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Dabizzi S, Calamai C, Degl'Innocenti S, Boni L, Vignozzi L, Maggi M, Baldi E, Muratori M. Tip-microVapour Fast Freezing: A novel easy method for cryopreserving severe oligozoospermic samples. Andrology 2024; 12:862-869. [PMID: 37706229 DOI: 10.1111/andr.13531] [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: 03/07/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND Sperm cryopreservation is an important procedure for oligozoospermic subjects at risk of azoospermia and after surgical recovery of spermatozoa in non-obstructive azoospermic men. Conventional procedures for sperm cryopreservation might be, however, not suitable for samples with a very low sperm number. OBJECTIVES In this pilot study, we investigated the recoveries of sperm motility and viability in severe oligozoospermic subjects (n = 39) after cryopreservation with a tip-microVapour Fast Freezing, a procedure previously developed by our group for men with good semen quality. Sperm DNA fragmentation was also evaluated in a second group of oligozoospermic samples (n = 16). MATERIALS AND METHODS We used a Vapour Fast Freezing procedure using 10 μL tips as carrier, and Test Yolk Buffer as freezing medium (tip-microVapour Fast Freezing). In a subset of samples (n = 22), we compared recovery of motility and viability as obtained with tip-microVapour Fast Freezing and with a Vapour Fast Freezing procedure using 500 μL straws. Sperm DNA fragmentation was evaluated by the sperm chromatin dispersion test. RESULTS We found a recovery rate (median [interquartile range]) of 0.29 (0.13-0.41) for progressive motility, 0.30 (0.21-0.52) for total motility and 0.48 (0.29-0.60) for viability. Interestingly, we observed that samples with the poorest motility were apparently less damaged by freezing/thawing. In a subset of samples (n = 22), we directly compared values of viability, progressive motility and total motility by freezing/thawing with tip-microVapour Fast Freezing and Vapour Fast Freezing conducted with 500 μL straws. We found much better values of all sperm parameters in samples after freezing/thawing with tip-microVapour Fast Freezing than with Vapour Fast Freezing in 500 μL straws: that is, progressive motility: 7.00 (3.00-8.50)% versus 2.00 (0.00-4.25)%, p < 0.001; total motility: 12.00 (8.00-16.25)% versus 6.50 (1.00-9.25)%, p < 0.001; viability: 29.75 (23.75-45.25) versus 22.50 (13.75-28.13), p < 0.001, respectively. In the second group of oligozoospermic samples, we found that tip-microVapour Fast Freezing produced lower levels of sperm DNA fragmentation than straws (33.00 [19.75-36.00]% vs. 36.00 [22.75-41.87]%, p < 0.001). DISCUSSION AND CONCLUSION Tip-microVapour Fast Freezing appears to be a very promising method to cryopreserve semen samples from severe oligozoospermic patients.
