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Salgado LC, Codognoto VM, Garcia R, Canuto LEF, Denadai R, Freitas-Dell'Aqua CP, Almeida Filho RA, Sitó-Silva L, Crespilho AM, Oba E. The use of sodium caseinate in the freezing of sheep semen. Reprod Domest Anim 2024; 59:e14573. [PMID: 38712666 DOI: 10.1111/rda.14573] [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: 01/31/2024] [Revised: 04/04/2024] [Accepted: 04/18/2024] [Indexed: 05/08/2024]
Abstract
The aim of this study was to assess the addition of 2% sodium caseinate in a commercial egg yolk-based medium in frozen ovine semen. Eight Dorper males were used for the study. The ejaculate was divided into two portions and frozen without (G1) or with the addition of 2% sodium caseinate (G2). Kinetic parameters were evaluated using CASA (computer-assisted sperm analysis), and membrane and acrosome integrity as well as oxidative stress were assessed using flow cytometry. After thawing, a thermoresistance test was conducted at time points T0 and T90. For the fertility test, 100 ewes were inseminated with semen from two rams selected based on in vitro parameters, one with good post-thaw quality (+70% total motility) and the other with low post-thaw quality (-55% total motility). For the fertility test, the females were divided into 4 groups for insemination: low-quality ram without caseinate (GBS = 25) and with caseinate (GBC = 25), and high-quality ram without caseinate (GAS = 25) and with caseinate (GAC = 25). Regarding the results of sperm kinetics, there was a statistically significant difference in the parameters of average path velocity (VAP) and curvilinear velocity (VCL) between the group frozen with BotuBov and the group with added caseinate. At time point T90, straight-line velocity maintained a trend (p < .06), with BotuBov® (BB group) being superior to caseinate this time, and in the linearity parameter, caseinate was superior to BotuBov®. Flow cytometry analysis showed no difference between any of the evaluated tests. In the fertility test, there was no statistically significant difference in the pregnancy rate between the BotuBOV® group (23%, 11/48) and the sodium caseinate group (BC group) (33%, 17/52), and no differences were observed in the male versus diluent interaction (p = .70). In conclusion, sodium caseinate supplementation did not influence sperm kinetic parameters and the fertility of sheep.
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Affiliation(s)
- Letícia C Salgado
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Viviane M Codognoto
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Rodrigo Garcia
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Lucas E F Canuto
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Renan Denadai
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Camila P Freitas-Dell'Aqua
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Rogério A Almeida Filho
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Luan Sitó-Silva
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - André M Crespilho
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
| | - Eunice Oba
- Department of Veterinary Surgery and Animal Reproduction, FMVZ, São Paulo State University, UNESP, Botucatu, São Paulo, Brazil
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Antonouli S, Di Nisio V, Messini C, Samara M, Salumets A, Daponte A, Anifandis G. Sperm plasma membrane ion transporters and male fertility potential: A perspective under the prism of cryopreservation. Cryobiology 2024; 114:104845. [PMID: 38184269 DOI: 10.1016/j.cryobiol.2023.104845] [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: 10/29/2023] [Revised: 12/19/2023] [Accepted: 12/31/2023] [Indexed: 01/08/2024]
Abstract
Intracellular calcium homeostasis plays a crucial role in spermatozoa by regulating physiological functions associated with sperm quality and male fertility potential. Intracellular calcium fine balance in the sperm cytoplasm is strictly dependent on sperm surface channels including the CatSper channel. CatSpers' role is to ensure the influx of extracellular calcium, while intracellular pH alkalinization serves as a stimulus for the activation of several channels, including CatSper. Overall, the generation of intracellular calcium spikes through CatSper is essential for fertilization-related processes, such as sperm hyperactivation, acrosome reaction, egg chemotaxis, and zona pellucida penetration. Multiple lines of evidence suggest that disruption in the close interaction among ions, pH, and CatSper could impair male fertility potential. In contemporary times, the growing reliance on Medically Assisted Reproduction procedures underscores the impact of cryopreservation on gametes. In fact, a large body of literature raises concerns about the cryo-damages provoked by the freeze-thawing processes, that can affect the plasma membrane integrity, thus the structure of pivotal ion channels, and the fine regulation of both intracellular calcium and pH. This review aims to provide an overview of the importance of the CatSper channel in sperm quality and further fertilization potential. Additionally, it addresses the emerging issue of cryopreservation's impact on the functionality of this sperm channel.
