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Hai E, Li B, Zhang J, Zhang J. Sperm freezing damage: the role of regulated cell death. Cell Death Discov 2024; 10:239. [PMID: 38762505 PMCID: PMC11102515 DOI: 10.1038/s41420-024-02013-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 05/04/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024] Open
Abstract
Substantial progress in research on sperm cryopreservation has occurred since the twentieth century, especially focusing on improving sperm freezing procedures and optimizing semen extenders. However, the cellular biological mechanisms of sperm freezing damage are still unclear, which greatly restricts the promotion and development of sperm cryopreservation. An essential component of sperm freezing damage is the occurrence of cell death. Considering the existence of multiple types of cell death pathways, this review discusses connections between characteristics of regulated cell death (e.g., apoptosis and ferroptosis), and accidental cell death (e.g., intracellular ice crystals) with sperm freezing damage and explores possible future research directions in this field.
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Affiliation(s)
- Erhan Hai
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, Inner Mongolia, China
| | - Boyuan Li
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, Inner Mongolia, China
| | - Jian Zhang
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, Inner Mongolia, China
| | - Jiaxin Zhang
- Inner Mongolia Key Laboratory of Sheep & Goat Genetics Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, 010018, Inner Mongolia, China.
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2
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Zanin M, Varela Junior AS, Bonel Acosta I, Anastacio Da Silva E, Gehrcke MI, Corcini CD. Acute exposure to isoflurane impairs sperm parameters in mice. Drug Chem Toxicol 2024; 47:330-337. [PMID: 36756678 DOI: 10.1080/01480545.2023.2176513] [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: 12/11/2022] [Revised: 01/22/2023] [Accepted: 01/28/2023] [Indexed: 02/10/2023]
Abstract
Isoflurane, an inhalational anesthetic from the halogenated group, has been increasingly used in the medical and scientific fields. Due to its characteristics, it is capable of inducing anesthesia quickly and quietly; however, the adverse effects resulting from its use have not yet been fully elucidated, especially with regard to reproductive aspects. Considering its common use in research laboratories, whether for performing surgical procedures or for prior exposure to euthanasia, knowledge about its interference in sperm parameters of experimental models characterizes an important study goal. The aim of the present study was to determine the interference of acute exposure to isoflurane on the sperm quality of mice, both immediately previous to euthanasia and in later evaluation, twenty days after a single anesthetic exposure. Our results demonstrate that acute anesthetic exposure reduces sperm motility and is responsible for the formation of damaged sperm cells that are prone to apoptosis, which may affect the outcome of reproductive experiments even 20 days after exposure.
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Affiliation(s)
- Marina Zanin
- Program in Physiological Sciences, Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, Brazil
- Faculty of Veterinary Medicine, RAC-Center for Teaching and Research in Animal Reproduction, Federal University of Pelotas, Pelotas, Brazil
| | - Antonio Sergio Varela Junior
- Faculty of Veterinary Medicine, RAC-Center for Teaching and Research in Animal Reproduction, Federal University of Pelotas, Pelotas, Brazil
- Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, Brazil
| | - Izani Bonel Acosta
- Faculty of Veterinary Medicine, RAC-Center for Teaching and Research in Animal Reproduction, Federal University of Pelotas, Pelotas, Brazil
- Faculty of Veterinary Medicine, Federal University of Pelotas, University Campus, Pelotas, Brazil
| | - Edenara Anastacio Da Silva
- Faculty of Veterinary Medicine, RAC-Center for Teaching and Research in Animal Reproduction, Federal University of Pelotas, Pelotas, Brazil
- Faculty of Veterinary Medicine, Federal University of Pelotas, University Campus, Pelotas, Brazil
| | - Martielo Ivan Gehrcke
- Faculty of Veterinary Medicine, Federal University of Pelotas, University Campus, Pelotas, Brazil
| | - Carine Dahl Corcini
- Faculty of Veterinary Medicine, RAC-Center for Teaching and Research in Animal Reproduction, Federal University of Pelotas, Pelotas, Brazil
- Institute of Biological Sciences, Federal University of Rio Grande, Rio Grande, Brazil
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3
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Abdelnour SA, Khalil WA, Khalifa NE, Khalil FMA, Hassan MAE. L-Proline: A Promising Tool for Boosting Cryotolerance and Fertilizing Ability of Cryopreserved Sperm in Animals. Anim Reprod Sci 2024; 263:107429. [PMID: 38382197 DOI: 10.1016/j.anireprosci.2024.107429] [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: 10/30/2023] [Revised: 01/11/2024] [Accepted: 02/06/2024] [Indexed: 02/23/2024]
Abstract
Sperm cryopreservation technology significantly contributes to the safeguarding of genetic resources, particularly for endangered species, and supports the use of artificial insemination in domestic animals. Therefore, cryopreservation can negatively affect sperm health and function leading to reduce the freezing ability and fertility potential. Therefore, it is essential to prioritize the improvement of cryotolerance in cryopreserved sperm to enhance reproductive efficiency and ensure sustainability in livestock herds. The main reason for sperm dysfunction after thawing may be related to the excessive amount of oxidative stress (OS) produced during cryopreservation. Scientists have different ways for counteracting this OS including the use of plant extracts, enzymes, minerals, anti-freezing proteins, and amino acids. Recently, one such amino acid is L-proline (LP), which has multiple roles such as osmotic and OS defense, nitrogen, and carbon metabolism, as well as cell survival and signaling. LP has been found in seminal plasma and has recently been added to the freezing extender to improve the various post-thaw parameters of sperm. This improvement is related to the ability of LP to reduce the OS, sustain the plasma membrane and to act as an osmoregulatory agent. Moreover, LP can suppress cell apoptosis by modulating intracellular redox in sperm. This review addresses the ongoing research on the addition of L-proline as an osmoregulatory agent in freezing extenders to increase the cryotolerance of animal spermatozoa to freeze-thaw.
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Affiliation(s)
- Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.
| | - Wael A Khalil
- Department of Animal Production, Faculty of Agriculture, Mansoura University Mansoura 35516, Egypt.
| | - Norhan E Khalifa
- Department of Physiology, Faculty of Veterinary Medicine, Matrouh University, Fuka, Matrouh 51744, Egypt
| | - Fatma Mohamed Ameen Khalil
- Department of Biology, College of Science and Arts, King Khalid University, Mohayil Asir Abha 61421, Saudi Arabia
| | - Mahmoud A E Hassan
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza 12619, Egypt
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4
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Yadav DK, Kumar A, Gupta S, Sharma P, Kumar G, Sachan V, Yadav B, Yadav S, Saxena A, Swain DK. Antioxidant additive melatonin in tris-based egg yolk extender improves post-thaw sperm attributes in Hariana bull. Anim Reprod Sci 2023; 251:107214. [PMID: 36947953 DOI: 10.1016/j.anireprosci.2023.107214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
In the study, melatonin, a known antioxidant pineal peptide was used as an additive in the tris-egg yolk glycerol-based semen extender in Hariana bull semen and post-thaw sperm characters were evaluated. In the study, Group I was a control without melatonin; and Group II, III, and IV were having 0.5 mM, 1 mM, and 2 mM melatonin/80 × 106 spermatozoa, respectively were treatment groups. Thirty-two semen ejaculates from 4 Hariana bulls were processed for freezing and post-thaw sperm characteristics were evaluated. Sperm motility, velocity, the viability with intact membrane, and total antioxidant capacity were markedly (P < 0.05) improved in Group IV compared to all other groups. The lipid peroxidation and total protein carbonylation were substantially (P < 0.05) decreased in Group IV compared to all other groups. The population of cryocapacitated, acrosome-reacted, and apoptotic-like spermatozoa were significantly (P < 0.05) decreased in Group IV. Further, the relative band intensity of 74 kDa protein and percent of spermatozoa showing positive immune reactivity to tyrosine-phosphorylated proteins was decreased in Group IV. The progesterone-receptor ligand binding, in vitro capacitation response, and Vanguard distance were markedly (P < 0.05) improved in Group IV. In summary- Group IV having 2 mM melatonin was found to be optimal in providing cryoprotective effects to Hariana bull spermatozoa after freezing-thawing and can be suitably used as a semen additive during semen cryopreservation.
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Affiliation(s)
- Dileep Kumar Yadav
- Department of Veterinary Gynaecology and Obstetrics, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Anuj Kumar
- Department of Veterinary Gynaecology and Obstetrics, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Shashikant Gupta
- Department of Veterinary Gynaecology and Obstetrics, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Pratishtha Sharma
- Sperm Signalling Laboratory, Department of Veterinary Physiology, College of Veterinary Science and Animal Husbandry, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Gyanesh Kumar
- Department of Veterinary Gynaecology and Obstetrics, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Vikas Sachan
- Department of Veterinary Gynaecology and Obstetrics, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Brijesh Yadav
- Sperm Signalling Laboratory, Department of Veterinary Physiology, College of Veterinary Science and Animal Husbandry, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Sarvajeet Yadav
- Sperm Signalling Laboratory, Department of Veterinary Physiology, College of Veterinary Science and Animal Husbandry, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Atul Saxena
- Department of Veterinary Gynaecology and Obstetrics, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India
| | - Dilip Kumar Swain
- Sperm Signalling Laboratory, Department of Veterinary Physiology, College of Veterinary Science and Animal Husbandry, U.P. Pandit Deendayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura 281001, Uttar Pradesh, India.
