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Cakir C, Kuspinar G, Ganiyev A, Aslan K, Kasapoglu I, Kilicarslan H, Ata B, Uncu G, Avcı B. Reliability of hypo-osmotic swelling test on fresh and frozen-thawed ejaculated or testicular immotile sperm: A sibling oocyte study. Eur J Obstet Gynecol Reprod Biol 2024; 293:132-141. [PMID: 38159442 DOI: 10.1016/j.ejogrb.2023.12.032] [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: 08/07/2023] [Revised: 12/05/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
The viability of sperm is a crucial factor for achieving a successful pregnancy in intracytoplasmic sperm injection (ICSI) cycles. The aim of this study was to evaluate the accuracy of the hypo-osmotic swelling test (HOST) in fresh and frozen-thawed sperm samples of different origins (ejaculated/testicular). A retrospective analysis was conducted on the outcomes of 2167 oocytes subjected to ICSI using motile and immotile-HOST-positive sperm from 2011 to 2023. We evaluated embryonic development, as well as clinical, obstetric, and neonatal outcomes in four groups based on different sperm origins (ejaculated/testicular) and processing (fresh/frozen). When comparing the results of ICSI between motile and immotile-HOST-positive sperm within each group, it was observed that there were no significant differences in the outcomes for fresh samples. However, for frozen-thawed samples, fertilization rates and blastocyst development rates were significantly lower when ICSI was performed with immotile-HOST-positive sperm compared to motile sperm. Of note, clinical, obstetric, and neonatal outcomes were statistically similar across all groups. Our findings indicate that HOST is more reliable in fresh samples than in those subjected to the freeze-thaw process. Nonetheless, HOST is considered a safe method for selecting viable sperm in all subgroups.
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Affiliation(s)
- Cihan Cakir
- Bursa Uludag University School of Medicine, ART Center, Department of Histology and Embryology, Bursa, Turkey.
| | - Goktan Kuspinar
- Bursa Uludag University School of Medicine, ART Center, Department of Histology and Embryology, Bursa, Turkey
| | - Alim Ganiyev
- Bursa Uludag University School of Medicine, ART Center, Department of Histology and Embryology, Bursa, Turkey
| | - Kiper Aslan
- Bursa Uludag University School of Medicine, ART Center, Department of Obstetrics and Gynecology, Bursa, Turkey
| | - Isil Kasapoglu
- Bursa Uludag University School of Medicine, ART Center, Department of Obstetrics and Gynecology, Bursa, Turkey
| | - Hakan Kilicarslan
- Bursa Uludag University School of Medicine, Department of Urology, Bursa, Turkey
| | - Baris Ata
- Koc University School of Medicine, ART Center, Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - Gurkan Uncu
- Bursa Uludag University School of Medicine, ART Center, Department of Obstetrics and Gynecology, Bursa, Turkey
| | - Berrin Avcı
- Bursa Uludag University School of Medicine, ART Center, Department of Histology and Embryology, Bursa, Turkey
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2
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Pareek C, Badge AK, Bawaskar PA, More A, Nair N. Reviving Spermatogenesis: A Case Report on an Approach to Treat Non-obstructive Azoospermia Using Theophylline, Pentoxifylline, and Hyaluronic Acid. Cureus 2023; 15:e50623. [PMID: 38226124 PMCID: PMC10788697 DOI: 10.7759/cureus.50623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/16/2023] [Indexed: 01/17/2024] Open
Abstract
In this report, we present the clinical management of a male patient diagnosed with non-obstructive azoospermia (NOA), a condition characterized by the absence of sperm in the ejaculate due to impaired spermatogenesis. A 37-year-old patient underwent two surgical procedures: testicular sperm aspiration (TESA) and percutaneous epididymal sperm aspiration (PESA). Surprisingly, the beta-human chorionic gonadotropins (β-HCG) testing that followed produced promising findings suggesting NOA syndrome may be reversible. Theophylline and pentoxifylline, phosphodiesterase inhibitors with immunomodulatory effects, were creatively used in this case study to increase sperm viability and activation after PESA. Hyaluronic acid was also used as an additional therapy because it is well known for aiding in sperm development and binding to oocytes. The patient underwent hyaluronic acid, which can potentially increase the fertilization rate and improve the selection of sperm. This in-depth case study offers insightful information on the effective management of NOA by combining theophylline, pentoxifylline, and hyaluronic acid. The results highlight the ability of these therapies to revive spermatogenesis, offering a cutting-edge method of treating male infertility. More research is required to clarify the underlying processes and confirm the effectiveness of this strategy in more successful reproductive medicine therapies.
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Affiliation(s)
- Charu Pareek
- Clinical Embryology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
| | - Ankit K Badge
- Microbiology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
| | - Pranita A Bawaskar
- Clinical Embryology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
| | - Akash More
- Clinical Embryology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
| | - Nancy Nair
- Clinical Embryology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research (Deemed to be University), Wardha, IND
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3
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Lundin K, Bentzen JG, Bozdag G, Ebner T, Harper J, Le Clef N, Moffett A, Norcross S, Polyzos NP, Rautakallio-Hokkanen S, Sfontouris I, Sermon K, Vermeulen N, Pinborg A. Good practice recommendations on add-ons in reproductive medicine†. Hum Reprod 2023; 38:2062-2104. [PMID: 37747409 PMCID: PMC10628516 DOI: 10.1093/humrep/dead184] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Indexed: 09/26/2023] Open
Abstract
STUDY QUESTION Which add-ons are safe and effective to be used in ART treatment? SUMMARY ANSWER Forty-two recommendations were formulated on the use of add-ons in the diagnosis of fertility problems, the IVF laboratory and clinical management of IVF treatment. WHAT IS KNOWN ALREADY The innovative nature of ART combined with the extremely high motivation of the patients has opened the door to the wide application of what has become known as 'add-ons' in reproductive medicine. These supplementary options are available to patients in addition to standard fertility procedures, typically incurring an additional cost. A diverse array of supplementary options is made available, encompassing tests, drugs, equipment, complementary or alternative therapies, laboratory procedures, and surgical interventions. These options share the common aim of stating to enhance pregnancy or live birth rates, mitigate the risk of miscarriage, or expedite the time to achieving pregnancy. STUDY DESIGN, SIZE, DURATION ESHRE aimed to develop clinically relevant and evidence-based recommendations focusing on the safety and efficacy of add-ons currently used in fertility procedures in order to improve the quality of care for patients with infertility. PARTICIPANTS/MATERIALS, SETTING, METHODS ESHRE appointed a European multidisciplinary working group consisting of practising clinicians, embryologists, and researchers who have demonstrated leadership and expertise in the care and research of infertility. Patient representatives were included in the working group. To ensure that the guidelines are evidence-based, the literature identified from a systematic search was reviewed and critically appraised. In the absence of any clear scientific evidence, recommendations were based on the professional experience and consensus of the working group. The guidelines are thus based on the best available evidence and expert agreement. Prior to publication, the guidelines were reviewed by 46 independent international reviewers. A total of 272 comments were received and incorporated where relevant. MAIN RESULTS AND THE ROLE OF CHANCE The multidisciplinary working group formulated 42 recommendations in three sections; diagnosis and diagnostic tests, laboratory tests and interventions, and clinical management. LIMITATIONS, REASONS FOR CAUTION Of the 42 recommendations, none could be based on high-quality evidence and only four could be based on moderate-quality evidence, implicating that 95% of the recommendations are supported only by low-quality randomized controlled trials, observational data, professional experience, or consensus of the development group. WIDER IMPLICATIONS OF THE FINDINGS These guidelines offer valuable direction for healthcare professionals who are responsible for the care of patients undergoing ART treatment for infertility. Their purpose is to promote safe and effective ART treatment, enabling patients to make informed decisions based on realistic expectations. The guidelines aim to ensure that patients are fully informed about the various treatment options available to them and the likelihood of any additional treatment or test to improve the chance of achieving a live birth. STUDY FUNDING/COMPETING INTEREST(S) All costs relating to the development process were covered from ESHRE funds. There was no external funding of the development process or manuscript production. K.L. reports speakers fees from Merck and was part of a research study by Vitrolife (unpaid). T.E. reports consulting fees from Gynemed, speakers fees from Gynemed and is part of the scientific advisory board of Hamilton Thorne. N.P.P. reports grants from Merck Serono, Ferring Pharmaceutical, Theramex, Gedeon Richter, Organon, Roche, IBSA and Besins Healthcare, speakers fees from Merck Serono, Ferring Pharmaceutical, Theramex, Gedeon Richter, Organon, Roche, IBSA and Besins Healthcare. S.R.H. declares being managing director of Fertility Europe, a not-for-profit organization receiving financial support from ESHRE. I.S. is a scientific advisor for and has stock options from Alife Health, is co-founder of IVFvision LTD (unpaid) and received speakers' fee from the 2023 ART Young Leader Prestige workshop in China. A.P. reports grants from Gedeon Richter, Ferring Pharmaceuticals and Merck A/S, consulting fees from Preglem, Novo Nordisk, Ferring Pharmaceuticals, Gedeon Richter, Cryos and Merck A/S, speakers fees from Gedeon Richter, Ferring Pharmaceuticals, Merck A/S, Theramex and Organon, travel fees from Gedeon Richter. The other authors disclosed no conflicts of interest. DISCLAIMER This Good Practice Recommendations (GPRs) document represents the views of ESHRE, which are the result of consensus between the relevant ESHRE stakeholders and are based on the scientific evidence available at the time of preparation.ESHRE GPRs should be used for information and educational purposes. They should not be interpreted as setting a standard of care or bedeemedinclusive of all proper methods of care, or be exclusive of other methods of care reasonably directed to obtaining the same results.Theydo not replace the need for application of clinical judgement to each individual presentation, or variations based on locality and facility type.Furthermore, ESHRE GPRs do not constitute or imply the endorsement, or favouring, of any of the included technologies by ESHRE.
