threading Assembly Refinement (I-TASSER). Twenty-five nanoseconds molecular dynamics (MD) simulations results showed the stable nature of Septin-4 in the dynamic system. Overall, our results showed the presence of motility-associated protein in normospermia and control samples and not in the case of asthenospermia and oligoasthenospermia. Molecular techniques characterized the presence of Septin-4 and as a novel biomarker for infertility diagnosis.
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Affiliation(s)
- A S Vickram
- Department of Biotechnology, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - K Anbarasu
- Department of Bioinformatics, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - Palanivelu Jeyanthi
- Department of Biotechnology, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, India
| | - G Gulothungan
- Department of Biomedical Engineering, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - R Nanmaran
- Department of Biomedical Engineering, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - S Thanigaivel
- Department of Biotechnology, Saveetha School of Engineering (SSE), SIMATS, Chennai, India
| | - T B Sridharan
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, India
| | - Karunakaran Rohini
- Unit of Biochemistry, Faculty of Medicine, AIMST University, Bedong, Malaysia
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6
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Seminal and testicular microbiome and male fertility: A systematic review. Porto Biomed J 2021; 6:e151. [PMID: 34881355 PMCID: PMC8647872 DOI: 10.1097/j.pbj.0000000000000151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 03/20/2021] [Indexed: 11/26/2022] Open
Abstract
Supplemental Digital Content is available in the text Microbiome is of upmost importance for the well-being of the human body. Based on culture and PCR methods, seminal flora has been pointed as a potential cause for some of the unexplained male infertility. This is a systematic review about the effect of seminal microbiota studied by Next Generation Sequencing techniques on sperm quality and male fertility, performed according to PRISMA statement. Nine articles were included. Results of different studies are diverse. It seems that microbiota may a play a role in seminal quality and further male fertility, but the way this effect is modulated is still to be unknown. Lactobacillus spp seemed to play a beneficial role in semen quality, but the role of the remaining bacteria is unclear. Due to the lack of research and the incongruence of the results so far, the effect of microbiota on seminal quality is still unclear.
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7
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Agarwal A, Baskaran S, Parekh N, Cho CL, Henkel R, Vij S, Arafa M, Panner Selvam MK, Shah R. Male infertility. Lancet 2021; 397:319-333. [PMID: 33308486 DOI: 10.1016/s0140-6736(20)32667-2] [Citation(s) in RCA: 459] [Impact Index Per Article: 153.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023]
Abstract
It is estimated that infertility affects 8-12% of couples globally, with a male factor being a primary or contributing cause in approximately 50% of couples. Causes of male subfertility vary highly, but can be related to congenital, acquired, or idiopathic factors that impair spermatogenesis. Many health conditions can affect male fertility, which underscores the need for a thorough evaluation of patients to identify treatable or reversible lifestyle factors or medical conditions. Although semen analysis remains the cornerstone for evaluating male infertility, advanced diagnostic tests to investigate sperm quality and function have been developed to improve diagnosis and management. The use of assisted reproductive techniques has also substantially improved the ability of couples with infertility to have biological children. This Seminar aims to provide a comprehensive overview of the assessment and management of men with infertility, along with current controversies and future endeavours.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Neel Parekh
- Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Chak-Lam Cho
- SH Ho Urology Center, Department of Surgery, Chinese University of Hong Kong, Hong Kong
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA; Department of Medical Bioscience, University of Western Cape, Bellville, South Africa; Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - Sarah Vij
- Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Mohamed Arafa
- Male Infertility Unit, Urology Department, Hamad Medical Corporation, Doha, Qatar; Andrology Department, Cairo University, Cairo, Egypt
| | | | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Center, Mumbai, India
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8
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Gajbhiye R, Khan S, Kulkarni V, Shah R, Gokral J, Meherji P, Vadigoppula A, Patil A, Bhurke A, Kokate P, Barai R, Surve S, Modi D, Mahale S. Clinical presentations and semen characteristics of men attending the secondary referral infertility clinic at Mumbai, India. J Hum Reprod Sci 2021; 14:356-364. [PMID: 35197680 PMCID: PMC8812386 DOI: 10.4103/jhrs.jhrs_93_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/07/2021] [Accepted: 11/08/2021] [Indexed: 11/30/2022] Open
Abstract
Background: Limited information is available on the aetiology and semen profiles of male infertility in Indian population. Aim: The aim of this study is to study the clinical and semen characteristics of men attending the infertility clinic and also to understand the impact of World Health Organization (WHO) 2010 reference values on the diagnosis of male infertility. Setting and Design: A retrospective study evaluating the medical case records (January 2005 to December 2015, [n = 1906]) of men attending infertility clinic in Mumbai, India. Materials and Methods: The aetiology was classified based on the andrology evaluation and other investigations. Semen profiles were compared during the years 2005–2010 and 2011–2015 using WHO 1999 and WHO 2010 criteria, respectively. Statistical Analysis: The Chi-square and Mann–Whitney U tests were performed using Open Source Epidemiological software and Social science calculators. Results: The aetiology of male infertility was determined in 62% of the men; while the cause remained undetermined in 38%. Varicocele (25%), urogenital infections (10%), sexual dysfunctions (8%) and vas aplasia (8%) were identified as major aetiologies in our cohort. Men with sexual dysfunctions and vas aplasia were significantly higher during the years 2011–2015 as compared to 2005–2010. Men having normozoospermia (10%) and azoospermia (3%) were increased, whereas those having oligoasthenozoospermia (17%) were reduced in 2011–2015 as compared to 2005–2010. According to WHO 1999 criteria , 12-15% of men showed abnormal semen profiles. The semen parameters of these men became normal on using WHO 2010 reference values. Conclusions: Varicocele is the most common aetiology in infertile men. Idiopathic infertility was seen in a higher proportion among the infertile men.
