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Neila-Montero M, Alvarez M, Riesco MF, Soriano-Úbeda C, Montes-Garrido R, Palacin-Martinez C, de Paz P, Anel L, Anel-Lopez L. Seminal plasma removal for medium-term preservation of ram sperm at 5 °C. BMC Vet Res 2024; 20:360. [PMID: 39128999 PMCID: PMC11318144 DOI: 10.1186/s12917-024-04214-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/31/2024] [Indexed: 08/13/2024] Open
Abstract
This study aimed to investigate if washing ram sperm from seminal plasma (SP) could be an effective tool to extend sperm lifespan in medium-term preservation in liquid form to optimize ovine artificial insemination protocols. To this end, in Experiment 1 SP was added to a sperm model without previous contact with this substance (ram epididymal sperm) at the beginning or the end of a 48-hour preservation protocol at 5 °C (n = 13). Sperm motility and kinetic parameters and sperm functionality in terms of sperm viability, apoptosis, mitochondrial activity and reacted acrosomes were assessed after 6 h of storage at 15 °C (standard liquid preservation method) and 24 and 48 h at 5 °C. Extended sperm showed better results after 48 h when stored in the absence than in the presence of SP in most sperm quality parameters. Moreover, the final SP supplementation of this experimental group resulted in the highest sperm motility and kinetic parameters, viability and mitochondrial activity. These results suggested that initial SP deprivation could be beneficial in a medium-term ram sperm preservation protocol in liquid form, as well as a final supplementation. Therefore, we conducted Experiment 2 to evaluate the effect of SP removal from freshly ejaculated ram semen under the same storage conditions as in Experiment 1 (n = 12). Surprisingly, SP withdrawal impaired sperm functionality, leading to increased apoptosis and decreased mitochondrial activity after 24 and 48 h at 5 °C. Conversely, SP supplementation at the end of the preservation protocol of the ejaculate processed as usual had a positive effect on sperm quality and fertility. To summarize, SP absence was beneficial for a medium-term preservation protocol (up to 48 h at 5 °C) of ram epididymal sperm, but the same preservation protocol for ram ejaculated sperm revealed a possible failure of the SP removal method in avoiding the sperm-SP interaction effect. Meanwhile, SP supplementation of ram semen at the end of the preservation protocol increased in vitro sperm quality and fertility after artificial insemination.
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Affiliation(s)
- Marta Neila-Montero
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Mercedes Alvarez
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain.
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain.
| | - Marta F Riesco
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Cellular Biology, Department of Molecular Biology, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Cristina Soriano-Úbeda
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Rafael Montes-Garrido
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Cristina Palacin-Martinez
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Paulino de Paz
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Cellular Biology, Department of Molecular Biology, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Luis Anel
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain
| | - Luis Anel-Lopez
- Itra-ULE, INDEGSAL, University of León, Campus de Vegazana S/N, León, 24071, Spain
- Anatomy, Department of Veterinary Medicine, Surgery and Anatomy, University of León, Campus de Vegazana S/N, León, 24071, Spain
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Negus C, Pinyopummin A, Mahasawangkul S, Hobbs R, Bathgate R. Asian elephant ( Elephas maximus) seminal plasma: establishing the proteome and effect on spermatozoa when added to cryomedium. Reprod Fertil Dev 2024; 36:RD23217. [PMID: 39052858 DOI: 10.1071/rd23217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 06/27/2024] [Indexed: 07/27/2024] Open
Abstract
Context The removal or supplementation of ejaculates with seminal plasma (SP) can affect cryotolerance and post-thaw survival of spermatozoa in many species. In the Asian elephant (Elephas maximus ), elucidation of the SP proteome and investigation of how it affects spermatozoa may enable improvement of cryopreservation protocols. Aims Herein, we characterise the Asian elephant SP proteome and investigate the impacts of SP on sperm cryotolerance in the presence of conspecific or heterospecific SP. Methods Proteomic analysis of Asian elephant SP was performed using mass spectrometry on nine samples from three individuals. In a separate study, SP was removed from six ejaculates and spermatozoa were resuspended in Tris extender supplemented with: no seminal plasma (NOSP), conspecific SP from ejaculates exhibiting 'good' (GSP, >60%) or mixed sperm total motility (MSP), or horse SP (HSP). Samples underwent cryopreservation, and sperm parameters were compared prior to cryopreservation and after thawing (0 and 2h). Key results Mass spectrometry identified 155 proteins from an array of families. Significant differences were observed in post-thaw sperm quality between SP treatments: high concentrations of MSP (25%, v/v) displayed greater average path and straight-line velocity immediately after thawing (P P P Conclusions and implications These preliminary findings suggest the potential of SP to enhance the cryosurvival of Asian elephant spermatozoa, with HSP showing particularly promising results compared to conspecific SP (GSP). Further research into the specific effects of Asian elephant SP proteins is warranted.
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Affiliation(s)
- Cameron Negus
- Faculty of Science, Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
| | - Anuchai Pinyopummin
- Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom, Thailand
| | | | - Rebecca Hobbs
- Taronga Institute of Science and Learning, Dubbo, NSW, Australia
| | - Roslyn Bathgate
- Faculty of Science, Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
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Neuman NM, Orzołek A, Steiner-Bogdaszewska Ż, Dziekońska A. Changes in the Morphology and Antioxidant Status of European Red Deer Sperm Stored in the Epididymides and in a Liquid State. Animals (Basel) 2024; 14:1653. [PMID: 38891701 PMCID: PMC11171189 DOI: 10.3390/ani14111653] [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: 04/29/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
The aim of this study was to evaluate the motility, morphology, and antioxidant status of European red deer sperm stored in a liquid state (variant I) and in the epididymides (variant II). Spermatozoa were harvested post-mortem from the cauda epididymis. Sperm samples in both variants were stored for up to six days (D6) at 5 °C. Spermatozoa were assessed for motility, viability, morphology, activity of antioxidant enzymes (superoxide dismutase, SOD; glutathione peroxidase, GPx; catalase, CAT), and lipid peroxidation (malondialdehyde, MDA, content). Sperm samples were analyzed on storage days 0, 2, 4, and 6 (D0-D6). Storage time and storage method significantly (p ≤ 0.05) influenced the examined variables. On D2, a decrease in motility and acrosomal integrity was observed in both storage variants, whereas a decrease in viability and an increase in MDA content were noted in spermatozoa stored in the epididymides. On D4, higher values of SOD and GPx activity and MDA content were noted in variant I than in variant II. Catalase activity was very low. GPx is the key enzyme that participates in the reduction of hydrogen peroxide in sperm cells. Spermatozoa stored in a liquid state were characterized by higher motility and viability, improved morphology and antioxidant status than those stored in the epididymides; therefore, liquid storage is more recommended for short-term preservation of epididymal spermatozoa.