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Affiliation(s)
| | - K Lundin
- Department Reproductive Medicine, Sahlgrenska University Hospital, Göteborg, Sweden
| | - J G Bentzen
- The Fertility Department, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
| | - G Bozdag
- Department Obstetrics and Gynecology, Koc University School of Medicine, Istanbul, Turkey
| | - T Ebner
- Department of Gynecology, Obstetrics, and Gynecological Endocrinology, Kepler University, MedCampus IV, Linz, Austria
| | - J Harper
- Institute for Women’s Health, London, UK
| | - N Le Clef
- European Society of Human Reproduction and Embryology, Brussels, Belgium
| | - A Moffett
- Department of Pathology, University of Cambridge, Cambridge, UK
| | | | - N P Polyzos
- Department Reproductive Medicine, Dexeus University Hospital, Barcelona, Spain
| | | | | | - K Sermon
- Research Group Reproduction and Genetics, Vrije Universiteit Brussel, Brussels, Belgium
| | - N Vermeulen
- European Society of Human Reproduction and Embryology, Brussels, Belgium
| | - A Pinborg
- The Fertility Department, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
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4
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Gala B, Badge A, Bawaskar P, Gajbe U, Singh BR, Kohale M. The Potential of Theophylline and Pentoxifylline in Sperm Optimization and Its Intracytoplasmic Sperm Injection Outcomes. Cureus 2023; 15:e48192. [PMID: 38054131 PMCID: PMC10694395 DOI: 10.7759/cureus.48192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/02/2023] [Indexed: 12/07/2023] Open
Abstract
Sperm motility is an essential selection criteria by embryologists at the time of intracytoplasmic sperm injection (ICSI). One method of testing sperm viability is to induce sperm motility by increasing cyclic adenosine monophosphate (cAMP) levels by treating a semen sample with phosphodiesterase inhibitors (PDEIs), such as theophylline and pentoxifylline. It explores the implications of PDEI in medical care, reflecting on its effects in clinical settings and recognizing potential topics for future exploration. This analysis revealed that by incorporating stimulants that activate movements, the time it took to single out sperms was markedly reduced, and consequently, the sperms were safeguarded from a prolonged period of oxidative stress. Furthermore, theophylline was found to advance sperm motility, consequently resulting in several initially immobile spermatozoa displaying rapid progressive motility. Higher fertilization rate, cleavage rate, good quality embryos (grade I), and higher biochemical and clinical pregnancy rates were found with artificial sperm activation (ASA) using pentoxifylline and theophylline. This review emphasizes the need for more research to evaluate the drug's long-term safety and investigate the effects of theophylline and pentoxifylline on postfertilization parameters, such as embryo development, implantation, and pregnancy outcomes. These areas of investigation are important for understanding the complete impact of these agents and to ensure their safe and effective implementation in clinical practice.
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Affiliation(s)
- Bhavika Gala
- Clinical Embryology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education & Research (Deemed to be University), Nagpur, IND
| | - Ankit Badge
- Microbiology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education & Research (Deemed to be University), Nagpur, IND
| | - Pranita Bawaskar
- Clinical Embryology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education & Research (Deemed to be University), Nagpur, IND
| | - Ujwal Gajbe
- Anatomy, Datta Meghe Medical College, Datta Meghe Institute of Higher Education & Research (Deemed to be University), Nagpur, IND
| | - Brij Raj Singh
- Anatomy, Datta Meghe Medical College, Datta Meghe Institute of Higher Education & Research (Deemed to be University), Nagpur, IND
| | - Mangesh Kohale
- Pathology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education & Research (Deemed to be University), Nagpur, IND
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5
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Xue Y, Xiong Y, Cheng X, Li K. Applications of laser technology in the manipulation of human spermatozoa. Reprod Biol Endocrinol 2023; 21:93. [PMID: 37865766 PMCID: PMC10589983 DOI: 10.1186/s12958-023-01148-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/08/2023] [Indexed: 10/23/2023] Open
Abstract
The application of laser technology in the field of assisted reproductive technology (ART) has experienced rapid growth over the past decades owing to revolutionary techniques such as intracytoplasmic sperm injection (ICSI), preimplantation genetic testing (PGT), and in vitro manipulation of gametes and embryos. For male gametes, in vitro manipulation techniques include spermatozoa selection, sorting, immobilization, and quality assessment. A number of studies have been conducted to investigate the application of different laser technologies in the manipulation of human spermatozoa. However, there is a lack of a unified understanding of laser application in the in vitro manipulation of sperm and safety considerations in ART and, subsequently, the inability to make clear and accurate decisions on the clinical value of these laser technologies. This review summarizes the advancements and improvements of laser technologies in the manipulation of human spermatozoa, such as photobiomodulation therapy, laser trap systems for sperm analysis and sorting, laser-assisted selection of immotile sperm and laser-assisted immobilization of sperm prior to ICSI. The safety of those technologies used in ART is also discussed. This review will provide helpful and comprehensive insight into the applications of laser technology in the manipulation of human spermatozoa.
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Affiliation(s)
- Yamei Xue
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yuping Xiong
- Institute for Reproductive Health, School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Xiaohong Cheng
- Institute for Reproductive Health, School of Pharmacy, Hangzhou Medical College, Hangzhou, China
| | - Kun Li
- Institute for Reproductive Health, School of Pharmacy, Hangzhou Medical College, Hangzhou, China.
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6
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Satish M, Sandhya K, Nitin K, Yashas Kiran N, Aleena B, Satish Kumar A, Guruprasad K, Rajakumara E. Computational, biochemical and ex vivo evaluation of xanthine derivatives against phosphodiesterases to enhance the sperm motility. J Biomol Struct Dyn 2022:1-11. [PMID: 35696450 DOI: 10.1080/07391102.2022.2085802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Enhancing sperm motility in vitro has immensely benefited assisted conception methods. Phosphodiesterases (PDE) break the second messenger cAMP, and therefore, inhibition of their catalytic activity enhances the sperm motility through maintaining cAMP homeostasis in sperm. In view of identifying the molecules that could inhibit PDE functioning in spermatozoa, we aimed to evaluate the phosphodiesterase inhibitors (PDEI) - xanthine derivatives - acefylline, dyphylline and proxyphylline to repurpose them for assisted reproductive technology. These are available in the market as pharmaceutical agents to treat mainly respiratory system diseases. Based on the structure guided in silico studies, we predicted that these molecules bind to the cAMP binding catalytic pocket of PDE enzymes, and further molecular dynamics simulation analysis indicated that these molecules form the stable complexes. Isothermal titration calorimetry studies revealed that acefylline has better affinity towards PDE4A, PDE4D and PDE10A, when compared to dyphylline and proxyphylline. In addition, ex vivo studies corroborated in vitro binding studies that acefylline has much superior sperm motility enhancement property on human ejaculated spermatozoa and mouse testicular spermatozoa compared to dyphylline and proxyphylline.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mutyala Satish
- Macromolecular Structural Biology Lab, Department of Biotechnology, Indian Institute of Technology Hyderabad, Sangareddy, India
| | - Kumari Sandhya
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kulhar Nitin
- Macromolecular Structural Biology Lab, Department of Biotechnology, Indian Institute of Technology Hyderabad, Sangareddy, India
| | - Ninjoor Yashas Kiran
- Division of Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Babu Aleena
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Adiga Satish Kumar
- Division of Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kalthur Guruprasad
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Eerappa Rajakumara
- Macromolecular Structural Biology Lab, Department of Biotechnology, Indian Institute of Technology Hyderabad, Sangareddy, India
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7
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Azimi AS, Soleimani Mehranjani M, Shariatzadeh SMA, Noshad Kamran A, Ghafarizadeh AA. Evaluating the therapeutic effect and toxicity of theophylline in infertile men with asthenoteratozoospermia: a double-blind, randomized clinical trial study. Drug Chem Toxicol 2021; 45:2786-2793. [PMID: 34696674 DOI: 10.1080/01480545.2021.1991755] [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] [Indexed: 10/20/2022]
Abstract
Theophylline as a cyclic adenosine monophosphate (cAMP) phosphodiesterase inhibitor (cAMP-PDEI) elevates cAMP levels. We aimed to evaluate the therapeutic effect and toxicity of theophylline on the sperm parameters, oxidative stress (OS), and inflammation in asthenoteratozoospermic men. Sixty asthenoteratozoospermic patients were divided into groups of placebo and theophylline (200 mg/day). After 3 months of oral treatment, sperm parameters, viability, and DNA fragmentation were analyzed by the CASA system, eosin nigrosin staining, sperm DNA fragmentation kit, respectively. The seminal plasma level of reactive oxygen species (ROS) of neat semen samples, malondialdehyde (MDA), total antioxidant capacity (TAC), tumor necrosis factor alpha (TNF-α), and interleukin-10 (IL-10) was assessed. Data were analyzed statistically using the independent samples t-test and the paired t-test and the means were considered significantly different at p < 0.05. Sperm motility, viability, and the number of sperms with normal morphology and the seminal plasma level of TAC and IL-10 and also sperm DNA fragmentation increased significantly in the theophylline group compared to the placebo. The MDA, TNF-α, and ROS levels decreased significantly in the theophylline group compared to the placebo. Theophylline improved sperm parameters, reduced OS and inflammation, but also created genotoxicity and increased sperm DNA fragmentation. Therefore, to benefit from the desired effects of theophylline and inhibit the toxicity of it in the treatment of men with asthenoteratozoospermia, it is suggested to be used simultaneously with another antioxidant to protect sperm DNA from fragmentation.
