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Bashiri Z, Gholipourmalekabadi M, Khadivi F, Salem M, Afzali A, Cham TC, Koruji M. In vitro spermatogenesis in artificial testis: current knowledge and clinical implications for male infertility. Cell Tissue Res 2023; 394:393-421. [PMID: 37721632 DOI: 10.1007/s00441-023-03824-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 08/14/2023] [Indexed: 09/19/2023]
Abstract
Men's reproductive health exclusively depends on the appropriate maturation of certain germ cells known as sperm. Certain illnesses, such as Klinefelter syndrome, cryptorchidism, and syndrome of androgen insensitivity or absence of testis maturation in men, resulting in the loss of germ cells and the removal of essential genes on the Y chromosome, can cause non-obstructive azoospermia. According to laboratory research, preserving, proliferating, differentiating, and transplanting spermatogonial stem cells or testicular tissue could be future methods for preserving the fertility of children with cancer and men with azoospermia. Therefore, new advances in stem cell research may lead to promising therapies for treating male infertility. The rate of progression and breakthrough in the area of in vitro spermatogenesis is lower than that of SSC transplantation, but newer methods are also being developed. In this regard, tissue and cell culture, supplements, and 3D scaffolds have opened new horizons in the differentiation of stem cells in vitro, which could improve the outcomes of male infertility. Various 3D methods have been developed to produce cellular aggregates and mimic the organization and function of the testis. The production of an artificial reproductive organ that supports SSCs differentiation will certainly be a main step in male infertility treatment.
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Affiliation(s)
- Zahra Bashiri
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, 1449614535, Iran.
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, 1449614535, Iran.
- Omid Fertility & Infertility Clinic, Hamedan, Iran.
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farnaz Khadivi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Department of Anatomy, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Maryam Salem
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Azita Afzali
- Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Tat-Chuan Cham
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Morteza Koruji
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, 1449614535, Iran.
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Shahid Hemmat Highway, Tehran, 1449614535, Iran.
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Raad G, Fakih F, Bazzi M, Massaad V, Nasrallah E, Yarkiner Z, Mourad Y, Khater DA, Balech R, Saliba C, Serdarogullari M, Fakih C. Lactobacillus plantarum secretions may exert a cryoprotective effect on human sperm motility: A prospective in vitro study. Andrology 2023; 11:1437-1450. [PMID: 36960890 DOI: 10.1111/andr.13433] [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: 06/19/2022] [Revised: 02/21/2023] [Accepted: 03/12/2023] [Indexed: 03/25/2023]
Abstract
BACKGROUND Semen cryopreservation is a widely used procedure for fertility preservation, despite some level of cryodamage that may occur in spermatozoa after thawing. However, there is some evidence that lactobacilli, one of the bacteria found in semen, might benefit sperm quality. OBJECTIVES This study aims to determine whether the addition of Lactobacillus plantarum secretions to sperm freezing medium has an impact on sperm motility, morphology, and DNA fragmentation. MATERIALS AND METHODS This is a prospective auto-controlled study. It was conducted on 30 raw semen samples from 30 infertile men attending a fertility center for semen analysis. Before freezing, all the samples were analyzed for motility, morphology, and DNA fragmentation percentages. Each sample was then divided equally into three aliquots. Cryopreservation was performed on each aliquot using one of the following three media: without Lactobacillus plantarum secretions (control group) or with 107 or 108 colony-forming units/mL Lactobacillus plantarum secretions. Sperm motility, morphology, and DNA integrity were evaluated after the cryopreservation media were added and after semen thawing. RESULTS The results of this study indicated that after thawing, no statistically significant decrease in progressive motility and non-progressive percentages were detected in the sperm freezing medium supplemented with 108 colony-forming units/mL Lactobacillus plantarum secretions than the fresh raw semen. Moreover, multivariate linear regression model analyses showed that the progressive motility (p = 0.02), non-progressive motility (p = 0.016), and non-motile spermatozoa (p = 0.012) percentages were significantly decreased in the freezing medium (without Lactobacillus plantarum secretions) compared to the fresh raw semen. DISCUSSION AND CONCLUSION To the best of our knowledge, this is the first study showing that Lactobacillus plantarum secretions had a cryoprotective effect on sperm motility when added to the sperm freezing medium. Furthermore, Lactobacillus plantarum secretions were found to protect sperm DNA integrity more effectively than the freezing medium without Lactobacillus plantarum secretions in non-normozoospermia group. Cryopreservation procedures must therefore be optimized to minimize any iatrogenically induced sperm DNA damage, given the correlation between sperm DNA damage and increased mutation loads in progeny.
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Affiliation(s)
- Georges Raad
- Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Fadi Fakih
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Marwa Bazzi
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Vinal Massaad
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | | | - Zalihe Yarkiner
- Department of Basic Sciences and Humanities, Faculty of Arts and Sciences, Northern Cyprus via Mersin, Cyprus International University, Turkey
| | - Youmna Mourad
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
| | | | - Rita Balech
- Faculty of Medicine, Lebanese University, Beirut, Lebanon
| | | | - Munevver Serdarogullari
- Department of Histology and Embryology, Northern Cyprus via Mersin, Faculty of Medicine, Cyprus International University, Turkey
| | - Chadi Fakih
- Al Hadi Laboratory and Medical Center, Beirut, Lebanon
- Faculty of Medicine, Lebanese University, Beirut, Lebanon
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Yi S, Feng Y, Wang Y, Ma F. Sialylation: fate decision of mammalian sperm development, fertilization, and male fertility†. Biol Reprod 2023; 109:137-155. [PMID: 37379321 DOI: 10.1093/biolre/ioad067] [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: 04/03/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 06/30/2023] Open
Abstract
Sperm development, maturation, and successful fertilization within the female reproductive tract are intricate and orderly processes that involve protein translation and post-translational modifications. Among these modifications, sialylation plays a crucial role. Any disruptions occurring throughout the sperm's life cycle can result in male infertility, yet our current understanding of this process remains limited. Conventional semen analysis often fails to diagnose some infertility cases associated with sperm sialylation, emphasizing the need to comprehend and investigate the characteristics of sperm sialylation. This review reanalyzes the significance of sialylation in sperm development and fertilization and evaluates the impact of sialylation damage on male fertility under pathological conditions. Sialylation serves a vital role in the life journey of sperm, providing a negatively charged glycocalyx and enriching the molecular structure of the sperm surface, which is beneficial to sperm reversible recognition and immune interaction. These characteristics are particularly crucial during sperm maturation and fertilization within the female reproductive tract. Moreover, enhancing the understanding of the mechanism underlying sperm sialylation can promote the development of relevant clinical indicators for infertility detection and treatment.
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Affiliation(s)
- Shiqi Yi
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ying Feng
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Yan Wang
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Fang Ma
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, Sichuan, China
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Ozimic S, Ban-Frangez H, Stimpfel M. Sperm Cryopreservation Today: Approaches, Efficiency, and Pitfalls. Curr Issues Mol Biol 2023; 45:4716-4734. [PMID: 37367049 DOI: 10.3390/cimb45060300] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
The cryopreservation of human spermatozoa has been an option for patients undergoing chemo or radiotherapies since the late 1950s. Presently, there are different techniques for the cryopreservation of spermatozoa. The most commonly used techniques are programmable slow freezing and freezing on liquid nitrogen vapors, while the use of vitrification is still not accepted as clinically relevant. Although there have been many improvements, the ideal technique for achieving better post-thaw sperm quality continues to be a mystery. A major obstacle during cryopreservation is the formation of intracellular ice crystals. Cryodamage generated by cryopreservation causes structural and molecular alterations in spermatozoa. Injuries can happen because of oxidative stress, temperature stress, and osmotic stress, which then result in changes in the plasma membrane fluidity, motility, viability, and DNA integrity of the spermatozoa. To prevent cryodamage as much as possible, cryoprotectants are added, and in some clinical trial cases, even antioxidants that may improve post-thaw sperm quality are added. This review discusses cryopreservation techniques, cryodamage on molecular and structural levels, and cryoprotectants. It provides a comparison of cryopreservation techniques and describes recent advances in those techniques.
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Affiliation(s)
- Sanja Ozimic
- Department of Human Reproduction, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Helena Ban-Frangez
- Department of Human Reproduction, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Martin Stimpfel
- Department of Human Reproduction, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
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5
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Xiao S, Riordon J, Lagunov A, Ghaffarzadeh M, Hannam T, Nosrati R, Sinton D. Human sperm cooperate to transit highly viscous regions on the competitive pathway to fertilization. Commun Biol 2023; 6:495. [PMID: 37149719 PMCID: PMC10164193 DOI: 10.1038/s42003-023-04875-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 04/26/2023] [Indexed: 05/08/2023] Open
Abstract
Human sperm compete for fertilization. Here, we find that human sperm, unexpectedly, cooperate under conditions mimicking the viscosity contrasts in the female reproductive tract. Sperm attach at the head region to migrate as a cooperative group upon transit into and through a high viscosity medium (15-100 cP) from low viscosity seminal fluid. Sperm groups benefit from higher swimming velocity, exceeding that of individual sperm by over 50%. We find that sperm associated with a group possess high DNA integrity (7% fragmentation index) - a stark contrast to individual sperm exhibiting low DNA integrity (> 50% fragmentation index) - and feature membrane decapacitation factors that mediate sperm attachment to form the group. Cooperative behaviour becomes less prevalent upon capacitation and groups tend to disband as the surrounding viscosity reduces. When sperm from different male sources are present, related sperm preferentially form groups and achieve greater swimming velocity, while unrelated sperm are slowed by their involvement in a group. These findings reveal cooperation as a selective mode of human sperm motion - sperm with high DNA integrity cooperate to transit the highly viscous regions in the female tract and outcompete rival sperm for fertilization - and provide insight into cooperation-based sperm selection strategies for assisted reproduction.
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Affiliation(s)
- Sa Xiao
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S 3G8, Canada
| | - Jason Riordon
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S 3G8, Canada
| | | | | | | | - Reza Nosrati
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - David Sinton
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, M5S 3G8, Canada.
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Antonouli S, Di Nisio V, Messini C, Daponte A, Rajender S, Anifandis G. A comprehensive review and update on human fertility cryopreservation methods and tools. Front Vet Sci 2023; 10:1151254. [PMID: 37143497 PMCID: PMC10151698 DOI: 10.3389/fvets.2023.1151254] [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: 01/25/2023] [Accepted: 03/29/2023] [Indexed: 05/06/2023] Open
Abstract
The broad conceptualization of fertility preservation and restoration has become already a major concern in the modern western world since a large number of individuals often face it in the everyday life. Driven by different health conditions and/or social reasons, a variety of patients currently rely on routinely and non-routinely applied assisted reproductive technologies, and mostly on the possibility to cryopreserve gametes and/or gonadal tissues for expanding their reproductive lifespan. This review embraces the data present in human-focused literature regarding the up-to-date methodologies and tools contemporarily applied in IVF laboratories' clinical setting of the oocyte, sperm, and embryo cryopreservation and explores the latest news and issues related to the optimization of methods used in ovarian and testicular tissue cryopreservation.