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Affiliation(s)
- Nicoletta M. Neuman
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland; (N.M.N.); (A.O.)
| | - Aleksandra Orzołek
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland; (N.M.N.); (A.O.)
| | - Żaneta Steiner-Bogdaszewska
- Witold Stefański Institute of Parasitology of the Polish Academy of Sciences, Research Station in Kosewo Górne, 11-700 Mrągowo, Poland;
| | - Anna Dziekońska
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-719 Olsztyn, Poland; (N.M.N.); (A.O.)
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4
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Wang Y, Liu Q, Sun Q, Zheng L, Jin T, Cao H, Zhu C, Li L, Gong Y, Yang F, Dong W. Exosomes from porcine serum as endogenous additive maintain function of boar sperm during liquid preservation at 17 °C in vitro. Theriogenology 2024; 219:147-156. [PMID: 38430799 DOI: 10.1016/j.theriogenology.2024.02.015] [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: 07/26/2023] [Revised: 02/08/2024] [Accepted: 02/13/2024] [Indexed: 03/05/2024]
Abstract
The supplementation of sperm culture media with serum is quite common, and improves both sperm survival and motility. However, the link between serum and sperm remains poorly understood. The present study is the first investigation of the effects on sperm quality and function of endogenous porcine serum exosomes in medium used for culturing boar sperm. Scanning electron microscopy (SEM) confirmed that serum-derived exosomes from both castrated boars (cbsExos) and sows (ssExos) exhibited typical nanostructural morphology and expressed CD63, CD9, and Alix, as shown by Western blotting. At 17 °C, the progressive motility and membrane integrity of sperm were significantly increased after incubation of fresh boar semen for 7 days with cbsExos-4 (8 × 1010 particles/mL) or ssExos-16 (32 × 1010 particles/mL). Moreover, cbsExos-4 and ssExos-16 were found to be effective sperm additives, improving mitochondrial transmembrane potential (ΔΨm) and adenosine triphosphate (ATP) content, total antioxidant activity (T-AOC), superoxide dismutase (SOD) activity, and glutathione peroxidase (GPx) activity while reducing reactive oxygen species (ROS) levels, and malondialdehyde (MDA) content following preservation at 17 °C after a 5-day incubation. Both fluorescence and SEM showed that the serum exosomes bound directly to the sperm membrane, suggesting an interaction that could influence sperm-zona pellucida binding. Overall, this study provides new insights into the potential benefits of adding cbsExos and ssExos to enhance the quality of boar sperm during ambient temperature preservation, which may lead to advancements in sperm preservation strategies.
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Affiliation(s)
- Yang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qimin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qingfang Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lijuan Zheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tianqi Jin
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Heran Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Chao Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Long Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ye Gong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Shaanxi Dayi Xunlong Biotechnology Co., LTD, Yangling, Shaanxi, 712100, China
| | - Fangxia Yang
- College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China; Biology Research Centre of Qin Mountains Wildlife, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Neuman NM, Dziekońska A, Orzołek A, Gilun P. A comparison of the biological properties of European red deer (Cervus elaphus elaphus) spermatozoa stored in the epididymides and in a liquid state at 5 °C. Anim Reprod Sci 2024; 260:107387. [PMID: 38056178 DOI: 10.1016/j.anireprosci.2023.107387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
The biological properties of European red deer (Cervus elaphus elaphus) spermatozoa stored in the epididymides and in a liquid state were compared. Spermatozoa were collected from the epididymides harvested post-mortem. In the first variant, spermatozoa were diluted in two extenders (Bovidyl® and Salomon's), and were stored at 5 °C for up to 144 h. In the second variant, spermatozoa were stored in the epididymides at 5 °C for up to 144 h, and then diluted in the same extenders. Biological properties were evaluated after 0, 48, 96, and 144 h of storage. Sperm motility parameters were determined in the CASA system. Plasma and acrosomal membrane integrity, mitochondrial activity, apoptotic changes, and DNA integrity were assessed by the fluorescence method. Most variables were significantly influenced by the storage method and time. At 144 h, differences (P ≤ 0.05) in sperm parameters were observed between storage variants. Total motility (TMOT), plasma membrane integrity, and mitochondrial activity decreased below 50% of baseline values in the spermatozoa stored in the epididymides, but remained above 70% of baseline values in the spermatozoa stored in a liquid state. The compared storage variants did not differ in TMOT, mitochondrial activity, or the percentage of viable spermatozoa without apoptotic-like changes up to 96 h of storage, regardless of the applied extender. The earliest significant changes were noted in sperm motility parameters. In conclusion, European red deer spermatozoa can be stored in the epididymides at 5 °C for up to 96 h, but their biological parameters are more effectively preserved during liquid storage.
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Affiliation(s)
- Nicoletta M Neuman
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland
| | - Anna Dziekońska
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland.
| | - Aleksandra Orzołek
- Department of Animal Biochemistry and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland
| | - Przemysław Gilun
- Department of Local Physiological Regulations, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
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Gökçe E, Üstüner B. Does Rainbow Trout Seminal Plasma-Cysteine Combination Affect the Cryo-Survivability and Post-Thaw Incubation Resilience of Ram Semen? Biopreserv Biobank 2023; 21:583-592. [PMID: 36516083 DOI: 10.1089/bio.2022.0081] [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] [Indexed: 12/15/2022] Open
Abstract
The aim of this study was to evaluate the effect of both pure rainbow trout seminal plasma (RTSP) supplementation and RTSP-cysteine combination on cryopreservation success and post-thaw incubation resilience of ram semen in the nonbreeding season. For this purpose, different doses of RTSP (0%, 1%, 10%, and 15%) with or without cysteine supplementation were used for experiments. Ejaculates chosen for experiments were pooled and then divided into eight equal volumes for grouping (Control-ControlC, RTSP1-RTSP1C, RTSP10-RTSP10C, and RTSP15-RTSP15C). After cryopreservation, frozen-thawed semen samples were incubated for 5 hours at 37°C for determination of post-thaw incubation resistance. Motility, HOST, TUNEL, Rh123-PI, and CTC tests were performed at 0 hour and 3rd and 5th hours of post-thaw incubation to evaluate the efficacy of all experimental groups. The RTSP10 and RTSP10C groups were noted to provide the best protection on motility, plasma membrane integrity, DNA integrity, and mitochondrial function of cryopreserved ram semen. On the other hand, the best protection against cryo-capacitation was observed in RTSP15 and RTSP15C groups. The addition of cysteine was found to be effective when the higher (15%) or lower (1%) doses of RTSP were used, as well as for no use of RTSP.