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Affiliation(s)
- Atena Sadat Azimi
- Department of Biology, Faculty of Science, Arak University, Arak, Iran
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8
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Agarwal A, Sharma RK, Gupta S, Boitrelle F, Finelli R, Parekh N, Durairajanayagam D, Saleh R, Arafa M, Cho CL, Farkouh A, Rambhatla A, Henkel R, Vogiatzi P, Tadros N, Kavoussi P, Ko E, Leisegang K, Kandil H, Palani A, Salvio G, Mostafa T, Rajmil O, Banihani SA, Schon S, Le TV, Birowo P, Çeker G, Alvarez J, Molina JMC, Ho CCK, Calogero AE, Khalafalla K, Duran MB, Kuroda S, Colpi GM, Zini A, Anagnostopoulou C, Pescatori E, Chung E, Caroppo E, Dimitriadis F, Pinggera GM, Busetto GM, Balercia G, Elbardisi H, Taniguchi H, Park HJ, Maldonado Rosas I, de la Rosette J, Ramsay J, Bowa K, Simopoulou M, Rodriguez MG, Sabbaghian M, Martinez M, Gilani MAS, Al-Marhoon MS, Kosgi R, Cannarella R, Micic S, Fukuhara S, Parekattil S, Jindal S, Abdel-Meguid TAA, Morimoto Y, Shah R. Sperm Vitality and Necrozoospermia: Diagnosis, Management, and Results of a Global Survey of Clinical Practice. World J Mens Health 2021; 40:228-242. [PMID: 34666422 PMCID: PMC8987132 DOI: 10.5534/wjmh.210149] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/02/2021] [Accepted: 08/05/2021] [Indexed: 02/05/2023] Open
Abstract
Sperm vitality testing is a basic semen examination that has been described in the World Health Organization (WHO) Laboratory Manual for the Examination and Processing of Human Semen from its primary edition, 40 years ago. Several methods can be used to test sperm vitality, such as the eosin-nigrosin (E-N) stain or the hypoosmotic swelling (HOS) test. In the 6th (2021) edition of the WHO Laboratory Manual, sperm vitality assessment is mainly recommended if the total motility is less than 40%. Hence, a motile spermatozoon is considered alive, however, in certain conditions an immotile spermatozoon can also be alive. Therefore, the differentiation between asthenozoospermia (pathological decrease in sperm motility) and necrozoospermia (pathological decrease in sperm vitality) is important in directing further investigation and management of infertile patients. The causes leading to necrozoospermia are diverse and can either be local or general, testicular or extra-testicular. The andrological management of necrozoospermia depends on its etiology. However, there is no standardized treatment available presently and practice varies among clinicians. In this study, we report the results of a global survey to understand current practices regarding the physician order of sperm vitality tests as well as the management practices for necrozoospermia. Laboratory and clinical scenarios are presented to guide the reader in the management of necrozoospermia with the overall objective of establishing a benchmark ranging from the diagnosis of necrozoospermia by sperm vitality testing to its clinical management.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Rakesh K Sharma
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Sajal Gupta
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Florence Boitrelle
- Reproductive Biology, Fertility Preservation, Andrology, CECOS, Poissy Hospital, Poissy, France.,Paris Saclay University, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Neel Parekh
- Department of Urology, Cleveland Clinic, Cleveland, OH, USA
| | - Damayanthi Durairajanayagam
- Department of Physiology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| | - Ramadan Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Mohamed Arafa
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Urology, Hamad Medical Corporation, Doha, Qatar.,Department of Urology, Weill Cornell Medical-Qatar Doha, Qatar
| | - Chak Lam Cho
- SH Ho Urology Center, Department of Surgery, Chinese University of Hong Kong, Hong Kong
| | - Ala'a Farkouh
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Amarnath Rambhatla
- Department of Urology, Vattikuti Urology Institute, Henry Ford Health System, Detroit, MI, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, 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.,LogixX Pharma, Theale, Berkshire, UK
| | - Paraskevi Vogiatzi
- Andromed Health & Reproduction, Fertility Diagnostics Laboratory, Maroussi, Greece
| | - Nicholas Tadros
- Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Parviz Kavoussi
- Austin Fertility and Reproductive Medicine/Westlake IVF, Department of Urology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Edmund Ko
- Department of Urology, Loma Linda University Health, Loma Linda, CA, USA
| | - Kristian Leisegang
- Department of Physiology, School of Natural Medicine, Faculty of Community and Health Sciences, University of the Western Cape, Bellville, South Africa
| | | | - Ayad Palani
- Department of Biochemistry, College of Medicine, University of Garmian, Kalar, Iraq
| | - Gianmaria Salvio
- Department of Endocrinology and Metabolic Diseases, Polytechnic University of Marche, Ancona, Italy
| | - Taymour Mostafa
- Department of Andrology, Sexology and STIs, Faculty of Medicina, Cairo University, Cairo, Egypt
| | - Osvaldo Rajmil
- Department of Andrology, Fundacio Puigvert, Barcelona, Spain
| | - Saleem Ali Banihani
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Samantha Schon
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
| | - Tan V Le
- Department of Andrology and Urology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Viet Nam.,Department of Andrology, Binh Dan Hospital, Ho Chi Minh City, Viet Nam
| | - Ponco Birowo
- Department of Urology, Cipto Mangunkusumo General Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Gökhan Çeker
- Department of Urology, Samsun Vezirköprü State Hospital, Samsun, Turkey
| | | | | | - Christopher C K Ho
- Department of Surgery, School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Aldo E Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | | | - Mesut Berkan Duran
- Department of Urology, Samsun Training and Research Hospital, Samsun, Turkey
| | - Shinnosuke Kuroda
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | | | - Armand Zini
- Department of Surgery, McGill University, Montreal, QC, Canada
| | | | - Edoardo Pescatori
- Andrology and Reproductive Medicine Unit, Gynepro Medical, Bologna, Italy
| | - Eric Chung
- Department of Urology, Princess Alexandra Hospital, University of Queensland, Brisbane, QLD, Australia.,AndroUrology Centre, Brisbane, QLD, Australia
| | - Ettore Caroppo
- Reproductive and IVF Unit, Andrology Outpatients Clinic, ASL Bari, Conversano (Ba), Italy
| | - Fotios Dimitriadis
- 1st Urology Department, School of Medicine, Aristotle University, Thessaloniki, Greece
| | | | - Gian Maria Busetto
- Department of Urology and Renal Transplantation, University of Foggia, Ospedali Riuniti of Foggia, Foggia, Italy
| | - Giancarlo Balercia
- Department of Endocrinology and Metabolic Diseases, Polytechnic University of Marche, Ancona, Italy
| | - Haitham Elbardisi
- Department of Urology, Hamad Medical Corporation, Doha, Qatar.,Department of Urology, Weill Cornell Medical-Qatar Doha, Qatar
| | - Hisanori Taniguchi
- Department of Urology and Andrology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Hyun Jun Park
- Department of Urology, Pusan National University School of Medicine, Busan, Korea.,Medical Research Institute of Pusan National University Hospital, Busan, Korea
| | | | - Jean de la Rosette
- Department of Urology, Medipol Mega University Hospital, Istanbul, Turkey
| | | | - Kasonde Bowa
- Department of Urology, Michael Chilufya Sata Copperbelt University School of Medicine, Ndola, Zambia
| | - Mara Simopoulou
- Department of Experimental Physiology, School of Health Sciences, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Marcelo Gabriel Rodriguez
- Departamento Docencia e Investigación, Hospital Militar Campo de Mayo, Universidad Barcelo, Buenos Aires, Argentina
| | - Marjan Sabbaghian
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Marlon Martinez
- Section of Urology, University of Santo Tomas Hospital, Manila, Philippines
| | - Mohamed Ali Sadighi Gilani
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | | | - Raghavender Kosgi
- Department of Urology and Andrology, AIG Hospitals, Gachibowli, Hyderabad, India
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Sava Micic
- Department of Andrology, Uromedica Polyclinic, Belgrade, Serbia
| | - Shinichiro Fukuhara
- Department of Urology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Sijo Parekattil
- Avant Concierge Urology & University of Central Florida, Winter Garden, FL, USA
| | - Sunil Jindal
- Department of Andrology and Reproductive Medicine, Jindal Hospital, Meerut, India
| | - Taha Abo-Almagd Abdel-Meguid
- Department of Urology, Faculty of Medicine, Minia University, Minia, Egypt.,Department of Urology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Rupin Shah
- Division of Andrology, Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
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9
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Chen H, Wang C, Zhou H, Shu J, Gan X, Xu K, Wu Z, Deng X, Huang G, Lin R. Laser-assisted selection of immotile spermatozoa has no effect on obstetric and neonatal outcomes of TESA-ICSI pregnancies. Reprod Biol Endocrinol 2021; 19:159. [PMID: 34641894 PMCID: PMC8507098 DOI: 10.1186/s12958-021-00835-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 09/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Azoospermic patients have benefited from both epididymal and testicular spermatozoa intracytoplasmic sperm injection (ICSI) treatment and lasers have been used to identify viable, immotile spermatozoa before the procedure. There are limited studies on the safety of laser-assisted selection of immotile spermatozoa. The aim of this study was to investigate the impact of laser-assisted selection of immotile spermatozoa on the obstetric and neonatal outcomes after ICSI. METHODS A retrospective comparative study was conducted on outcomes of ICSI cycles with testicular spermatozoa from June 2014 to June 2018. Of 132 cycles, 33 were allocated to the test group and oocytes were injected with immotile spermatozoa selected by laser, 99 cycles were allocated as control group. RESULTS Compared with the control group, no significant differences were found in the pregnancy, implantation, miscarriage and live birth rates in the test group in either fresh or frozen transfer cycles. The cumulative live birth rate in the test group was 69.70%, which was slightly higher than in the control group (60.61%), but this was not statistically different. There were no differences in the average gestational age, premature birth rate, neonatal birth weight, and the malformation rate between the test and control groups (P > 0.05). In addition, the obstetric outcome between the two groups were not different (P > 0.05). CONCLUSIONS No negative effect on perinatal and neonatal outcomes was seen by using laser-assisted selection of immotile spermatozoa for TESA-ICSI. This study endorses the use of laser-assisted selection of viable spermatozoa for ICSI cycles.