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Upadhyay VR, Ramesh V, Dewry RK, Kumar G, Raval K, Patoliya P. Implications of cryopreservation on structural and functional attributes of bovine spermatozoa: An overview. Andrologia 2021; 53:e14154. [PMID: 34143907 DOI: 10.1111/and.14154] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/12/2021] [Accepted: 06/03/2021] [Indexed: 01/31/2023] Open
Abstract
Sperm cryopreservation is an important adjunct to assisted reproduction techniques (ART) for improving the reproductive efficiency of dairy cattle and buffaloes. Improved understanding of mechanisms and challenges of bovine semen cryopreservation is vital for artificial insemination on a commercial basis. Although cryopreservation of bovine spermatozoa is widely practiced and advanced beyond that of other species, there are still major gaps in the knowledge and technology. Upon cryopreservation, disruption of spermatozoal plasma membrane configuration due to alterations in metabolic pathways, enzymes and antioxidants activity add to lower efficiency with loss of sperm longevity and fertilising ability. Therefore, the effective amalgamation of cryo-variables like ambient temperature, cooling and thawing rates, nucleation temperature, type and concentration of the cryoprotectant, seminal plasma composition, free radicals and antioxidant status are required to optimise cryopreservation. Novel strategies like supplementation of cholesterol-loaded cyclodextrins (CLC), nanovesicles, osteopontin, antioxidants, etc., in an extender and recent techniques like nano-purification and modified packaging have to be optimised to ameliorate the cryodamage. This article is intended to describe the basic facts about the sperm cryopreservation process in bovine and the associated biochemical, biophysical, ultra-structural, molecular and functional alterations.
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Affiliation(s)
| | - Vikram Ramesh
- Animal Reproduction and Gynecology, ICAR-National Research Centre on Mithun, Medziphema, India
| | - Raju Kumar Dewry
- Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, India
| | - Gaurav Kumar
- Division of Animal Physiology, ICAR-National Dairy Research Institute, Karnal, India
| | - Kathan Raval
- Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, India
| | - Priyanka Patoliya
- Division of Livestock Production Management, ICAR-National Dairy Research Institute, Karnal, India
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Li Y, Zhang T, Jia Y, Yang H, Liu W, Pan J, Wang Y, Liang S, Li K. Supplementation of cryoprotectant with
Pinus massoniana
bark extract improves human sperm vitality and fertility potential. Andrology 2020. [DOI: 10.1111/andr.12945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yingya Li
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
- Department of Gynaecology and Obstetrics Ruijin HospitalShanghai Jiao Tong University School of Medicine Shanghai China
| | - Tingyu Zhang
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Yanping Jia
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Hao Yang
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Wenqiang Liu
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Jiaping Pan
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Yu Wang
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Shanshan Liang
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
| | - Kunming Li
- Center of Reproductive Medicine Shanghai First Maternity and Infant HospitalTongji University School of Medicine Shanghai China
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Hitit M, Ugur MR, Dinh TTN, Sajeev D, Kaya A, Topper E, Tan W, Memili E. Cellular and Functional Physiopathology of Bull Sperm With Altered Sperm Freezability. Front Vet Sci 2020; 7:581137. [PMID: 33195596 PMCID: PMC7644894 DOI: 10.3389/fvets.2020.581137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/17/2020] [Indexed: 12/14/2022] Open
Abstract
The objective of this study was to ascertain the cellular and functional parameters as well as ROS related changes in sperm from bulls with varied sperm freezability phenotypes. Using principal component analysis (PCA), the variables were reduced to two principal components, of which PC1 explained 48% of the variance, and PC2 explained 24% of the variance, and clustered animals into two distinct groups of good freezability (GF) and poor freezability (PF). In ROS associated pathophysiology, there were more dead superoxide anion positive (Dead SO+) sperm in GF bulls than those in PF (15.72 and 12.00%; P = 0.024), and that Dead SO+ and live hydrogen positive cells (live H2O2+) were positively correlated with freezability, respectively (R2 = 0.55, P < 0.0130) and (rs = 0.63, P = 0.0498). Related to sperm functional integrity, sperm from PF bulls had greater dead intact acrosome (DIAC) than those from GF bulls (26.29 and 16.10%; P = 0.028) whereas sperm from GF bulls tended to have greater live intact acrosome (LIAC) than those from PF bulls (64.47 and 50.05%; P = 0.084). Sperm with dead reacted acrosome (DRAC) in PF bulls were greater compared to those in GF (19.27 and 11.48%; P = 0.007). While DIAC (R2 = 0.56, P = 0.0124) and DRAC (R2 = 0.57, P < 0.0111) were negatively correlated with freezability phenotype, LIAC (R2 = 0.36, P = 0.0628) was positively correlated. Protamine deficiency (PRM) was similar between sperm from GF and PF bulls (7.20 and 0.64%; P = 0.206) and (rs = 0.70, P = 0.0251) was correlated with freezability. Sperm characteristics associated with cryotolerance are important for advancing both fundamental andrology and assisted reproductive technologies across mammals.
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Affiliation(s)
- Mustafa Hitit
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States.,Department of Animal Genetics, Kastamonu University, Kastamonu, Turkey
| | - Muhammet Rasit Ugur
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
| | - Thu Tran Nhat Dinh
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
| | - Dishnu Sajeev
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
| | - Abdullah Kaya
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | | | - Wei Tan
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS, United States
| | - Erdogan Memili
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
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Mestres S, Pons-Rejraji H, Pereira B, Bouche C, Vega A, Chaput L, Vorilhon S, Janny L, Brugnon F. Sperm cryostorage in a dry tank: An accurate alternative. Cryobiology 2020; 94:32-39. [PMID: 32389625 DOI: 10.1016/j.cryobiol.2020.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 01/21/2023]
Abstract
This prospective study aimed to determine the effects of dry nitrogen cryostorage on human sperm characteristics in comparison with liquid nitrogen cryostorage. For this purpose, 42 men undergoing routine semen analysis (21 normozoospermia and 21 with altered semen parameters) were analyzed. After slow freezing, half of the straws of each sample were randomly stored in liquid and dry tanks, at the top and bottom levels of the latter. After 6 months storage, thawed samples were treated by density gradient centrifugation and sperm characteristics were compared. There was no difference in sperm progressive motility (15.1% ± 14.2% vs. 15.1% ± 12.7%; p = 0.76), sperm vitality (25.5% ± 17.7% vs. 26.2% ± 19%; p = 0.71), percentages of acrosome-reacted spermatozoa (38% ± 8.5% vs. 38.5% ± 7.4%; p = 0.53) and DNA fragmentation spermatozoa (27.3% ± 12.4% vs. 28.5% ± 12.9%, p = 0.47) after cryostorage in the dry or the liquid nitrogen tank. Moreover, we did not observe differences between either cryostorage system for normal and altered sperm samples. This lack of difference was also observed whatever the floor level of cryostorage in the dry tank. The temperature measurement of the dry tank showed a stable temperature at -194 °C throughout storage whatever the storage floor level, guaranteeing the stability of the low temperatures suitable for human sperm storage. Because of its greater safety, dry storage without contact with the liquid phase should be preferred and can be a useful alternative for the cryostorage of human sperm samples.
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Affiliation(s)
- Stéphanie Mestres
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France.
| | - Hanae Pons-Rejraji
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France; Université Clermont Auvergne, IMoST, INSERM 1240, Faculté de Médecine, Place Henri Dunant, F-63000, Clermont-Ferrand, France.
| | - Bruno Pereira
- CHU Clermont Ferrand, DRCI, Délégation Recherche Clinique et Innovation, Biostatistics, Place Henri Dunant, F-63000, Clermont-Ferrand, France.
| | - Cyril Bouche
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France.
| | - Aurélie Vega
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France.
| | - Laure Chaput
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France.
| | - Solène Vorilhon
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France.
| | - Laurent Janny
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France.
| | - Florence Brugnon
- CHU Clermont Ferrand, CHU Estaing, Assistance Médicale à la Procréation, CECOS, 1 Place Aubrac, F-63000, Clermont-Ferrand, France; Université Clermont Auvergne, IMoST, INSERM 1240, Faculté de Médecine, Place Henri Dunant, F-63000, Clermont-Ferrand, France.