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Affiliation(s)
- Elif Gökçe
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Tekirdag Namık Kemal University, Tekirdağ, Turkey
| | - Burcu Üstüner
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Bursa Uludag University, Bursa, Turkey
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Monaco D, Lacalandra GM, Ansar Z, Trerotoli P, Mulligan BP, Osman TK. The Effect of Cushioned Centrifugation, with and without Enzymatic Reduction of Viscosity, on the Motility Pattern and Kinematic Parameters of Dromedary Camel Bull Spermatozoa. Animals (Basel) 2023; 13:2685. [PMID: 37684949 PMCID: PMC10487258 DOI: 10.3390/ani13172685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 09/10/2023] Open
Abstract
In order to contribute to the development of semen processing procedures in camelids, the aims of the present study were to evaluate (i) the effect of 35% seminal plasma incubation on dromedary camel epididymal sperm motility and kinematic parameters, (ii) the effects of centrifugation, with cushion fluid and enzymatic reduction of viscosity (Papain + E64) during ejaculate processing, on the motility and kinematic parameters of dromedary camel ejaculates. The incubation with seminal plasma significantly reduced the percentage of progressively motile spermatozoa as well as the proportion of medium progressive spermatozoa whilst increasing the percentage of non-progressive spermatozoa. The centrifugation procedure improved the sperms' kinematic parameters, and the highest values were observed for samples centrifugated with cushion fluid. The samples treated with Papain + E64 showed a significant increase in both total and medium progressive spermatozoa, along with a reduction of non-progressive spermatozoa (p < 0.05). The results of this investigation show that a simple, cheap, and effective procedure, such as cushioned centrifugation, could improve the motility patterns of dromedary camel spermatozoa; in combination with enzymatic reduction of viscosity, this method leads to the best results in terms of recovery rates and sperms' kinematic parameters.
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Affiliation(s)
- Davide Monaco
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano (BA), Italy
| | | | - Zeeshan Ansar
- Department of Advanced Biotechnology and Research, Salam Veterinary Group, Buraydah 51911, Saudi Arabia
| | - Paolo Trerotoli
- Interdisciplinary Department of Medicine, University of Bari Aldo Moro, 70124 Bari, Italy
| | | | - Taher Kamal Osman
- Department of Advanced Biotechnology and Research, Salam Veterinary Group, Buraydah 51911, Saudi Arabia
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8
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Effect of the addition of antifreeze protein type I on the quality of post-thawed domestic cat epididymal sperm. ZYGOTE 2023; 31:240-245. [PMID: 36919856 DOI: 10.1017/s0967199422000521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Cryopreservation of domestic cat semen is mainly performed as a model for the establishment of endangered wild feline protocols. The supplementation of antifreeze protein type I (AFP I) to cryopreservation medium has shown improvement in frozen-thawed sperm quality in other species, but its effect on cat semen has not yet been tested. This study aimed to assess the addition of AFP I to cryopreservation medium in domestic cats. Sperm was obtained from the cauda epididymis of orchiectomized cats; sperm was then pooled in Tris buffer and allocated into three treatments, according to AFP I final concentration: 0 (control), 0.1, and 0.5 µg/ml. Nine replicates were cryopreserved in a two-step protocol and subsequently thawed at 37°C for 30 s. There was no difference (P > 0.05) among the control, 0.1 and 0.5 µg/ml groups for parameters such as motility, vitality, functional membrane integrity, mature chromatin, normal morphology, and sperm binding to egg perivitelline membrane. In the 0.5 μg/ml group only, percentages of live sperm with intact acrosome and of sperm with most inactive mitochondria (DAB III) showed a significant reduction, along with a tendency (P = 0.053) to an increase in the percentage of sperm with most active mitochondria (DAB II). In conclusion, the supplementation of 0.1 and 0.5 µg/ml of AFP I did not promote consistent beneficial effects on the overall sperm cryotolerance in domestic cats.
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Fernández-Alegre E, Lacalle E, Soriano-Úbeda C, González-Montaña JR, Domínguez JC, Casao A, Martínez-Pastor F. Bos taurus and Cervus elaphus as Non-Seasonal/Seasonal Models for the Role of Melatonin Receptors in the Spermatozoon. Int J Mol Sci 2022; 23:ijms23116284. [PMID: 35682961 PMCID: PMC9181011 DOI: 10.3390/ijms23116284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/28/2022] [Accepted: 06/01/2022] [Indexed: 02/04/2023] Open
Abstract
Melatonin is crucial in reproduction due its antioxidant, hormonal, and paracrine action. Melatonin membrane receptors (MT1/MT2) have been confirmed on spermatozoa from several species, but functionality studies are scarce. To clarify their role in ruminants as reproductive models, bull (Bos taurus, non-seasonal) and red deer (Cervus elaphus, highly seasonal) spermatozoa were analyzed after 4 h of incubation (38 °C, capacitating media) in 10 nM melatonin, MT1/MT2 agonists (phenylmelatonin and 8M-PDOT), and antagonists (luzindole and 4P-PDOT). Motility and functionality (flow cytometry: viability, intracellular calcium, capacitation status, reactive oxygen species (ROS) production, and acrosomal and mitochondrial status) were assessed. In bull, MT1 was related to sperm viability preservation, whereas MT2 could modulate cell functionality to prevent excess ROS produced by the mitochondria; this action could have a role in modulating sperm capacitation. Deer spermatozoa showed resistance to melatonin and receptor activation, possibly because the samples were of epididymal origin and collected at the breeding season's peak, with high circulating melatonin. However, receptors could be involved in mitochondrial protection. Therefore, melatonin receptors are functional in the spermatozoa from bull and deer, with different activities. These species offer models differing from traditional laboratory experimental animals on the role of melatonin in sperm biology.
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Affiliation(s)
- Estela Fernández-Alegre
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Bianor Biotech SL, 24071 Leon, Spain
| | - Estíbaliz Lacalle
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Bianor Biotech SL, 24071 Leon, Spain
| | - Cristina Soriano-Úbeda
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 Leon, Spain
| | - José Ramiro González-Montaña
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Medicine, Surgery and Veterinary Anatomy (Animal Medicine and Surgery), University of León, 24071 Leon, Spain
| | - Juan Carlos Domínguez
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Medicine, Surgery and Veterinary Anatomy (Animal Medicine and Surgery), University of León, 24071 Leon, Spain
| | - Adriana Casao
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, 50013 Zaragoza, Spain;
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 Leon, Spain
- Correspondence: ; Tel.: +34-987-291-491
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10
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Epididymal and ejaculated sperm differ on their response to the cryopreservation and capacitation processes in mouflon (Ovis musimon). Sci Rep 2019; 9:15659. [PMID: 31666633 PMCID: PMC6821854 DOI: 10.1038/s41598-019-52057-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/23/2019] [Indexed: 12/27/2022] Open
Abstract
Spermatozoa must undergo the process of capacitation to fertilize the egg which involves a cell destabilizing process. Capacitation-like changes such as protein tyrosine phosphorylation (PTP) are associated with cryopreservation. The aim of this study was to compare the cryoresistance and capacitation response of epididymal and ejaculated sperm of European mouflon (Ovis musimon). Post-thaw sperm parameters were analysed from epididymal and ejaculated samples cryopreserved by slow-freezing or ultrarapid-freezing for comparison. Sperm capacitation status was assessed by the semiquantification of PTP levels, cell localization of PTP and kinematic clustering. Epididymal sperm had higher cryoresistance than ejaculated sperm in both freezing techniques, and slow-freezing rendered better results than ultrarapid-freezing in both sperm samples. Ejaculated sperm had higher PTP levels than epididymal sperm and, additionally, ejaculated sperm showed higher phosphorylation in capacitating (CA) than in non-capacitating (NCA) conditions while there was no effect of medium in epididymal sperm. There was a higher tail PTP in CA than in NCA conditions in both types of sperm. Kinematic analysis revealed that the cluster associated with hyperactivated movement increased in ejaculated sperm incubated in CA whereas no effect of medium was observed in epididymal sperm clusters. In conclusion, epididymal sperm showed better freezability and lower capacitation status compared to ejaculated sperm.