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Affiliation(s)
- Huanhua Chen
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Caizhu Wang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Hong Zhou
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Jinhui Shu
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Xianyou Gan
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Kongrong Xu
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Zhulian Wu
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Xihe Deng
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Guiting Huang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China
| | - Ruoyun Lin
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003, China.
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10
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Ambar RF, Gava MM, Ghirelli-Filho M, Yoshida IH, De Paula TS, Glina S. Tissue and sperm handling before assisted reproductive technology (ART): A systematic review. Arab J Urol 2021; 19:238-246. [PMID: 34552775 PMCID: PMC8451624 DOI: 10.1080/2090598x.2021.1954801] [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] [Indexed: 10/27/2022] Open
Abstract
Objective : To explore the medical literature on techniques of tissue and sperm handling after surgical retrieval for intracytoplasmic sperm injection (ICSI). Methods : A search was performed in PubMed and Google Scholar databases, according to a modified Preferred Reporting Items for Systemic Reviews and Meta-Analyses (PRISMA) guideline, considering the studies investigating tissue handling and sperm selection techniques for ICSI. Results : Overall, 42 articles were included in this study, investigating sample handling, methods for sperm selection, and the use of chemical compounds to improve sperm motility and fertilisation rates. Conclusion : The ideal sperm handling method should provide a high sperm count, high vitality and appropriate sperm function, without side-effects. In this review the most common and useful techniques are described and the best combination strategies discussed in clinical scenarios.
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Affiliation(s)
- Rafael Favero Ambar
- Urology Department at Centro Universitario Em Saude Do ABC - FMABC, Santo André, Brazil.,Ideia Fertil Institute of Human Reproduction, Santo André, Brazil
| | - Marcello M Gava
- Urology Department at Centro Universitario Em Saude Do ABC - FMABC, Santo André, Brazil.,Ideia Fertil Institute of Human Reproduction, Santo André, Brazil
| | - Milton Ghirelli-Filho
- Urology Department at Centro Universitario Em Saude Do ABC - FMABC, Santo André, Brazil.,Ideia Fertil Institute of Human Reproduction, Santo André, Brazil
| | - Ivan H Yoshida
- Ideia Fertil Institute of Human Reproduction, Santo André, Brazil
| | | | - Sidney Glina
- Urology Department at Centro Universitario Em Saude Do ABC - FMABC, Santo André, Brazil
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11
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Aydos K, Aydos OS. Sperm Selection Procedures for Optimizing the Outcome of ICSI in Patients with NOA. J Clin Med 2021; 10:jcm10122687. [PMID: 34207121 PMCID: PMC8234729 DOI: 10.3390/jcm10122687] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/13/2021] [Accepted: 06/16/2021] [Indexed: 12/19/2022] Open
Abstract
Retrieving spermatozoa from the testicles has been a great hope for patients with non-obstructive azoospermia (NOA), but relevant methods have not yet been developed to the level necessary to provide resolutions for all cases of NOA. Although performing testicular sperm extraction under microscopic magnification has increased sperm retrieval rates, in vitro selection and processing of quality sperm plays an essential role in the success of in vitro fertilization. Moreover, sperm cryopreservation is widely used in assisted reproductive technologies, whether for therapeutic purposes or for future fertility preservation. In recent years, there have been new developments using advanced technologies to freeze and preserve even very small numbers of sperm for which conventional techniques are inadequate. The present review provides an up-to-date summary of current strategies for maximizing sperm recovery from surgically obtained testicular samples and, as an extension, optimization of in vitro sperm processing techniques in the management of NOA.
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Affiliation(s)
- Kaan Aydos
- Department of Urology, Reproductive Health Research Center, School of Medicine, University of Ankara, 06230 Ankara, Turkey
- Correspondence: ; Tel.: +90-533-748-8995
| | - Oya Sena Aydos
- Department of Medical Biology, School of Medicine, University of Ankara, 06230 Ankara, Turkey;
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12
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Salama N. Letter to Editor: We Need Standardized Guidelines for Laboratory Tissue Processing After Microsurgical Testicular Sperm Extraction. Reprod Sci 2021; 28:2071-2075. [PMID: 33871827 DOI: 10.1007/s43032-021-00585-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 04/15/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Nader Salama
- Department of Urology, Alexandria Faculty of Medicine, Alexandria, Egypt.
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13
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Ibis E, Hayme S, Baysal E, Gul N, Ozkavukcu S. Efficacy and safety of papaverine as an in vitro motility enhancer on human spermatozoa. J Assist Reprod Genet 2021; 38:1523-1537. [PMID: 33772411 DOI: 10.1007/s10815-021-02160-x] [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: 11/24/2020] [Accepted: 03/18/2021] [Indexed: 12/26/2022] Open
Abstract
PURPOSE The aim of this study was to examine the ability and safety of papaverine supplementation for in vitro sperm motility enhancement. In addition, sperm motility enhancement of papaverine was compared to pentoxifylline and theophylline. The post-thaw spermatozoa were used as an asthenozoospermia model. METHODS Post thaw sperm suspensions were divided into two groups: papaverine (100 μmol/L) and control, and each was investigated in two subgroups of 30- and 60-min exposure times. Detailed motility parameters were detected using a computerized sperm motility analyzer. Acrosomal status, viability, apoptosis, and DNA fragmentation were evaluated by flow cytometry. Furthermore, the motility-enhancing capacity of papaverine, pentoxifylline, and theophylline was compared. RESULTS Cryopreservation impaired sperm parameters dramatically but no significant changes occurred in acrosomal status and apoptosis. Supplementation of papaverine enhanced motility parameters consistently at all exposure intervals, significantly. However, viability was lower at the 60th minute compared to the 30th minute (p=0.019). Papaverine did not alter any acrosomal or apoptotic markers at any time points. All of the compounds compared in this study increased the motility parameters, where theophylline supplementation provided significantly better improvement in total motility compared to papaverine and pentoxifylline. CONCLUSION Our results suggest that in vitro papaverine treatment for 30 min adequately improves motility of post-thaw sperm, without leading to acrosome reaction, DNA damage, and viability loss. Theophylline's potency on increasing the ratio of total motile spermatozoa was found significantly superior than the two tested compounds. Prospective clinical studies with embryo production, pregnancy, and live birth data should be undertaken.
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Affiliation(s)
- Ebru Ibis
- Center for Assisted Reproduction, Department of Obstetrics and Gynecology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Serhat Hayme
- Department of Biostatistics, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Ekin Baysal
- Department of Histology and Embryology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Nursel Gul
- Department of Biology, Ankara University Graduate School of Natural and Applied Sciences, Ankara, Turkey
| | - Sinan Ozkavukcu
- Center for Assisted Reproduction, Department of Obstetrics and Gynecology, Ankara University Faculty of Medicine, Ankara, Turkey. .,Department of Histology and Embryology, Ankara University Faculty of Medicine, Ankara, Turkey.
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14
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Holubcová Z, Otevřel P, Koudelka M, Kloudová S. Live birth achieved despite the absence of ejaculated spermatozoa and mature oocytes retrieved: a case report. J Assist Reprod Genet 2021; 38:925-929. [PMID: 33474690 PMCID: PMC8079486 DOI: 10.1007/s10815-021-02070-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/10/2021] [Indexed: 11/30/2022] Open
Abstract
The most common reason for in vitro fertilization (IVF) cycle cancelation is a lack of quality gametes available for intracytoplasmic sperm injection (ICSI). Here we present the successful fertility treatment of the couple affected by obstructive azoospermia combined with suboptimal response to controlled ovarian stimulation. Since the conventional approach appeared ineffective to overcome both partnersˈ specific problems, the targeted interventions, namely, (1) pharmacological enhancement of sperm motility and (2) polarized light microscopy (PLM)-guided optimization of ICSI time, were applied to rescue the cycle with only immature oocytes and immotile testicular sperm retrieved. The treatment with theophylline aided the selection of viable spermatozoa derived from cryopreserved testicular tissue. When the traditional stimulation protocol failed to produce mature eggs, non-invasive spindle imaging was employed to adjust the sperm injection time to the maturational stage of oocytes extruding a polar body in vitro. The fertilization of 12 late-maturing oocytes yielded 5 zygotes, which all developed into blastocysts. One embryo was transferred into the uterus on day 5 post-fertilization, and another 3 good quality blastocysts were vitrified for later use. The pregnancy resulted in a full-term delivery of a healthy child. This case demonstrates that the individualization beyond the standard IVF protocols should be considered to maximize the chance of poor-prognosis patients to achieve pregnancy with their own gametes.