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Affiliation(s)
- Sevastiani Antonouli
- Department of Clinical Chemistry, Faculty of Medicine, University of Ioannina, Ioannina, Greece
| | - Valentina Di Nisio
- Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Christina Messini
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
| | - Alexandros Daponte
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
| | - Singh Rajender
- Division of Endocrinology, Central Drug Research Institute, Lucknow, India
| | - George Anifandis
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece
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Cryopreservation of Human Spermatozoa: Functional, Molecular and Clinical Aspects. Int J Mol Sci 2023; 24:ijms24054656. [PMID: 36902084 PMCID: PMC10002855 DOI: 10.3390/ijms24054656] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/17/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Cryopreservation is an expanding strategy to allow not only fertility preservation for individuals who need such procedures because of gonadotoxic treatments, active duty in dangerous occupations or social reasons and gamete donation for couples where conception is denied, but also for animal breeding and preservation of endangered animal species. Despite the improvement in semen cryopreservation techniques and the worldwide expansion of semen banks, damage to spermatozoa and the consequent impairment of its functions still remain unsolved problems, conditioning the choice of the technique in assisted reproduction procedures. Although many studies have attempted to find solutions to limit sperm damage following cryopreservation and identify possible markers of damage susceptibility, active research in this field is still required in order to optimize the process. Here, we review the available evidence regarding structural, molecular and functional damage occurring in cryopreserved human spermatozoa and the possible strategies to prevent it and optimize the procedures. Finally, we review the results on assisted reproduction technique (ARTs) outcomes following the use of cryopreserved spermatozoa.
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8
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Marinaro JA. Optimizing outcomes for men with severe infertility. Curr Opin Urol 2023; 33:45-49. [PMID: 36193850 DOI: 10.1097/mou.0000000000001046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE OF REVIEW To evaluate recent evidence related to optimizing outcomes for men with severe infertility, including effect of ejaculatory abstinence interval on semen parameters and assisted reproductive technology (ART) outcomes, and impact of cryopreservation on surgically retrieved testicular sperm obtained from men with nonobstructive azoospermia (also referred to as azoospermia due to spermatogenic dysfunction). RECENT FINDINGS Recent evidence strongly suggests that a short abstinence interval improves sperm motility and ART outcomes. Similarly, recent studies have concluded that using fresh vs. frozen testicular sperm results in higher live birth rates. SUMMARY Although the World Health Organization currently recommends a 2- to 7-day ejaculatory abstinence period, this interval is based more on the need to standardize semen parameters than clinical outcomes. In fact, recent evidence suggests that shorter abstinence consistently improves sperm motility and ART outcomes for infertile men. Similarly, recent studies have reported an improvement in live birth rates with fresh (vs. frozen) testicular sperm, though their retrospective design and lack of intention to treat analyses makes it difficult to draw strong conclusions. Although additional, well designed studies are needed, providers may be able to leverage these techniques in their practice to improve outcomes for some infertile men.
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Zhang W, Min L, Li Y, Lang Y, Hoque SAM, Adetunji AO, Zhu Z. Beneficial Effect of Proline Supplementation on Goat Spermatozoa Quality during Cryopreservation. Animals (Basel) 2022; 12:ani12192626. [PMID: 36230367 PMCID: PMC9558967 DOI: 10.3390/ani12192626] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Sperm cryopreservation contributes to the extensive utilization of artificial insemination (AI) in the daily livestock industry. However, due to the presence of few sperm with good biological function in post-thaw goat sperm, its use has been limited for AI purposes. Hence, its improvement has been the focus of many research studies. This study aimed to investigate the effects of proline supplementation of the freezing medium on goat sperm. The goat semen was cryopreserved with freezing medium supplementation of different concentrations of proline (0, 0.5, 1, 2 and 4 mM). The post-thaw sperm motility patterns, membrane integrity, acrosome integrity, lipid peroxidation (LPO) levels, malondialdehyde (MDA) levels, total antioxidant capacity (T-AOC), proline dehydrogenase (PRODH) activity, superoxide dis-mutase (SOD) activity, glutathione (GSH) levels and GSH/GSSG were evaluated. Likewise, the expression and immunofluorescent localization of PRODH in post-thaw goat sperm was also detected. It was observed that addition of 2 mM proline to the freezing medium significantly enhanced post-thaw goat sperm total motility, progressive motility, straight-linear velocity (VSL), curvilinear velocity (VCL), average path velocity (VAP), straightness (STR), linearity (LIN), membrane integrity and acrosome integrity. Interestingly, PRODH was expressed in post-thaw goat sperm, especially in the post-acrosome and sperm tail. Addition of 2 mM proline also significantly increased the post-thaw sperm PRODH activity compared to the control. Moreover, post-thaw goat sperm LPO levels and MDA levels were reduced by supplementation of 2 mM proline. Furthermore, compared to the control, the values of post-thaw goat sperm T-AOC, SOD activity, GSH level and GSH/GSSG were also significantly increased in 2 mM proline treatment. Reduction of post-thaw goat sperm apoptosis in 2 mM proline treatment was also observed as the levels of Caspase3 and Caspase9 were decreased by the supplementation with 2 mM proline. These observations suggest that the addition of 2 mM proline to the freezing medium increased post-thaw goat sperm quality by reducing oxidative stress during cryopreservation. These findings also provide novel insights into the use of proline as an efficient additive to enhance post-thaw goat sperm quality during cryopreservation.
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Affiliation(s)
- Weijing Zhang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Lingjiang Min
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Yajing Li
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Yaning Lang
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - S. A. Masudul Hoque
- Department of Animal Breeding and Genetics, Faculty of Veterinary Medicine and Animal Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Adedeji Olufemi Adetunji
- Department of Animal Sciences, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Zhendong Zhu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
- Correspondence:
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Shufaro Y. The ongoing challenge of optimizing sperm cryopreservation. Andrology 2022; 10:1121-1122. [PMID: 35980310 DOI: 10.1111/andr.13227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/10/2022] [Accepted: 07/01/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Yoel Shufaro
- Infertility and IVF Unit, Beilinson Hospital, Rabin Medical Center, Petach-Tikva and the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Arciero V, Ammar O, Maggi M, Vignozzi L, Muratori M, Dabizzi S. Vapour fast freezing with low semen volumes can highly improve motility and viability or DNA quality of cryopreserved human spermatozoa. Andrology 2022; 10:1123-1133. [PMID: 35712876 PMCID: PMC9544568 DOI: 10.1111/andr.13208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 04/02/2022] [Accepted: 06/04/2022] [Indexed: 11/29/2022]
Abstract
Objectives To challenge a vapour fast freezing (VFF) cryopreservation procedure (conventional VFF) with several vitrification protocols and VFF conducted with small semen volumes (10 μl, microVFF), in order to implement a procedure for sperm banking in subjects with small sperm number. Materials and methods Conventional VFF was conducted with test yolk buffer (TYB) as freezing medium and 500 μl straws as carriers. MicroVFF was conducted with TYB and using tips or cell sleepers as carriers. Vitrification was performed with TYB or SpermFreeze as freezing medium and with microspheres and tips as carriers. The effect of different procedures on progressive and total motility, viability, oxidative stress and DNA fragmentation of spermatozoa (sDF) was determined. Fresh and thawed samples, the latter after adequate washing/centrifuging, were evaluated. In some experiments, motility and viability recovery was determined in thawed samples, omitting the washing/centrifuging step. Results All the cryopreservation procedures blunted sperm motility and viability and induced increase of oxidative stress and sDF. However, VFF better preserved sperm motility and viability and less induced oxidative stress and sDF than vitrification, independently from the freezing medium and the carriers used in the latter. MicroVFF with cell sleepers resulted in a percentage increase of 57.58 ± 63.63%, 48.82 ± 74.96% and 24.55 ± 39.20% of, respectively, progressive and total motility and viability compared to the conventional VFF. Further, when tips were used, microVFF resulted in a percentage decrease of 15.77 ± 20.77% of sDF with respect to conventional VFF. Finally, omission of washing/centrifuging in post thawed samples, resulted in a much lower negative effect on motility and viability. Discussion and conclusion VFF, and in particular microVFF, better prevents sperm cryodamage than vitrification. Washing/centrifuging step after sample thawing seems to be responsible for a relevant fraction of damage to sperm motility and viability. Overall, our results are promising for developing a novel strategy of sperm banking in subjects with small sperm number, where low semen volumes are mandatory.
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Affiliation(s)
- Valentina Arciero
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Oumaima Ammar
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Mario Maggi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Linda Vignozzi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy.,Department of Andrology, Women's Endocrinology and Gender Incongruence Unit, Careggi Hospital, Italy
| | - Monica Muratori
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Sara Dabizzi
- Department of Andrology, Women's Endocrinology and Gender Incongruence Unit, Careggi Hospital, Italy
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Punjani N, Romanski PA, Bortoletto P, Kang C, Spandorfer S, Kashanian JA. The use of fresh compared to frozen ejaculated sperm has no impact on fresh embryo transfer cycle reproductive outcomes. J Assist Reprod Genet 2022; 39:1409-1414. [PMID: 35513747 DOI: 10.1007/s10815-022-02507-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/22/2022] [Indexed: 11/26/2022] Open
Abstract
PURPOSE To compare the reproductive outcomes of fresh embryo transfer (ET) cycles utilizing fresh versus frozen ejaculated sperm. METHODS First autologous fresh embryo transfer cycles at a single high-volume academic institution between 2013 and 2019 were retrospectively reviewed. IVF cycles using ejaculated sperm were included, and cycles using donor or surgically retrieved sperm were excluded. Sperm concentration was stratified as ≥ 5 and < 5 million/ml. The primary outcome was live birth, and the secondary outcomes were clinical intrauterine pregnancy (IUP) and miscarriage. A multivariable logistic regression model for the aforementioned outcomes was adjusted a priori for sperm concentration as well as maternal and paternal age. RESULTS A total of 6128 couples were included. Of these, 5780 (94.3%) utilized fresh sperm, and 348 (5.7%) frozen sperm. A total of 5716 (93.2%) had sperm concentrations ≥ 5 million/ml and 412 (6.7%) had sperm concentrations < 5 million/ml. On multivariable logistic regression, the use of freshly ejaculated sperm was not associated with significantly different odds of clinical IUP, miscarriage, or live birth when compared to cycles using frozen sperm. CONCLUSION For couples conceiving via fresh ET, the use of fresh versus frozen ejaculated sperm is not associated with reproductive outcomes.
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Affiliation(s)
- Nahid Punjani
- Division of Urology, Weill Cornell Medicine, 525 E 68th St, Starr 900, New York, NY, 10065, USA
| | - Phillip A Romanski
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medical College, 1305 York Avenue, 6Th Floor, New York City, NY, 10021, USA
| | - Pietro Bortoletto
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medical College, 1305 York Avenue, 6Th Floor, New York City, NY, 10021, USA
| | - Caroline Kang
- Division of Urology, Weill Cornell Medicine, 525 E 68th St, Starr 900, New York, NY, 10065, USA
| | - Steven Spandorfer
- The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medical College, 1305 York Avenue, 6Th Floor, New York City, NY, 10021, USA
| | - James A Kashanian
- Division of Urology, Weill Cornell Medicine, 525 E 68th St, Starr 900, New York, NY, 10065, USA.