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Shangguan A, Zhou H, Sun W, Ding R, Li X, Liu J, Zhou Y, Chen X, Ding F, Yang L, Zhang S. Cryopreservation Induces Alterations of miRNA and mRNA Fragment Profiles of Bull Sperm. Front Genet 2020; 11:419. [PMID: 32431726 PMCID: PMC7214931 DOI: 10.3389/fgene.2020.00419] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 04/03/2020] [Indexed: 11/30/2022] Open
Abstract
Although cryopreservation of bull semen is widely used commercially in the livestock breeding industry, cryopreservation results in low fertility of bull sperm. As an important regulatory factor, the alteration of small non-coding RNA (sncRNA) profile during cryopreservation of bull sperm is not yet completely known. In the present study, we sequenced sncRNAs of frozen and fresh sperm to study the link of alteration of the sncRNA profiles (particularly in miRNAs and mRNA fragments) with low sperm fertility caused by cryopreservation. We identified 55 miRNAs and 526 mRNA fragments differentially expressed (DE) between frozen and fresh sperm. Subsequently, the functional analysis revealed that targeted genes of DE miRNAs in sperm had roles in the fertilization, ATP, and apoptosis. Instead, targeted genes of DE miRNAs in cow metaphase II oocyte were significantly enriched in the MAPK signaling pathway, autophagy-animal pathway, and mitophagy-animal pathway. Additionally, biological processes of DNA repair, spermatid development, response to temperature stimulus, and cellular response to DNA damage stimulus were enriched by mRNA fragments. In conclusion, we found that DE miRNAs or DE mRNA fragments in cryopreservation may influence the fertility of sperm, these findings will provide the reference to improve the cryopreservation technology of bull semen.
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Affiliation(s)
- Aishao Shangguan
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Hao Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Wei Sun
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot, China
| | - Rui Ding
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot, China
| | - Xihe Li
- Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot, China
| | - Jiajia Liu
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Yang Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Xing Chen
- Institute of Animal Husbandry and Veterinary, Wuhan Academy of Agricultural Science, Wuhan, China
| | - Fengling Ding
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Liguo Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Shujun Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Education Ministry of China, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
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10
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Sicherle CC, de Souza FF, Freitas-Dell'Aqua CDP, Mothé GB, Padovani CR, Papa FO, Lopes MD. Effects of the cryopreservation process on dog sperm integrity. Anim Reprod 2020; 17:e20190081. [PMID: 32399067 PMCID: PMC7212748 DOI: 10.21451/1984-3143-ar2019-0081] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Sperm cryopreservation has become an indispensable tool in reproductive biology. However, frozen/thawed semen has a short lifespan due to loss of sperm cell integrity. To better understand which sperm cell structures are compromised by the cryopreservation process and apoptosis markers, the sperm of five healthy mature dogs was analyzed in this study. Analysis was performed after collection, cooling, and thawing via computer assisted sperm analyzer (CASA) and evaluation of membrane fluidity and permeability, phosphatidylserine translocation (Annexin V), membrane integrity, mitochondrial membrane potential, membrane lipid peroxidation (LPO) and activity of the apoptotic markers caspases 3 and 7 by flow cytometry. Cryopreservation decreased total and progressive motility and the percentage of rapid sperm (P < 0.01). Damage to sperm cells was confirmed by Annexin V (P < 0.01), indicating that capacitation-like changes were induced by the cryopreservation procedures. An increase in sperm membrane fluidity was also noted in frozen/thawed samples (P < 0.01). Plasma and acrosomal cell membranes were affected (P < 0.01), with decreases in the subpopulation displaying high membrane potential (P < 0.01). Membrane LPO was increased in thawed sperm compared to cooled sperm (P < 0.05) but was not different from that in fresh sperm. No differences were observed in caspase 3 and 7 activity after cooling, freezing, or thawing. In conclusion, total and progressive motility, plasma membrane integrity and mitochondrial membrane potential suffered from the deleterious effects caused by cryopreservation, unlike the activity of caspases that remained stable during the freezing process.
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Affiliation(s)
- Carmen Cecilia Sicherle
- Departamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
| | - Fabiana Ferreira de Souza
- Departamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
| | - Camila de Paula Freitas-Dell'Aqua
- Departamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
| | - Gabriele Barros Mothé
- Departamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
| | - Carlos Roberto Padovani
- Departamento de Bioestatística, Instituto de Biociências, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
| | - Frederico Ozanam Papa
- Departamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
| | - Maria Denise Lopes
- Departamento de Cirurgia Veterinária e Reprodução Animal, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brasil
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11
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Huang WJ, Zhang D, Hong ZW, Chen ZB, Dong LH, Zhang Y, Chen GY, Liu Y, Yao B. Sequential interval micro-droplet loading in closed hemi-straw carrier system: A convenient and efficient method for ultra-rapid cryopreservation in extreme oligozoospermia. Cryobiology 2020; 93:75-83. [PMID: 32057735 DOI: 10.1016/j.cryobiol.2020.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 02/09/2020] [Accepted: 02/09/2020] [Indexed: 11/28/2022]
Abstract
Cryopreservation of human spermatozoa with low concentration while maintaining adequate post-thawing motility remains a major challenge for male fertility preservation. A convenient and efficient ultra-rapid freezing method for small amounts of human spermatozoa in a closed Hemi-Straw carrier system (CHS) was developed. Spermatozoa from 60 healthy men were involved in a parameter refining test and another 15 extreme oligozoospermic specimens were assigned to a verification test. A commercialized sperm freezing medium, Quinn's Advantage® Sperm Freeze medium (glycerol and sucrose as the cryoprotective agent) was used in the study. The results showed that the highest recovery rates would be obtained via the method of 2 μl single droplet sequential interval loading, by placing the straw at 1 cm above the liquid nitrogen (LN2) surface for 60 s during freezing and 2 cm above the LN2 for 2 min during thawing. This method was applied in cryopreservation for the normozoospermic specimens and compared with a conventional slow freezing method. The results were better than those in the control group in the total motility recovery rate (77.8 ± 11.2% vs 56.6 ± 11.9%, P < 0.01), progressive motility recovery rate (77.6 ± 13.2% vs 47.7 ± 14.6%, P < 0.01), 24 h survival index (60.9 ± 13.4% vs 42.1 ± 14.1%, P < 0.01) and the sperm DNA fragment index (4.2 ± 3.7% vs 5.8 ± 3.7%, P = 0.126). This method was applied to the oligozoospermic specimens. Motile spermatozoa could be found in 12 of 15 cases in the ultra-rapid freezing group, while only in 7 cases in control group. The results indicated that this freezing method was simple, convenient and bio-safe for cryopreservation of severe oligozoospermic specimens.
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Affiliation(s)
- Wu-Jian Huang
- Jinling Hospital Department Reproductive Medical Center, Southern Medical University, Nanjing, 210002, China; Center for Reproductive Medicine, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China
| | - Duo Zhang
- Research Center for Molecular Diagnosis of Genetic Diseases, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China
| | - Zhi-Wei Hong
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350000, China; Department of Urology, Fujian Provincial Hospital, Fuzhou, 350000, China
| | - Zhi-Biao Chen
- Center for Reproductive Medicine, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China
| | - Li-Hong Dong
- Research Center for Molecular Diagnosis of Genetic Diseases, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China
| | - Yan Zhang
- Research Center for Molecular Diagnosis of Genetic Diseases, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China
| | - Guo-Yong Chen
- Center for Reproductive Medicine, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China
| | - Yun Liu
- Center for Reproductive Medicine, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzhou, 350025, China.
| | - Bing Yao
- Jinling Hospital Department Reproductive Medical Center, Southern Medical University, Nanjing, 210002, China.
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12
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The roles of reactive oxygen species and antioxidants in cryopreservation. Biosci Rep 2019; 39:BSR20191601. [PMID: 31371631 PMCID: PMC6712439 DOI: 10.1042/bsr20191601] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 12/16/2022] Open
Abstract
Cryopreservation has facilitated advancement of biological research by allowing the storage of cells over prolonged periods of time. While cryopreservation at extremely low temperatures would render cells metabolically inactive, cells suffer insults during the freezing and thawing process. Among such insults, the generation of supra-physiological levels of reactive oxygen species (ROS) could impair cellular functions and survival. Antioxidants are potential additives that were reported to partially or completely reverse freeze-thaw stress-associated impairments. This review aims to discuss the potential sources of cryopreservation-induced ROS and the effectiveness of antioxidant administration when used individually or in combination.