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Domingo P, Olaciregui M, González N, De Blas I, Gil L. Effects of seminal plasma and different cryoprotectants on rabbit sperm preservation at 16°C. Exp Anim 2018; 67:413-420. [PMID: 29899185 PMCID: PMC6219875 DOI: 10.1538/expanim.17-0152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The purpose of this research was to assess whether the presence of seminal plasma (SP)
can improve sperm quality of rabbit spermatozoa stored at 16°C for 72 h and moreover
evaluate the cryoprotectant effects of glycerol, N-N-Dimethylformamide (DMF), and
N-methyl-2-pyrrolidone (NMP). Semen samples were pooled and divided in eight fractions.
Four of them were diluted with INRA (extender A), INRA with 6% glycerol (extender B), INRA
with 6% DMF (extender C), or INRA with 6% NMP (extender D), respectively. The other four
fractions were centrifuged, and the supernatant was removed in order to eliminate SP. Each
sample was then resuspended with extender A, B, C, or D, respectively. All samples were
stored at 16°C and analysed at 4, 24, 48, and 72 h by ISAS®, vitality test, HOS
test, and acrosome integrity test. After analyse of the results, SP samples showed a
significantly higher percentage (P=0.020) in the HOS
test (71.9 ± 1.6%) than non-SP samples (66.5 ± 1.6%). Non-SP samples had better results
for kinematic parameters. Extenders A and C showed great results for the percentage of
motile spermatozoa (63.1 ± 4.3% and 63.4 ± 3.7%, respectively), vitality (88.9 ± 2.6% and
87.7 ± 2.7%, respectively), and HOS test (68.9 ± 1.4% and 75.2 ± 1.4%, respectively).
Extenders B and D showed worse data for sperm quality. These results suggest that SP has a
protective effect on rabbit sperm membranes and maintains better sperm motility. The
addition of glycerol and NMP to INRA does not improve rabbit sperm quality; nevertheless,
the DMF cryoprotectant exerts a protective effect on the membrane of spermatozoa,
improving seminal quality during rabbit sperm preservation at 16°C.
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Affiliation(s)
- Paula Domingo
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Maite Olaciregui
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Noelia González
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Ignacio De Blas
- Department of Animal Pathology, Animal Health Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Lydia Gil
- Department of Animal Pathology, Obstetric and Reproduction Area, Faculty of Veterinary Medicine, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
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12
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Álvarez-Rodriguez M, Álvarez M, Anel-López L, Guerra C, Chamorro CA, Anel L, de Paz P, Martínez-Pastor F. Effect of length of time post-mortem on quality and freezing capacity of Cantabric chamois (Rupicapra pyrenaica parva) epididymal spermatozoa. Anim Reprod Sci 2018; 198:184-192. [PMID: 30301620 DOI: 10.1016/j.anireprosci.2018.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/17/2018] [Accepted: 09/27/2018] [Indexed: 12/17/2022]
Abstract
Genome Resource Banks are keystones in the ex-situ conservation of wild species. Post-mortem (PM) collection of epididymal spermatozoa is an opportunistic and valuable source of germplasm, the time from the death of the animal limits its use. Seeking to improve germplasm preservation strategies for the chamois (Rupicapra sp.), the effect of PM time on epididymal sperm quality and freezability was studied using the Cantabrian chamois. Samples were classified according to PM collection time, up to 216 h (refrigerated), and cryopreserved (Tris-citric acid-fructose, 430 mOsm/kg, 15% egg yolk, 8% glycerol; freezing at -20 °C/min). Sperm quality was assessed after recovery and post-thawing (motility by CASA, HOS test, abnormal forms, cytoplasmic droplets, and viability and acrosomal damage by flow cytometry). The sperm mass pH and osmolality showed a positive correlation with time. Total sperm motility dropped after 2 days PM, with progressivity and sperm velocities remained similar up to 3 days PM. Sperm freezability was acceptable, with the post-thawing HOST, motility, progressivity, VAP, VCL, VSL and BCF negatively correlating with PM time. Overall, chamois epidydimal samples were not adequate for preservation after 6 days PM. Freezability capacity could make these spermatozoa suitable for specific ART even if kept refrigerated for several days PM.
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Affiliation(s)
- M Álvarez-Rodriguez
- Department of Clinical and Experimental Medicine (IKE), BKH, Obstetrics and Gynecology, Linköping University, Linköping, Sweden; Department of Animal Health and Anatomy, Veterinary Faculty, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Álvarez
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - L Anel-López
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - C Guerra
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain
| | - C A Chamorro
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - L Anel
- Department of Medicine, Surgery and Veterinary Anatomy, Universidad de León, León, Spain; INDEGSAL, Universidad de León, 24071 León, Spain
| | - P de Paz
- INDEGSAL, Universidad de León, 24071 León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, Spain
| | - F Martínez-Pastor
- INDEGSAL, Universidad de León, 24071 León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, Spain.
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13
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Pinyopummin A, Mahasawangkul S, Nunklang G, Kornkaewrat K, Laopiem S, Koonjaenak S, Wattananit P. Supplemented stallion seminal plasma can improve impaired motility due to the dilution effect in chilled Asian elephant sperm. Reprod Domest Anim 2018; 53:525-533. [PMID: 29405472 DOI: 10.1111/rda.13141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/26/2017] [Indexed: 01/14/2023]
Abstract
The dilution effect and effect of restoring seminal plasma (SP) proportion in diluted semen were determined in chilled Asian elephant sperm. Semen was collected from eight males, and samples with ≥30% motile sperm were used in the study. Tris-glucose-egg yolk extender (TE) was used for cooled storage at 4°C for 48 hr. In experiment 1 (n = 18), semen was diluted to 1:1, 1:3, 1:7 and 1:15 with TE (volume per volume). There were no significant changes in sperm viability and sperm with normal acrosome integrity among dilutions, but sperm motility and motility velocities were greater (p < .05) in the 1:1 dilution than those of the 1:7 and 1:15 dilutions at 48 hr of storage. In experiment 2, supplemented SP was derived from elephants and stallions. In experiment 2.1, diluted semen (1:7 dilution) was restored with SP to obtain a 1:2 proportion (n = 8). Sperm motility, viability and sperm with normal acrosome integrity were similar among treatments, but motility velocities were greater (p < .05) with stallion SP at 48 hr of storage. In experiment 2.2, diluted semen (1:15 dilution) was restored with SP to obtain a 1:3 proportion (n = 10). Sperm viability and sperm with normal acrosome integrity were similar among treatments at 48 hr of storage. However, sperm motility and motility velocities were greater (p < .05) with stallion SP than those of others. In conclusion, elephant sperm motility was affected by a dilution effect and restoration of SP proportion with stallion SP, but not with elephant SP, could improve motility in chilled highly diluted sperm.