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Cryopreservation Techniques for Ram Sperm. Vet Med Int 2022; 2022:7378379. [PMID: 35535035 PMCID: PMC9078814 DOI: 10.1155/2022/7378379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/18/2022] [Indexed: 12/02/2022] Open
Abstract
Germplasm storage and transportation in artificial insemination (AI) and other advanced technologies are facilitated by cryopreservation. In reproduction, the cryopreservation of sperm allows it to be transported across vast distances and used even after the sire's death. However, the technique of cryopreservation might damage sperm and limit their activity. Several cryobiological investigations have reported that the integrity of the sperm membrane is frequently involved in the physical and biological elements that affect sperm survival at low temperatures during the cryopreservation process. However, successful cryopreservation of ram sperm is still a work in progress because a considerable percentage of sperm do not survive the freezing and thawing process. Sperms are destroyed during cryopreservation of semen due to varying concentrations of cryoprotective chemicals and if semen is not cooled at optimal cooling rates. Hence, it is crucial to know the optimum cooling rates with freezing and thawing protocols for maximum recovery of viable and functional sperm cells for a successful cryo-freezing of ram spermatozoa. Therefore, the current study compiled and compared the research on the impact of different cryopreservation procedures, cooling rates, equilibration time, and thawing protocols on post-thaw ram semen quality.
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14
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Effect of curcumin on sperm parameters after the cryopreservation. Eur J Obstet Gynecol Reprod Biol 2021; 267:161-166. [PMID: 34773879 DOI: 10.1016/j.ejogrb.2021.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 09/09/2021] [Accepted: 10/24/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Cryopreservation refers to the cooling of cells and tissues to sub-zero temperatures in order to stop all biologic activity and preserve them for future use. Human sperm cryopreservation is an important tool for assisted reproductive technology and male fertility preservation. However, cryopreservation significantly reduces the quality of spermatozoa. The antioxidant effects of curcumin on different cells have been widely reported. This study was aimed to evaluate changes in post-thaw viability, morphology, motility, chromatin condensation and DNA integrity in response to the addition of curcumin to human sperm freezing extender. MATERIALS AND METHODS Semen of 23 normozoospermic men was collected and each sample was divided into three equal aliquots: Control, DMSO, Curcumin. The samples were analyzed freshly for viability (Eosin Y), morphology (Diff-Quick), motility (following WHO standarts), sperm chromatin packaging (aniline blue) and DNA integrity (acridine orange). The control group remained untreated and was mixed with cryopreservation medium (in-house 1:1). The DMSO group was mixed with cryopreservation medium containing 0.1% DMSO. The curcumin group was mixed with cryopreservation medium containing 10 µM curcumin. Samples stained with Diff-Quick and aniline blue were examined under light microscope, samples stained with Eosin Y were examined under phase-contrast microscope and samples stained with acridine orange were examined under fluorescence microscope. Ten days after cryopreservation, samples were thawed and pre-freeze analyses repeated. RESULTS Obtained results showed that cryopreservation significantly (P < 0.001) reduces sperm parameters. In Curcumin group, progressive motility, sperm chromatin condensation and DNA integrity significantly (P < 0.001) increased after the thawing process, as compared with the control and the DMSO group. CONCLUSION These results suggest that the addition of curcumin to cryopreservation medium improves post-thaw progressive motility, sperm chromatin condensation and DNA integrity. It seems that curcumin ameliorates detrimental effects of cryopreservation on human spermatozoa. Further research is needed on the use of curcumin and other antioxidant substances in sperm cryopreservation.
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15
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Bang S, Qamar AY, Tanga BM, Fang X, Cho J. Resveratrol supplementation into extender protects against cryodamage in dog post-thaw sperm. J Vet Med Sci 2021; 83:973-980. [PMID: 33896876 PMCID: PMC8267189 DOI: 10.1292/jvms.21-0125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Antioxidants have multiple protective roles in a variety of cells and thus can be used to
protect sperm against cryo-damage during freezing, which affects fertility. The
antioxidant resveratrol (3,5,4-trihydroxytrans-stilbene; RSV) has been reported to protect
the animal sperm during cryopreservation, including human sperm. In this study, we
assessed the protective effects of RSV supplementation on dog sperm cryopreservation.
Semen was collected from four dogs and the effect of different concentrations of RSV (0,
100, 200, and 400 µM) on post-thaw sperm quality was examined. After thawing, sperm
motility was assessed using computer-aided sperm analysis, and the structural integrity of
the plasma membrane, acrosome, and chromatin was examined. In addition, their
mitochondrial activity and gene expression were also assessed. Dog sperm cryopreserved
with 200 µM RSV showed significant improvement in post-thaw sperm motility and viability
compared with that of the control group (P<0.05). Moreover,
RSV-supplemented samples showed significantly higher numbers of sperm with an intact
plasma membrane, active mitochondria, and structural integrity of acrosomes and chromatin
than that of control samples (P<0.05). Furthermore, gene expression
showed that RSV supplemented samples showed lower expression of pro-apoptotic
(BAX), reactive oxygen species (ROS) modulator oxidative stress-related
(ROMO1) and 8-oxoguanine DNA glycosylase 1 (OGG1)
whereas higher expression levels of anti‐apoptotic (BCL2), protamine-2
(PRM2), protamine-3 (PRM3) and sperm
acrosome‐associated 3 (SPACA3) genes than control. Our results suggest
that RSV, at its optimum concentration, can be efficiently used as an antioxidant in the
cryopreservation of dog sperm.
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Affiliation(s)
- Seonggyu Bang
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ahmad Yar Qamar
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea.,Department of Clinical Sciences, College of Veterinary and Animal Sciences, Sub-campus, University of Veterinary and Animal Sciences, Jhang 35200, Lahore 54000, Pakistan
| | - Bereket Molla Tanga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea.,Faculty of Veterinary Medicine, Hawassa University, 05 Hawassa, Ethiopia
| | - Xun Fang
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jongki Cho
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
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16
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Amir H, Perl L, Barda S, Lantsberg D, Becker AS, Israeli G, Azem F, Oren A. Adolescent Transgender Females Present Impaired Semen Quality That Is Suitable for Intracytoplasmic Sperm Injection Even Before Initiating Gender-Affirming Hormone Treatment. Reprod Sci 2021; 29:260-269. [PMID: 33788173 DOI: 10.1007/s43032-021-00561-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/25/2021] [Indexed: 10/21/2022]
Abstract
The present study aimed to determine the semen quality and cryopreservation outcomes among adolescent transgender females at the time of fertility preservation (FP) before initiating gender-affirming hormone (GAH) treatment. This retrospective cohort study included 26 adolescent transgender females who underwent FP in our Fertility Institute between 06/2013 and 10/2020. Pre-freezing semen parameters were compared to WHO 2010 reference values. Post-thaw semen parameters were used to determine the adequate assisted reproductive technology (ART). A multivariate linear regression analysis was performed to assess the impact of medical and lifestyle factors on semen quality. The mean age at which adolescent transgender females underwent FP was 16.2 ± 1.38 years. The median values of all semen parameters in our study group were significantly lower compared to the WHO data, including volume (1.46 mL vs 3.2 mL, respectively, P = 0.001 ), sperm concentration (28 × 106/mL vs 64 × 106/mL, P < 0.001), total sperm number (28.2 × 106 vs 196 × 106, P < 0.001), total motility (51.6% vs 62%, P < 0.001), and normal morphology (2% vs 14%, P < 0.001). The frequency of semen abnormalities was teratozoospermia 72%, hypospermia 52%, oligozoospermia 28%, and azoospermia 4%. The median post-thaw total motile count was 0.17 × 106/vial, and the quality was adequate only for ICSI in 87.7% of the thawed semen samples. No correlation was found between selected medical and lifestyle factors and poor semen parameters. Semen quality is strongly reduced among adolescent transgender females before hormone therapy and their stored sperm samples are suitable for intracytoplasmic sperm injection (ICSI) rather than conventional IVF/intrauterine insemination (IUI).
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Affiliation(s)
- Hadar Amir
- Racine IVF Unit, Fertility Institute, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel. .,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Liat Perl
- Pediatric Endocrinology and Diabetes Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shimi Barda
- Racine IVF Unit, Fertility Institute, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Daniel Lantsberg
- Racine IVF Unit, Fertility Institute, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anat Segev Becker
- Pediatric Endocrinology and Diabetes Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Galit Israeli
- Pediatric Endocrinology and Diabetes Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Foad Azem
- Racine IVF Unit, Fertility Institute, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Asaf Oren
- Pediatric Endocrinology and Diabetes Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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17
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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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18
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Qamar AY, Fang X, Bang S, Shin ST, Cho J. The effect of astaxanthin supplementation on the post-thaw quality of dog semen. Reprod Domest Anim 2020; 55:1163-1171. [PMID: 32602977 DOI: 10.1111/rda.13758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/22/2020] [Indexed: 01/21/2023]
Abstract
Astaxanthin is a member of the carotenoid family well known for its anti-cancer, anti-diabetic, anti-inflammatory and antioxidant nature. This study was designed to investigate the effects of astaxanthin supplementation of the extender (buffer 2) on post-thaw dog semen quality. Semen from four healthy dogs was collected by digital manipulation twice a week. The ejaculates were pooled, washed, divided into four equal aliquots, diluted with the extender supplemented with different concentrations of astaxanthin (0, 0.5, 1 and 2 µM) and cryopreserved. The results showed that 1 µM astaxanthin was the optimum concentration that led to significantly higher (p < .05) post-thaw motility, kinematic parameters and viability than the other groups. In comparison with the control group, sperm samples supplemented with 1 µM astaxanthin showed significantly higher (p < .05) sperm counts with intact membranes (55.7 ± 0.6% vs. 51.3 ± 0.9%), intact acrosome (58.4 ± 0.7% vs. 53.5 ± 0.6%), active mitochondria (54.9 ± 0.5% vs. 42.6 ± 0.6%) and normal chromatin (67.6 ± 0.9% vs. 61.7 ± 0.6%). Furthermore, astaxanthin-supplemented samples showed significantly lower expression levels (p < .05) of pro-apoptotic (BAX), oxidative induced DNA damage repair (OGG1), oxidative stress-related (ROMO1) genes and higher expression levels of anti-apoptotic (BCL2), and sperm acrosome-associated (SPACA3) genes compared to the control. Thus, supplementation of 1 µM astaxanthin in semen extender results in improved freeze-thaw sperm quality of the dog.
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Affiliation(s)
- Ahmad Yar Qamar
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea.,Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang, Sub-campus University of Veterinary and Animal Sciences, Lahore, Jhang, Pakistan
| | - Xun Fang
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - Seonggyu Bang
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - Sang Tae Shin
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - Jongki Cho
- College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
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19
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Zhang Y, Lin H, Liu C, Huang J, Liu Z. A review for physiological activities of EGCG and the role in improving fertility in humans/mammals. Biomed Pharmacother 2020; 127:110186. [PMID: 32559843 DOI: 10.1016/j.biopha.2020.110186] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/12/2020] [Accepted: 04/17/2020] [Indexed: 12/19/2022] Open
Abstract
Epigallocatechin-3-gallate (EGCG) is a secondary metabolite in green tea, which has various physiological activities, including antioxidant, antitumor, and antiviral activities. Studies have shown that EGCG has a preventive effect on infertility by protecting germ cells and oocytes from damage. EGCG functions mainly through the regulation of ROS (reactive oxygen species) levels, which affect the expression of catalase (CAT), superoxide dismutase 1(SOD1), superoxide dismutase 2(SOD2), and glutathione peroxidase (GPx), has positive influence on other enzyme activities in germ cells and oocytes, and actively alters antioxidant activities. These enzymes above can inhibit the activation of extracellular signal-regulated proteins (Erk), induce apoptosis, and control the production of ROS in tissue cells. Here, we present a comprehensive overview of the mechanisms underlying the main physiological activities of EGCG, including antioxidant, antitumor, and antiviral activities, and their potential roles in male and female reproductive systems and fertility. This paper discusses the mechanisms by which EGCG retards the infertility of germ cells and oocytes and provides a supportive recommendation for improving fertility in humans and animals. We hope it will provide useful references for related research in mammalian reproduction.