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Affiliation(s)
- Sevastiani Antonouli
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece.
| | - Valentina Di Nisio
- Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, Huddinge, Stockholm, Sweden; Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Huddinge, Stockholm, Sweden.
| | - Christina Messini
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece.
| | - Maria Samara
- Department of Pathology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece.
| | - Andres Salumets
- Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, Huddinge, Stockholm, Sweden; Division of Obstetrics and Gynecology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Huddinge, Stockholm, Sweden; Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia; Competence Centre on Health Technologies, Tartu, Estonia.
| | - Alexandros Daponte
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece.
| | - George Anifandis
- Department of Obstetrics and Gynaecology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larisa, Greece.
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Li CY, Liu J, Zheng QY, Liu N, Huang XL, Wu YY, Yao XF, Tan QY, Huang Y, Hu CH, Xu CL. The effect of the mitochondria-targeted antioxidant Mito-tempo during sperm ultra-rapid freezing. Cryobiology 2024; 114:104860. [PMID: 38340888 DOI: 10.1016/j.cryobiol.2024.104860] [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: 10/10/2023] [Revised: 01/22/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
During the freeze-thaw process, human spermatozoa are susceptible to oxidative stress, which may cause cryodamage and reduce sperm quality. As a novel mitochondria-targeted antioxidant, Mito-tempo has been used for sperm cryopreservation. However, it is currently unknown what role it will play in the process of sperm ultra-rapid freezing. The purpose of this study was to investigate whether Mito-tempo can improve sperm quality during ultra-rapid freezing. In this study, samples with the addition of Mito-tempo (0, 5, 10, 20, and 40 μM) to sperm freezing medium were selected to evaluate the changes in sperm quality, antioxidant capacity and ultrastructure after ultra-rapid freezing. After ultra-rapid freezing, the quality and antioxidant function of the spermatozoa were significantly reduced and the spermatozoa ultrastructure was destroyed. The addition of 10 μM Mito-tempo significantly increased post thaw sperm motility, viability, plasma membrane integrity and mitochondrial membrane potential (P < 0.05). Moreover, the DNA fragmentation index (DFI), ROS levels and MDA content were reduced, and the antioxidant enzyme (CAT and SOD) activities were enhanced in the 10 μM Mito-tempo group (P < 0.05). Moreover, Mito-tempo protected sperm ultrastructure from damage. In conclusion, Mito-tempo improved the quality and antioxidant function of sperm after ultra-rapid freezing while reducing freezing-induced ultrastructural damage.
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Affiliation(s)
- Chun-Yuan Li
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
| | - Juan Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Qi-Yuan Zheng
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Nian Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Xi-Ling Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | - Yu-Yin Wu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China
| | | | - Qing-Ying Tan
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
| | - Ying Huang
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China
| | - Chuan-Huo Hu
- College of Animal Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China.
| | - Chang-Long Xu
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China.
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Hosseini E, Afradiasbagharani P, Mohammadian M, Amjadi F, Tabatabaei M, Tanhaye Kalate Sabz F, Zandieh Z. Granulocyte-Macrophage Colony-Stimulating Factor Cytokine Addition After the Freeze-Thawing Process Improves Human Sperm Motility and Vitality in Asthenoteratozoospermia Patients. Biopreserv Biobank 2024; 22:38-45. [PMID: 37801668 DOI: 10.1089/bio.2022.0174] [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: 10/08/2023] Open
Abstract
The cryopreservation-thawing process of spermatozoa cells has negative impacts on their structure, function, and fertility parameters, which are known as cryoinjury. Asthenozoospermia patients are more susceptible to cryoinjury. Granulocyte-macrophage colony-stimulating factor (GM-CSF) increases sperm glucose uptake via the induction of glucose transporters, resulting in increased sperm motility. This study aimed to investigate the efficiency of GM-CSF supplementation of the cryopreservation media for semen samples of asthenoteratozoospermia patients. The study was carried out on 20 semen samples from infertile men referred to diagnosing semen analysis. To avoid subjective bias, two main sperm motility parameters, including velocity along the curvilinear path and velocity along the straight-line path were considered by the computer-assisted sperm analysis system. Afterward, each semen sample was divided into three equal aliquots and randomly assigned to one of the following groups: group I (control, freezing media only), group II (+GM-CSF, freezing medium supplemented with 2 μL/mL GM-CSF), or group III (GM-CSF added after thawing and washing). Following semen thawing, standard parameters, mitochondrial membrane potential (MMP), and the DNA Fragmentation Index were analyzed. Total sperm motility (progressive and non-progressive) improved significantly in group III samples after a 30-minute incubation with GM-CSF compared with the control group (26.5% ± 3.1% vs. 17.51% ± 2.59%). However, no differences in progressive motility or sperm morphology were found among the three thawed samples. The percentage of vitality was significantly higher in group III compared with the other two groups (28.38% ± 3.4% vs. 22.4% ± 3.08% and 22.14% ± 2.77%, respectively) (p < 0.05). JC-1 levels (a marker of MMP) were not significantly different between the examined groups (44.95% ± 8.26% vs. 36.61% ± 6.95% vs. 46.67% ± 7.7%, for control, group II, and group III, respectively) (p > 0.05). GM-CSF may be advantageous as an additive after freezing, improving total motility and viability after 30 minutes of post-thaw incubation; however, when supplied to the freezing media before cryopreservation, it is unable to protect against cryoinjury.