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Affiliation(s)
- A Pinyopummin
- Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
| | - S Mahasawangkul
- The National Elephant Institute, The Forest Industry Organization, Lampang, Thailand
| | - G Nunklang
- Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
| | - K Kornkaewrat
- Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
| | - S Laopiem
- Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
| | - S Koonjaenak
- Faculty of Veterinary Medicine, Kasetsart University, Chatuchak, Bangkok, Thailand
| | - P Wattananit
- Faculty of Veterinary Medicine, Kasetsart University, Chatuchak, Bangkok, Thailand
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14
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Bergstein-Galan TG, Weiss RR, Kozicki LE, Bicudo SD. Sperm subpopulations in ejaculated sperm and spermatozoa recovered from ovine epididymides up to 48 h after death. Anim Reprod Sci 2017; 187:20-27. [DOI: 10.1016/j.anireprosci.2017.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 08/06/2017] [Accepted: 10/04/2017] [Indexed: 02/03/2023]
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15
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Bergstein-Galan TG, Weiss RR, Bertol MAF, Abreu ACM, Busato E, Kozicki LE, Bicudo SD. Quality and fertility of frozen ovine spermatozoa from epididymides stored at room temperature (18–25 °C) for up to 48 h post mortem. Theriogenology 2017; 96:69-75. [DOI: 10.1016/j.theriogenology.2017.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 03/28/2017] [Accepted: 04/01/2017] [Indexed: 11/16/2022]
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16
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Nichi M, Rijsselaere T, Losano JDA, Angrimani DSR, Kawai GKV, Goovaerts IGF, Van Soom A, Barnabe VH, De Clercq JBP, Bols PEJ. Evaluation of epididymis storage temperature and cryopreservation conditions for improved mitochondrial membrane potential, membrane integrity, sperm motility and in vitro
fertilization in bovine epididymal sperm. Reprod Domest Anim 2016; 52:257-263. [DOI: 10.1111/rda.12888] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 10/10/2016] [Indexed: 11/27/2022]
Affiliation(s)
- M Nichi
- University of Sao Paulo; Sao Paulo Brazil
| | | | - JDA Losano
- University of Sao Paulo; Sao Paulo Brazil
| | | | - GKV Kawai
- University of Sao Paulo; Sao Paulo Brazil
| | | | | | - VH Barnabe
- University of Sao Paulo; Sao Paulo Brazil
| | | | - PEJ Bols
- University of Antwerp; Antwerp Belgium
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17
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Álvarez-Rodríguez M, Álvarez M, Anel-López L, López-Urueña E, Manrique P, Borragán S, Morrell J, de Paz P, Anel L. Effect of colloid (Androcoll-Bear, Percoll, and PureSperm) selection on the freezability of brown bear (Ursus arctos) sperm. Theriogenology 2016; 85:1097-105. [DOI: 10.1016/j.theriogenology.2015.11.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 11/17/2015] [Accepted: 11/24/2015] [Indexed: 11/30/2022]
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18
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Ledesma A, Manes J, Ríos G, Aller J, Cesari A, Alberio R, Hozbor F. Effect of Seminal Plasma on Post-Thaw Quality and Functionality ofCorriedaleRam Sperm Obtained by Electroejaculation and Artificial Vagina. Reprod Domest Anim 2015; 50:386-92. [DOI: 10.1111/rda.12500] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 01/15/2015] [Indexed: 11/30/2022]
Affiliation(s)
- A Ledesma
- Facultad de Ciencias Agrarias; Universidad Nacional de Mar del Plata; Balcarce Argentina
| | - J Manes
- Biotecnología de la Reproducción; Departamento de Producción Animal; Instituto Nacional de Tecnología Agropecuaria (INTA); Balcarce Argentina
| | - G Ríos
- Biotecnología de la Reproducción; Departamento de Producción Animal; Instituto Nacional de Tecnología Agropecuaria (INTA); Balcarce Argentina
| | - J Aller
- Biotecnología de la Reproducción; Departamento de Producción Animal; Instituto Nacional de Tecnología Agropecuaria (INTA); Balcarce Argentina
| | - A Cesari
- Biología de microorganismos y gametas, Instituto de Investigaciones Biológicas-CONICET; Universidad Nacional de Mar del Plata; Mar del Plata Argentina
| | - R Alberio
- Biotecnología de la Reproducción; Departamento de Producción Animal; Instituto Nacional de Tecnología Agropecuaria (INTA); Balcarce Argentina
| | - F Hozbor
- Biotecnología de la Reproducción; Departamento de Producción Animal; Instituto Nacional de Tecnología Agropecuaria (INTA); Balcarce Argentina
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19
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Effect of dilution rate on feline urethral sperm motility, viability, and DNA integrity. Theriogenology 2014; 82:1273-80. [DOI: 10.1016/j.theriogenology.2014.08.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 08/19/2014] [Accepted: 08/19/2014] [Indexed: 12/16/2022]
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20
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Pradiee J, Esteso M, Castaño C, Toledano-Díaz A, López-Sebastián A, Santiago-Moreno J. Cryopreservation of epididymal sperm from ibexes (Capra pyrenaica) using short equilibration time with glycerol. Theriogenology 2014; 82:525-8. [DOI: 10.1016/j.theriogenology.2014.05.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 05/12/2014] [Accepted: 05/12/2014] [Indexed: 11/27/2022]
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21
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Fernández-Gago R, Domínguez JC, Martínez-Pastor F. Seminal plasma applied post-thawing affects boar sperm physiology: a flow cytometry study. Theriogenology 2013; 80:400-10. [PMID: 23756043 DOI: 10.1016/j.theriogenology.2013.05.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 04/28/2013] [Accepted: 05/01/2013] [Indexed: 12/31/2022]
Abstract
Cryopreservation induces extensive biophysical and biochemical changes in the sperm. In the present study, we used flow cytometry to assess the capacitation-like status of frozen-thawed boar spermatozoa and its relationship with intracellular calcium, assessment of membrane fluidity, modification of thiol groups in plasma membrane proteins, reactive oxygen species (ROS) levels, viability, acrosomal status, and mitochondrial activity. This experiment was performed to verify the effect of adding seminal plasma on post-thaw sperm functions. To determine these effects after cryopreservation, frozen-thawed semen from seven boars was examined after supplementation with different concentrations of pooled seminal plasma (0%, 10%, and 50%) at various times of incubation from 0 to 4 hours. Incubation caused a decrease in membrane integrity and an increase in acrosomal damage, with small changes in other parameters (P > 0.05). Although 10% seminal plasma showed few differences with 0% (ROS increase at 4 hours, P < 0.05), 50% seminal plasma caused important changes. Membrane fluidity increased considerably from the beginning of the experiment, and ROS and free thiols in the cell surface increased by 2 hours of incubation. By the end of the experiment, viability decreased and acrosomal damage increased in the 50% seminal plasma samples. The addition of 50% of seminal plasma seems to modify the physiology of thawed boar spermatozoa, possibly through membrane changes and ROS increase. Although some effects were detrimental, the stimulatory effect of 50% seminal plasma could favor the performance of post-thawed boar semen, as showed in the field (García JC, Domínguez JC, Peña FJ, Alegre B, Gonzalez R, Castro MJ, Habing GG, Kirkwood RN. Thawing boar semen in the presence of seminal plasma: effects on sperm quality and fertility. Anim Reprod Sci 2010;119:160-5).