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Affiliation(s)
- Zuzana Holubcová
- Reprofit International, Clinic of Reproductive Medicine, Hlinky 122, 60300, Brno, Czech Republic. .,Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Masaryk University Campus - building A1, Kamenice 3, 625 00, Brno, Czech Republic.
| | - Pavel Otevřel
- Reprofit International, Clinic of Reproductive Medicine, Hlinky 122, 60300, Brno, Czech Republic
| | - Marek Koudelka
- Reprofit International, Clinic of Reproductive Medicine, Hlinky 122, 60300, Brno, Czech Republic
| | - Soňa Kloudová
- Reprofit International, Clinic of Reproductive Medicine, Hlinky 122, 60300, Brno, Czech Republic
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15
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Haddad M, Stewart J, Xie P, Cheung S, Trout A, Keating D, Parrella A, Lawrence S, Rosenwaks Z, Palermo GD. Thoughts on the popularity of ICSI. J Assist Reprod Genet 2020; 38:101-123. [PMID: 33155089 PMCID: PMC7823003 DOI: 10.1007/s10815-020-01987-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/18/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose Intracytoplasmic sperm injection (ICSI) is the most widely utilized assisted reproductive technique (ART) worldwide. In this feature, we review the early assisted fertilization attempts that eventually led to the development of ICSI, and discuss its current utilization in cases of male and non-male factor infertility. Methods We researched the literature related to the development, indications, and current use of ICSI, such as sperm structural abnormalities, male genetic indications, surgically retrieved sperm, high sperm chromatin fragmentation, oocyte dysmorphism, and preimplantation genetic testing (PGT). We also describe the potential future applications of ICSI. Results This review summarizes the early micromanipulation techniques that led to the inception of ICSI. We also explore its current indications, including non-male factor infertility, where its use is more controversial. Finally, we consider the benefits of future advancements in reproductive biology that may incorporate ICSI, such as in vitro spermatogenesis, neogametogenesis, and heritable genome editing. Conclusion The versatility, consistency, and reliability of ICSI have made it the most prevalently utilized ART procedure worldwide.
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Affiliation(s)
- Mounia Haddad
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Joshua Stewart
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Philip Xie
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Stephanie Cheung
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Aysha Trout
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Derek Keating
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Alessandra Parrella
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Sherina Lawrence
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Zev Rosenwaks
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Gianpiero D Palermo
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medicine, New York, NY, USA.
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16
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Male Factors: the Role of Sperm in Preimplantation Embryo Quality. Reprod Sci 2020; 28:1788-1811. [DOI: 10.1007/s43032-020-00334-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/25/2020] [Indexed: 12/19/2022]
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17
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Sharpe A, Bhandari H, Miller D. Is there a role for phosphodiesterase inhibitors in the treatment of male subfertility? HUM FERTIL 2020; 25:13-23. [PMID: 32666851 DOI: 10.1080/14647273.2020.1793420] [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] [Indexed: 10/23/2022]
Abstract
Intracytoplasmic sperm injection (ICSI) is frequently used to overcome severe deficits in semen quality. Concerns, however, are arising over its increasing use for non-male factor infertility. Moreover, increased risk of cardiovascular disease, congenital abnormalities, aneuploidies and childhood cancers have all been reported in the literature in relation to ICSI and it is possible that the quality of sperm chosen for injection may be an important factor in these unwanted outcomes. Given the wider adoption of ICSI to treat beyond the requirements of male infertility alone, research focussed on alternative methods to diagnose and treat the infertile couple is gaining increasing attention. This review focuses on the information available to date on the use of non-selective phosphodiesterase inhibitors (PDEI), specifically pentoxifylline (PF), caffeine (CF) and theophylline (TP) to stimulate sperm motility, thereby potentially reducing the need for ICSI in certain patient groups who may benefit from either expectant management or from a less stressful, minimally invasive and inexpensive treatment such as intrauterine insemination (IUI). The review focuses firstly on the mechanism of action of PDEI followed by treatment effects on sperm parameters such as motility and hyperactivated motility and sperm DNA integrity. Specific clinical implications are discussed that outline the potential role of PDEI in clinical practice and highlights areas in need of further research.
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Affiliation(s)
- Abigail Sharpe
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | | | - David Miller
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
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18
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Joskova M, Mokry J, Franova S. Respiratory Cilia as a Therapeutic Target of Phosphodiesterase Inhibitors. Front Pharmacol 2020; 11:609. [PMID: 32435198 PMCID: PMC7218135 DOI: 10.3389/fphar.2020.00609] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/20/2020] [Indexed: 11/30/2022] Open
Abstract
Mucociliary clearance is an essential airway defense mechanism dependent predominantly on the proper ciliary function and mucus rheology. The crucial role of cilia is evident in `a variety of respiratory diseases, as the ciliary dysfunction is associated with a progressive decline in lung function over time. The activity of cilia is under supervision of multiple physiological regulators, including second messengers. Their role is to enable a movement in coordinated metachronal waves at certain beat frequency. Ciliary function can be modulated by various stimuli, including agents from the group of beta2 agonists, cholinergic drugs, and adenosine triphosphate (ATP). They trigger cilia to move faster in response to elevated cytoplasmic Ca2+ originated from intracellular sources or replenished from extracellular space. Well-known cilia-stimulatory effect of Ca2+ ions can be abolished or even reversed by modulating the phosphodiesterase (PDE)-mediated breakdown of cyclic adenosine monophosphate (cAMP) since the overall change in ciliary beating has been dependent on the balance between Ca2+ ions and cAMP. Moreover, in chronic respiratory diseases, high ATP levels may contribute to cAMP hydrolysis and thus to a decrease in the ciliary beat frequency (CBF). The role of PDE inhibitors in airway cilia-driven transport may help in prevention of progressive loss of pulmonary function often observed despite current therapy. Furthermore, administration of selective PDE inhibitors by inhalation lowers the risk of their systemic effects. Based on this review we may conclude that selective (PDE1, PDE4) or dual PDE inhibitors (PDE3/4) increase the intracellular level of cyclic nucleotides in airway epithelial cells and thus may be an important target in the development of new inhaled mucokinetic agents. Further research is required to provide evidence of their effectiveness and feasibility regarding their cilia-modulating properties.
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Affiliation(s)
- Marta Joskova
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Juraj Mokry
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Sona Franova
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
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19
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Marzano G, Chiriacò MS, Primiceri E, Dell’Aquila ME, Ramalho-Santos J, Zara V, Ferramosca A, Maruccio G. Sperm selection in assisted reproduction: A review of established methods and cutting-edge possibilities. Biotechnol Adv 2020; 40:107498. [DOI: 10.1016/j.biotechadv.2019.107498] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 11/26/2019] [Accepted: 12/06/2019] [Indexed: 12/31/2022]
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20
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Oseguera-López I, Ruiz-Díaz S, Ramos-Ibeas P, Pérez-Cerezales S. Novel Techniques of Sperm Selection for Improving IVF and ICSI Outcomes. Front Cell Dev Biol 2019; 7:298. [PMID: 31850340 PMCID: PMC6896825 DOI: 10.3389/fcell.2019.00298] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 11/07/2019] [Indexed: 12/12/2022] Open
Abstract
Almost 50% of the infertility cases are due to male factors. Assisted reproductive technologies (ARTs) allow to overcome the incapacity of these patients' spermatozoa to fertilize the oocyte and produce a viable and healthy offspring, but the efficiency of the different techniques has still the potential to improve. According to the latest reports of the European Society of Human Reproduction and Embryology (ESHRE) and the Centers for Disease Control and Prevention of the United States (CDC), the percentages of deliveries per ART cycle in 2014 and 2016 were 21 and 22%, respectively. Among the reasons for this relatively low efficiency, the quality of the spermatozoa has been pointed out as critical, and the presence of high percentages of DNA-damaged spermatozoa in patients' ejaculates is possibly one of the main factors reducing the ARTs outcomes. Thus, one of the main challenges in reproductive medicine is to ensure the highest quality of the spermatozoa used in ARTs, and specifically, in terms of genetic integrity. The latest techniques for the preparation and selection of human spermatozoa are herein discussed focusing on those proven to improve one or several of the following parameters: sperm genetic integrity, fertilization capacity, embryo production, and in vitro survival, as well as pregnancy and delivery rates following in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). In addition, we discuss the potential of techniques developed in non-human mammals that could be further transferred to the clinic.