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Affiliation(s)
- Elham Hosseini
- Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Obstetrics and Gynecology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Parivash Afradiasbagharani
- Department of Obstetrics and Gynecology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Masoud Mohammadian
- Mousavi Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Microbiology, Biology Research Center, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - FatemehSadat Amjadi
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Science, Tehran, Iran
- Department of Anatomical Science, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Tabatabaei
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Science, Tehran, Iran
| | - Fateme Tanhaye Kalate Sabz
- Department of Anatomical Sciences and Pathology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Zahra Zandieh
- Shahid Akbarabadi Clinical Research Development Unit (ShACRDU), Iran University of Medical Science, Tehran, Iran
- Department of Anatomical Science, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Güngör İH, Türk G, Dayan Cinkara S, Acisu TC, Tektemur A, Yeni D, Avdatek F, Arkali G, Koca RH, Özer Kaya Ş, Sagiroglu M, Etem Önalan E, Sönmez M, Gür S, Yüce A. Reduction of cryopreservation-induced structural, functional and molecular damages in ram sperm by hydrated C 60 fullerene. Reprod Domest Anim 2024; 59:e14513. [PMID: 38038214 DOI: 10.1111/rda.14513] [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: 09/06/2023] [Revised: 11/02/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023]
Abstract
This study aimed to investigate the morphological, functional and molecular changes in frozen-thawed ram sperm using an extender containing different concentrations of hydrated carbon 60 fullerene (C60 HyFn), a nanotechnological product. Semen taken from each of the seven Akkaraman rams were pooled. Semen collection was done twice a week and it continued for 3 weeks. Each pooled semen sample was divided into six equal groups and diluted with tris + egg yolk extender including 0 (control), 200, 400, 800 nM, 1 and 5 μM concentrations of C60 HyFn at 37°C. They were then frozen in liquid nitrogen vapour at -140°C, stored in liquid nitrogen container (-196°C) and thawed at 37°C for 25 s before analysis. In comparison with control, C60 HyFn addition prior to freezing procedure provided significant increases in total and progressive motility rates, glutathione peroxidase, catalase activities and percentage of highly active mitochondria, and significant decreases in dead and abnormal sperm rates, lipid peroxidation, caspase-3 and DNA fragmentation levels in frozen-thawed ram semen. When compared to control, C60 HyFn supplementation significantly down-regulated the expression levels of miR-200a and KCNJ11, and significantly up-regulated the expression levels of miR-3958-3p (at the concentrations of 200, 400, 800 nM and 1 μM), CatSper1 (at the concentrations of 200, 400 nM and 5 μM), CatSper2 (at the concentrations of 1 and 5 μM), CatSper3 (at the concentrations of 200, 400 nM, 1 and 5 μM), CatSper4 (at all concentrations), ANO1 (at the concentrations of 800 nM, 1 and 5 μM) and TRPV5 (at the concentrations of 200, 400 and 800 nM). The addition of C60 HyFn had no effect on global DNA methylation rates. As a result, C60 HyFn supplementation to ram semen extenders may be beneficial in reducing some of the functional, structural and molecular damages in sperm induced by the freeze-thawing procedure.