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13
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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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14
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Effects of ice-binding protein from Leucosporidium on the cryopreservation of boar sperm*. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2018. [DOI: 10.12750/jet.2018.33.3.185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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15
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Sublethal sperm freezing damage: Manifestations and solutions. Theriogenology 2018; 118:172-181. [DOI: 10.1016/j.theriogenology.2018.06.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/28/2018] [Accepted: 06/10/2018] [Indexed: 01/30/2023]
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16
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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: 202] [Impact Index Per Article: 33.7] [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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17
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Exploration of antifilarial activity of gold nanoparticle against human and bovine filarial parasites: A nanomedicinal mechanistic approach. Colloids Surf B Biointerfaces 2018; 161:236-243. [DOI: 10.1016/j.colsurfb.2017.10.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 10/16/2017] [Accepted: 10/19/2017] [Indexed: 11/20/2022]
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18
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Deng SL, Sun TC, Yu K, Wang ZP, Zhang BL, Zhang Y, Wang XX, Lian ZX, Liu YX. Melatonin reduces oxidative damage and upregulates heat shock protein 90 expression in cryopreserved human semen. Free Radic Biol Med 2017; 113:347-354. [PMID: 29051117 DOI: 10.1016/j.freeradbiomed.2017.10.342] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/11/2017] [Accepted: 10/15/2017] [Indexed: 01/21/2023]
Abstract
Sperm cells can be damaged during the semen cryopreservation process, decreasing their fertilizing ability. Physical damage and oxidative stress may occur during the freeze-thawing process. Antioxidants such as the native antioxidant melatonin can potentially improve cryopreservation outcomes. In this study, we added melatonin to cryoprotectant to examine its effect on frozen-thawed human sperm. We found that adding 0.1mM melatonin to cryoprotectant significantly increased sperm viability (24.80 ± 0.46% vs. 20.97 ± 1.27%, P < 0.05) and membrane integrity (P < 0.05), and decreased intracellular reactive oxygen species and lipid peroxidation damage. Furthermore, mRNA levels of the transcription factor NF-E2-related factor-2 and its downstream genes were significantly increased. Resistance to oxidative stress was enhanced and expression of the antiapoptotic gene Bcl-2 was increased by inclusion of 0.1mM melatonin in the cryoprotectant. Moreover, 0.1mM melatonin upregulated the expression of heat shock protein 90 (HSP90), which confers resistance to stressors in frozen-thawed sperm. Results obtained upon addition of inhibitors of melatonin receptors (luzindole and 4-P-PDOT) and an HSP90 inhibitor (geldanamycin) in the cryoprotectant demonstrated that melatonin promoted HSP90 translation via the melatonin receptor MT1 and increased adenosine triphosphate levels, thus increasing the viability of thawed sperm.
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Affiliation(s)
- Shou-Long Deng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Tie-Cheng Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Kun Yu
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zhi-Peng Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Bao-Lu Zhang
- State Oceanic Administration, Beijing 100860, China
| | - Yan Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiu-Xia Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Zheng-Xing Lian
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Yi-Xun Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
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19
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Aliabadi E, Jahanshahi S, Talaei-Khozani T, Banaei M. Comparison and evaluation of capacitation and acrosomal reaction in freeze-thawed human ejaculated spermatozoa treated with L-carnitine and pentoxifylline. Andrologia 2017; 50. [DOI: 10.1111/and.12845] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2017] [Indexed: 11/30/2022] Open
Affiliation(s)
- E. Aliabadi
- Anatomy department; Shiraz University of Medical Sciences; Shiraz Iran
| | - S. Jahanshahi
- Anatomy department; Shiraz University of Medical Sciences; Shiraz Iran
| | - T. Talaei-Khozani
- Anatomy department; Shiraz University of Medical Sciences; Shiraz Iran
| | - M. Banaei
- Anatomy department; Shiraz University of Medical Sciences; Shiraz Iran
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20
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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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21
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Bogle OA, Kumar K, Attardo-Parrinello C, Lewis SEM, Estanyol JM, Ballescà JL, Oliva R. Identification of protein changes in human spermatozoa throughout the cryopreservation process. Andrology 2016; 5:10-22. [PMID: 27860400 DOI: 10.1111/andr.12279] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/15/2016] [Accepted: 07/30/2016] [Indexed: 01/11/2023]
Abstract
Cryoinjury is a consequence of cryopreservation and may have a negative impact on sperm quality regarding motility, morphology, and viability. This study was designed to identify potential proteomic changes in human sperm cells throughout the cryopreservation process. Comparisons made within this study included the detection of the sperm proteomic changes induced by incubation of the sperm cells with a protein-free cryoprotectant (with and without CryoSperm), and the proteomic changes induced by freezing, thawing, and subsequent after-thawing incubation at two different temperatures (0 °C vs. 23 °C). Tandem Mass Tag (TMT) peptide labeling coupled with LC-MS/MS was used for protein quantification. LC-MS/MS resulted in the identification of 769 quantifiable proteins. The abundance of 105 proteins was altered upon CryoSperm incubation. Freezing and thawing also induced substantial protein changes. However, fewer changes were observed when semen was thawed and then maintained after-thawing at approximately 0 °C than when it was maintained after-thawing at 23 °C, with 60 and 99 differential proteins detected, respectively, as compared to unfrozen semen incubated in CryoSperm. Collectively, these differences indicate that substantial changes occur in the sperm proteome at every stage of the cryopreservation process which may ultimately impair the sperm fertilizing capability. This is the first study to compare protein levels in fresh and cryopreserved semen using the TMT technology coupled to LC-MS/MS.
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Affiliation(s)
- O A Bogle
- Molecular Biology of Reproduction and Development Research Group, Department of Biomedicine, Faculty of Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biochemistry and Molecular Genetics Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - K Kumar
- Centre for Public Health, Reproductive Medicine, Institute of Clinical Science, Queen's University Belfast, Northern Ireland, UK
| | - C Attardo-Parrinello
- Molecular Biology of Reproduction and Development Research Group, Department of Biomedicine, Faculty of Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biochemistry and Molecular Genetics Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - S E M Lewis
- Centre for Public Health, Reproductive Medicine, Institute of Clinical Science, Queen's University Belfast, Northern Ireland, UK
| | - J M Estanyol
- Proteomics Unit, Scientific Technical Services, University of Barcelona, Barcelona, Spain
| | - J L Ballescà
- Clinic Institute of Gynecology, Obstetrics and Neonatology, Clinic Hospital, Barcelona, Spain
| | - R Oliva
- Molecular Biology of Reproduction and Development Research Group, Department of Biomedicine, Faculty of Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biochemistry and Molecular Genetics Service, Hospital Clínic, University of Barcelona, Barcelona, Spain
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22
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Savitskaya MA, Onishchenko GE. Apoptosis in cryopreserved eukaryotic cells. BIOCHEMISTRY (MOSCOW) 2016; 81:445-52. [DOI: 10.1134/s0006297916050023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Yun SJ, Bae GS, Park JH, Song TH, Choi A, Ryu BY, Pang MG, Kim EJ, Yoon M, Chang MB. Antioxidant effects of cultured wild ginseng root extracts on the male reproductive function of boars and guinea pigs. Anim Reprod Sci 2016; 170:51-60. [PMID: 27068520 DOI: 10.1016/j.anireprosci.2016.04.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 11/26/2022]
Abstract
The main objective of this study was to investigate the effects of cultured wild ginseng root extracts (cWGRE) on the sperm of boars and the reproductive system of guinea pigs. Firstly, semen collected from boars (n=10) were incubated in 38°C for 1h with xanthine and xanthine oxidase to generate ROS. The cWGRE was added to the sperm culture system to test its antioxidant effect on the boar sperm. The amount of Reactive Oxygen Species (ROS) was measured by a chemiluminescence assay using luminol. The results indicated that the addition of cWGRE to boar sperm culture inhibited xanthine and xanthine oxidase-induced ROS concentrations. Treatment with cWGRE also had a positive effect on maintaining sperm motility. Effects of cWGRE administration on vitamin C-deficient guinea pigs were further investigated. Hartley guinea pigs (n=25) at 8 weeks of age were randomly divided into five groups. With the exception of the positive control group, each group was fed vitamin C-deficient feed for 21days (d). Respective groups were also orally administered cWGRE, ginseng extract, or mixed ginsenosides for 21 days. In comparison to the control group, oral administration of cWGRE reduced (P<0.05) amount of lipid peroxidation and increased (P<0.05) both glutathione peroxidase concentrations and the trolox equivalent antioxidant capacity. In addition, administration of cWGRE induced increases (P<0.05) in body weight, testosterone concentrations, and spermatid populations. The results of the present study support our hypothesis that cWGRE has positive effects on male reproductive functions via suppression of ROS production.
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Affiliation(s)
- Suk Jun Yun
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Gui-Seck Bae
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Jae Hawn Park
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Tae Ho Song
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Ahreum Choi
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Buom-Yong Ryu
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Eun Joong Kim
- Department of Animal Science, Kyungpook National University, Sangju 37224, Republic of Korea
| | - Minjung Yoon
- Department of Horse, Companion, and Wild Animal Science, Kyungpook National University, Sangju 37224, Republic of Korea.
| | - Moon Baek Chang
- Department of Animal Science & Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
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24
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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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25
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Nekoonam S, Nashtaei MS, Naji M, Zangi BM, Amidi F. Effect of Trolox on sperm quality in normozospermia and oligozospermia during cryopreservation. Cryobiology 2016; 72:106-11. [PMID: 26943951 DOI: 10.1016/j.cryobiol.2016.02.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 02/28/2016] [Accepted: 02/28/2016] [Indexed: 11/24/2022]
Abstract
This study evaluated the effects of different concentrations of Trolox supplementation to cryoprotective agent (CPA) on post-thaw apoptosis-like events that include translocation of phosphatidyl serine (PS) to the cell surface, alterations in mitochondrial membrane potential (MMP), and DNA integrity of normozoospermic and oligoozoospermic semen samples. Spermatozoa from 20 normozoospermic men and 20 patients with oligoozoospermia were cryopreserved with cryo-protective agent containing 0, 20, 40, and 80 μM Trolox. Pre-cryopreservation and post-thaw sperm MMP, PS externalization and DNA fragmentation were evaluated by flow cytometry. Sperm frozen in extender with Trolox had greater MMP, lower DNA fragmentation and externalization of PS in both groups, though the most effective dose of Trolox in normozoospermic and oligoozoospermic semen samples were different. These findings support the use of Trolox as freezing extender supplement to improve the quality of cryopreserved human sperm, measured in terms of early apoptosis changes and DNA integrity, in both normozoospermic and oligoozoospermic men.