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Affiliation(s)
- Yangbo Zhang
- Hunan Agricultural University Changsha Hunan, Hunan, China.
| | - Haiyan Lin
- Hunan Agricultural University Changsha Hunan, Hunan, China.
| | - Changwei Liu
- Hunan Agricultural University Changsha Hunan, Hunan, China.
| | - Jianan Huang
- Hunan Agricultural University Changsha Hunan, Hunan, China.
| | - Zhonghua Liu
- Hunan Agricultural University Changsha Hunan, Hunan, China.
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20
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Mehaisen GMK, Partyka A, Ligocka Z, Niżański W. Cryoprotective effect of melatonin supplementation on post-thawed rooster sperm quality. Anim Reprod Sci 2019; 212:106238. [PMID: 31864488 DOI: 10.1016/j.anireprosci.2019.106238] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/24/2019] [Accepted: 11/15/2019] [Indexed: 10/25/2022]
Abstract
Reactive oxygen species (ROS) and free radicals are one of the major detrimental factors that can negatively affect the quality of sperm during cryopreservation. Melatonin is an effective antioxidant and free radical scavenger in various cells. In this study, therefore, the aim was to evaluate the post-thawed quality of spermatozoa after cryopreservation of rooster semen in freezing extender supplemented with melatonin. Semen samples from seven Green-legged Partridge roosters were pooled and diluted with EK extender supplemented with 10-3, 10-6, or 10-9 M melatonin (control sample was prepared without supplementation with melatonin), and the pooled sample was subjected to cryopreservation. Post-thawed sperm motility was determined using the IVOS system, whereas plasma membrane status, acrosome integrity, mitochondrial activity, lipid peroxidation, chromatin status, and apoptotic-like changes were determined using fluorochromes and flow cytometry. Results, indicate post-thaw motile sperm cell count was greater (P < 0.05) in the frozen samples supplemented with melatonin (10-3 and 10-6 M) than the control sample. Although no significant differences were observed in post-thawed acrosomal integrity, plasma membrane integrity and mitochondrial activity were greater (P < 0.05) in samples frozen with melatonin (10-3 and 10-6 M) than that of the control sample. In addition, with supplementation of melatonin there was a decrease (P < 0.05) in the amount of lipid peroxidation, DNA fragmentation, and apoptotic-like changes after thawing. These results indicate there is a positive effect of melatonin supplementation in rooster semen freezing extenders on post-thaw sperm quality.
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Affiliation(s)
- Gamal M K Mehaisen
- Department of Animal Production, Faculty of Agriculture, Cairo University, 7 Gamaa Street, 12613, Giza, Egypt.
| | - Agnieszka Partyka
- Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Pl. Grunwaldzki 49, 50-366, Wroclaw, Poland.
| | - Zuzanna Ligocka
- Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Pl. Grunwaldzki 49, 50-366, Wroclaw, Poland
| | - Wojciech Niżański
- Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Pl. Grunwaldzki 49, 50-366, Wroclaw, Poland
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Cryopreservation of Sperm: Effects on Chromatin and Strategies to Prevent Them. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1166:149-167. [PMID: 31301051 DOI: 10.1007/978-3-030-21664-1_9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cryopreservation is a technique that can keep sperm alive indefinitely, enabling the conservation of male fertility. It involves the cooling of semen samples and their storage at -196 °C in liquid nitrogen. At this temperature all metabolic processes are arrested. Sperm cryopreservation is of fundamental importance for patients undergoing medical or surgical treatments that could induce sterility, such as cancer patients about to undergo genotoxic chemotherapy or radiotherapy, as it offers these patients not only the hope of future fertility but also psychological support in dealing with the various stages of the treatment protocols.Despite its importance for assisted reproduction technology (ART) and its success in terms of babies born, this procedure can cause cell damage and impaired sperm function. Various studies have evaluated the impact of cryopreservation on chromatin structure, albeit with contradictory results. Some, but not all, authors found significant sperm DNA damage after cryopreservation. However, studies attempting to explain the mechanisms involved in the aetiology of cryopreservation-induced DNA damage are still limited. Some reported an increase in sperm with activated caspases after cryopreservation, while others found an increase in the percentage of oxidative DNA damage. There is still little and contradictory information on the mechanism of the generation of DNA fragmentation after cryopreservation. A number of defensive strategies against cryoinjuries have been proposed in the last decade. Most studies focused on supplementing cryoprotectant medium with various antioxidant molecules, all aimed at minimising oxidative damage and thus improving sperm recovery. Despite the promising results, identification of the ideal antioxidant treatment method is still hampered by the heterogeneity of the studies, which describe the use of different antioxidant regimens at different concentrations or in different combinations. For this reason, additional studies are needed to further investigate the use of antioxidants, individually and in combination, in the cryopreservation of human sperm, to determine the most beneficial conditions for optimal sperm recovery and preservation of fertility.
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22
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Evaluation and improvement of the novel method for vitrification of a few human sperms. Eur J Obstet Gynecol Reprod Biol 2019; 240:74-79. [PMID: 31234060 DOI: 10.1016/j.ejogrb.2019.06.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 06/12/2019] [Accepted: 06/16/2019] [Indexed: 01/12/2023]
Abstract
RESEARCH QUESTION The purposes of this study are to evaluate the performance of the novel SpermVD device on vitrification of a few human sperms, and determine whether PICSI dish and density gradient centrifugation can improve the quality of sperm after thawing. DESIGN AND METHODS In order to determine the suitable preparation methods, both washed sperm and neat sperm were selected in ICSI dish and PICSI dish, and frozen with the novel SpermVD device. The selected sperms were transferred to freezing droplets with 1 μl droplet of a 50/50 v/v mixture of QA Sperm Freezing Medium and QA Medium w/Hepes on the SpermVD wells. And the device was exposed to vapor of liquid nitrogen for 5 min and then placed into LN2 immediately. The sperms were thawed in a 37℃ oil filled dish which contained QA Medium w/Hepes droplets and they were searched and revaluated immediately. The frozen effects of sperm were evaluated by progressive motility, motility, viability and recovery rates of freezing-thawing sperm. RESULTS After freezing-thawing, the overall sperm recovery rate was 94.2% with 70% viability, 20.7% progressive motility, and 36.2% motility. The progressive motility, motility, viability and recovery rates of washed sperm were lower than that of the neat sperm, with a significant difference (P < 0.01) at both viability and motility rates. In addition, the viability rate was significantly higher in PICSI dish group than that of ICSI dish group (P < 0.01) and the motility, recovery and progressive motility rates were not significantly different between the two groups (P > 0.05). CONCLUSIONS The spermVD device was one of the effective platforms for freezing a few human sperms and using PICSI dish to select mature neat sperms could improve the quality of sperm after thawing. Density gradient centrifugation might be not required or suitable sperm preparation methods before freezing.
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23
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Le MT, Nguyen TTT, Nguyen TT, Nguyen TV, Nguyen TAT, Nguyen QHV, Cao TN. Does conventional freezing affect sperm DNA fragmentation? Clin Exp Reprod Med 2019; 46:67-75. [PMID: 31181874 PMCID: PMC6572667 DOI: 10.5653/cerm.2019.46.2.67] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/16/2019] [Indexed: 12/16/2022] Open
Abstract
Objective Sperm cryopreservation has been widely used in assisted reproductive technology, as it offers great potential for the treatment of some types of male infertility. However, cryopreservation may result in changes in membrane lipid composition and acrosome status, as well as reductions in sperm motility and viability. This study aimed to evaluate sperm DNA fragmentation damage caused by conventional freezing using the sperm chromatin dispersion test. Methods In total, 120 fresh human semen samples were frozen by conventional methods, using SpermFreeze Solution as a cryoprotectant. Routine semen analysis and a Halosperm test (using the Halosperm kit) were performed on each sample before freezing and after thawing. Semen parameters and sperm DNA fragmentation were compared between these groups. Results There was a significant decrease in sperm progressive motility, viability, and normal morphology after conventional freezing (32.78%, 79.58%, and 3.87% vs. 16%, 55.99%, and 2.55%, respectively). The sperm head, midpiece, and tail defect rate increased slightly after freezing. Furthermore, the DNA fragmentation index (DFI) was significantly higher after thawing than before freezing (19.21% prior to freezing vs. 22.23% after thawing). Significant increases in the DFI after cryopreservation were observed in samples with both normal and abnormal motility and morphology, as well as in those with normal viability. Conclusion Conventional freezing seems to damage some sperm parameters, in particular causing a reduction in sperm DNA integrity.
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Affiliation(s)
- Minh Tam Le
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam.,Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Thai Thanh Thi Nguyen
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Tung Thanh Nguyen
- Department of Histology and Embryology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Trung Van Nguyen
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Tam An Thi Nguyen
- Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Quoc Huy Vu Nguyen
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Thanh Ngoc Cao
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam.,Center for Reproductive Endocrinology and Infertility, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
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24
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Pabón D, Meseguer M, Sevillano G, Cobo A, Romero JL, Remohí J, de Los Santos MJ. A new system of sperm cryopreservation: evaluation of survival, motility, DNA oxidation, and mitochondrial activity. Andrology 2019; 7:293-301. [PMID: 30916488 DOI: 10.1111/andr.12607] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 02/08/2019] [Accepted: 02/18/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Sperm vitrification (V) is a method for cryopreservation, without the use of conventional cryoprotectants, by plunging the sperm suspension directly into liquid nitrogen (LN25). OBJECTIVE This study aimed to compare the new system of V with conventional freezing (CF) protocol using fresh spermatozoa as reference (C). MATERIAL AND METHODS Prospective cohort study. A total of 47 sperm samples from men attending the infertility clinic at Instituto Valenciano de Infertilidad Valencia. The sperm V solution was 0.3 M trehalose-sucrose and plunged directly in liquid nitrogen in microdroplets of 5-10 lL, using a new system collector of V. Sperm viability indicators such as sperm motility, vitality rates, mitochondrial function, and sperm DNA oxidation were assessed before and after cryopreservation. Sperm motility and vitality analysis were performed according to published guidelines of the World Health Organization (WHO, 2010). Mitochondrial function was evaluated using JC-1 (fluorescent cationic dye, 5,50,6,60-tetrachloro-1-10,3,30-tetraethyl-benzamidazolocarbocyanin iodide). Sperm DNA oxidation was determined using a fluorescent assay (Oxy-DNA test) for the detection of 8-oxoguanine. The evaluation was carried out before and after cryopreservation using flow cytometry. Statistical analysis was performed using ANOVA and chi-square test, and p < 0.05 was considered statistically significant. RESULT(S) Sperm parameters, including progressive motility, total motility, and viability, observed after cryopreservation were as follows: C = 74.9% [1] 12.3, CF = 27.2% [1] 8.4, V = 42.3% [1] 9.3, p < 0.001; C = 90.1 [1] 6.8, CF = 42.0 [1] 12.9, V = 61.4 [1] 11.8, p < 0.001; C = 90.0% [1] 7.4, CF = 42.5% [1] 14.6, V = 70.9% [1] 6.5, p < 0.001, respectively. Regarding Oxy-DNA and mitochondrial activity, they were significantly affected in both groups (V and CF) when compared to the control group. DISCUSSION The sperm V and CF have negative impact on sperm parameters as well as DNA integrity and mitochondrial activity. However, sperm V presented improved sperm motility recovery, similar levels of DNA oxidation, and, moreover, a slightly increase in mitochondrial activity when compared to the conventional method. CONCLUSION(S) V as an optimal protocol for sperm cryopreservation.