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Affiliation(s)
- Sara Dabizzi
- Unit of Andrology, Women's Endocrinology and Gender Incongruence, Centre for the Prevention, Diagnosis and Treatment of Infertility, Azienda Ospedaliera Universitaria Careggi Hospital, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Costanza Calamai
- Unit of Andrology, Women's Endocrinology and Gender Incongruence, Centre for the Prevention, Diagnosis and Treatment of Infertility, Azienda Ospedaliera Universitaria Careggi Hospital, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
| | - Selene Degl'Innocenti
- Unit of Andrology, Women's Endocrinology and Gender Incongruence, Centre for the Prevention, Diagnosis and Treatment of Infertility, Azienda Ospedaliera Universitaria Careggi Hospital, Florence, Italy
| | - Luca Boni
- Unit of Clinical Epidemiology, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Linda Vignozzi
- Unit of Andrology, Women's Endocrinology and Gender Incongruence, Centre for the Prevention, Diagnosis and Treatment of Infertility, Azienda Ospedaliera Universitaria Careggi Hospital, Florence, Italy
- 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
- Unit of Endocrinology, Azienda Ospedaliera Universitaria Careggi Hospital, Florence, Italy
| | - Elisabetta Baldi
- Unit of Andrology, Women's Endocrinology and Gender Incongruence, Centre for the Prevention, Diagnosis and Treatment of Infertility, Azienda Ospedaliera Universitaria Careggi Hospital, Florence, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Monica Muratori
- Department of Experimental and Clinical Biomedical Sciences 'Mario Serio', University of Florence, Florence, Italy
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Jiang L, Kong F, Yao L, Zhang F, Wang S, Jin X, Tong X, Zhang S. A novel solution for freezing individual spermatozoa using a right angular cryopiece embedded in a grooved petri dish. Andrologia 2022; 54:e14619. [DOI: 10.1111/and.14619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 09/13/2022] [Accepted: 10/02/2022] [Indexed: 11/26/2022] Open
Affiliation(s)
- Ling‐Ying Jiang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
| | - Fei‐Fei Kong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
| | - Lv Yao
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Fu‐Xing Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Sha‐Sha Wang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Xiao‐Ying Jin
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
| | - Xiao‐Mei Tong
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
| | - Song‐Ying Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology Sir Run Run Shaw Hospital, Zhejiang University School of Medicine Hangzhou Zhejiang China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province Hangzhou Zhejiang China
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3
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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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Aydos K, Aydos OS. Sperm Selection Procedures for Optimizing the Outcome of ICSI in Patients with NOA. J Clin Med 2021; 10:jcm10122687. [PMID: 34207121 PMCID: PMC8234729 DOI: 10.3390/jcm10122687] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/13/2021] [Accepted: 06/16/2021] [Indexed: 12/19/2022] Open
Abstract
Retrieving spermatozoa from the testicles has been a great hope for patients with non-obstructive azoospermia (NOA), but relevant methods have not yet been developed to the level necessary to provide resolutions for all cases of NOA. Although performing testicular sperm extraction under microscopic magnification has increased sperm retrieval rates, in vitro selection and processing of quality sperm plays an essential role in the success of in vitro fertilization. Moreover, sperm cryopreservation is widely used in assisted reproductive technologies, whether for therapeutic purposes or for future fertility preservation. In recent years, there have been new developments using advanced technologies to freeze and preserve even very small numbers of sperm for which conventional techniques are inadequate. The present review provides an up-to-date summary of current strategies for maximizing sperm recovery from surgically obtained testicular samples and, as an extension, optimization of in vitro sperm processing techniques in the management of NOA.
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Affiliation(s)
- Kaan Aydos
- Department of Urology, Reproductive Health Research Center, School of Medicine, University of Ankara, 06230 Ankara, Turkey
- Correspondence: ; Tel.: +90-533-748-8995
| | - Oya Sena Aydos
- Department of Medical Biology, School of Medicine, University of Ankara, 06230 Ankara, Turkey;
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Auth CA, Hopkins BK. Nitrogen vapor immersion: An accessible alternative for honey bee (Apis mellifera L.) semen cryopreservation. Cryobiology 2021; 100:12-18. [PMID: 33895149 DOI: 10.1016/j.cryobiol.2021.04.006] [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: 02/10/2021] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 11/16/2022]
Abstract
Semen cryopreservation is a valuable conservation tool and is often used in livestock species to accelerate artificial selection of desirable traits. Recently, semen cryopreservation has been successfully introduced to honey bees, bolstering trait selection for breeders and aiding conservation efforts for threatened bee populations. Current cryopreservation methods use slow-programmable freezing to achieve long-term storage of honey bee germplasm. However, the equipment necessary for this method is costly and time consuming to use, making it less accessible to breeders and researchers. We tested two cost and time efficient alternatives to slow-programmable freezing, vitrification and vapor immersion using two freezing devices, the CryoLock and microdialysis tube. Semen was preserved in either 20, 40, or 60% dimethyl sulfoxide (Me2SO). The post-thaw sperm viability (% living sperm) and subjective motility (0-5 scale) of these techniques were compared to those of slow-programmable frozen semen and non-frozen controls. Semen frozen in microdialysis tubes produced higher motility and sperm viability than semen frozen with the CryoLock device. The same trend was observed between vapor immersion and vitrification, with vapor immersion proving superior. Vapor immersed semen dialyzed with 20% Me2SO produced statistically similar sperm motility (4 ± 0.41) and viability (73.51% ± 5.56%) to slow-programmable freezing (4.25 ± 0.25, 80.61% ± 4.20%) and the non-frozen control (4.5 ± 0.28, 93.39% ± 0.90%). Optimization of the dialysis process and freezing rate may further increase the post-thaw sperm quality. Nonetheless, these results show promise for an effective replacement to slow-programmable freezing that maintains high sperm quality while increasing accessibility.