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Affiliation(s)
- İbrahim Halil Güngör
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Gaffari Türk
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Serap Dayan Cinkara
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Tutku Can Acisu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Ahmet Tektemur
- Department of Medical Biology, Faculty of Medicine, Fırat University, Elazığ, Türkiye
| | - Deniz Yeni
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Afyon Kocatepe University, Afyonkarahisar, Türkiye
| | - Fatih Avdatek
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Afyon Kocatepe University, Afyonkarahisar, Türkiye
| | - Gözde Arkali
- Department of Physiology, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Recep Hakkı Koca
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Bingöl University, Bingöl, Türkiye
| | - Şeyma Özer Kaya
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Meltem Sagiroglu
- Department of Physiology, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Ebru Etem Önalan
- Department of Medical Biology, Faculty of Medicine, Fırat University, Elazığ, Türkiye
| | - Mustafa Sönmez
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Seyfettin Gür
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
| | - Abdurrauf Yüce
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Fırat University, Elazığ, Türkiye
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Khalil WA, Hassan MAE, Attia KAA, El-Metwaly HA, El-Harairy MA, Sakr AM, Abdelnour SA. Effect of olive, flaxseed, and grape seed nano-emulsion essential oils on semen buffalo freezability. Theriogenology 2023; 212:9-18. [PMID: 37672891 DOI: 10.1016/j.theriogenology.2023.08.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/13/2023] [Accepted: 08/25/2023] [Indexed: 09/08/2023]
Abstract
The existing treatise targeted to compare the effects of adding different nano-emulsions essential oils (olive, flaxseed, and grapeseed oils) in freezing extender on semen quality and freezability in buffalo. Nano-emulsions were prepared from olive, flaxseed, and grapeseed oils and characterized for their sizes and shapes. Semen extended in four tubes were supplemented with 0 (control) and 3.5% nanoemulsion oils, including olive (NEO), flaxseed (NEFO) and grape seed oils (NEGSO) respectively. NEGSO resulted in the highest (p < 0.05) membrane integrity, vitality, progressive motility (P-motility) of sperm compared to the other groups in post-thawed buffalo bull semen (at 37 °C for 30 s). The addition of NEGSO had the best results for membrane integrity, progressive motility, and vitality of sperm after incubation (at 37 °C and 5% CO2 for 2 h). A superior (p < 0.05) value of total antioxidant capacity in frozen-thawed spermatozoa was monitored in all supplemented groups as relative to the control. The values of malondialdehyde (MDA) and nitric oxide (NO) were lower (p < 0.05) in NEGSO group compared with other groups. Both NEO and NEFO exhibited the same results for MDA, and NO levels (p > 0.05). All supplemented groups exhibited lower hydrogen peroxide levels (p < 0.05) as relative to the un-treated group. The lowest (p < 0.05) caspase 3 levels were verified in NEGSO treatment, followed by NEFO and NEO treatments. Post-thawed sperm showed ultrastructural damages in the control group, and theses damages were attenuated or resorted by the NEGSO, NEFO and NEO supplemented to freezing extender. In consequences with in vitro results regarding the sperm attribute, a greater pregnancy rate (92%) was observed in NEGSO group as compared with NEFO (88%), NEO (76%) and CON (68%) groups. Our findings demonstrate that NEGSO (3.5%) could be used as a new strategy in enhancing sperm functionality, potential fertility and reducing the oxidative damage and apoptosis markers. This could be significantly applicable for sperm physiology cryopreservation in the milieu of assisted reproduction systems.
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Affiliation(s)
- Wael A Khalil
- Department of Animal Production, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt.
| | - Mahmoud A E Hassan
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza, 12619, Egypt.
| | - Kandil A A Attia
- Department of Evaluation of Natural Resources, Environmental Studies and Research Institute, El-Sadat City University, Cairo, 32897, Egypt.
| | - Hassan A El-Metwaly
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza, 12619, Egypt.
| | - Mostafa A El-Harairy
- Department of Animal Production, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt.
| | - Abdelaziz M Sakr
- Animal Production Research Institute, Agriculture Research Centre, Ministry of Agriculture, Dokki, Giza, 12619, Egypt.
| | - Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt.