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Affiliation(s)
- Saeid Nekoonam
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Maryam Shabani Nashtaei
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Naji
- Urology and Nephrology Research Center (UNRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Bagher Minaei Zangi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Fardin Amidi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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26
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Takeda K, Uchiyama K, Kinukawa M, Tagami T, Kaneda M, Watanabe S. Evaluation of sperm DNA damage in bulls by TUNEL assay as a parameter of semen quality. J Reprod Dev 2015; 61:185-90. [PMID: 25739957 PMCID: PMC4498374 DOI: 10.1262/jrd.2014-140] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Sperm DNA damage affects the conception rate resulting from human assisted reproduction technology. The objective of this study was to adapt the terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay to provide a quality parameter for bull semen based on the detection of sperm DNA damage. Fresh semen was collected from two Japanese Black bulls (A, B) several times over the course of a year, and the percentage of TUNEL-positive spermatozoa (sperm TUNEL index) was determined. Individual differences in semen were detected using the sperm TUNEL index in these bulls (P < 0.01). The sperm TUNEL index of cryopreserved semen obtained from test-mated Japanese Black (n = 30, including two bulls with a conception rate lower than 10%) and Holstein (n = 34) bulls were analyzed. The average sperm TUNEL index and conception rate resulting from artificial insemination (AI) were 4.7% and 55.7% for Japanese Black, and 4.9% and 39.5% for Holstein, respectively.
A weak negative correlation between sperm TUNEL index and conception rate was observed in Holstein bulls (P < 0.05). Semen samples from six bulls with more than 10% sperm TUNEL index were studied, and these samples showed low sperm viability. However, semen resulting in a very low conception rate did not have a high sperm TUNEL index. Although it would be difficult to predict a low conception rate resulting from AI using the sperm TUNEL index alone, the index can be used as an additional parameter to provide a more comprehensive description of semen quality.
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Affiliation(s)
- Kumiko Takeda
- Animal Breeding and Reproduction Research Division, NARO Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
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27
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Impairment by sperm agglutinating factor isolated from Escherichia coli: receptor specific interactions. BIOMED RESEARCH INTERNATIONAL 2013; 2013:548497. [PMID: 23956989 PMCID: PMC3730385 DOI: 10.1155/2013/548497] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 06/17/2013] [Indexed: 11/18/2022]
Abstract
In an earlier work done in our laboratory, we have been able to isolate a sperm agglutinating strain of Escherichia coli from the semen sample of a male attending infertility clinic. Further, factor responsible for sperm agglutination (SAF) was isolated and purified, and, using SAF as a tool, corresponding SAF binding receptor from human spermatozoa has been purified. Characterization of SAF and SAF binding receptor using MALDI-TOF showed homology to glutamate decarboxylase and MHC class I molecule, respectively. Coincubation of SAF with spermatozoa not only resulted in spermagglutination but could also compromise other sperm parameters, namely, Mg2+ dependent ATPase activity and apoptosis. Intravaginal administration of SAF could lead to infertility in Balb/c mice. SAF induced impairment of sperm parameters, and infertility was observed to be due to interaction of SAF with sperm surface receptor component as, when purified receptor was introduced, receptor completely inhibited all the detrimental effects induced by SAF. From these results, it could be concluded that interaction of SAF with spermatozoa is receptor mediated.
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28
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Comparison of Apoptotic Cells Between Cryopreserved Ejaculated Sperm and Epididymal Sperm in Stallions. J Equine Vet Sci 2013. [DOI: 10.1016/j.jevs.2012.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Kaur S, Prabha V. Receptor mediated amelioration of the detrimental effects of sperm agglutinating factor on sperm parameters. Andrology 2013; 1:624-31. [DOI: 10.1111/j.2047-2927.2013.00088.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 02/19/2013] [Accepted: 03/13/2013] [Indexed: 11/28/2022]
Affiliation(s)
- S. Kaur
- Department of Microbiology; Panjab University; Chandigarh; India
| | - V. Prabha
- Department of Microbiology; Panjab University; Chandigarh; India
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30
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The Effects of Refrigeration Temperature and Storage Time on Apoptotic Markers in Equine Semen. J Equine Vet Sci 2013. [DOI: 10.1016/j.jevs.2012.04.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Balasuriya A, Serhal P, Doshi A, Harper JC. Processes involved in assisted reproduction technologies significantly increase sperm DNA fragmentation and phosphatidylserine translocation. Andrologia 2012; 46:86-97. [PMID: 23230887 DOI: 10.1111/and.12052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2012] [Indexed: 12/26/2022] Open
Abstract
Sperm preparation techniques in assisted reproduction technologies (ART) are potential generators of exogenous stresses that cause additional DNA damage. DNA fragmentation tests, such as the sperm chromatin structure assay, involve freezing sperm samples in the absence of cryoprotectant. Thermal, oxidative stress (OS) and freezing are detrimental to sperm DNA fragmentation and phosphatidylserine (PS) translocation. The primary aim of this study was to subject mature sperm to environmental insults that normally occur during ART. We tested the hypotheses that OS, thermal stress and freeze-thawing caused sperm nuclear and membrane damage and that a positive correlation exists between PS translocation and DNA fragmentation. Sperm DNA integrity deteriorates in semen samples from men with advancing age and a sperm concentration of <15 m ml(-1) . The significant increase in sperm DNA fragmentation at 37 °C after merely 1 h is important clinically as semen liquefaction and short-term sperm storage in an ART cycle involve incubating samples at this temperature. Freezing without a cryoprotectant significantly increases the level of sperm nuclear damage, so it is important not to freeze neat semen prior to DNA fragmentation testing. This study highlights the importance of minimising the production of exogenous stresses during sperm preparation in ART.
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Affiliation(s)
- A Balasuriya
- UCL Centre for PG & D, Institute for Women's Health, University College London, London, UK
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32
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Sánchez R, Risopatrón J, Schulz M, Villegas JV, Isachenko V, Isachenko E. Vitrified sperm banks: the new aseptic technique for human spermatozoa allows cryopreservation at -86 °C. Andrologia 2012; 44:433-5. [PMID: 22624847 DOI: 10.1111/j.1439-0272.2012.01314.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2012] [Indexed: 11/28/2022] Open
Abstract
The vitrification technique is simple, quick, cost-effective and has showed a significantly stronger cryoprotective effect in contrast to conventional freezing. The method is based on the rapid cooling of the cell by direct immersion in liquid nitrogen (LN (2) ), thereby avoiding the formation of ice crystals, due to the lower risk of water thawing, which impairs cell function. The aim of this study was to evaluate the effect of storage at -86 °C compared to the conventional -196 °C (under LN (2) ) on essential parameters of the functioning of aseptically vitrified human sperm. Sperm motility, integrity of mitochondrial membrane potential and the rate of DNA fragmentation were determined. The comparison of -86 °C and -196 °C demonstrated no statistical difference in sperm progressive motility (73% vs. 77%), integrity of mitochondrial membrane potential (71% vs. 74%) or DNA fragmentation (3.1% vs. 2.9%). In conclusion, aseptically vitrified sperm can be preserved at -86 °C; eliminating the use of LN (2) simplifies and significantly reduces the costs associated with storage in sperm banks by decreasing the time and space needed for storage, the effort in finding stored samples, and by improving safety for the operator. However, for prolonged storage further studies are needed.
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Affiliation(s)
- R Sánchez
- BIOREN-CEBIOR, Universidad de La Frontera, Temuco, Chile.
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Isachenko E, Rahimi G, Mallmann P, Sanchez R, Isachenko V. Novel Approaches to the Cryopreservation of Human Spermatozoa: History and Development of the Spermatozoa Vitrification Technology. ACTA ACUST UNITED AC 2011. [DOI: 10.1177/205891581100200207] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cryobiology is very intensively applied in reproductive and veterinary medicine for preservation of gametes, embryos and reproductive tissues. Sub-zero temperatures combined with appropriate cryoprotective agents preserve the physiological and reproductive functions of the cells making long-term storage possible without loss of viability. With the use of cryoprotective agents it has become possible to develop cryopreservation techniques, such as the slow conventional freezing and vitrification that are in use in the present times. In slow controlled-rate conventional freezing extracellular ice crystals are formed whereas in vitrification no ice crystals are formed. Glass formation is compatible with the survival of the cell and the preservation of its intracellular structures provided the type(s) and concentrations of cryoprotectant used are not chemo- or osmotoxic. However, irrespective of the type of cooling method employed the cryosurvival of cells and tissues is influenced by the size and maturity of cells, amounts of intracellular water, quality and quantity of intracellular lipids, type of cells, their function and morphology. The intracellular milieu of cryopreserved cells and tissues remain less understood. The application of nanotechnology may help reveal and help advance our knowledge of the cryobiological principles involved in cryosurvival. At this moment the methods of cryopreservation that merit further investigation are vitrification and lyophilization. Vitrification is cheap if reagents are prepared in-house and the procedure can be performed rapidly. It has been successfully applied for gametes and embryos (of different stages of development), and reproductive cells/tissues, somatic cells and stem cells. However, vitrification is more demanding technically and requires operation and storage at sub-zero temperatures. On the other hand lyophilization deserves further investigation because it is a cheaper form of cryopreservation that may enable cryostorage at less demanding temperatures of 4°C and may even allow transport at ambient temperature. These possibilities are explored in this review.