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Affiliation(s)
- Connor Anthony Auth
- Department of Entomology, Washington State University, PO Box 646382, Pullman, WA, 99164-6382, USA.
| | - Brandon Kingsley Hopkins
- Department of Entomology, Washington State University, PO Box 646382, Pullman, WA, 99164-6382, USA.
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Gallichotte EN, Dobos KM, Ebel GD, Hagedorn M, Rasgon JL, Richardson JH, Stedman TT, Barfield JP. Towards a method for cryopreservation of mosquito vectors of human pathogens. Cryobiology 2021; 99:1-10. [PMID: 33556359 DOI: 10.1016/j.cryobiol.2021.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/23/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Mosquito-borne diseases are responsible for millions of human deaths every year, posing a massive burden on global public health. Mosquitoes transmit a variety of bacteria, parasites and viruses. Mosquito control efforts such as insecticide spraying can reduce mosquito populations, but they must be sustained in order to have long term impacts, can result in the evolution of insecticide resistance, are costly, and can have adverse human and environmental effects. Technological advances have allowed genetic manipulation of mosquitoes, including generation of those that are still susceptible to insecticides, which has greatly increased the number of mosquito strains and lines available to the scientific research community. This generates an associated challenge, because rearing and maintaining unique mosquito lines requires time, money and facilities, and long-term maintenance can lead to adaptation to specific laboratory conditions, resulting in mosquito lines that are distinct from their wild-type counterparts. Additionally, continuous rearing of transgenic lines can lead to loss of genetic markers, genes and/or phenotypes. Cryopreservation of valuable mosquito lines could help circumvent these limitations and allow researchers to reduce the cost of rearing multiple lines simultaneously, maintain low passage number transgenic mosquitoes, and bank lines not currently being used. Additionally, mosquito cryopreservation could allow researchers to access the same mosquito lines, limiting the impact of unique laboratory or field conditions. Successful cryopreservation of mosquitoes would expand the field of mosquito research and could ultimately lead to advances that would reduce the burden of mosquito-borne diseases, possibly through rear-and-release strategies to overcome mosquito insecticide resistance. Cryopreservation techniques have been developed for some insect groups, including but not limited to fruit flies, silkworms and other moth species, and honeybees. Recent advances within the cryopreservation field, along with success with other insects suggest that cryopreservation of mosquitoes may be a feasible method for preserving valuable scientific and public health resources. In this review, we will provide an overview of basic mosquito biology, the current state of and advances within insect cryopreservation, and a proposed approach toward cryopreservation of Anopheles stephensi mosquitoes.
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Affiliation(s)
- Emily N Gallichotte
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Karen M Dobos
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Gregory D Ebel
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Mary Hagedorn
- Smithsonian Conservation Biology Institute, Smithsonian Institution, Front Royal, VA, USA; Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI, USA
| | - Jason L Rasgon
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA; Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA, USA; Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA
| | | | | | - Jennifer P Barfield
- Department of Biomedical Sciences, Animal Reproduction and Biotechnology Laboratory, Colorado State University, Fort Collins, CO, USA.