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9
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Jang WS, Kim KH, Lim KT, Lee J, Heo JE, Kwon H, Kang H, Lee JH, Choe SA, Kim DK. External validation of the post-varicocele repair semen analysis nomogram to predict total motile sperm count: A multicenter study. Andrologia 2020; 52:e13809. [PMID: 32882055 DOI: 10.1111/and.13809] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/17/2020] [Accepted: 07/27/2020] [Indexed: 11/29/2022] Open
Abstract
Total motile sperm count is an important parameter for predicting the probability of natural pregnancy. We have externally validated the Samplaski's post-varicocele repair semen analysis nomogram to confirm the predictive accuracy of total motile sperm count. A total of 300 patients who had undergone varicocelectomy between July 2016 and July 2019 from 4 treatment centres were included in this validation cohort study. The predictive performance of the externally validated nomogram was revealed by applying the Pearson correlation coefficient (R = 0.328; 95% confidence interval (CI) 0.220-0.435; p < .001). Compared to Samplaski's nomogram result (R = 0.581; 95% CI 0.186-0.729), our study also revealed a statistically significant rate. However, it had a relatively lower correlation coefficient rate. Notably, the predicted total motile sperm count was lower than the observed post-varicocelectomy total motile sperm count. The calibration plot revealed that the discrepancy between the predicted and observed total motile sperm count was plausible. However, it had low explanatory power in this nomogram model. This validation study demonstrates that the post-varicocele repair Samplaski's nomogram predicts a relatively lower total motile sperm count than the observed count.
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Affiliation(s)
- Won Sik Jang
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ki Hong Kim
- Department of Urology, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Kyoung Taek Lim
- Department of Urology, Maria Fertility Hospital, Seoul, Korea
| | - Jongsoo Lee
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Eun Heo
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyojeong Kwon
- Andrology Laboratory, CHA Fertility Center Seoul Station, Seoul, Korea
| | - Hyoeun Kang
- Andrology Laboratory, CHA Fertility Center Seoul Station, Seoul, Korea
| | - Jae Ho Lee
- Department of Biomedical Science, College of Life Science, CHA Fertility Center Seoul Station, CHA University, Seoul, Korea
| | - Seung-Ah Choe
- Department of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA University School of Medicine, Seoul, Korea
| | - Dae Keun Kim
- Department of Urology, CHA Fertility Center Seoul Station, CHA University School of Medicine, Seoul, Korea
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10
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Baskaran S, Finelli R, Agarwal A, Henkel R. Diagnostic value of routine semen analysis in clinical andrology. Andrologia 2020; 53:e13614. [PMID: 32400107 DOI: 10.1111/and.13614] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/01/2020] [Indexed: 01/11/2023] Open
Abstract
Infertility is a major health issue affecting over 48.5 million couples around the world, with the male factor accounting for about 50% of the cases. The conventional semen analysis recommended by the World Health Organization (WHO) is the cornerstone in the evaluation of male fertility status. It includes macroscopic and microscopic evaluation of the ejaculate, which reflects the production of spermatozoa in the testes, the patency of the duct system and the glandular secretory activity. Evaluation of seminal fructose, sperm vitality and leucocytes (Endtz test) are useful adjuncts to semen analysis that provide information on specific clinical conditions. Though several computer-assisted sperm analysis (CASA) systems have been developed, conventional methods for semen analysis are still widely accepted in clinical practice. This review summarises the conventional techniques used in routine semen analysis and their diagnostic value in clinical andrology.
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Affiliation(s)
- Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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Douglas C, Parekh N, Kahn LG, Henkel R, Agarwal A. A Novel Approach to Improving the Reliability of Manual Semen Analysis: A Paradigm Shift in the Workup of Infertile Men. World J Mens Health 2019; 39:172-185. [PMID: 31749341 PMCID: PMC7994658 DOI: 10.5534/wjmh.190088] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 10/08/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022] Open
Abstract
Conventional semen analysis (SA) is an essential component of the male infertility workup, but requires laboratories to rigorously train and monitor technicians as well as regularly perform quality assurance assessments. Without such measures there is room for error and, consequently, unreliable results. Furthermore, clinicians often rely heavily on SA results when making diagnostic and treatment decisions, however conventional SA is only a surrogate marker of male fecundity and does not guarantee fertility. Considering these challenges, the last several decades have seen the development of many advances in SA methodology, including tests for sperm DNA fragmentation, acrosome reaction, and capacitation. While these new diagnostic tests have improved the scope of information available to clinicians, they are expensive, time-consuming, and require specialized training. The latest advance in laboratory diagnostics is the measurement of seminal oxidation-reduction potential (ORP). The measurement of ORP in an easy, reproducible manner using a new tool called the Male Infertility Oxidative Stress System (MiOXSYS) has demonstrated ORP's potential as a feasible adjunct test to conventional SA. Additionally, the measurement of ORP by this device has been shown to be predictive of both poor semen quality and male infertility. Assessing ORP is a novel approach to both validating manual SA results and identifying patients who may benefit from treatment of male oxidative stress infertility.
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Affiliation(s)
- Christopher Douglas
- American Center for Reproductive Medicine, Cleveland Clinic, OH, USA.,Texas College of Osteopathic Medicine, Fort Worth, TX, USA
| | - Neel Parekh
- American Center for Reproductive Medicine, Cleveland Clinic, OH, USA.,Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Linda G Kahn
- American Center for Reproductive Medicine, Cleveland Clinic, OH, USA.,Department of Pediatrics, New York University School of Medicine, New York City, NY, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, OH, USA.
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