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Carriço C, Barbas JP, Pimenta J, Simões J. Effect of In Vitro Addition of Melatonin and Glutathione on Seminal Parameters of Rams in Diluted Semen and after Thawing. Vet Sci 2023; 10:446. [PMID: 37505850 PMCID: PMC10383498 DOI: 10.3390/vetsci10070446] [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: 05/26/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023] Open
Abstract
The present study aimed to evaluate the effects of melatonin (MLT), glutathione (GSH), and their combination on ram semen quality after thawing. During eight weekly sessions, semen from three Merino rams was pooled, diluted with an egg-yolk-based semen extender, and divided into four groups: control, 1 mM MLT, 5 mM GSH, and 1 mM MLT + 5 mM GSH. Diluted semen was evaluated before and after the freezing process. The supplementation of diluted semen with GSH at 5 mM had a deleterious effect on total motility progressive (TPM), curvilinear velocity (VCL), straight-line velocity (VSL), average-path velocity (VAP), linearity (LIN), and straightness (STR) and increased slow spermatozoa (%). MLT at 1 mM also had a negative effect on TPM, VSL, and STR in diluted semen. In thawed semen, 1 mM MLT increased the TPM compared with the control group. VSL was lower in the 5 mM GSH group than in the 1 mM MLT group. Additionally, the combination of both antioxidants attenuated the negative effect of 5 mM GSH on TPM, VSL, and BCF. These results indicate that 5 mM GSH impairs or does not improve sperm kinetic parameters in either diluted or thawed semen. They also suggest that MLT combined with GSH plays a protective role against these effects.
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Affiliation(s)
- Cristiana Carriço
- Department of Veterinary Sciences, Animal and Veterinary Research Centre (CECAV), Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), School of Agricultural and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - João Pedro Barbas
- Department of Biotechnology and Genetic Resources of Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Quinta da Fonte Boa, 2005-048 Vale de Santarém, Portugal
- CIISA-AL4AnimalS, Faculty of Veterinary Medicine, University of Lisbon, 1649-004 Lisboa, Portugal
| | - Jorge Pimenta
- Department of Biotechnology and Genetic Resources of Instituto Nacional de Investigação Agrária e Veterinária (INIAV), Quinta da Fonte Boa, 2005-048 Vale de Santarém, Portugal
- CIISA-AL4AnimalS, Faculty of Veterinary Medicine, University of Lisbon, 1649-004 Lisboa, Portugal
| | - João Simões
- Department of Veterinary Sciences, Animal and Veterinary Research Centre (CECAV), Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), School of Agricultural and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
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Molina JCJ, de Oliveira MB, Costa PHC, Santos EWPD, Correa CB, Azevedo HC. Association between different soy lecithin-based extenders and freezing rates in ram semen cryopreservation. Anim Reprod Sci 2023; 252:107234. [PMID: 37105047 DOI: 10.1016/j.anireprosci.2023.107234] [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: 08/05/2022] [Revised: 03/30/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023]
Abstract
The aim of the study was to evaluate the effect of the association between glycine-milk (GM) based extenders made with different concentrations of soy lecithin (SL) and freezing rates (FR) on semen quality after thawing. Pooled semen from rams (n = 12) were diluted in GM extenders with 20% egg yolk (EY-20%) or with different concentrations of SL: 0.5% (SL-0.5%), 1.0% (SL-1.0%), and 2.0% (SL-2.0%). The diluted semen (150 ×106 spermatozoa/0.25 mL) was frozen at three FR of - 10, - 20, and - 60 °C/min, and subsequently thawed and analyzed. Results revealed that EY-20% and SL-2.0% had better kinetic parameters, and showed higher proportions of viable, non-apoptotic, plasma-membrane-intact spermatozoa (A-/PI-) and non-capacitated spermatozoa (F), and had lower acrosome-reacted spermatozoa (AR) in the EY-20% and satisfactory values for SL-2.0% compared to SL-0.5% and SL-1.0% (P < 0.05). The FR at - 20 and - 60 °C/min maintained higher A-/PI- and viable spermatozoa compared to - 10 °C/min. The combination EY-20% and - 60 °C/min showed the highest A-/PI- and F (P < 0.05) and the lowest AR, and it did not differ from the combinations EY-20% at - 20 °C/min and SL-2.0% at - 20 °C/min (P > 0.05). In conclusion, the combination EY-20% and - 60 °C/min, showed the best cryoprotective effects on ram spermatozoa. Changes in spermatozoa after thawing were related to the use of the type of extender, the amounts of the same compound in the extender, and the freezing rates to which they were subjected.