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Tao Y, Sanger E, Saewu A, Leveille MC. Human sperm vitrification: the state of the art. Reprod Biol Endocrinol 2020; 18:17. [PMID: 32145746 PMCID: PMC7060631 DOI: 10.1186/s12958-020-00580-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/28/2020] [Indexed: 12/18/2022] Open
Abstract
Sperm cryopreservation has been widely used in assisted reproductive technology (ART) and has resulted in millions of live births. Two principal approaches have been adopted: conventional (slow) freezing and vitrification. As a traditional technique, slow freezing has been successfully employed and widely used at ART clinics whereas the latter, a process to solidify liquid into an amorphous or glassy state, may become a faster alternative method of sperm cryopreservation with significant benefits in regard to simple equipment and applicability to fertility centers. Sperm vitrification has its own limitations. Firstly, small volume of load is usually plunged to liquid nitrogen to achieve high cooling rate, which makes large volume sample cryopreservation less feasible. Secondly, direct contact with liquid nitrogen increases the potential risk of contamination. Recently, new carriers have been developed to facilitate improved control over the volume and speed, and new strategies have been implemented to minimize the contamination risk. In summary, although sperm vitrification has not yet been applied in routine sperm cryopreservation, its potential as a standard procedure is growing.
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Affiliation(s)
- Yong Tao
- Ottawa Fertility Center, 100-955 Green Valley Crescent, Ottawa, ON K2C 3V4 Canada
| | - Erika Sanger
- Ottawa Fertility Center, 100-955 Green Valley Crescent, Ottawa, ON K2C 3V4 Canada
| | - Arpornrad Saewu
- Ottawa Fertility Center, 100-955 Green Valley Crescent, Ottawa, ON K2C 3V4 Canada
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8
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Micro-quantity straw as a carrier for cryopreservation of oligozoospermic semen samples: Effects of storage times and cryoprotectant. Cryobiology 2019; 86:65-70. [DOI: 10.1016/j.cryobiol.2018.12.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/27/2018] [Accepted: 12/07/2018] [Indexed: 11/23/2022]
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Wang M, Wu Z, Hu Y, Wang Y, Tan Y, Xiang Y, Wang L, Jin L, Huang H. An adapted carrier for the cryopreservation of human testicular spermatozoa. Reprod Biomed Online 2018; 37:590-599. [PMID: 30366839 DOI: 10.1016/j.rbmo.2018.08.021] [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: 02/23/2018] [Revised: 08/28/2018] [Accepted: 08/30/2018] [Indexed: 12/01/2022]
Abstract
RESEARCH QUESTION Does the adapted carrier Cryoplus improve the quality of cryopreserved spermatozoa compared with the use of conventional containers, and what is the effect of the adapted carrier on clinical outcomes? DESIGN Semen samples from 27 cases of oligozoospermia were used to investigate whether the adapted carrier improved cryopreserved sperm quality compared with the use of 0.25-ml straws and 2-ml cryogenic vials. Thirty testicular sperm samples were used to study the quality of testicular spermatozoa cryopreserved in the adapted carrier. The retrospective study included a further 104 men with azoospermia to investigate the clinical outcomes of testicular spermatozoa cryopreserved with the adapted carriers. Men with mostly obstructive azoospermia were included in this study. RESULTS The adapted carrier improved cryopreserved spermatozoa motility of semen samples compared with 2-ml cryogenic vials but not compared with 0.25-ml straws. No differences were found in cryopreserved sperm DNA fragmentation among the three carriers. Fertilization and good-quality embryo rates were similar in ICSI cycles using fresh or cryopreserved testicular spermatozoa. Additionally, no difference was evident between frozen-thawed embryo transfer cycles using fresh or cryopreserved testicular spermatozoa in clinical pregnancy, implantation, miscarriage, live birth rates or birth weight. CONCLUSIONS The adapted carrier improved the cryopreserved sperm motility compared with the effects of 2-ml cryogenic vials. The outcomes of intracytoplasmic sperm injection and frozen-thawed embryo transfer outcomes indicate that testicular spermatozoa cryopreserved using the adapted carrier is not inferior to fresh testicular spermatozoa. The use of the adapted carrier for cryopreserving human testicular spermatozoa especially from obstructive azoospermia is simple and effective.