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Affiliation(s)
- D Pabón
- IVI VALENCIA, Valencia, Spain
| | | | | | - A Cobo
- IVI VALENCIA, Valencia, Spain
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Karthikeyan M, Arakkal D, Mangalaraj AM, Kamath MS. Comparison of Conventional Slow Freeze versus Permeable Cryoprotectant-Free Vitrification of Abnormal Semen Sample: A Randomized Controlled Trial. J Hum Reprod Sci 2019; 12:150-155. [PMID: 31293330 PMCID: PMC6594128 DOI: 10.4103/jhrs.jhrs_154_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Background: The cryopreservation of semen samples by slow freezing remains as standard protocol. Recently, vitrification of spermatozoa was successfully reported with superior outcome. Till date, there is no randomized trial comparing the two different protocols. Aim: The aim of the present study is to evaluate the slow freezing with vitrification of the subfertile men spermatozoa to evaluate the progressive motility, vitality, and chromatin integrity. Setting: The study was conducted at University teaching hospital. Design: Study design involves randomized control trial. Materials and Methods: Twenty subfertile men with semen characteristics of severe oligoasthenozoospermia (SOA) and very SOA (VSOA) randomized to undergo slow freezing and vitrification protocol and cryopreserved at 1-month and 6-month storage interval, postthawed or warmed, samples were assessed for progressive motility, vitality, and hyaluronan binding. SPSS version 14 software was used for statistical analysis. Results: The SOA samples at 1 month revealed significantly higher motility (42% [22%–74%] vs. 7% [1%–13%]; P = 0.015) and vitality (57% [45%–78%] vs. 34.5% [27–42]; P < 0.001) following vitrification compared to slow-freeze method. For Very severe oligoasthenozoospermia (VSOA), the motility was significantly higher following vitrification (14.5% [2%–32%] vs. 2.5% [0%–4%]; P = 0.007). At 6 months, no statistically significant difference in motility was found between the two groups for Severe Oligoasthenozoospermia (SOA) samples (27% [13%–62%] vs. 8% [0%–11%]; P = 0.066), but motility was significantly higher following vitrification for VSOA samples (12.5% [3%–32%] vs. 2% [1%–5%]; P = 0.019). The hyaluronan-binding assay was comparable in both the groups at 6 months. Conclusions: The current study found the vitrification method involving the use of only nonpermeable cryoprotectants for cryopreservation of abnormal semen sample to be an effective alternative to the conventional slow-freeze technique.
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Affiliation(s)
- Muthukumar Karthikeyan
- Department of Reproductive Medicine, Reproductive Medicine Unit, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Darshana Arakkal
- Department of Reproductive Medicine, Reproductive Medicine Unit, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Ann M Mangalaraj
- Department of Reproductive Medicine, Reproductive Medicine Unit, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
| | - Mohan S Kamath
- Department of Reproductive Medicine, Reproductive Medicine Unit, Christian Medical College and Hospital, Vellore, Tamil Nadu, India
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Etebary S, Yari N, Khalili MA, Kalantar SM, Anvari M. Testicular human spermatozoa cryopreservation correlation between sperm head vacuoles, DNA fragmentation and mitochondrial membrane potential. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2018. [DOI: 10.1016/j.mefs.2018.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Andrade MBR, Bertolla RP, Intasqui P, Antoniassi MP, Tibaldi DS, Belardin LB, Spaine DM. Effect of orchiectomy on sperm functional aspects and semen oxidative stress in men with testicular tumours. Andrologia 2018; 51:e13205. [DOI: 10.1111/and.13205] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 09/30/2018] [Accepted: 10/18/2018] [Indexed: 12/16/2022] Open
Affiliation(s)
- Maria B. R. Andrade
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
| | - Ricardo P. Bertolla
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
| | - Paula Intasqui
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
| | - Mariana P. Antoniassi
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
| | - Danielle S. Tibaldi
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
| | - Larissa B. Belardin
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
| | - Deborah M. Spaine
- Division of Urology, Department of Surgery, Human Reproduction Section; Sao Paulo Federal University - Sao Paulo Hospital; Sao Paulo Brazil
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Miah AG, Bathgate R, Hamano KI, Salma U. Effects of pre-freeze Nigella sativa oil supplementation on cryosurvival of ovine spermatozoa. Reprod Domest Anim 2018; 53:1424-1433. [PMID: 30242923 DOI: 10.1111/rda.13275] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/26/2018] [Indexed: 11/26/2022]
Abstract
The study was designed with three experiments to evaluate the effects of pre-freeze supplementation of Nigella sativa oil (NSO) and thymoquinone (TQ) on total motility, progressive motility, biokinetic characteristics, acrosomal integrity and DNA integrity of cryopreserved ovine spermatozoa. Semen samples collected from three proven fertile Merino rams were diluted with a Tris-based cryomedia containing different levels of NSO (Experiment I: 0, 10, 100 and 1,000 g/ml), TQ (Experiment II: 0, 1, 10 and 20 g/ml) and their optimum levels (Experiment III: 100 g/ml of NSO, 10 g/ml of TQ and 1 mM of α-tocopherol and cryopreserved as pellet (200µL) and subsequently evaluated at different post-thaw incubation periods (0, 2 and 4 hr). The results revealed that the percentage of total motility, progressive motility and biokinetic characteristics such as average path velocity, curvilinear velocity and straight-line velocity were higher (p < 0.05) in the sperm aliquots cryopreserved with 100 g/ml NSO or 10 g/ml TQ than in the sperm aliquots cryopreserved without supplementation just after thawing and 2 hr of post-thaw incubation. Among the supplements, NSO (100 g/ml) showed higher values of the total motility, progressive motility, biokinetic characteristics specially, average path velocity, curvilinear velocity and straight-line velocity, acrosome integrity and DNA integrity compared with the spermatozoa frozen without supplementation. Therefore, the results suggest that NSO may be added to the cryomedium to improve the cryosurvival of ovine spermatozoa.
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Affiliation(s)
- Abdul G Miah
- Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
| | - Roslyn Bathgate
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Sydney, NSW, Australia
| | - Koh-Ichi Hamano
- Laboratory of Reproductive Functions in Mammals, Faculty of Agriculture, Shinshu University, Nagano, Japan
| | - Ummay Salma
- Faculty of Veterinary and Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh
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Effects of human sperm cryopreservation on apoptotic markers in normozoospermic and non-normozoospermic patients. ZYGOTE 2018; 26:308-313. [PMID: 30220260 DOI: 10.1017/s0967199418000254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
SummaryThe negative effects of cryopreservation on sperm parameters are well documented but little information is known about molecular basis of the process. The aim of the present study was to investigate the possible effects of sperm cryopreservation on main apoptotic signs including DNA fragmentation and caspase-3 activation and to determine if these effects vary according to sperm parameters. Sperm samples of 72 patients were cryopreserved. The patients were sub-grouped as normozoospermic or non-normozoospermic patients according to their semen parameters. DNA fragmentation rates and caspase-3 activation levels were analyzed before and after cryopreservation in both groups. Mean DNA fragmentation rate was increased significantly from 23.98% in neat semen samples to 27.34% after cryopreservation (P = 0.03). DNA fragmentation rates were slightly higher in non-normozoospermic patients compared with the normozoospermic patients in both the neat semen and after cryopreservation (23.25 and 24.71% vs. 26.32 and 28.36%, respectively) although the difference obtained were not statistically significant. An increasing trend for caspase-3 activations (0.093 vs. 0.116) was observed after cryopreservation but the differences were not statistically significant. Caspase-3 activation was found to be slightly higher in non-normozoospermic patients both in the neat semen and after cryopreservation compared with the normozoospermic patients but the differences were not statistically significant. Caspase-3 expression was also shown using immunocytochemistry in both fresh ejaculated sperm and thawed sperm after cryopreservation but at different localizations. The cryopreservation process had detrimental effects on sperm quality but the quality of the sperm samples was not adversely effective for the apoptotic markers including DNA fragmentation and caspase-3 activation patterns. In fact, it was the cryopreservation process itself that adversely effected the above apoptotic markers and apoptosis. It was concluded therefore that sperm cell cryopreservation triggers apoptosis after thawing and this process adversely affects semen parameters.
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Hezavehei M, Sharafi M, Kouchesfahani HM, Henkel R, Agarwal A, Esmaeili V, Shahverdi A. Sperm cryopreservation: A review on current molecular cryobiology and advanced approaches. Reprod Biomed Online 2018; 37:327-339. [PMID: 30143329 DOI: 10.1016/j.rbmo.2018.05.012] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 05/19/2018] [Accepted: 05/22/2018] [Indexed: 11/19/2022]
Abstract
The cryopreservation of spermatozoa was introduced in the 1960s as a route to fertility preservation. Despite the extensive progress that has been made in this field, the biological and biochemical mechanisms involved in cryopreservation have not been thoroughly elucidated to date. Various factors during the freezing process, including sudden temperature changes, ice formation and osmotic stress, have been proposed as reasons for poor sperm quality post-thaw. Little is known regarding the new aspects of sperm cryobiology, such as epigenetic and proteomic modulation of sperm and trans-generational effects of sperm freezing. This article reviews recent reports on molecular and cellular modifications of spermatozoa during cryopreservation in order to collate the existing understanding in this field. The aim is to discuss current freezing techniques and novel strategies that have been developed for sperm protection against cryo-damage, as well as evaluating the probable effects of sperm freezing on offspring health.
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Affiliation(s)
- Maryam Hezavehei
- Department of EmbryologyReproductive Biomedicine Research CentreRoyan Institute for Reproductive BiomedicineACECRTehranIran; Department of Animal BiologyFaculty of Biological SciencesKharazmi UniversityTehranIran
| | - Mohsen Sharafi
- Department of Poultry ScienceFaculty of AgricultureTarbiat Modares UniversityTehranIran.
| | | | - Ralf Henkel
- American Centre for Reproductive MedicineCleveland ClinicClevelandUSA
| | - Ashok Agarwal
- Department of Medical BioscienceUniversity of the Western CapeBellvilleSouth Africa
| | - Vahid Esmaeili
- Department of EmbryologyReproductive Biomedicine Research CentreRoyan Institute for Reproductive BiomedicineACECRTehranIran
| | - Abdolhossein Shahverdi
- Department of EmbryologyReproductive Biomedicine Research CentreRoyan Institute for Reproductive BiomedicineACECRTehranIran.