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Affiliation(s)
| | | | - Paulo Henrique Conceição Costa
- Brazilian Agricultural Research Corporation, EMBRAPA, Embrapa Tabuleiros Costeiros, Embrapa Coastal Tablelands, Aracaju, Sergipe, Brazil
| | | | - Cristiane Bani Correa
- Postgraduate Program in Health Sciences, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Hymerson Costa Azevedo
- Brazilian Agricultural Research Corporation, EMBRAPA, Embrapa Tabuleiros Costeiros, Embrapa Coastal Tablelands, Aracaju, Sergipe, Brazil.
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9
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Málková A, Savvulidi FG, Ptáček M, Machová K, Janošíková M, Nagy S, Stádník L. Glycerol-Free Equilibration with the Addition of Glycerol Shortly before the Freezing Procedure: A Perspective Strategy for Cryopreservation of Wallachian Ram Sperm. Animals (Basel) 2023; 13:ani13071200. [PMID: 37048456 PMCID: PMC10093609 DOI: 10.3390/ani13071200] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/20/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
This study investigated the effect of glycerol added in different phases of sperm equilibration on CASA and flow cytometry parameters of thawed ram spermatozoa. Sperm was collected from adult Wallachian rams. The freezing extender was glycerol-free ANDROMED® (Minitub GmbH, Tiefenbach, Germany) supplied by 6% exogenous glycerol at different stages of the cryopreservation process. The purpose of this study was to compare two strategies of glycerol addition for sperm cryopreservation. The first strategy included the use of a glycerol-free extender for the procedure of glycerol-free equilibration and chilling, with the glycerolation of the extender by 6% glycerol shortly before sperm slow freezing (GFA). The second strategy included the use of a freezing extender already glycerolated by 6% glycerol before the equilibration and chilling of sperm and following slow freezing (GA). Sperm samples were analyzed after equilibration (but before freezing) and after thawing (at T0, T1 h, and T2 h time points). iSperm® mCASA (Aidmics Biotechnology Co., LTD., Taipei, Taiwan) was used for the evaluation of sperm kinematics. Flow cytometry was used to measure sperm viability (plasma membrane/acrosome intactness) and mitochondrial membrane potential. The obtained results significantly demonstrated that the glycerol-free equilibration with the addition of glycerol shortly before freezing is a perspective strategy for cryopreservation of Wallachian ram sperm.
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Affiliation(s)
- Anežka Málková
- Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic; (A.M.)
| | - Filipp Georgijevič Savvulidi
- Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic; (A.M.)
- Correspondence: ; Tel.: +420-223-383-069
| | - Martin Ptáček
- Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic; (A.M.)
| | - Karolína Machová
- Department of Genetics and Breeding, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
| | - Martina Janošíková
- Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic; (A.M.)
| | - Szabolcs Nagy
- Institute of Animal Sciences, Hungarian University of Agriculture and Life Sciences, Georgikon Campus, H8360 Keszthely, Hungary
| | - Luděk Stádník
- Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic; (A.M.)
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10
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Hu Y, Liu X, Liu F, Xie J, Zhu Q, Tan S. Trehalose in Biomedical Cryopreservation-Properties, Mechanisms, Delivery Methods, Applications, Benefits, and Problems. ACS Biomater Sci Eng 2023; 9:1190-1204. [PMID: 36779397 DOI: 10.1021/acsbiomaterials.2c01225] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Cells and tissues are the foundation of translational medicine. At present, one of the main technological obstacles is their preservation for long-term usage while maintaining adequate viability and function. Optimized storage techniques must be developed to make them safer to use in the clinic. Cryopreservation is the most common long-term preservation method to maintain the vitality and function of cells and tissues. But, the formation of ice crystals in cells and tissues is considered to be the main mechanism that could harm cells and tissues during freezing and thawing. To reduce the formation of ice crystals, cryoprotective agents (CPAs) must be added to the cells and tissues to achieve the cryoprotective effect. However, conventional cryopreservation of cells and tissues often needs to use toxic organic solvents as CPAs. As a result, cryopreserved cells and tissues may need to go through a time-consuming washing process to remove CPAs for further applications in translational medicine, and multiple valuable cells are potentially lost or killed. Currently, trehalose has been researched as a nontoxic CPA due to its cryoprotective ability and stability during cryopreservation. Nevertheless, trehalose is a nonpermeable CPA, and the lack of an effective intracellular trehalose delivery method has become the main obstacle to its use in cryopreservation. This article illustrated the properties, mechanisms, delivery methods, and applications of trehalose, summarized the benefits and limits of trehalose, and summed up the findings and research direction of trehalose in biomedical cryopreservation.