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Affiliation(s)
- Min Wang
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China..
| | - Zhengmu Wu
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yuting Hu
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yong Wang
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yajing Tan
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yuqian Xiang
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Li Wang
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Li Jin
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Hefeng Huang
- Reproductive Medical Center, the International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
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Yu Z, Wei Z, Yang J, Wang T, Jiang H, Li H, Tang Z, Wang S, Liu J. Comparison of intracytoplasmic sperm injection outcome with fresh versus frozen-thawed testicular sperm in men with nonobstructive azoospermia: a systematic review and meta-analysis. J Assist Reprod Genet 2018; 35:1247-1257. [PMID: 29785532 PMCID: PMC6063825 DOI: 10.1007/s10815-018-1206-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 05/09/2018] [Indexed: 01/29/2023] Open
Abstract
PURPOSE The purpose of the study is to explore testicular sperm cryopreservation in patients with nonobstructive azoospermia (NOA) whether affect the outcome of subsequent intracytoplasmic sperm injection (ICSI). METHODS A systematic review and meta-analysis was conducted by searching the MEDLINE and EMBASE databases for relevant published studies in English language (1997-2017). Studies were eligible if they included the comparison of using fresh and frozen-thawed testicular sperm followed by ICSI. Two reviewers independently performed data extraction, quality assessment and assessed the risk of bias. The overall summary risk estimated the number of events. A meta-analysis was conducted using a random effects or fixed effects model analysis according to the test of heterogeneity. RESULTS A total of 17 studies with 1,261 ICSI cycles were identified. Analysis of the present data showed no difference in the fertilization outcome when comparing fresh versus frozen-thawed spermatozoa (RR = 1.02, 95% CI 0.86-1.09). Similarly, no difference in CR (RR = 1.01, 95% CI 0.96-1.05), good embryo rate (RR = 1.01, 95% CI 0.95-1.09), and IR (RR = 0.93, 95% CI 0.66-1.30) was observed if the spermatozoa was fresh or frozen-thawed. Finally, no difference in CPR or LBR was noted when using fresh or frozen-thawed cycles were analyzed separately (RR = 1.03, 95% CI 0.86-1.24; RR 1.11, 95% CI 0.88-1.41, respectively). CONCLUSIONS In men with NOA, the ICSI outcome is not affected by whether the retrieved testicular sperm is fresh or frozen. Sperm cryopreservation ought to be considered in every surgical sperm retrieval case, which remain feasible even in patients with few testicular sperm retrieved.