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Fang F, Ni K, Shang J, Zhang X, Xiong C, Meng T. Expression of mitofusin 2 in human sperm and its relationship to sperm motility and cryoprotective potentials. Exp Biol Med (Maywood) 2018; 243:963-969. [PMID: 30058380 DOI: 10.1177/1535370218790919] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Mitofusin 2 is a kind of mitochondria membrane protein that has been implicated in maintenance of mitochondrial morphology and function. However, the expression and function of mitofusin 2 in human sperm are not well described at present. The aim of this study was to explore the location of mitofusin 2 in human sperm and to discover its relationship to human sperm functions like motility and cryoprotective potentials. Our result showed that mitofusin 2 is specifically localized in the 5-7 μm midpiece between the neck and main part of human sperm tail. The expression level of mitofusin 2 in human sperm was significantly different between the normozoospermia and asthenozoospermia groups ( P < 0.05); meanwhile, the sperm of the asthenozoospermia group had a lower mitochondrial membrane potential ( P < 0.05), but the results of TUNEL assay did not show significant difference between the two groups. Furthermore, we found that the expression level of mitofusin 2 in the freeze-resistant group (cryo-survival rate >40%) was significantly higher than that of the freeze-intolerant group (cryo-survival rate ≤40%) ( P < 0.05). These results demonstrate that the expression level of mitofusin 2 is related to motility and cryoprotective potentials of human sperm. Mitofusin 2 may play a crucial role in the function of human sperm, which needs further research to discover the mechanism. Impact statement The exact function of mitochondria in human sperm before and during fertilization process remains controversial. MFN2 is a kind of mitochondria membrane protein and participates in the regulation of mitochondrial morphology and function. In this study, we discover the relationship of MFN2 expression to human sperm motility and cryoprotective potentials. Our results suggest that MFN2 could be a new target for the mechanism research of asthenozoospermia. MFN2 may also serve as a protein marker predicting the ability of human sperm to sustain cryopreservation.
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Affiliation(s)
- Fang Fang
- 1 Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,2 Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ke Ni
- 3 Department of Anesthesiology, Tongji Medical College, Huazhong University of Science and Technology, Tongji Hospital, Wuhan 430030, China
| | - Jin Shang
- 2 Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoke Zhang
- 2 Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chengliang Xiong
- 2 Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,4 Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan 430013, China
| | - Tianqing Meng
- 4 Center of Reproductive Medicine, Wuhan Tongji Reproductive Medicine Hospital, Wuhan 430013, China
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Ordoqui R, Barrera N, Montes JM, Canepa M, Bonelli C, Surka C, Torrens A, Cantú L, Plessis SSD. A retrospective study on sperm banking: a Uruguayan experience. JBRA Assist Reprod 2018; 22:82-88. [PMID: 29727140 PMCID: PMC5982550 DOI: 10.5935/1518-0557.20180037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective The purpose of this study was to investigate the status of homologous sperm
banking in Uruguay. Methods A retrospective investigation was performed on data collected between 2013
and 2015. Reasons for sperm banking, patient age, pre-freeze and post-thaw
semen parameters, and recovery rates were analyzed. Results 623 samples were cryobanked between 2013 and 2015. Only 324 samples were
considered for analysis after selection based on inclusion criteria. In most
cases the samples were stored because the patients were undergoing assisted
reproductive technology (ART) treatment (n=190; 58,64%) or for oncological
reasons (n=113; 34,88%). The median age of bankers was 34 years. In the
cancer group, 61.95% (n=70) of the subjects had been diagnosed with
testicular cancer. Medians of semen parameters for both groups were above
the lower reference limits dictated by the World Health Organization (2010). In fresh samples, a
significant difference was observed in progressive motility (47% vs. 56%)
between ART and oncological patients. After thawing, total motility (27% vs.
32%), progressive motility (19% vs. 22%), and vitality (48% vs. 56%)
differed significantly between ART and oncological bankers. Conclusion Semen banking has been performed successfully in Uruguay and outcomes are on
par with international standards. Surprisingly, the semen parameters of the
cancer group were nearly normal.
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Affiliation(s)
- Rosina Ordoqui
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Natalibeth Barrera
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - José María Montes
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Mariel Canepa
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Carla Bonelli
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Carolina Surka
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Andrea Torrens
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Lidia Cantú
- Fertilab Laboratorio de Análisis Clínicos, Laboratorio de Andrología, Montevideo, Uruguay
| | - Stefan S du Plessis
- Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Amor H, Zeyad A, Alkhaled Y, Laqqan M, Saad A, Ben Ali H, Hammadeh ME. Relationship between nuclear DNA fragmentation, mitochondrial DNA damage and standard sperm parameters in spermatozoa of fertile and sub-fertile men before and after freeze-thawing procedure. Andrologia 2018. [PMID: 29527711 DOI: 10.1111/and.12998] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The aim of this study was to assess the stability of nuclear and mitochondrial DNA (n-DNA and mt-DNA) of spermatozoa under freeze-thawing and to find out the correlation between them and their association with standard sperm parameters. Forty-three semen samples were collected from fertile (G.1; n = 29) and sub-fertile (G.2; n = 14). N-DNA fragmentation was determined by TUNEL assay and mt-DNA using caspase 3 staining. Each semen sample was frozen at -196°C by the programmed freezer. Freeze-thawing decrease vitality, total motility and membrane integrity from (43.02 ± 22.74%; 31.63 ± 18.15%; 51.5 ± 24.82%) to (22.71 ± 17.3%; 9.21 ± 6.61%; 34.64 ± 19.92% respectively [p < .001]). G.1 native spermatozoa stained positive with TUNEL and caspase 3 were (14.85 ± 17.6% and 5.8 ± 11.59%) and increased after freeze-thawing to 27.54 ± 19.74% (p = .004) and 7.3 ± 6.13% (p = .01) respectively. In G.2, TUNEL and caspase 3 were (19.84 ± 17.52% and 7.53 ± 8.56%) and increased to (29.48 ± 16.97% [p = .03] and 10.21 ± 11.73%). In conclusion, freeze-thawing process affects not only semen parameters but also n-DNA and mt-DNA. Therefore, n-DNA and mt-DNA could be used as sensitive parameters for assessment of the cryodamage of human spermatozoa.
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Affiliation(s)
- H Amor
- Laboratory of Molecular Biology, Cytogenetic& Reproductive Medicine, University Hospital Farhat Hachad Sousse, University of Monastir, Monastir, Tunisia.,Department of Obstetrics & Gynaecology, University of Saarland, Homburg/Saar, Germany
| | - A Zeyad
- Department of Obstetrics & Gynaecology, University of Saarland, Homburg/Saar, Germany
| | - Y Alkhaled
- Department of Obstetrics & Gynaecology, University of Saarland, Homburg/Saar, Germany
| | - M Laqqan
- Department of Obstetrics & Gynaecology, University of Saarland, Homburg/Saar, Germany
| | - A Saad
- Laboratory of Molecular Biology, Cytogenetic& Reproductive Medicine, University Hospital Farhat Hachad Sousse, University of Monastir, Monastir, Tunisia
| | - H Ben Ali
- Laboratory of Molecular Biology, Cytogenetic& Reproductive Medicine, University Hospital Farhat Hachad Sousse, University of Monastir, Monastir, Tunisia
| | - M E Hammadeh
- Department of Obstetrics & Gynaecology, University of Saarland, Homburg/Saar, Germany
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Esteso MC, Toledano-Díaz A, Castaño C, Pradiee J, Lopez-Sebastián A, Santiago-Moreno J. Effect of two cooling protocols on the post-thaw characteristics of Iberian ibex sperms. Cryobiology 2018; 80:12-17. [DOI: 10.1016/j.cryobiol.2018.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 01/11/2018] [Accepted: 01/11/2018] [Indexed: 11/26/2022]
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Isachenko V, Rahimi G, Mallmann P, Sanchez R, Isachenko E. Technologies of cryoprotectant-free vitrification of human spermatozoa: asepticity as criterion of effectiveness. Andrology 2017; 5:1055-1063. [DOI: 10.1111/andr.12414] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/23/2017] [Accepted: 07/11/2017] [Indexed: 11/30/2022]
Affiliation(s)
- V. Isachenko
- Department of Obstetrics and Gynaecology; University Maternal Hospital; Cologne University; Cologne Germany
| | - G. Rahimi
- Department of Obstetrics and Gynaecology; University Maternal Hospital; Cologne University; Cologne Germany
| | - P. Mallmann
- Department of Obstetrics and Gynaecology; University Maternal Hospital; Cologne University; Cologne Germany
| | - R. Sanchez
- Center of Translational Medicine; Scientific and Technological Bioresource Nucleus (CEMT- BIOREN); Department of Preclinical Science, Faculty of Medicine, University de La Frontera; Temuco Chile
| | - E. Isachenko
- Department of Obstetrics and Gynaecology; University Maternal Hospital; Cologne University; Cologne Germany
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Effectiveness of human spermatozoa biomarkers as indicators of structural damage during cryopreservation. Cryobiology 2017. [PMID: 28641947 DOI: 10.1016/j.cryobiol.2017.06.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Human spermatozoa cryopreservation techniques are used to maintain and protect male fertility in cases such as infertility and malignancy treatments. However, during cryopreservation, the spermatozoa's metabolic rate is reduced and they undergo dramatic functional and structural changes owing to exposure to cryoprotectants and freezing-thawing procedures. While the effects of cryopreservation on cells are documented, to date the induced cryodamage on structural and/or functional sperm biomarkers is not well established at multivariate scale. To address this question, we performed basic sperm analysis, sperm DNA fragmentation assessment, spontaneous acrosome reaction measurement, and cytoskeleton evaluation after thawing samples from subjects with normal and low-quality semen. A cryodamage rate was used to determine the effects of the freeze-thaw process on spermatozoa. In addition, a Principal Component Analysis (PCA) was used for data reduction and to evaluate sperm-specific patterns during the cryopreservation process. We found that the vitality, progressive motility and sperm count from low-quality samples after cryopreservation show higher damage rates (≥40%) than in normal sperm samples. However, cytoskeleton, DNA, tail and mid-piece and acrosome display the highest cryodamage rates (∼50-99%) and are equally susceptible to cryopreservation-induced damage in both low- and normal-quality semen samples. Overall, the evaluation of these parameters provides meaningful information about different aspects of sperm functionality after cryopreservation.
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Partyka A, Rodak O, Bajzert J, Kochan J, Niżański W. The Effect of L-Carnitine, Hypotaurine, and Taurine Supplementation on the Quality of Cryopreserved Chicken Semen. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7279341. [PMID: 28523277 PMCID: PMC5421088 DOI: 10.1155/2017/7279341] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/30/2017] [Indexed: 01/26/2023]
Abstract
The objective of this study was to investigate the effect of L-carnitine (LC), hypotaurine (HT), and taurine (T) on the quality of frozen-thawed chicken semen. Pooled semen samples were divided into seven aliquots (control, 1 mM LC, 5 mM LC, 1 mM HT, 10 mM HT, 1 mM T, and 10 mM T) and subjected to cryopreservation. Postthaw sperm motility was determined by IVOS system and sperm characteristics were assessed with fluorochromes and flow cytometry. The highest sperm motility and the highest percentage of viable sperm were in the HT1 group (P < 0.01 and P < 0.05) following cryopreservation. After thawing, we observed a higher percentage of sperm without apoptosis and membrane reorganization changes in the LC1 and T1 group when compared to the control (P < 0.05). There was a higher percentage of live sperm without lipid peroxidation (LPO) in all treatments (P < 0.01; P < 0.05), when compared to the control group. The percentage of sperm with high mitochondrial potential significantly increased with LC1, T1, and T10 (P < 0.05). Supplementation of the diluent with LC1, LC5, and T1 significantly (P < 0.05) reduced DNA susceptibility to fragmentation, compared to the control and HT1 groups. These results indicate that the addition of examined antioxidants improves the quality of cryopreserved chicken semen.