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Affiliation(s)
- Yuying Hu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
| | - Xiangjian Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
| | - Fenglin Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
| | - Jingxian Xie
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
| | - Qubo Zhu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
| | - Songwen Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, China
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11
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Li S, Ren J, Zhang W, Wang B, Ma Y, Su L, Dai Y, Liu G. Glutathione and selenium nanoparticles have a synergistic protective effect during cryopreservation of bull semen. Front Vet Sci 2023; 10:1093274. [PMID: 36876009 PMCID: PMC9978397 DOI: 10.3389/fvets.2023.1093274] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/20/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction In the present study, the synergistic protective effect of co-supplementation of glutathione (GSH) with selenium nanoparticles (SeNPs) on the cryopreservation efficiency of bull semen was analyzed. Methods After collection, the ejaculates of Holstein bulls were subsequently diluted with a Tris extender buffer supplemented with different concentrations of SeNPs (0, 1, 2, and 4 μg/ml), followed by semen equilibration at 4°C and assessment of sperm viability and motility. Subsequently, the ejaculates of Holstein bulls were pooled, split into four equal groups, and diluted with a Tris extender buffer supplemented with basic extender (negative control group, NC group), 2 μg/ml SeNPs (SeNPs group), 4 mM GSH (GSH group), and 4 mM GSH plus 2 μg/ml SeNPs (GSH + SeNPs group). After cryopreservation, motility, viability, mitochondrial activity, plasma membrane integrity, acrosome integrity, concentration of malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT), and ability of frozen-thawed sperm cells to support in vitro embryonic development were evaluated. Results and discussion No side effect of SeNPs concentrations applied in the current study on the motility and viability of equilibrated bull spermatozoa was found. Meanwhile, supplementation of SeNPs significantly promoted the motility and viability of equilibrated bull spermatozoa. Furthermore, the co-supplementation of GSH with SeNPs effectively protected bull spermatozoa from cryoinjury as expressed by promoting semen motility, viability, mitochondrial activity, plasma membrane integrity, and acrosome integrity. Finally, the enhanced antioxidant capacity and embryonic development potential in the frozen-thawed bull spermatozoa cryopreserved by co-supplementation of GSH with SeNPs further confirmed the synergistic protective effect of co-supplementation of GSH with SeNPs on the cryopreservation of bull semen.
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Affiliation(s)
- Shubin Li
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Jingyu Ren
- College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Wenqi Zhang
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Biao Wang
- Animal Husbandry Institute, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot, Inner Mongolia, China
| | - Yuzhen Ma
- Center of Reproductive Medicine, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia, China
| | - Liya Su
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Yanfeng Dai
- College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Gang Liu
- Key Laboratory of Medical Cell Biology, Clinical Medicine Research Center, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
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12
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Motility Assessment of Ram Spermatozoa. BIOLOGY 2022; 11:biology11121715. [PMID: 36552225 PMCID: PMC9774426 DOI: 10.3390/biology11121715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022]
Abstract
For successful fertilisation to occur, spermatozoa need to successfully migrate through the female reproductive tract and penetrate the oocyte. Predictably, poor sperm motility has been associated with low rates of fertilisation in many mammalian species, including the ram. As such, motility is one of the most important parameters used for in vitro evaluation of ram sperm quality and function. This review aims to outline the mechanical and energetic processes which underpin sperm motility, describe changes in motility which occur as a result of differences in sperm structure and the surrounding microenvironment, and assess the effectiveness of the various methods used to assess sperm motility in rams. Methods of subjective motility estimation are convenient, inexpensive methods widely used in the livestock industries, however, the subjective nature of these methods can make them unreliable. Computer-assisted sperm analysis (CASA) technology accurately and objectively measures sperm motility via two-dimensional tracing of sperm head motion, making it a popular method for sperm quality assurance in domesticated animal production laboratories. Newly developed methods of motility assessment including flagellar tracing, three-dimensional sperm tracing, in vivo motility assessment, and molecular assays which quantify motility-associated biomarkers, enable analysis of a new range of sperm motion parameters with the potential to reveal new mechanistic insights and improve ram semen assessment. Experimental application of these technologies is required to fully understand their potential to improve semen quality assessment and prediction of reproductive success in ovine artificial breeding programs.