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Affiliation(s)
- Evgenia Isachenko
- Department of Gynaecological Endocrinology and Reproductive Medicine, University of Cologne, Kerpener Str. 50931 Cologne, Germany
| | - Gohar Rahimi
- Department of Gynaecological Endocrinology and Reproductive Medicine, University of Cologne, Kerpener Str. 50931 Cologne, Germany
| | - Peter Mallmann
- Department of Gynaecological Endocrinology and Reproductive Medicine, University of Cologne, Kerpener Str. 50931 Cologne, Germany
| | - Raul Sanchez
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Vladimir Isachenko
- Department of Gynaecological Endocrinology and Reproductive Medicine, University of Cologne, Kerpener Str. 50931 Cologne, Germany
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Kadirvel G, Periasamy S, Kumar S. Effect of cryopreservation on apoptotic-like events and its relationship with cryocapacitation of buffalo (Bubalus bubalis) sperm. Reprod Domest Anim 2011; 47:143-50. [PMID: 21676035 DOI: 10.1111/j.1439-0531.2011.01818.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study investigated the apoptosis-like events associated with cryopreservation process and their relationship with cryocapacitation in buffalo (Bubalus bubalis) sperm. A total of 49 semen ejaculates from seven bulls were studied for structural changes in sperm following cryopreservation. Apoptotic changes were detected by assays specific for translocation of phosphatidylserine (PS) to the cell surface, alterations in membrane permeability and mitochondrial membrane potential (MMP), and DNA integrity. A significant (p < 0.01) percentage of cryopreserved sperm showed externalization of PS and early apoptotic changes and lowered MMP when compared with the fresh sperm. Freezing and thawing of sperm increased permeability to YOPRO-1, an impermeant fluorescent dye. However, on TUNEL staining, cryopreserved sperm showed no breach in DNA integrity. The sperm capacitation status was evaluated by chlortetracycline (CTC) fluorescence pattern, in which a significant (p < 0.01) percentage of cryopreserved sperm were found to be capacitated. The capacitated sperm (Pattern B) was positively correlated with the aforementioned apoptotic events. In conclusion, cryopreservation process induced early apoptosis-like changes in buffalo sperm, and a close link exists between cryocapacitation and apoptosis during cryopreservation of sperm.
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Affiliation(s)
- G Kadirvel
- Division of Animal Reproduction Pathology, Indian Veterinary Research Institute, Izatnagar, India.
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35
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Inhibition of the mitochondrial permeability transition pore reduces “apoptosis like” changes during cryopreservation of stallion spermatozoa. Theriogenology 2010; 74:458-65. [DOI: 10.1016/j.theriogenology.2010.02.029] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Revised: 11/22/2009] [Accepted: 02/28/2010] [Indexed: 11/19/2022]
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36
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Frainais C, Vialard F, Rougier N, Aegerther P, Damond F, Ayel JP, Yazbeck C, Hazout A, Selva J. Impact of freezing/thawing technique on sperm DNA integrity in HIV-1 patients. J Assist Reprod Genet 2010; 27:415-21. [PMID: 20496107 DOI: 10.1007/s10815-010-9417-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Accepted: 04/08/2010] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION According french legislation, sperm freezing/thawing procedures are used to prevent ART contaminations in couple with HIV-1 infected men. We determined sperm nuclear fragmentation rate before and after selection and freezing/thawing in HIV-1 14 patients. METHODS Two groups of patients were studied: 20 control patients with normal sperm (group 1) and without viral infection and 20 fertile treated HIV-1 patients (group 2). DNA fragmentation was evaluated using terminal uridine nick end labeling, before and after gradient selection, and after cryopreservation and thawing procedures. RESULTS DNA fragmentation rates in fresh semen were increased in HIV patients (6.38% vs 3.39%) (p < 0.05) compared with control patients. After sperm migration, fragmentation rates were significantly lower (p < 0.0001) in the two groups compared with fresh sperm rates. After freezing/thawing, values were similar to those of fresh semen with an increased rate (p < 0.01) for HIV-1 patients, with respectively 3.40% and 5.18% rates in control and infected patients. HIV-1-infected patients treated by antiretroviral therapy showed a significant increase in sperm DNA fragmentation in fresh sperm and also after freezing/thawing procedures, but these two fragmentation rates were not significantly different. CONCLUSION So, freezing/thawing procedures do not seem to impair sperm DNA and preserve probability of conception for couples with HIV-1 infected men.
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37
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Kim SH, Yu DH, Kim YJ. Effects of cryopreservation on phosphatidylserine translocation, intracellular hydrogen peroxide, and DNA integrity in canine sperm. Theriogenology 2010; 73:282-92. [DOI: 10.1016/j.theriogenology.2009.09.011] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Revised: 09/07/2009] [Accepted: 09/07/2009] [Indexed: 12/31/2022]
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38
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Grunewald S, Paasch U, Wuendrich K, Glander HJ. SPERM CASPASES BECOME MORE ACTIVATED IN INFERTILITY PATIENTS THAN IN HEALTHY DONORS DURING CRYOPRESERVATION. ACTA ACUST UNITED AC 2009; 51:449-60. [PMID: 16214731 DOI: 10.1080/014850190947813] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The programmed cell death (PCD, the apoptosis) is associated with the activation of the "death enzymes" caspases and very likely plays a role in the decrease of sperm vitality during cryopreservation. The activation of pan-caspases was examined in fresh and cryostored sperm by fluorescence microscopy applying a cell permeable and noncytotoxic carboxy-fluorescein labelled caspase inhibitor. Cryopreservation increased significantly the percentage of spermatozoa with activated pan-caspases (aCP) from 21 +/- 2.6 to 47 +/- 5.8 % (mean +/- SEM). Quantitative Western blot analyses confirmed the activation of caspase-1, -8, and -9 in detail on protein level after cryopreservation, whereas, the caspases of sperm of infertility patients showed a higher activation status than donors' sperm. This effect raised with increasing glycerol concentration from 7-14 %. The higher level in activation of caspases in cryostored spermatozoa of infertility patients may indicate that these cells have a lower cryotolerance and a higher susceptibility to caspase activation than does the sperm of donors.
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Affiliation(s)
- S Grunewald
- Division of Andrology, Department of Dermatology, University of Leipzig, Leipzig, Germany
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39
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Ortega Ferrusola C, González Fernández L, Morrell JM, Salazar Sandoval C, Macías García B, Rodríguez-Martinez H, Tapia JA, Peña FJ. Lipid peroxidation, assessed with BODIPY-C11, increases after cryopreservation of stallion spermatozoa, is stallion-dependent and is related to apoptotic-like changes. Reproduction 2009; 138:55-63. [PMID: 19380427 DOI: 10.1530/rep-08-0484] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Lipid peroxidation (LPO) of stallion spermatozoa was assessed in fresh semen and in samples of the same ejaculates after freezing and thawing. Particular attention was paid to individual differences in the susceptibility to LPO and its possible relationship with freezability. Innate levels of LPO were very low in fresh spermatozoa but increased after thawing, a change that was largely stallion-dependent. The level of LPO in fresh spermatozoa was not correlated with that of the thawed spermatozoa. Negative correlations existed between LPO and intact membranes post-thaw (r=-0.789, P<0.001), and also between LPO and spermatozoa with high mitochondrial membrane potential (Deltapsim) post-thaw (r=-0.689, P<0.001). LPO was also highly and significantly correlated with caspase activity. The correlation between caspase activity in ethidium positive cells and LPO was r=0.772, P<0.001. This LPO is unlikely to represent, per se, a sign of cryopreservation-induced injury, but it is apparently capable of triggering 'apoptotic-like changes' that could result in the sub-lethal cryodamage often seen among surviving spermatozoa.