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Affiliation(s)
- Agnieszka Partyka
- Faculty of Veterinary Medicine, Department of Reproduction and Clinic of Farm Animals, Wroclaw University of Environmental and Life Sciences, Pl. Grunwaldzki 49, 50-366 Wroclaw, Poland
| | - Olga Rodak
- Faculty of Veterinary Medicine, Department of Reproduction and Clinic of Farm Animals, Wroclaw University of Environmental and Life Sciences, Pl. Grunwaldzki 49, 50-366 Wroclaw, Poland
| | - Joanna Bajzert
- Faculty of Veterinary Medicine, Department of Immunology, Pathophysiology and Prevention Veterinary, Wroclaw University of Environmental and Life Sciences, ul. C.K. Norwida 31, 50-375 Wroclaw, Poland
| | - Joanna Kochan
- Institute of Veterinary Sciences, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-159 Krakow, Poland
| | - Wojciech Niżański
- Faculty of Veterinary Medicine, Department of Reproduction and Clinic of Farm Animals, Wroclaw University of Environmental and Life Sciences, Pl. Grunwaldzki 49, 50-366 Wroclaw, Poland
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Quality of Pinzgau bull spermatozoa following different periods of cryostorage. ZYGOTE 2017; 25:215-221. [PMID: 28274295 DOI: 10.1017/s0967199417000077] [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: 11/06/2022]
Abstract
The aim of this work was to examine the influence of cryostorage duration of Pinzgau bull's insemination doses (IDs) on some sperm traits. The IDs were frozen by a slow freezing method and stored in liquid nitrogen for different periods: less than 8 years (group 1), 8-13 years (group 2) and 14-18 years (group 3). Motility (CASA), pathological sperm rate (Giemsa staining), apoptotic (Yo-Pro-1-positive) and necrotic (propidium iodide-positive) cell occurrence and fertilizing ability (penetration/fertilization test) of spermatozoa were evaluated post-thaw. The average post-thaw sperm motility in all examined groups was over 40%. No significant influence of storage length either on the sperm total motility or progressive movement was revealed. In each tested group the average rate of malformed spermatozoa did not exceed 20%. No effect of cryostorage length on the occurrence of apoptotic or necrotic sperm was noted. Similarly, penetrating/fertilizing ability of sperm did not differ among the groups, excepting differences in the rate of pronuclei (PN) formation. In group 1, 72.9% of eggs showed two visible PN following 20 h incubation with sperm, whilst in groups 2 and 3 only 67 and 54.5% of zygotes, respectively, had both PN at this time. These results revealed no influence of storage time on the bull spermatozoa in all parameters excepting the rate of PN formation. As high inter-male variability was observed in the susceptibility of bull sperm to cryostorage, individual differences should be taken into account when semen from individual bulls is to be stored for a long time.
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A new media without animal component for sperm cryopreservation: motility and various attributes affecting paternal contribution of sperm. J Assist Reprod Genet 2017; 34:647-657. [PMID: 28281145 DOI: 10.1007/s10815-017-0888-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/27/2017] [Indexed: 10/20/2022] Open
Abstract
PURPOSE Our aim was the development of a safe sperm cryopreservation New Media (NM), composed of consistent and reproducible components devoid of any animal origin, and evaluation of NM in terms of its effect on sperm structure and function as compared to regularly used yolk media (TYM) (Irvine Scientific). METHODS We evaluated patient semen samples and cryopreserved them in duplicates in either NM or TYM. The samples were cryopreserved for either a short term of 1 week or long term of 1 month prior to thawing. The parameters investigated include sperm motility via computer-assisted semen analysis (CASA), sperm concentration, and sperm biomarkers that promote paternal contribution of spermatozoa to fertilization including hyaluronic acid binding, chromatin maturity, apoptotic markers, cytoplasmic retention, and sperm DNA integrity. RESULTS As compared to TYM, NM was equally capable of sperm cryopreservation with both short-term and long-term storage in media, and after freeze-thaw and gradient processing of sperm. HA binding of sperm was comparable post thaw in both NM and yolk media. There are also no differences observed between the samples cryopreserved in NM or TYM in terms of their aniline blue staining, CK immunocytochemistry, caspase 3 immunostaining, or DNA nick translation. CONCLUSIONS NM has the advantage of being xeno-free, yet in preservation of sperm motility and other sperm attributes, the NM is as effective as the TYM.
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Isachenko V, Sanchez R, Mallmann P, Rahimi G, Isachenko E. Chapter 6 Technology of Aseptic Cryoprotectant-Free Vitrification of Human ICSI Spermatozoa. Methods Mol Biol 2017; 1568:79-84. [PMID: 28421490 DOI: 10.1007/978-1-4939-6828-2_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The aim of this chapter was to describe the standardized aseptic technology of permeable cryoprotectant-free vitrification of human spermatozoa in capillaries (for ICSI or IVF in microvolume). Spermatozoa, vitrified by this technology, are free from seminal plasma owing to swim-up procedure preceding vitrification and are free from permeable cryoprotectants. They are ready for further use immediately after warming without any additional treatment.
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Affiliation(s)
- Vladimir Isachenko
- Department of Obsterics and Gynecology, Medical Faculty, University Maternal Hospital, Cologne University, Kerpener Str 34, 50931, Cologne, Germany.
| | - Raul Sanchez
- Department of Preclinical Science, Facultad de Medicina, Center for Traslation Medicine, Universidad de la Frontera, Avenida Alemania, 0458, Temuco, Chile
| | - Peter Mallmann
- Department of Obsterics and Gynecology, Medical Faculty, University Maternal Hospital, Cologne University, Kerpener Str 34, 50931, Cologne, Germany
| | - Gohar Rahimi
- Department of Obsterics and Gynecology, Medical Faculty, University Maternal Hospital, Cologne University, Kerpener Str 34, 50931, Cologne, Germany
| | - Evgenia Isachenko
- Department of Obsterics and Gynecology, Medical Faculty, University Maternal Hospital, Cologne University, Kerpener Str 34, 50931, Cologne, Germany
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Michailidou-Ahmed C, Sharpe AA, Burrell EV, Blower JA, Potdar N. HBA score in relation to donor semen profiles and live birth rates: a preliminary study. HUM FERTIL 2016; 19:289-298. [PMID: 27819492 DOI: 10.1080/14647273.2016.1241433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We sought to determine whether sperm donor selection could be improved by using the hyaluronan binding assay (HBA) score to predict live birth rates (LBRs) in donor insemination treatments. Thirty donor samples were included: five fresh samples to assess whether HBA score is affected by cryopreservation and 25 frozen samples from donors whose sperm gave rise to known live births, divided into three groups, with success rates ≥50%, <50-33% and <33%, to examine whether HBA score correlates with LBRs. Correlations with semen analysis parameters, as well as donor demographic factors, known causes of patient subfertility and/or the type of treatment provided were also assessed. There was no significant difference in the mean HBA score pre- and post-cryopreservation (p = 0.998) nor in the HBA score of the three different outcome groups (p = 0.89). HBA score was not significantly affected by other semen analysis parameters (r2=0.394, p = 0.127) or any of the other examined factors. This was the first study to investigate HBA score for cryopreserved donor samples with known LBRs. HBA score was not correlated with LBRs in this small pilot study. Larger studies are required to validate HBA score as a tool for sperm donor selection and predictor of LBRs.
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Affiliation(s)
| | - A A Sharpe
- a Leicester Fertility Centre , Leicester , UK
| | - E V Burrell
- a Leicester Fertility Centre , Leicester , UK
| | - J A Blower
- a Leicester Fertility Centre , Leicester , UK
| | - N Potdar
- a Leicester Fertility Centre , Leicester , UK
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Abstract
Recent years have witnessed marked improvement in cytotoxic treatments with a parallel increase in patient survival. Despite efforts done to minimize long-term side effects of these treatment regimens, it is estimated that 40% of survivors of pediatric cancer will suffer from those. Some will be mild whereas others such as impaired fertility will be a heavy load on parents׳ expectations and patient׳s quality of life. Gonadal damage and severe loss of function is not a rare condition among children cured for cancer. Despite the young age of those patients, methods exist to try to reduce gonadal insult or to preserve gonadal function. Some of them are well studied and controlled; others are more experimental with encouraging results so far. This article aims to summarize all the procedures that can be offered to young patients treated for cancer in order to protect, as possible, their fertility potential.
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Affiliation(s)
- Raffoul Lara
- Department of Pediatric Surgery, APHP, Necker Enfants Malades Hospital, Paris, France
| | - Capito Carmen
- Department of Pediatric Surgery, APHP, Necker Enfants Malades Hospital, Paris, France
| | - Sarnacki Sabine
- Department of Pediatric Surgery, APHP, Necker Enfants Malades Hospital, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Paris, France.
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43
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Evaluation of the Efficiency of Two Different Freezing Media and Two Different Protocols to Preserve Human Spermatozoa from Cryoinjury. Int J Reprod Med 2016; 2016:6059757. [PMID: 27529078 PMCID: PMC4977390 DOI: 10.1155/2016/6059757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 06/21/2016] [Indexed: 11/18/2022] Open
Abstract
It is universally recognized that cryopreservation impairs sperm quality. In order to improve postthawing sperm survival and motility, media of different composition and different protocols have been proposed. However, no clear evidence is available to understand which are the most efficient protocol and medium for sperm cryopreservation. The present study evaluates the efficiency of two different cryopreservation protocols and two common freezing media (FM) containing different cryoprotectants (CPs), TEST Yolk Buffer (TYB) and Sperm Freeze (SF), to preserve human sperm quality. Our data suggest that TYB is better than SF both in terms of postthaw viability and in terms of progressive motility, while the direct addition of FM to the sperm sample resulted in the most efficient protocol in terms of postthaw viability but not in terms of progressive motility.