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Affiliation(s)
| | - Sara Ruiz-Díaz
- Mistral Fertility Clinics S.L., Clínica Tambre, Madrid, Spain
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - Priscila Ramos-Ibeas
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
| | - Serafín Pérez-Cerezales
- Department of Animal Reproduction, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Madrid, Spain
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21
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Sandi-Monroy NL, Musanovic S, Zhu D, Szabó Z, Vogl A, Reeka N, Eibner K, Bundschu K, Gagsteiger F. Use of dimethylxanthine theophylline (SpermMobil ®) does not affect clinical, obstetric or perinatal outcomes. Arch Gynecol Obstet 2019; 300:1435-1443. [PMID: 31599349 DOI: 10.1007/s00404-019-05312-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE To evaluate whether the use of a commercially available dimethylxanthine theophylline compound (SpermMobil®) for artificial sperm activation would negatively affect clinical, obstetric and perinatal outcomes. METHODS Artificial sperm activation (ASA) was used when sperm motility after preparation was low or absent in our clinical standard procedure practice. ICSI cycles using either testicular or ejaculated sperm with concentration smaller than 5 million/ml from August 2012 to January 2018 were retrospectively analyzed (n = 815) and divided into two groups, a control group where no ASA was needed and the SpermMobil® group with ASA. RESULTS The fertilization rate was significantly higher in the control group, but pregnancy and implantation rates did not differ significantly. Number of embryos transferred, good quality embryos for ET and number of frozen blastocysts were similar in both groups. Clinical pregnancy loss was significantly reduced in the SpermMobil® group, which was reflected in slightly better live birth rates than in the control group. Furthermore, there were no significant differences regarding gestational age, weight, height and z score for singletons or multiples in the SpermMobil® (n = 27 and n = 10) or control (n = 144 and n = 67) groups. There were no reports of malformation, perinatal mortality or intensive therapy in the SpermMobil® group, whereas in the control group, 12 babies needed intensive care, besides one intrauterine death. CONCLUSION The use of SpermMobil® in samples with mostly immotile sperm not only facilitates the embryologists work but also optimizes the treatment outcomes for those patients with a bad prognosis. This is the first report of obstetric and perinatal outcomes after applying a theophylline derivative in human clinical use.
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Affiliation(s)
- Nathallie Louise Sandi-Monroy
- IVF Laboratory, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany. .,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany.
| | - Spomenka Musanovic
- IVF Laboratory, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
| | - Dan Zhu
- IVF Laboratory, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
| | - Zsuzsanna Szabó
- IVF Laboratory, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
| | - Alexander Vogl
- IVF Laboratory, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
| | - Natalie Reeka
- Medical Department, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
| | - Kerstin Eibner
- Medical Department, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
| | - Karin Bundschu
- Medical Department, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,Universitätsklinikum Ulm, Frauenheilkunde und Geburtshilfe, Prittwitzstrasse 43, 89075, Ulm, Germany
| | - Friedrich Gagsteiger
- Medical Department, Kinderwunsch MVZ Ulm GmbH, Einsteinstrasse 59, 89077, Ulm, Germany.,NextClinics International GmbH, NextClinics, Josef-Mörtl-Straße 23, 86482, Aystetten, Germany
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Chen H, Zhou H, Shu J, Gan X, Wang C, Lin R. A point of confusion for embryologists in the identification of viable spermatozoa by the eosin-nigrosin test. Clin Exp Reprod Med 2019; 46:36-40. [PMID: 30827076 PMCID: PMC6436465 DOI: 10.5653/cerm.2019.46.1.36] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 11/16/2018] [Indexed: 11/25/2022] Open
Abstract
A viable spermatozoon is a prerequisite for fertilization in intracytoplasmic sperm injection (ICSI). Thus, it is crucial to select viable but immotile spermatozoa on the day of ICSI. We report conflicting results in the identification of viable but immotile spermatozoa between the eosin-nigrosin staining and the laser test, which resulted in confusion for embryologists during assisted reproductive technology (ART). Three patients’ semen samples that showed no motile spermatozoa are described in this report. To identify viable spermatozoa, we used both the eosin-nigrosin test and the laser test for each sample, and repeated the semen analysis twice in each patient. Viable but immotile spermatozoa selected by the laser test were used for ICSI. Viable spermatozoa were detected by both the eosin-nigrosin and laser tests in two patients (case 1, 95.00% vs. 24.21% and 92.68% vs. 22.22%; case 2, 41.18% vs. 23.48% and 39.81% vs. 22.52%), indicating consistent results between the two methods. In the third patient, the eosin-nigrosin test yielded viability rates of 20.75% and 19.14%, while the result of the laser test was 0%. Thus, testicular aspiration was performed to collect viable sperm from this patient. Normal fertilization was achieved after the injection of viable but immotile spermatozoa selected from these patients by the laser test, resulting in the birth of two healthy babies. Our study documents a case where the eosin-nigrosin test showed a limitation in identifying viable but immotile spermatozoa for ART, while the laser test may overcome this limitation. Larger samples may be required to corroborate the clinical value of the laser test.
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Affiliation(s)
- Huanhua Chen
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Hong Zhou
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jinhui Shu
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Xianyou Gan
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Caizhu Wang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Ruoyun Lin
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
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Yu Z, Wei Z, Yang J, Wang T, Jiang H, Li H, Tang Z, Wang S, Liu J. Comparison of intracytoplasmic sperm injection outcome with fresh versus frozen-thawed testicular sperm in men with nonobstructive azoospermia: a systematic review and meta-analysis. J Assist Reprod Genet 2018; 35:1247-1257. [PMID: 29785532 PMCID: PMC6063825 DOI: 10.1007/s10815-018-1206-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 05/09/2018] [Indexed: 01/29/2023] Open
Abstract
PURPOSE The purpose of the study is to explore testicular sperm cryopreservation in patients with nonobstructive azoospermia (NOA) whether affect the outcome of subsequent intracytoplasmic sperm injection (ICSI). METHODS A systematic review and meta-analysis was conducted by searching the MEDLINE and EMBASE databases for relevant published studies in English language (1997-2017). Studies were eligible if they included the comparison of using fresh and frozen-thawed testicular sperm followed by ICSI. Two reviewers independently performed data extraction, quality assessment and assessed the risk of bias. The overall summary risk estimated the number of events. A meta-analysis was conducted using a random effects or fixed effects model analysis according to the test of heterogeneity. RESULTS A total of 17 studies with 1,261 ICSI cycles were identified. Analysis of the present data showed no difference in the fertilization outcome when comparing fresh versus frozen-thawed spermatozoa (RR = 1.02, 95% CI 0.86-1.09). Similarly, no difference in CR (RR = 1.01, 95% CI 0.96-1.05), good embryo rate (RR = 1.01, 95% CI 0.95-1.09), and IR (RR = 0.93, 95% CI 0.66-1.30) was observed if the spermatozoa was fresh or frozen-thawed. Finally, no difference in CPR or LBR was noted when using fresh or frozen-thawed cycles were analyzed separately (RR = 1.03, 95% CI 0.86-1.24; RR 1.11, 95% CI 0.88-1.41, respectively). CONCLUSIONS In men with NOA, the ICSI outcome is not affected by whether the retrieved testicular sperm is fresh or frozen. Sperm cryopreservation ought to be considered in every surgical sperm retrieval case, which remain feasible even in patients with few testicular sperm retrieved.
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Affiliation(s)
- Zhe Yu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhewen Wei
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Tao Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongyang Jiang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Gu YF, Zhou QW, Zhang SP, Lu CF, Gong F, Shi Y, Lu GX, Lin G. The clinical and neonatal outcomes after stimulation of immotile spermatozoa using SperMagic medium. Andrologia 2018; 50:e13056. [PMID: 29862537 DOI: 10.1111/and.13056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 04/23/2018] [Indexed: 11/29/2022] Open
Abstract
To evaluate the efficiency and safety of SperMagic medium on stimulating the immotile spermatozoa in testicular sperm extraction (TESE) and absolute asthenozoospermia, 96 patients with TESE and 106 patients with absolute asthenozoospermia were enrolled in this study. The motile spermatozoa were detected in 47 TESE patients and 68 absolute asthenozoospermia and these patients were assigned to control group. The immotile spermatozoa in 49 TESE patients and 34 absolute asthenozoospermia were stimulated with SperMagic medium. Patients were treated by standard intracytoplasmic sperm injection (ICSI). There were no significant differences in fertilisation, cleavage, implantation, pregnancy, live birth and neonatal outcomes. SperMagic medium does not increase incidence of adverse neonatal outcomes and is a reliable tool for selection of viable spermatozoa in ICSI.
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Affiliation(s)
- Yi-Fan Gu
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-XIANGYA, Changsha, China
| | - Qin-Wei Zhou
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China
| | - Shuo-Ping Zhang
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-XIANGYA, Changsha, China
| | - Chang-Fu Lu
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-XIANGYA, Changsha, China
| | - Fei Gong
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-XIANGYA, Changsha, China
| | - Yun Shi
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China
| | - Guang-Xiu Lu
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-XIANGYA, Changsha, China.,National Engineering and Research Center of Human Stem Cell, Changsha, China.,Key Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, Changsha, China
| | - Ge Lin
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Reproductive & Genetic Hospital of CITIC-XIANGYA, Changsha, China.,National Engineering and Research Center of Human Stem Cell, Changsha, China.,Key Laboratory of Reproductive and Stem Cell Engineering, National Health and Family Planning Commission, Changsha, China
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25
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Analysis of the impact of cryopreservation and theophylline on motility of sperm. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2018. [DOI: 10.1016/j.mefs.2017.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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26
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Verheyen G, Popovic-Todorovic B, Tournaye H. Processing and selection of surgically-retrieved sperm for ICSI: a review. Basic Clin Androl 2017; 27:6. [PMID: 28331619 PMCID: PMC5360083 DOI: 10.1186/s12610-017-0050-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 03/01/2017] [Indexed: 12/30/2022] Open
Abstract
Although the technique of intracytoplasmic sperm injection (ICSI) has been a revolution in the alleviation of male infertility, the use of testicular sperm for ICSI was a formerly unseen breakthrough in the treatment of the azoospermic man with primary testicular failure. At the clinical level, different procedures of testicular sperm retrieval (conventional TESE, micro-TESE, FNA/TESA, MESA, PESA) are being performed, the choice is mainly based on the cause of azoospermia (obstructive versus non-obstructive) and the surgeon's skills. At the level of the IVF laboratory, mechanical procedures to harvest the sperm from the tissue may be combined with enzymatic treatment in order to increase the sperm recovery rates. A number of techniques have been developed for viable sperm selection in males with only immotile testicular sperm available. However, large, well-designed studies on the benefit and safety of one over the other technique are lacking. Despite all the available methods and combinations of laboratory procedures which have a common goal to maximize sperm recovery from testicular samples, a large proportion of NOA patients fail to father a genetically own child. Advanced technology application may improve recovery rates by detection of the testicular foci with active spermatogenesis and/or identification of the rare individual sperm in the testicular suspensions. On the other hand, in vitro spermatogenesis or sperm production from embryonic stem cells or induced pluripotent stem cells might be future options. The present review summarizes the available strategies which aim to maximize sperm recovery from surgically retrieved samples.