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Affiliation(s)
- Zhe Yu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhewen Wei
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Tao Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongyang Jiang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Hosseini A, Khalili MA, Talebi AR, Agha-Rahimi A, Ghasemi-Esmailabad S, Woodward B, Yari N. Cryopreservation of Low Number of Human Spermatozoa; Which is Better: Vapor Phase or Direct Submerging in Liquid Nitrogen? HUM FERTIL 2018; 22:126-132. [DOI: 10.1080/14647273.2018.1456681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Akram Hosseini
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Reza Talebi
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Azam Agha-Rahimi
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Saeed Ghasemi-Esmailabad
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | - Nahid Yari
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Chen H, Feng G, Zhang B, Zhou H, Wang C, Shu J, Gan X, Lin R, Huang D, Huang Y. A new insight into male fertility preservation for patients with completely immotile spermatozoa. Reprod Biol Endocrinol 2017; 15:74. [PMID: 28923067 PMCID: PMC5604404 DOI: 10.1186/s12958-017-0294-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/12/2017] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Sperm cryopreservation is the most effective method to preserve male fertility but this is normally used for motile spermatozoa. Thus, only motile spermatozoa are used for cryopreservation in most reproductive medicine centers worldwide. The immotile spermatozoa from some problematic patients are usually discarded, resulting in a missed opportunity of sterility cryopreservation for future assisted reproductive treatments. Many studies have shown that successful fertilization can be obtained after selection of viable sperm from the completely immotile spermatozoa before ICSI. Whether the completely immotile spermatozoa are worth of freezing has not been realized The aim of this study is to explore the clinical value of cryopreservation of immotile spermatozoa. METHODS Completely immotile spermatozoa were collected and frozen, and subsequently viable but immotile frozen-thawed spermatozoa were selected by laser plus for ICSI. Main outcomes included spermatozoa survival index, fertilization rate and good quality embryo rate. RESULTS After identification by laser, the fresh samples of spermatozoa presented with a mean survival rate of 54.86% and 26.05%, and this was reduced to 44.13% and 18.13% in frozen-thawed spermatozoa samples, which showed a frozen-thawed spermatozoa survival index of 0.80 and 0.70 in the testicular and ejaculate sperm, respectively. There were no statistically differences in fertilization rate (80% vs80.51%, 75.00% vs 81.48%), cleavage rate (95.45% vs 98.95%, 100.00% vs 95.45%) and good quality embryo rate (40.48% vs 52.13%, 33.33%vs38.10%) between the frozen-thawed immotile spermatozoa group and the routine fresh immotile spermatozoa ICSI group in both testicular and ejaculate sperm, respectively. CONCLUSIONS The results of the study show that completely immotile spermatozoa can be frozen in order to preserve male fertility as long as viable spermatozoa are present. This procedure provides a further possibility for fertility preservation for patients with completely immotile spermatozoa.
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Affiliation(s)
- Huanhua Chen
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Guixue Feng
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Bo Zhang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Hong Zhou
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Caizhu Wang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Jinhui Shu
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Xianyou Gan
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Ruoyun Lin
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Dongmei Huang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
| | - Yingqin Huang
- Reproductive Medicine Center, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530003 China
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Sonigo C, Sermondade N, Benard J, Benoit A, Shore J, Sifer C, Grynberg M. The past, present and future of fertility preservation in cancer patients. Future Oncol 2015; 11:2667-2680. [DOI: 10.2217/fon.15.152] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Fertility preservation strategies have been developed for men and women whose fertility is compromised for medical reasons, especially in case of cancer therapy. At present, many reliable options for preserving fertility are available. However, a part of these fertility preservation methods, despite being promising, are still considered experimental. Nevertheless, there are still situations where no methods can be offered. Remarkable scientific progress is currently underway to improve available techniques and to develop new technologies to solve problems with current fertility strategies. These new options may drastically change reproductive options for young patients facing germ cell loss and hence sterility. Therefore, oncofertility counseling by a specialist is recommended for all young cancer patients having to undergo treatment that may reduce fertility potential.
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Affiliation(s)
- Charlotte Sonigo
- Department of Reproductive Medicine, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
- University Paris XIII, 93000 Bobigny, France
- Unité Inserm U1185, Université Paris-Sud, Le Kremlin Bicêtre, France
| | - Nathalie Sermondade
- Department of Cytogenetic & Reproductive Biology, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
| | - Julie Benard
- Department of Reproductive Medicine, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
- University Paris XIII, 93000 Bobigny, France
| | - Alexandra Benoit
- Department of Reproductive Medicine, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
| | - Joanna Shore
- Department of Obstetrics & Gynecology, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
| | - Christophe Sifer
- Department of Cytogenetic & Reproductive Biology, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
| | - Michael Grynberg
- Department of Reproductive Medicine, Hôpital Jean-Verdier, Avenue du 14 Juillet, 93140 Bondy, France
- University Paris XIII, 93000 Bobigny, France
- Unité Inserm U1133, Université Paris-Diderot, 75013 Paris, France
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