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Affiliation(s)
- Rocío Fernández-Gago
- Department of Medicine, Surgery and Veterinary Anatomy, University of León, León, Spain
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22
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TOYONAGA M, TSUTSUI T. The Quality of Cryopreserved Sperm Collected from Feline Caudal Epididymides Using Seminal Plasma. J Vet Med Sci 2012; 74:1349-53. [DOI: 10.1292/jvms.11-0175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Mari TOYONAGA
- Department of Reproduction, Nippon Veterinary and Life Science University
- International Institute of Small Animal Medicine, Bio Plus, AHB Inc
- Department of Reproduction, Nippon Veterinary and Life Science University, 1–7–1 Kyonan-cho, Musashino-shi, Tokyo 180–8602, Japan
- International Institute of Small Animal Medicine, Bio Plus, AHB Inc., 2–7–2 Sumiyoshi, Koutou-ku, Tokyo 135–0002, Japan
| | - Toshihiko TSUTSUI
- Department of Reproduction, Nippon Veterinary and Life Science University
- International Institute of Small Animal Medicine, Bio Plus, AHB Inc
- Department of Reproduction, Nippon Veterinary and Life Science University, 1–7–1 Kyonan-cho, Musashino-shi, Tokyo 180–8602, Japan
- International Institute of Small Animal Medicine, Bio Plus, AHB Inc., 2–7–2 Sumiyoshi, Koutou-ku, Tokyo 135–0002, Japan
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23
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Nicolas M, Alvarez M, Borragán S, Martinez-Pastor F, Chamorro CA, Alvarez-Rodriguez M, de Paz P, Anel L. Evaluation of the qualitative and quantitative effectiveness of three media of centrifugation (Maxifreeze, Cushion Fluid Equine, and PureSperm 100) in preparation of fresh or frozen-thawed brown bear spermatozoa. Theriogenology 2011; 77:1119-28. [PMID: 22154477 DOI: 10.1016/j.theriogenology.2011.10.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 09/28/2011] [Accepted: 10/08/2011] [Indexed: 11/19/2022]
Abstract
Centrifugation is a crucial procedure in sperm cryopreservation protocols of brown bear (Ursus arctos), because the semen must be processed to increase sperm concentration and/or clean urine-contaminated samples. The efficacy of three media for centrifugation (Maxifreeze [IMV technologies, L'Aigle, France], Cushion Fluid Equine (Minitübe, Tiefenbach, Germany), and PureSperm [Nidacon, Gothenburg, Sweden]) on the quality of bear spermatozoa was evaluated. In experiment one, two cushioned media used for protecting against mechanical stress during centrifugation were analyzed. In experiment two, a density gradient based on PureSperm was assessed in relation to the maximum retrieval and the quality of fresh spermatozoa, and the freezability of the spermatozoa selected in this density gradient was studied in experiment three. Finally, the selection of frozen-thawed sperm using PureSperm was analyzed in experiment four. Our results indicate that the use of dense isotonic cushion solutions (Maxifreeze, Cushion Fluid Equine) in centrifugation did not improve the quality of recovered spermatozoa compared with standard centrifugation. However, a density gradient prepared with PureSperm improved the quality of spermatozoa in fresh semen and frozen-thawed semen, but the spermatozoa selected from the fresh sample with this density gradient did not show a better resistance to freezing with this density gradient in comparison with the control sample.
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Affiliation(s)
- M Nicolas
- ITRA-ULE, INDEGSAL, University of León, León, Spain
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24
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Kershaw-Young C, Maxwell W. The effect of seminal plasma on alpaca sperm function. Theriogenology 2011; 76:1197-206. [DOI: 10.1016/j.theriogenology.2011.05.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 05/23/2011] [Accepted: 05/23/2011] [Indexed: 10/17/2022]
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25
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Effect of storage temperature during transport of ovaries on in vitro embryo production in Iberian red deer (Cervus elaphus hispanicus). Theriogenology 2011; 75:65-72. [DOI: 10.1016/j.theriogenology.2010.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2009] [Revised: 07/12/2010] [Accepted: 07/18/2010] [Indexed: 11/24/2022]
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26
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Effects on brown bear (Ursus arctos) spermatozoa freezability of different extender and dilution ratios used for pre-freezing centrifugation. EUR J WILDLIFE RES 2010. [DOI: 10.1007/s10344-010-0420-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Thuwanut P, Chatdarong K. Incubation of post-thaw epididymal cat spermatozoa with seminal plasma. Reprod Domest Anim 2010; 44 Suppl 2:381-4. [PMID: 19754610 DOI: 10.1111/j.1439-0531.2009.01436.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
In domestic cats, epididymal spermatozoa have lower initial motility and viability than ejaculated spermatozoa and it is possible that seminal plasma compounds are behind these effects. The aim of this study was to investigate whether co-incubation of post-thaw epididymal cat spermatozoa with seminal plasma was able to improve sperm quality. Epididymal cat spermatozoa from 11 cats were cryopreserved. After thawing, each sperm sample was divided into two aliquots, centrifuged and incubated with two different media; Tris buffer (control) or pooled seminal plasma (treatment). Sperm quality was observed at 0, 2, 4 and 6 h after incubation. The results demonstrated that all of the sperm parameters except acrosome integrity were lower in the treatment group compared to the control group (p < 0.05); the percentages of motility (46.4 +/- 15.4 vs 40.0 +/- 9.4), the scores of progressive motility (3.1 +/- 0.4 vs 2.8 +/- 0.5), the percentages of spermatozoa with intact plasma membrane (46.3 +/- 9.7 vs 39.6 +/- 8.9) and intact acrosome (36.5 +/- 16.2 vs 32.9 +/- 15.1), as well as at all time points. In conclusion, the seminal plasma seems less beneficial to the post-thaw epididymal cat spermatozoa than the Tris buffer.