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Affiliation(s)
- Greta Verheyen
- Centre for Reproductive Medicine, UZ Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium
| | | | - Herman Tournaye
- Centre for Reproductive Medicine, UZ Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium
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27
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Simopoulou M, Gkoles L, Bakas P, Giannelou P, Kalampokas T, Pantos K, Koutsilieris M. Improving ICSI: A review from the spermatozoon perspective. Syst Biol Reprod Med 2016; 62:359-371. [PMID: 27646677 DOI: 10.1080/19396368.2016.1229365] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Intracytoplasmic sperm injection (ICSI) is the most frequently applied method for fertilization making the process of identifying the perfect spermatozoon fundamental. Herein we offer a critical and thorough presentation on the techniques reported regarding (i) handling and preparing semen samples, (ii) identifying and 'fishing' spermatozoa, and (iii) improving key factors, such as motility for a successful ICSI practice. These approaches are suggested to make the process easier and more effective especially in atypical and challenging circumstances. Furthermore, we present an epigrammatic opinion-where appropriate-based upon our collective experience. Techniques such as intracytoplasmic morphologically selected sperm injection, hyaluronic binding, polarized light microscopy, and annexin V agent identification for comparing sperm cells and their chromatin integrity are analyzed. Moreover, for the demanding cases of total sperm immotility the use of the hypoosmotic swelling test, methylxanthines, as well as the option of laser assisted immotile sperm selection are discussed. Finally, we refer to the employment of myoinositol as a way to bioreactively improve ICSI outcome for oligoasthenoteratozoospermic men. The diversity and the constant development of novel promising techniques to improve ICSI from the spermatozoon perspective, is certainly worth pursuing. The majority of the techniques discussed are still a long way from being established in routine practices of the standard IVF laboratory. In most cases an experienced embryologist could yield the same results. Although some of the techniques show great benefits, there is a need for large scale multicenter randomized control studies to be conducted in order to specify their importance before suggesting horizontal application. Taking into consideration the a priori invasive nature of ICSI, when clinical application becomes a possibility we need to proceed with caution and ensure that in the pursuit for innovation we are not sacrificing safety and the balance of the physiological and biological pathways of the spermatozoon's dynamic. ABBREVIATIONS ICSI: intracytoplasmic sperm injection; IVF: in vitro fertilization; PGD: reimplantation genetic diagnosis; IVM: in vitro maturation; HCV/HIV: hepatitis C virus/human immunodeficiency virus; IMSI: intracytoplasmic morphologically selected sperm injection; DGC: density gradient centrifugations; S-U: swim-up; ART: assisted reproduction technology; IUI: intrauterine insemination; PVP: polyvinylpyrrolidone; HA: hyaluronic acid; MSOME: motile sperm organelle morphology examination; ZP: zona pellucida; MACS: magnetic activation cell sorting; HOST: hypo-osmotic swelling test; TESE: testicular sperm extraction; MMP: mitochondrial membrane potential; OAT: oligoasthenoteratozoospermic.
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Affiliation(s)
- Mara Simopoulou
- a Department of Physiology, Medical School, National and Kapodistrian University of Athens , Athens , Greece.,b Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology , Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens , Athens , Greece
| | - Laertis Gkoles
- b Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology , Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens , Athens , Greece
| | - Panagiotis Bakas
- b Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology , Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens , Athens , Greece
| | - Polina Giannelou
- b Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology , Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens , Athens , Greece
| | - Theodoros Kalampokas
- b Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology , Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens , Athens , Greece
| | | | - Michael Koutsilieris
- a Department of Physiology, Medical School, National and Kapodistrian University of Athens , Athens , Greece
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28
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Goupil S, Maréchal L, El Hajj H, Tremblay MÈ, Richard FJ, Leclerc P. Identification and Localization of the Cyclic Nucleotide Phosphodiesterase 10A in Bovine Testis and Mature Spermatozoa. PLoS One 2016; 11:e0161035. [PMID: 27548062 PMCID: PMC4993467 DOI: 10.1371/journal.pone.0161035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/28/2016] [Indexed: 11/19/2022] Open
Abstract
In mammals, adenosine 3’, 5’-cyclic monophosphate (cAMP) is known to play highly important roles in sperm motility and acrosomal exocytosis. It is known to act through protein phosphorylation via PRKA and through the activation of guanine nucleotide exchange factors like EPAC. Sperm intracellular cAMP levels depend on the activity of adenylyl cyclases, mostly SACY, though transmembrane-containing adenylyl cyclases are also present, and on the activity of cyclic nucleotide phosphodiesterases (PDE) whose role is to degrade cAMP into 5’-AMP. The PDE superfamily is subdivided into 11 families (PDE1 to 11), which act on either cAMP or cGMP, or on both cAMP and cGMP although with different enzymatic properties. PDE10, which is more effective on cAMP than cGMP, has been known for almost 15 years and is mostly studied in the brain where it is associated with neurological disorders. Although a high level of PDE10A gene expression is observed in the testis, information on the identity of the isoforms or on the cell type that express the PDE10 protein is lacking. The objective of this study was to identify the PDE10A isoforms expressed in the testis and germ cells, and to determine the presence and localization of PDE10A in mature spermatozoa. As a sub-objective, since PDE10A transcript variants were reported strictly through analyses of bovine genomic sequence, we also wanted to determine the nucleotide and amino acid sequences by experimental evidence. Using RT-PCR, 5’- and 3’-RACE approaches we clearly show that PDE10A transcript variants X3 and X5 are expressed in bovine testis as well as in primary spermatocytes and spermatids. We also reveal using a combination of immunological techniques and proteomics analytical tools that the PDE10A isoform X4 is present in the area of the developing acrosome of spermatids and of the acrosome of mature spermatozoa.
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Affiliation(s)
- Serge Goupil
- Département d’obstétrique, gynécologie et reproduction, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle (CRDSI), Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec-Université Laval, G1V 4G2, Québec, QC, Canada
| | - Loïze Maréchal
- Département d’obstétrique, gynécologie et reproduction, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle (CRDSI), Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec-Université Laval, G1V 4G2, Québec, QC, Canada
| | - Hassan El Hajj
- Département de médecine moléculaire, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec-Université Laval, G1V 4G2, Québec, QC, Canada
| | - Marie-Ève Tremblay
- Département de médecine moléculaire, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec-Université Laval, G1V 4G2, Québec, QC, Canada
| | - François J. Richard
- Département des sciences animales, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle (CRDSI), Université Laval, Québec, Canada
| | - Pierre Leclerc
- Département d’obstétrique, gynécologie et reproduction, Université Laval, et Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Centre de recherche en reproduction, développement et santé intergénérationnelle (CRDSI), Université Laval, Québec, Canada
- Centre de recherche du CHU de Québec-Université Laval, G1V 4G2, Québec, QC, Canada
- * E-mail:
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29
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Tosti E, Ménézo Y. Gamete activation: basic knowledge and clinical applications. Hum Reprod Update 2016; 22:420-39. [PMID: 27278231 PMCID: PMC4917743 DOI: 10.1093/humupd/dmw014] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 04/01/2016] [Indexed: 01/07/2023] Open
Abstract
Background The first clues to the process of gamete activation date back to nearly 60 years ago. The mutual activation of gametes is a crucial event during fertilization. In the testis and ovaries, spermatozoa and oocytes are in a state of meiotic and metabolic quiescence and require reciprocal signals in order to undergo functional changes that lead to competence for fertilization. First, the oocyte activates sperm by triggering motility, chemoattraction, binding and the acrosome reaction, culminating with the fusion of the two plasma membranes. At the end of this cascade of events, collectively known as sperm capacitation, sperm-induced oocyte activation occurs, generating electrical, morphological and metabolic modifications in the oocyte. Objective and rationale The aim of this review is to provide the current state of knowledge regarding the entire process of gamete activation in selected specific animal models that have contributed to our understanding of fertilization in mammals, including humans. Here we describe in detail the reciprocal induction of the two activation processes, the molecules involved and the mechanisms of cell interaction and signal transduction that ultimately result in successful embryo development and creation of a new individual. Search methods We carried out a literature survey with no restrictions on publication date (from the early 1950s to March 2016) using PubMed/Medline, Google Scholar and Web of Knowledge by utilizing common keywords applied in the field of fertilization and embryo development. We also screened the complete list of references published in the most recent research articles and relevant reviews published in English (both animal and human studies) on the topics investigated. Outcomes Literature on the principal animal models demonstrates that gamete activation is a pre-requisite for successful fertilization, and is a process common to all species studied to date. We provide a detailed description of the dramatic changes in gamete morphology and behavior, the regulatory molecules triggering gamete activation and the intracellular ions and second messengers involved in active metabolic pathways in different species. Recent scientific advances suggest that artificial gamete activation may represent a novel technique to improve human IVF outcomes, but this approach requires caution. Wider implications Although controversial, manipulation of gamete activation represents a promising tool for ameliorating the fertilization rate in assisted reproductive technologies. A better knowledge of mechanisms that transform the quiescent oocyte into a pluripotent cell may also provide new insights for the clinical use of stem cells.