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44
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Amidi F, Pazhohan A, Shabani Nashtaei M, Khodarahmian M, Nekoonam S. The role of antioxidants in sperm freezing: a review. Cell Tissue Bank 2016; 17:745-756. [DOI: 10.1007/s10561-016-9566-5] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 06/17/2016] [Indexed: 12/13/2022]
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Castro LS, Hamilton TRS, Mendes CM, Nichi M, Barnabe VH, Visintin JA, Assumpção MEOA. Sperm cryodamage occurs after rapid freezing phase: flow cytometry approach and antioxidant enzymes activity at different stages of cryopreservation. J Anim Sci Biotechnol 2016; 7:17. [PMID: 26949533 PMCID: PMC4779270 DOI: 10.1186/s40104-016-0076-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 02/22/2016] [Indexed: 02/08/2023] Open
Abstract
Background In order to improve the efficiency of bovine sperm cryopreservation process, it is important to understand how spermatozoa respond to differences in temperature as well as the ability to recover its own metabolism. The combination between flow cytometry approach and antioxidant enzymes activity allows a more sensible evaluation of sperm cell during cryopreservation. The aim of this study was to evaluate sperm attributes and antioxidant enzymes activity during different stages of cryopreservation process. Semen samples from Holstein bulls (n = 4) were separated in 3 treatments: fresh (37 °C); cooled (5 °C); and thawed. Evaluation occurred at 0 h and 2 h after incubation. Membrane integrity, mitochondrial membrane potential (MMP) and DNA damages were evaluated by flow cytometry; activities of antioxidant enzymes such as catalase, superoxide dismutase and gluthatione peroxidase were measured by spectrofotometry. Results There was an increase in the percentage of sperm with DNA damage in the thawed group, compared to fresh and cooled, and for 2 hs of incubation when compared to 0 h. Considering MMP, there was an increase in the percentage of cells with medium potential in thawed group when compared to fresh and cooled groups. Opposingly, a decrease was observed in the thawed group considering high mitochondrial potential. Also in the thawed group, there was an increase on cells with damaged acrosome and membrane when compared to fresh and cooled groups. Significant correlations were found between antioxidant enzymes activity and membrane or mitochondrial parameters. Conclusion Based on our results, we conclude that cryopreservation affects cellular and DNA integrity and that the critical moment is when sperm cells are exposed to freezing temperature. Also, our study indicates that intracellular antioxidant machinery (SOD and GPX enzymes) is not enough to control cryodamage.
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Affiliation(s)
- L S Castro
- Laboratory of Spermatozoa Biology, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - T R S Hamilton
- Laboratory of Spermatozoa Biology, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - C M Mendes
- Laboratory of Spermatozoa Biology, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil ; Laboratory of In Vitro Fertilization, Cloning and Animal Transgenesis, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - M Nichi
- Laboratory of Andrology. Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - V H Barnabe
- Laboratory of Andrology. Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - J A Visintin
- Laboratory of Spermatozoa Biology, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil ; Laboratory of In Vitro Fertilization, Cloning and Animal Transgenesis, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - M E O A Assumpção
- Laboratory of Spermatozoa Biology, Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
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Yang CH, Wu TW, Cheng FP, Wang JH, Wu JT. Effects of different cryoprotectants and freezing methods on post-thaw boar semen quality. Reprod Biol 2016; 16:41-6. [PMID: 26952752 DOI: 10.1016/j.repbio.2015.12.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 12/21/2015] [Accepted: 12/30/2015] [Indexed: 11/12/2022]
Abstract
The current study aimed to investigate the effects of different concentrations of glycerol (0%, 1%, 2%, 3%, and 5%) and dimethylacetamide (DMA: 0%, 1%, 3%, and 5%) on post-sperm quality characteristics following semen freezing in dry ice (D) or liquid nitrogen (N). Semen was collected from Duroc boars and was allocated to 32 treatment groups for cryopreservation. Analysis of post-thaw semen quality and fertility after artificial insemination (AI) was used to examine the combinatorial effects of different treatments. The best scores for post-thaw sperm motility, sperm viability, and sperm acrosomal integrity were observed in semen frozen in: (a) dry ice in the presence of 5% glycerol and no DMA (16D-treatment); (b) dry ice in the presence of 3% glycerol and no DMA (9D-treatment); and (c) liquid nitrogen in the presence of 3% glycerol and 1% DMA (10N-treatment), with no significant difference observed among these three treatments. The farrowing rates after AI with post-thawed semen after 9D- and 10N-treatments were 33% and 50%, respectively. To summarize, the results of the present study indicated that the freezing extender containing 3% glycerol in combination with the straw-freezing method using dry ice produced the best post-thaw quality parameters of boar semen. Combinations of glycerol and DMA did not enhance the cryosurvival of boar spermatozoa.
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Affiliation(s)
- Chung-Hsun Yang
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University, 580 Xinmin Road, Chiayi City, Taiwan
| | - Ting-Wen Wu
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University, 580 Xinmin Road, Chiayi City, Taiwan
| | - Feng-Pang Cheng
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, 250 Kuo Kuang Road, Taichung, Taiwan
| | - Jiann-Hsiung Wang
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University, 580 Xinmin Road, Chiayi City, Taiwan
| | - Jui-Te Wu
- Department of Veterinary Medicine, College of Agriculture, National Chiayi University, 580 Xinmin Road, Chiayi City, Taiwan; Animal Teaching Hospital, College of Agriculture, National Chiayi University, 580 Xinmin Road, Chiayi City, Taiwan.
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Jerez R, González N, Olaciregui M, Luño V, Blas ID, Gil L. Use of soy milk combined with different cryoprotectants for the ram semen cryopreservation. Small Rumin Res 2016. [DOI: 10.1016/j.smallrumres.2015.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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48
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Khodaei H, Chamani M, Mahdavi B, Akhondi AA. Effects of Adding Sodium Nitroprusside to Semen Diluents on Motility, Viability and Lipid Peroxidation of Sperm in Holstein Bulls. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2015; 9:521-6. [PMID: 26985340 PMCID: PMC4793173 DOI: 10.22074/ijfs.2015.4611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 11/29/2014] [Indexed: 11/30/2022]
Abstract
Background Nitric oxide (NO) that plays important role in all sexual activities of animals
is made from the amino acid L-arginine by the enzymatic action of NO synthase (NOS). NO
makes a band with sulfur-iron complexes, but due to production of steroid sexual hormones
related to the enzymes involved in this complex, NO can change the activity of these enzymes.
NO affects many cells including vein endothelial cells, macrophages and mast cells. These
cells are also found in Leydig cells; therefore, they are important source of NO in testis tissue.
Therefore, minimizing damages to sperm at the time of freezing thawing process are really important. The aim of this study was to determine the appropriate NO concentration to be added
to the freezing extender to improve the quality of thawed sperm. Materials and Methods In this experimental randomized study, sperms of four Holstein
bulls with an average age of 4 were collected twice a week for 3 weeks. They received sodium nitroprusside (SNP) in concentrations of 0, 10, 50 and 100 nmol/ml. Data analysis
was performed using the special issue and static (SAS) 98 software. Also, mean comparison was done using Duncan’s multiple ranges test (P<0.05).This research was conducted
at the laboratory of Science and Research Branch, Islamic Azad University, Tehran at
spring and summer of 2013. Results All concentrations of SNP used was found to increase motility and viability of spermatozoa at 1, 2 and 3 hours after thawing, significantly (P<0.05), but there was no significant
difference at zero time. Different concentrations of SNP reduced the membrane lipid peroxidation level of sperm and increased acrosome membranes integrity, implying that SNP generally
improved samples membranes, especially in 50 and 100 nmol/ml concentrations. Conclusion According to the obtained results, addition of SNP to semen diluents increases motility and viability of spermatozoa. Also, it reduces membrane lipid peroxidation level that leads to improved sperm function.
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Affiliation(s)
- Hamidreza Khodaei
- Depatment of Animal Science, Golpayegan Branch, Islamic Azad University, Golpayegan, Iran
| | - Mohammad Chamani
- Department of Animal Physiology, Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Behnaz Mahdavi
- Depatment of Animal Science, Golpayegan Branch, Islamic Azad University, Golpayegan, Iran
| | - Ali Asghar Akhondi
- Department of Animal Physiology, Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Protective effects of l-carnitine on astheno- and normozoospermic human semen samples during cryopreservation. ZYGOTE 2015; 24:293-300. [DOI: 10.1017/s0967199415000180] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
SummaryThis study was conducted to determine the effects of l-carnitine (LC), as an antioxidant, in preventing spermatozoa damage during the freezing–thawing process in both astheno- and normozoospermic human semen samples. Seventy semen samples (37 asthenozoospermic and 33 normozoospermic) were involved in this study. Cryopreservation medium supplemented with 1.0 g/l LC was mixed with semen at a ratio of 1:1 (v/v). Controls were cryopreserved with freezing medium only. Assessment of motility, viability (VIA), mitochondrial membrane potential (MMP) and DNA fragmentation index (DFI) were performed on aliquots of fresh semen, frozen–thawed control and frozen–thawed LC treated samples. Supplementation of the cryopreservation medium with LC induced a significant improvement in post-thaw sperm parameters in both the asthenozoospermic and normozoospermic semen samples, compared with those of the control, regarding sperm fast forward motility, forward motility, total motility and VIA. LC showed better protective effects towards asthenozoospermia for DFI (F = 115.85, P < 0.01) and VIA (F = 67.14, P < 0.01) than did normozoospermic semen samples. We conclude that supplementation with LC prior to the cryopreservation process reduced spermatozoa cryodamage in both asthenozoospermic and normozoospermic semen samples. LC had better protective effects for asthenozoospermic human semen samples. Future research should focus on the molecular mechanism for and the different protective effects of LC between asthenozoospermic and normozoospermic semen samples during cryopreservation.
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Shiomi HH, Pinho RO, Lima D, Siqueira JB, Santos M, Costa EV, Lopes PS, Guimarães S, Guimarães JD. Cryopreservation of Piau-Breed Wild Boar Sperm: Assessment of Cooling Curves and Centrifugation Regimes. Reprod Domest Anim 2015; 50:545-53. [PMID: 25865710 DOI: 10.1111/rda.12520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/16/2015] [Indexed: 11/29/2022]
Abstract
This study aimed to assess the effects of different cooling curves and centrifugation regimes used in cryopreservation protocols on the post-thaw viability of Piau-breed wild boar (Sus scrofa) sperm using in vitro assessment tests. Two centrifugations (800 g for 10 min and 2400 g for 3 min) and two cooling curves (conventional cooling using nitrogen vapour - freezing 1 and automated cooling using a programmed freezing machine - freezing 2) were tested. Therefore, the treatments were divided into M3 - centrifugation at 2400 g for 3 min and freezing 2; M10 - centrifugation at 800 g for 10 min and freezing 2; R3 - centrifugation at 2400 g for 3 min and freezing 1; and R10 - centrifugation at 800 g for 10 min and freezing 1. No significant differences (p > 0.05) between treatments occurred post-thawing regarding the total sperm motility means recorded. The mean values of the different treatments were not different from each other regarding the supravital staining (SV), hypo-osmotic test (HO), sperm-egg binding assay or sperm morphology. This study showed that both the cooling curve and the centrifugation regime affected the quality of post-thaw sperm, and centrifugation for shorter times and cooling curves using automated cooling are the most suitable for minimizing sperm injury.
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Affiliation(s)
- H H Shiomi
- Federal University of Viçosa (UFV), Viçosa, Brazil
| | - R O Pinho
- Federal University of Viçosa (UFV), Viçosa, Brazil
| | - Dma Lima
- Federal University of Viçosa (UFV), Viçosa, Brazil
| | - J B Siqueira
- Institute of Agricultural Science, Federal University of Vales do Jequitinhonha and Mucuri (UFVJM), Unaí, Brazil
| | - McR Santos
- Federal University of Viçosa (UFV), Viçosa, Brazil
| | - E V Costa
- Federal University of Viçosa (UFV), Viçosa, Brazil
| | - P S Lopes
- Federal University of Viçosa (UFV), Viçosa, Brazil
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