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Affiliation(s)
- C Ortega Ferrusola
- Section of Reproduction and Obstetrics, Laboratory of Spermatology, Department of Herd Health and Medicine, Veterinary Teaching Hospital, University of Extremadura, Avda de la Universidad s/n, Cáceres 10071, Spain
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40
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Ahn MS, Eom YW, Park JS, Choi JH, Kang SY, Lee HW, Yang MS, Kim HE, Jang IK, Lee JE, Kim YJ, Kim HC, Jeong SH. Difference in Viability of CD34+ Cells in Cryopreserved Cord Blood According to Evaluation Methods. THE KOREAN JOURNAL OF HEMATOLOGY 2009. [DOI: 10.5045/kjh.2009.44.2.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Mi Sun Ahn
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Young-woo Eom
- Biomedical Research Institute, LifeCord Inc., Suwon, Korea
| | - Joon Seong Park
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Jin-Hyuk Choi
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Seok Yun Kang
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Hyun Woo Lee
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Mal Sook Yang
- Biomedical Research Institute, LifeCord Inc., Suwon, Korea
| | - Hyo Eun Kim
- Biomedical Research Institute, LifeCord Inc., Suwon, Korea
| | - In Keun Jang
- Biomedical Research Institute, LifeCord Inc., Suwon, Korea
| | - Jong Eun Lee
- Biomedical Research Institute, LifeCord Inc., Suwon, Korea
| | - Young Jin Kim
- Biomedical Research Institute, LifeCord Inc., Suwon, Korea
| | - Hugh Chul Kim
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Seong Hyun Jeong
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon, Korea
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Abstract
Thanks to the increasing use of flow cytometry in research in veterinary spermatology, many new membrane integrity assays have been developed over the past decade. These assays are important because of their superior ability to forecast fertility when compared with other tests, such as sperm motility. This major component of the sperm quality assessment has generated new investigations with the aim of developing tests that can detect membrane damage in a very early state. Using phospholipid transposition tests, early changes in membrane permeability and fluidity can be assessed in a large number of spermatozoa using fluorescent probes in combination with flow cytometry.
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Affiliation(s)
- Fernando J Pena
- Department of Herd Health and Medicine, Faculty of Veterinary Medicine, Avd de la Universidad s/n, Caceres 10071, Spain.
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42
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Siemieniuch M, Dubiel A. Preservation of tomcat (Felis catus) semen in variable temperatures. Anim Reprod Sci 2007; 99:135-44. [PMID: 16725286 DOI: 10.1016/j.anireprosci.2006.04.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2005] [Revised: 04/10/2006] [Accepted: 04/18/2006] [Indexed: 11/23/2022]
Abstract
The aim of our study was to estimate the viability of cat epididymal sperm in short time storage at +4 degrees C and in long term storage at -196 degrees C and to assess the percentage of live sperm in fresh semen using eosin/nigrosin staining compared to the flow cytometry method. The testes with epididymides were obtained after routine castration procedure. The sperm for further research were collected after flushing the epididymides using extender consist of: Tris 2.4 g, citric acid 1.4 g, glucose 0.8 g, 0.06% (w/v) Na-benzylpenicillin, 0.1% (w/v) streptomycin sulphate and distilled water. Half of each sample was equilibrated with the dilution and loaded in 0.25 ml plastic straws. The straws were placed on a rack in liquid nitrogen vapour at -120 degrees C for 10 min, plunged in liquid nitrogen for 10 min, replaced to marked goblets and loaded into canes for long term storage in liquid nitrogen at -196 degrees C. Sixty percent of motile spermatozoa was accomplished after thawing. However, the percentage of the sperm with intact acrosomes was decreased and the share of cells with midpiece and tail defects was increased. The storage of sperm flushed from epididymides at +4 degrees C for a short time and the usage of sperm during 2-3 days after collection seems to be better than cryopreservation. In our study, normospermia was present in 72.7 +/- 8.8% of fresh semen. The most common defect was the presence of distal droplets, imperfect heads or abnormal acrosomal outline. The motility of fresh sperm flushed from epididymides achieved 77.9 +/- 6.8%. The viability of sperm amounting to 52.5 +/- 13.8% was achieved on third day of conservation in the liquid extender. The percentage of viable sperm in fresh epididymal spermatozoa was 84.9 +/- 7.8%. Compared to these results, the percentage of live cells using SYBR-14/propidium iodide staining was insignificantly lower (82.2 +/- 8%). The live, non-apoptotic cells were 79.0 +/- 7.8%. The share of live, early-apoptotic spermatozoa and late-apoptotic spermatozoa was, respectively, 2 +/- 1.4% and 1.5 +/- 0.9%. The viability of sperm estimated by eosin/nigrosin staining was confirmed by the flow cytometry method. There was no statistical differences between the staining. The usage of apoptosis detection kit revealed, that the percentage of early-apoptotic and late-apoptotic cells was insignificant.
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Affiliation(s)
- Marta Siemieniuch
- Faculty of Veterinary Medicine, Department and Clinic of Reproduction, Ruminant Diseases and Animal Health Protection Agricultural University of Wrocław, 50-366 Wrocław, Pl. Grunwaldzki 49, Poland.
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Chaveiro A, Santos P, da Silva FM. Assessment of Sperm Apoptosis in Cryopreserved Bull Semen After Swim-up Treatment: A Flow Cytometric Study. Reprod Domest Anim 2007; 42:17-21. [PMID: 17214767 DOI: 10.1111/j.1439-0531.2006.00712.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The techniques used to prepare bovine spermatozoa for in vitro fertilization, to enhance the percentage of motile sperm cells include the swim-up (SU) method, among others. The objective of the present study was to evaluate the phosphatidylserine (PS) translocation and plasma membrane integrity as the indicator of apoptosis and necrosis in post-thaw bull sperm after SU treatment using annexin V-fluorescein isothiocyanate (FITC)/propidium iodide (PI) assay. A flow cytometric method was employed to measure apoptosis levels on frozen-thawed bull spermatozoa. The assay detects PS translocation across the plasma membrane using a fluorescein-labelled annexin-V and PI. By using the annexin V/PI assay four different subpopulations of sperm were observed: (i) a population of apoptotic sperm, labelled with annexin V-FITC but not with PI; (ii) a population of early necrotic spermatozoa, sperm labelled with annexin-FITC and PI; (iii) a population of necrotic sperm, labelled with PI but not with annexin-FITC; and (iv) a population of fully viable sperm cells, sperm not labelled with annexin V-FITC and without PI. Results clearly indicated that SU technique itself could have an adverse effect on the spermatozoa membrane stability. It has also been found, significant differences between bulls in the levels of apoptotic sperm, after SU treatment.
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Affiliation(s)
- A Chaveiro
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, Angra do Heroismo, Portugal.
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Abstract
Pure dog breeding is experiencing growing interest. Assisted reproductive technologies are each time demanded more by the small animal practitioner. In this paper different semen technologies are briefly reviewed under the perspective of the authors. In addition, new trends in the evaluation of canine ejaculates, developed in the laboratory of the authors are discussed. The existence of sperm subpopulations defined based both on kinematics and morphometric characteristics of the spermatozoa is now widely accepted by the scientific community. In the laboratory of the authors new, simpler and more straightforward statistical tools have been used to disclose the sperm subpopulation structure in the canine ejaculate. The study of the sperm subpopulation structure and its changes after cryopreservation has allowed us to gain an insight into the differences in freezeability among dogs, and also predict to a great extent the outcome of a cryopreservation procedure of a given semen sample. New techniques to evaluate early membrane changes have also been recently developed in our laboratory.
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Affiliation(s)
- F J Peña
- Reproduction and Obstetrics, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain.
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Wündrich K, Paasch U, Leicht M, Glander HJ. Activation of Caspases in Human Spermatozoa during Cryopreservation – An Immunoblot Study. Cell Tissue Bank 2006; 7:81-90. [PMID: 16732410 DOI: 10.1007/s10561-005-0276-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2004] [Accepted: 12/29/2004] [Indexed: 10/24/2022]
Abstract
Cellular stress to ejaculated spermatozoa such as cryopreservation is known to induce caspase-derived, apoptotic signaling. Therefore, the proenzymes and active forms of caspases 1, 3, 8 and 9 were examined by western blot technique in unfrozen and frozen human spermatozoa of infertility patients and of healthy donors. Twenty-two semen samples derived from healthy donors and 26 semen samples of unselected infertility patients were divided into 3 parts, two of them were cryostored at -196 degrees C with 7% or 14% (v/v, final concentration) of glycerol. The caspases were detected by immunoblots with polyclonal rabbit-anti-caspases-antibodies after 15% sodium dodecyl sulfate-polyacrylgel electrophoresis (SDS-PAGE) under reducing conditions. For evaluation of the differences between amounts of caspase protein the luminol/H(2)O(2) method was applied. A significant increase of activated caspase-1 in donors, of caspase-8 in patients and caspase-9 in patients and donors after cryopreservation were found, whereas, the application of 14% glycerol resulted in higher amounts of activated caspase than did 7% glycerol. Possibly, glycerol may also contribute to activation of caspases via direct toxic effects to mitochondria during cryopreservation of spermatozoa. This finding strongly supports an hypothesis of a higher mitochondria-derived apoptosis-sensitivity of spermatozoa in patients than in healthy donors during cryopreservation. Inactive caspase-3 was reduced subsequent to cryopreservation in patients (p<0.05) and non-significant in donors (p<0.05). Active caspase-3 was detectable in all samples but without significant differences between the three assays. It is concluded that mechanisms associated with apoptotic processes deserve attention in cryopreservation of spermatozoa in order to conserve vital sperm functions after thawing.