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Affiliation(s)
- Elisabetta Tosti
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Yves Ménézo
- London Fertility Associates, 104 Harley Street, London WIG7JD, UK
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Terriou P, Hans E, Cortvrindt R, Avon C, Charles O, Salzmann J, Lazdunski P, Giorgetti C. Papaverine as a replacement for pentoxifylline to select thawed testicular or epididymal spermatozoa before ICSI. ACTA ACUST UNITED AC 2015; 43:786-90. [DOI: 10.1016/j.gyobfe.2015.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/12/2015] [Indexed: 10/22/2022]
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Rubino P, Viganò P, Luddi A, Piomboni P. The ICSI procedure from past to future: a systematic review of the more controversial aspects. Hum Reprod Update 2015; 22:194-227. [DOI: 10.1093/humupd/dmv050] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 10/19/2015] [Indexed: 12/26/2022] Open
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Ebner T, Maurer M, Oppelt P, Mayer RB, Duba HC, Costamoling W, Shebl O. Healthy twin live-birth after ionophore treatment in a case of theophylline-resistant Kartagener syndrome. J Assist Reprod Genet 2015; 32:873-7. [PMID: 25956262 DOI: 10.1007/s10815-015-0486-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 04/13/2015] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To evaluate whether it is a feasible option to target the oocyte (with Ca(2+)-ionophore) in case that sperm motility cannot be restored in Kartagener syndrome. METHODS A case of a male Kartagener syndrome with exclusively immotile spermatozoa that did not react to the dimethylxanthine theophylline. Thus, half of the associated oocytes were treated for 15 min with the ready-to-use- ionophore CultActive immediately after ICSI whereas the other 50 % were injected with routine ICSI without artificial oocyte activation. Rates of fertilization, blastulation, pregnancy and live birth were evaluated. RESULTS Fertilization check revealed that none of the conventionally injected but 4/6 (66.7 %) of the artificially activated oocytes showed two pronuclei. Three embryos were of good and one of fair quality. Corresponding blastocyst formation rate was 3 out of 4 (75 %). A double embryo transfer led to a healthy twin birth in the 34th week of gestation (two boys with a birth weight of 1724 g and 2199 g). CONCLUSIONS This case indicates that Ca(2+)-ionophore treatment in cycles from theophylline-resistant Kartagener syndrome patients is a feasible option. The future will show if routine application of A23187 in Kartagener or primary cilia dyskinesis patients will be of benefit.
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Affiliation(s)
- T Ebner
- Landes- Frauen- und Kinderklinik, Kinderwunsch Zentrum, Krankenhausstr. 26-30, A-4040, Linz, Upper Austria, Austria,
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Nakata K, Yamashita N, Noda Y, Ohsawa I. Stimulation of human damaged sperm motility with hydrogen molecule. Med Gas Res 2015; 5:2. [PMID: 25649433 PMCID: PMC4300028 DOI: 10.1186/s13618-014-0023-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 12/27/2014] [Indexed: 02/08/2023] Open
Abstract
Background Sperm motility is a critical factor in male fertility. Low motility can be caused by a variety factors including abnormal spermatogenesis, oxidative damage, or depletion of intracellular ATP. Recent findings indicate that hydrogen molecule (H2) selectively reduces toxic reactive oxygen species. In this study, we investigated the effects of H2 on human sperm motility in vitro. Methods Experimentally damaged sperm suspensions from patients left at room temperature for > 5 days or frozen immediately after ejaculation were used. After exposure with H2, their forward motility was measured with a counting chamber. A time-lapse movie was recorded to analyze sperm swimming speed. Mitochondria were stained with a membrane potential-sensitive dye. Results H2 treatment significantly improved the rate of forward motility, whereas treatment with nitrogen gas did not. While treatment for 30 min was sufficient to improve motility, it did not affect sperm swimming speed. After 24 h, retreatment with H2 increased the motility again. H2 treatment also increased mitochondrial membrane potential. Forward motility of low motile frozen-thawed sperm from patients significantly improved with cleavage medium containing H2. Conclusions Our results illustrated that H2 treatment stimulates low sperm motility. H2 is a new promising tool for male infertility treatments.
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Affiliation(s)
- Kumiko Nakata
- Biological Process of Aging, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015 Japan ; Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, 1-2-10 Kugenumaishigami, Fujisawa, 251-0025 Japan
| | - Naoki Yamashita
- Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, 1-2-10 Kugenumaishigami, Fujisawa, 251-0025 Japan
| | - Yoshihiro Noda
- Animal Facility, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015 Japan
| | - Ikuroh Ohsawa
- Biological Process of Aging, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015 Japan
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Nordhoff V. How to select immotile but viable spermatozoa on the day of intracytoplasmic sperm injection? An embryologist's view. Andrology 2014; 3:156-62. [DOI: 10.1111/andr.286] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 11/27/2022]
Affiliation(s)
- V. Nordhoff
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster Germany
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Wöber M, Ebner T, Steiner SL, Strohmer H, Oppelt P, Plas E, Obruca A. A new method to process testicular sperm: combining enzymatic digestion, accumulation of spermatozoa, and stimulation of motility. Arch Gynecol Obstet 2014; 291:689-94. [DOI: 10.1007/s00404-014-3458-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 08/29/2014] [Indexed: 12/01/2022]
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Ebner T, Shebl O, Mayer RB, Moser M, Costamoling W, Oppelt P. Healthy live birth using theophylline in a case of retrograde ejaculation and absolute asthenozoospermia. Fertil Steril 2013; 101:340-3. [PMID: 24188878 DOI: 10.1016/j.fertnstert.2013.10.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/10/2013] [Accepted: 10/03/2013] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To analyze whether the use of ready-to-use theophylline is a feasible option in a case of retrograde ejaculation and absolute asthenozoospermia. DESIGN Case report. SETTING In vitro fertilization unit of a public hospital. PATIENT(S) Thirty-one-year-old nulliparous woman, and 39-year-old male with retrograde ejaculation and absolute asthenozoospermia. INTERVENTION(S) Retrieval of postejaculatory urine, restoration of motility using a methylxanthine, intracytoplasmic sperm injection, single-embryo transfer. MAIN OUTCOME MEASURE(S) Sperm motility, fertilization, embryo quality, live birth. RESULT(S) Successful fertilization and a single-embryo transfer resulted in a healthy live birth. CONCLUSION(S) Theophylline turned out to be a safe, efficient agent for stimulating immotile spermatozoa in patients with retrograde ejaculation.
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Affiliation(s)
- Thomas Ebner
- Abteilung für Gynäkologische Endokrinologie und Kinderwunsch Zentrum, Landes, Frauen, und Kinderklinik, Austria.
| | - Omar Shebl
- Abteilung für Gynäkologische Endokrinologie und Kinderwunsch Zentrum, Landes, Frauen, und Kinderklinik, Austria
| | - Richard Bernhard Mayer
- Abteilung für Gynäkologische Endokrinologie und Kinderwunsch Zentrum, Landes, Frauen, und Kinderklinik, Austria
| | - Marianne Moser
- Abteilung für Gynäkologische Endokrinologie und Kinderwunsch Zentrum, Landes, Frauen, und Kinderklinik, Austria
| | - Walter Costamoling
- Department of Urology, Krankenhaus der Barmherzigen Schwestern, Linz, Austria
| | - Peter Oppelt
- Abteilung für Gynäkologische Endokrinologie und Kinderwunsch Zentrum, Landes, Frauen, und Kinderklinik, Austria
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Application of a ready-to-use calcium ionophore increases rates of fertilization and pregnancy in severe male factor infertility. Fertil Steril 2012; 98:1432-7. [DOI: 10.1016/j.fertnstert.2012.07.1134] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Revised: 06/27/2012] [Accepted: 07/23/2012] [Indexed: 01/06/2023]
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Nordhoff V, Schüring AN, Krallmann C, Zitzmann M, Schlatt S, Kiesel L, Kliesch S. Optimizing TESE-ICSI by laser-assisted selection of immotile spermatozoa and polarization microscopy for selection of oocytes. Andrology 2012; 1:67-74. [DOI: 10.1111/j.2047-2927.2012.00020.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/13/2012] [Accepted: 08/24/2012] [Indexed: 11/28/2022]
Affiliation(s)
| | - A. N. Schüring
- Department of Gynaecology and Obstetrics; University Hospital of Münster; Münster; Germany
| | - C. Krallmann
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
| | - M. Zitzmann
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
| | - S. Schlatt
- Institute of Reproductive and Regenerative Biology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
| | - L. Kiesel
- Department of Gynaecology and Obstetrics; University Hospital of Münster; Münster; Germany
| | - S. Kliesch
- Department of Clinical Andrology; Centre of Reproductive Medicine and Andrology; University Hospital of Münster; Münster; Germany
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