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Affiliation(s)
- P Thuwanut
- Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
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28
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Domínguez-Rebolledo ÁE, Fernández-Santos MR, Bisbal A, Ros-Santaella JL, Ramón M, Carmona M, Martínez-Pastor F, Garde JJ. Improving the effect of incubation and oxidative stress on thawed spermatozoa from red deer by using different antioxidant treatments. Reprod Fertil Dev 2010; 22:856-70. [DOI: 10.1071/rd09197] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Accepted: 12/10/2009] [Indexed: 11/23/2022] Open
Abstract
Antioxidants could improve sperm media, extending the viability of spermatozoa and protecting their DNA. The protective ability of lipoic acid, melatonin, Trolox and crocin was tested on red deer spermatozoa incubated at 37°C. Cryopreserved spermatozoa were thawed and incubated with 1 mM or 0.1 mM of each antioxidant, with or without oxidative stress (100 μM Fe2+). Motility (CASA), viability, mitochondrial membrane potential and acrosomal status were assessed. Lipoperoxidation (malondialdehyde production), intracellular reactive oxygen species (ROS) and DNA status (TUNEL) were checked at 4 h. Incubation alone increased ROS and decreased motility. Oxidative stress intensified these effects, increasing lipoperoxidation and DNA damage. Lipoic acid had little protective effect, whereas 1 mM melatonin showed limited protection. Trolox lowered ROS and lipoperoxidation both in oxidised and non-oxidised samples. In oxidised samples, Trolox prevented DNA and acrosomal damage, and ameliorated motility. Crocin at 1 mM showed similar results to Trolox, but noticeably stimulated motility and had no effect on lipoperoxidation. In a second experiment, a broader range of crocin and melatonin concentrations were tested, confirming the effects of crocin (positive effects noticeable at 0.5–0.75 mM), but showing an increase in lipoperoxidation at 2 mM. Melatonin was increasingly effective at 2.5 and 5 mM (ROS, lipoperoxidation and DNA status). Crocin seems a promising new antioxidant, but its particular effects on sperm physiology must be further studied, especially the consequences of motility stimulation and confirming its effect on lipoperoxidation. Melatonin might be useful at relatively high concentrations, compared to Trolox.
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29
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Domínguez-Rebolledo AE, Fernández-Santos MR, García-Alvarez O, Maroto-Morales A, Garde JJ, Martínez-Pastor F. Washing increases the susceptibility to exogenous oxidative stress in red deer spermatozoa. Theriogenology 2009; 72:1073-84. [PMID: 19733389 DOI: 10.1016/j.theriogenology.2009.06.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 06/01/2009] [Accepted: 06/03/2009] [Indexed: 11/18/2022]
Abstract
The effects of routine sperm work are often overlooked. We assessed the effect of washing cryopreserved epididymal spermatozoa from red deer (Cervus elaphus hispanicus, Helzheimer 1909). After thawing, epididymal samples (four stags) were diluted in TALP-HEPES. A split was left untouched, another was centrifuged (300 x g, 5 min) and resuspended, and a third was centrifuged and the supernatant substituted by fresh TALP-HEPES (washing). Each split was supplemented either with nothing, 1mM of the antioxidant Trolox, 100 microM of the oxidant Fe (with ascorbate), or both. The 3x4 treatments were incubated at 37 degrees C and assessed each hour up to 3h for motility (computer-aided sperm assessment) and viability/apoptosis plus mitochondrial status (YO-PRO-1, propidium iodide, Mitotracker Deep Red; flow cytometry). DNA damage at 4h was assessed using the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling assay. Centrifugation alone affected neither sperm quality nor DNA, and the oxidant had no effect in control or centrifuged samples. Washed samples were not different than control, but oxidant decreased motility, mitochondrial status and viability, and altered the motility subpopulation pattern, being partially suppressed by Trolox. Spermatozoa with damaged DNA dramatically increased in the washed-oxidized sample (from 22.30+/-3.52% to 67.94+/-5.07%), but not when antioxidant was present. Although samples from different males behaved similarly, male-to-male variability was detected regarding susceptibility to oxidative damage after washing. We concluded that, although red deer thawed spermatozoa seemed resilient to centrifugation, the vulnerability to oxidative stress after washing makes it advisable to supplement manipulation media with antioxidants, especially taking into account male-to-male variability.
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García-Álvarez O, Maroto-Morales A, Martínez-Pastor F, Garde J, Ramón M, Fernández-Santos M, Esteso M, Pérez-Guzmán M, Soler A. Sperm characteristics and in vitro fertilization ability of thawed spermatozoa from Black Manchega ram: Electroejaculation and postmortem collection. Theriogenology 2009; 72:160-8. [DOI: 10.1016/j.theriogenology.2009.02.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Revised: 02/13/2009] [Accepted: 02/17/2009] [Indexed: 10/20/2022]
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Fernández-Santos MR, Domínguez-Rebolledo AE, Esteso MC, Garde JJ, Martínez-Pastor F. Refrigerated Storage of Red Deer Epididymal Spermatozoa in the Epididymis, Diluted and with Vitamin C Supplementation. Reprod Domest Anim 2009; 44:212-20. [DOI: 10.1111/j.1439-0531.2007.01032.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Martínez-Pastor F, Martínez F, Alvarez M, Maroto-Morales A, García-Alvarez O, Soler AJ, Garde JJ, de Paz P, Anel L. Cryopreservation of Iberian red deer (Cervus elaphus hispanicus) spermatozoa obtained by electroejaculation. Theriogenology 2009; 71:628-38. [PMID: 18976805 DOI: 10.1016/j.theriogenology.2008.09.033] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Revised: 09/13/2008] [Accepted: 09/14/2008] [Indexed: 10/21/2022]
Abstract
We tested extenders and freezing protocols for Iberian red deer semen. Samples were obtained by electroejaculation (10 stags), and analyzed for motility (CASA), viability (propidium ioide), acrosomal (PNA-FITC) and mitochondrial status (JC-1). Samples were diluted 1+1 in extender, cooled and adjusted for glycerol (extender with higher glycerol concentration), brought to 160 x 10(6)mL(-1) and frozen. Four experiments were carried out, repeating sperm analysis after thawing to compare treatments. In a first experiment, seven samples were frozen using Triladyl (20% egg yolk) and UL extender (Tes-Tris-fructose, 15% egg yolk, 4% glycerol). Triladyl yielded higher motility after thawing. In a second trial, 17 samples were frozen using Triladyl, Andromed, Bioxcell, and UL with 8% LDL (low-density lipoproteins). Triladyl, and Andromed performed better than Bioxcell on motility, and than UL-LDL on viability and acrosomal status. In a third experiment, the performance of freezing the sperm-rich ejaculate fraction versus the whole ejaculate was tested on nine samples. The sperm-rich ejaculate fraction not only rendered more motile and viable spermatozoa but also showed higher freezability (higher motile spermatozoa recovery). In a fourth experiment, we tried three modifications of the freezing protocol, for improving the freezability of low concentration samples: prior removal of seminal plasma; replacing extender (second fraction) for pure glycerol to reduce dilution; and performing only the 1+1 dilution, not the second dilution. No differences were found, although only three samples could be used. Both Triladyl and Andromed were deemed appropriate for freezing Iberian red deer semen, and the rich fraction should be selected for freezing.