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Affiliation(s)
- Katja Wündrich
- Department of Dermatology/Andrology Unit, University of Leipzig, Stephanstrasse 11, D-04103, Leipzig, Germany
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Thomas AD, Meyers SA, Ball BA. Capacitation-like changes in equine spermatozoa following cryopreservation. Theriogenology 2006; 65:1531-50. [PMID: 16225914 DOI: 10.1016/j.theriogenology.2005.08.022] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2005] [Accepted: 08/25/2005] [Indexed: 11/29/2022]
Abstract
The primary objective of this study was to assess plasma membrane characteristics and activation of signal transduction pathways in equine spermatozoa during both in vitro capacitation and cryopreservation. Significant plasma membrane restructuring, as assessed by measurement of plasma membrane lipid disorder and phospholipid scrambling, was not observed until after cryopreservation and subsequent thawing (P < 0.05). Although in vitro capacitated cells also displayed increased plasma membrane lipid disorder and phospholipid scrambling (P < 0.05), it appeared that regulation of these events in in vitro capacitated versus cryopreserved equine spermatozoa was not identical. Addition of 5 microM staurosporine to the capacitation media reduced plasma membrane phospholipid scrambling (P < 0.05), but supplementation to the freezing extender prior to cryopreservation did not. Furthermore, progesterone was able to induce a greater degree of acrosomal exocytosis in in vitro capacitated versus frozen/thawed spermatozoa. Expression of phospholipid scramblase, a protein thought to be important in plasma membrane phospholipid scrambling, did not differ between treatments. Comparison of protein tyrosine phosphorylation patterns between in vitro capacitated and cryopreserved cells demonstrated a divergence in signal transduction. Cellular signaling in in vitro capacitated equine spermatozoa appeared to be in part dependent on activation of the cAMP/PKA pathway, whereas signaling in cryopreserved cells seemed to proceed predominantly through alternative pathways. Taken together, these data support the idea that capacitation and "cryocapacitation" are not equivalent processes.
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Affiliation(s)
- A D Thomas
- Department of Population, Health, and Reproduction, School of Veterinary Medicine, University of California, One Shields Avenue, Davis, CA 95616, USA
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Barroso G, Taylor S, Morshedi M, Manzur F, Gaviño F, Oehninger S. Mitochondrial membrane potential integrity and plasma membrane translocation of phosphatidylserine as early apoptotic markers: a comparison of two different sperm subpopulations. Fertil Steril 2006; 85:149-54. [PMID: 16412746 DOI: 10.1016/j.fertnstert.2005.06.046] [Citation(s) in RCA: 128] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2005] [Revised: 06/21/2005] [Accepted: 06/21/2005] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To examine whether a relationship exists between loss of mitochondrial transmembrane potential and plasma membrane translocation of phosphatidylserine (PS) in subpopulations of human spermatozoa of men consulting for infertility. SETTING A tertiary institutional research center. DESIGN Prospective observational study. PATIENT(S) Twelve infertile men and five fertile controls were compared. INTERVENTION(S) Sperm subpopulations were compared after density gradient separation. MAIN OUTCOME MEASURE(S) Mitochondrial membrane potential was measured with a cationic dye, translocation of PS was evaluated with Annexin-V binding, and motion parameters were assessed manually. RESULT(S) In both the study and control groups and compared with the high-motility fraction, the low-motility fraction had significantly lower sperm motility and normal morphology, and significantly higher percentage of cells with disrupted mitochondrial membrane potential and plasma membrane PS translocation. There was a positive and significant correlation in both subfertile and control groups between the percentages of Annexin-V+ live cells and cells with mitochondrial membrane potential disruption (r = 0.82 and r = 0.85, respectively). CONCLUSION(S) The correlation of plasma membrane PS translocation and loss of mitochondrial membrane potential is suggestive of an early apoptosis phenotype, as is typically observed in somatic cells identified in sperm subpopulations with percentage of low-motile cells. We speculate that such changes might be used as diagnostic markers of sperm dysfunction(s) and that increased levels found in subfertile men might be indicators of reduced fertility potential.
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Affiliation(s)
- Gerardo Barroso
- Assisted Reproductive Division, Instituto Nacional de Perinatología, Mexico City, Mexico.
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Brugnon F, Van Assche E, Verheyen G, Sion B, Boucher D, Pouly JL, Janny L, Devroey P, Liebaers I, Van Steirteghem A. Study of two markers of apoptosis and meiotic segregation in ejaculated sperm of chromosomal translocation carrier patients. Hum Reprod 2005; 21:685-93. [PMID: 16339168 DOI: 10.1093/humrep/dei401] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND To try to explain the infertility of chromosomal translocation carrier patients, we compared the expression of two markers of apoptosis in the sperm of patients and of fertile donors, and we studied the meiotic segregation in the ejaculated sperm of these translocation carriers. METHODS Twenty semen samples of translocation carriers, [reciprocal (n=14) and Robertsonian translocations (n=6)], were compared with the semen samples of donors (n=20). Different tests were applied: annexin V binding assay; terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labelling (TUNEL); and fluorescence in situ hybridization (FISH). RESULTS The annexin V binding assay in sperm of patients with chromosomal translocation (n=17) showed a significantly increased proportion of sperm with externalized phosphatidylserine (PS) than in the control group (n=20, P<or=0.05). The rates of DNA fragmentation investigated by TUNEL reaction were higher in samples of translocation carriers (n=14) than in donors (n=20, P<0.0001). The measures by FISH technique showed that the proportions of balanced or normal gametes were predominant in the reciprocal translocation group (alternate: n=7; from 33.0 to 58.8%; adjacent I: n=7; from 4.6 to 43.8%) and in the Robertsonian translocation group (normal: n=5; from 76.0 to 88.5%). CONCLUSIONS Our data show a predominant proportion of balanced gametes in sperm of chromosomal translocation carrier patients. Moreover, PS externalization and DNA fragmentation rates are significantly higher in ejaculated sperm of these patients than in donor sperm. These tests could be used to predict the outcome of ICSI for these patients.
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Affiliation(s)
- F Brugnon
- Biologie de la Reproduction, CECOS, Département de gynécologie obstétrique et reproduction humaine and Research Centre Reproductive and Genetics, Vrije Universiteit Brussel, Laarbeeklaan 101, B-1090, Belgium.
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Bungum M, Bungum L, Humaidan P. A prospective study, using sibling oocytes, examining the effect of 30 seconds versus 90 minutes gamete co-incubation in IVF. Hum Reprod 2005; 21:518-23. [PMID: 16239314 DOI: 10.1093/humrep/dei350] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Traditionally oocytes have been exposed to sperm overnight, for 16-20 h. This long period of co-incubation, however, has been shown to create problems with high levels of reactive oxygen species (ROS), which may affect embryo viability and cause hardening of the zona pellucida. Recently, a positive effect of reducing the co-incubation time to 90-120 min was reported. The objective of this study was to evaluate whether a further reduction of the co-incubation period could benefit the outcome of IVF. METHODS In this prospective study, 777 sibling oocytes from 81 women undergoing IVF were divided via alternate allocation to co-incubation for either 30 s (ultrashort co-incubation) (group A) or for 90 min (standard co-incubation) (group B). Endpoints were normal fertilization (two-pronuclear, 2PN), polyspermy (>2PN), embryo quality (EQ), clinical pregnancy (CP) and implantation (IR). RESULTS The normal fertilization rates of the two groups were comparable: group A 58.6% versus group B 58.0%. Significantly lower rates of polyspermy were seen in group A compared to group B (2.8 versus 7.2%, P = 0.008). No statistically significant differences in EQ, CP or IR were seen. CONCLUSION This is the first study demonstrating the achievement of good fertilization rates in IVF with ultrashort co-incubation. Significantly lower rates of polyspermy were seen in the group with ultrashort compared to the standard co-incubation group. Further studies are, however, needed in order to evaluate whether ultrashort co-incubation has any effect on the outcome of IVF.
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Affiliation(s)
- Mona Bungum
- The Fertility Clinic, Viborg Hospital (Skive), Resenvej 25, DK 7800 Skive, Denmark.
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Marchetti C, Marchetti P. Place des marqueurs de l'apoptose dans l'exploration de l'infertilité masculine. ACTA ACUST UNITED AC 2005; 33:669-77. [PMID: 16137915 DOI: 10.1016/j.gyobfe.2005.06.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2005] [Accepted: 06/27/2005] [Indexed: 11/21/2022]
Abstract
Ejaculated spermatozoa, particularly in infertile men, have been shown to display numerous features that are typical of apoptosis in somatic cells including Fas expression, ROS production, activation of caspases, DNA fragmentation, reduction in mitochondrial membrane potential, plasma membrane translocation of phosphatidylserine and permeability. In this review we summarize the biological significance and the potential role of these markers in the exploration of men infertility.
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Affiliation(s)
- C Marchetti
- Laboratoire de biologie de la reproduction, hôpital Jeanne-de-Flandre, CHRU de Lille, 2, avenue Oscar-Lambret, 59037 Lille cedex, France.
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