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Affiliation(s)
- F Martínez-Pastor
- Biology of Reproduction Group, National Wildlife Research Institute (IREC), CSIC-UCLM-JCCM, and Institute for Regional Development (IDR), 02071 Albacete, Spain.
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Muiño-Blanco T, Pérez-Pé R, Cebrián-Pérez JA. Seminal Plasma Proteins and Sperm Resistance to Stress. Reprod Domest Anim 2008; 43 Suppl 4:18-31. [DOI: 10.1111/j.1439-0531.2008.01228.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Sperm parameters on Iberian red deer: electroejaculation and post-mortem collection. Theriogenology 2008; 70:216-26. [PMID: 18499244 DOI: 10.1016/j.theriogenology.2008.04.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Revised: 04/02/2008] [Accepted: 04/04/2008] [Indexed: 11/21/2022]
Abstract
Artificial reproductive technologies (ART) for cervids have improved, but a need remains for the collection of basic data. We studied two models of sperm collection in Iberian red deer, post-mortem (PM) in a wild population (179 samples) and by electroejaculation (EE) in a farmed population (37 samples), recording: testicular and epididymal weight, testicular diameter, sperm quantity, pH and osmolality and spermatozoa quality (motility by CASA, abnormal forms, cytoplasmic droplets, viability and acrosomal status). We tested the relationship of these parameters with stag age and compared the two models (PM and EE; medians showed). Genitalia parameters were linearly related to stag age (testicular diameter: 31.5-50.5mm for 2-9 years). Total number of spermatozoa collected were PM: 2.5x10(9) and EE: 3.6x10(9) (P>0.05), increasing with age only for PM. We found a positive relationship between testicular size and spermatozoa collected for PM. Osmolality and pH were PM: 6.28 and 378mOsm/kg; EE: 7.63 and 309mOsm/kg (P<0.05). The pH increased with age only for EE. Percentage of motile spermatozoa was similar for PM and EE, but motility quality was lower for PM. Abnormal forms, proximal and distal droplets were lower for EE (22%, 1.3%, 1.5% vs. PM: 23%, 4.3%, 83%). Viability was similar (74%) and intact acrosomes were higher for EE (97% vs. 89%). Both PM and EE samples could be used for germplasm banking. This study contributes with new data on red deer spermatology and for the development of ART in cervids.
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Umapathy G, Sontakke SD, Reddy A, Shivaji S. Seasonal variations in semen characteristics, semen cryopreservation, estrus synchronization, and successful artificial insemination in the spotted deer (Axis axis). Theriogenology 2007; 67:1371-8. [PMID: 17383719 DOI: 10.1016/j.theriogenology.2007.01.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2006] [Accepted: 01/16/2007] [Indexed: 11/16/2022]
Abstract
Ten adult male spotted deer were monitored over a 2-year interval to determine seasonal variations in testicular size, semen characteristics and serum testosterone concentrations, and to determine if there was an association between season and type of antler. Mean (+/-S.E.M.) testicular volume (118.8+/-4.6 cm(3)), serum testosterone concentration (1.2+/-0.1 ng/mL), semen volume (4.1+/-0.6 mL), sperm concentration (338.3+/-24.9 x 10(6) mL(-1)), percentage of morphologically normal sperm (79.1+/-2.8%), and percentage of motile sperm (66.5+/-1.5%) were higher (P<0.05) in hard antler deer (peaked from March to May) than in deer with velvet antlers or in deer in which the antler has been shed. Thus, March-May was considered the physiologic breeding season for these deer; at this time, all stags had hard antlers. Furthermore, a Tris-citrate-based semen extender containing 4% glycerol and 20% egg-yolk was adequate for cryopreservation of semen. Estrus was induced with an implant containing norgestomet, timed transcervical AI was done with fresh semen, and 3 of 10 females were pregnant at 60 days, with fawns born 120 (premature), 240 and 243 days after AI. These results were considered a model for the use of assisted reproductive techniques to conserve other critically endangered deer species of India.
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Fernández-Santos MR, Martínez-Pastor F, García-Macías V, Esteso MC, Soler AJ, de Paz P, Anel L, Garde JJ. Extender osmolality and sugar supplementation exert a complex effect on the cryopreservation of Iberian red deer (Cervus elaphus hispanicus) epididymal spermatozoa. Theriogenology 2007; 67:738-53. [PMID: 17140651 DOI: 10.1016/j.theriogenology.2006.10.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2006] [Revised: 09/30/2006] [Accepted: 10/16/2006] [Indexed: 10/23/2022]
Abstract
We have carried out two experiments to study the cryobiology of red deer epididymal spermatozoa and to improve freezing extenders: (1) effect of extender (Tris-citrate-fructose) osmolality (300-600 mOsm/kg), and (2) effect of sugar (0.4M) supplementation to the extender (no sugar, glucose, fructose, mannose, sucrose, maltose, threalose and raffinose). Sperm quality was assessed pre-freezing, post-thawing, and after 2h at 37 degrees C post-thawing: sperm motility index (SMI), acrosome integrity and membrane integrity (HOS test) were assessed subjectively; mitochondrial activity (JC-1) and membrane stability (merocyanine 540) were assessed by flow cytometry. In experiment 2, DNA status was assessed using acridine orange and flow cytometry. To find an optimal osmolality, we fitted the data to a quadratic curve. Four hundred Osmolal per kilogram rendered better results pre-freezing and post-thawing. However, post-thawing viability and most parameters after 2h incubation fitted a linear model. Osmolalities above 425 mOsm/kg were deleterious (P<0.05). In experiment 2, fructose had a positive effect respect to control after 2h of incubation at 37 degrees C post-thawing. Di and trisaccharides were deleterious. Trehalose showed impaired DNA status after 2h incubation. In conclusion, the osmolality of the extenders should be around 400 mOsm/kg, although the change from quadratic to lineal may indicate a complex effect that must be further studied. Monosaccharides may enhance red deer epididymal sperm cryopreservation, especially fructose, whereas di and trisaccharides may not be adequate.
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Affiliation(s)
- M R Fernández-Santos
- Grupo de Biología de la Reproducción, Instituto de Investigación en Recursos Cinegéticos (IREC), UCLM-CSIC-JCCM, 02071 Albacete, Spain
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Fickel J, Wagener A, Ludwig A. Semen cryopreservation and the conservation of endangered species. EUR J WILDLIFE RES 2007. [DOI: 10.1007/s10344-007-0089-z] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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