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Sharafi M, Borghei-Rad SM, Hezavehei M, Shahverdi A, Benson JD. Cryopreservation of Semen in Domestic Animals: A Review of Current Challenges, Applications, and Prospective Strategies. Animals (Basel) 2022; 12:ani12233271. [PMID: 36496792 PMCID: PMC9739224 DOI: 10.3390/ani12233271] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/11/2022] [Accepted: 11/21/2022] [Indexed: 11/26/2022] Open
Abstract
Cryopreservation is a way to preserve germplasm with applications in agriculture, biotechnology, and conservation of endangered animals. Cryopreservation has been available for over a century, yet, using current methods, only around 50% of spermatozoa retain their viability after cryopreservation. This loss is associated with damage to different sperm components including the plasma membrane, nucleus, mitochondria, proteins, mRNAs, and microRNAs. To mitigate this damage, conventional strategies use chemical additives that include classical cryoprotectants such as glycerol, as well as antioxidants, fatty acids, sugars, amino acids, and membrane stabilizers. However, clearly current protocols do not prevent all damage. This may be due to the imperfect function of antioxidants and the probable conversion of media components to more toxic forms during cryopreservation.
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Affiliation(s)
- Mohsen Sharafi
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
- Semex Alliance, Guelph, ON N1H 6J2, Canada
- Correspondence: (M.S.); (J.D.B.)
| | - Seyyed Mohsen Borghei-Rad
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran 16635-148, Iran
| | - Maryam Hezavehei
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran 16635-148, Iran
| | - Abdolhossein Shahverdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran 16635-148, Iran
| | - James D. Benson
- Department of Biology, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada
- Correspondence: (M.S.); (J.D.B.)
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14
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The Effects of Different Doses of ROCK Inhibitor, Antifreeze Protein III, and Boron Added to Semen Extender on Semen Freezeability of Ankara Bucks. Molecules 2022; 27:molecules27228070. [PMID: 36432171 PMCID: PMC9698151 DOI: 10.3390/molecules27228070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/07/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
In the presented study, the effects of ROCK inhibitor Y-27632, antifreeze protein III, and boron at two different doses were investigated on the spermatological parameters of Ankara buck semen after freeze−thawing. Ejaculates were collected from bucks using an electroejaculator during the breeding season. The ejaculates that showed appropriate characteristics were pooled and used in the dilution and freezing of semen. The extender groups were formed by adding two different doses of three different additives (ROCK inhibitor Y-27632, 5 and 20 µM; antifreeze protein III, 1 and 4 µg/mL; boron, 0.25 and 1 mM) to the control extender. The semen was diluted with the different extenders at 35−37 °C and loaded into straws. Sperm samples frozen in liquid nitrogen vapors, following equilibration, were stored in liquid nitrogen. It was observed that extender supplementation improved post-thaw motility of Ankara buck semen after freeze−thawing. Differences were significant (p < 0.01) for 5 and 10 µM doses of ROCK inhibitor (71.82% and 74.04 % motility), as well as for 0.25 and 1 mM doses of boron (76.36% and 72.08% motility), compared to the control group (66.15% motility). With respect to the evaluation of acrosomal integrity and mitochondrial activity after freeze−thawing, although supplementation provided protection at all doses, the efficacy was not statistically significant (p > 0.05). It was observed that DNA damage was improved by antifreeze protein III at 1 µg/mL (1.23% ± 0.23%) and by boron at all doses (0.25 mM: 1.83% and 1 mM: 1.18%) compared to the control group (3.37%) (p < 0.01), following the thawing process. In the present study, it was determined that some additives added to the extender provided significant improvements in buck spermatozoa motility and DNA damage after thawing.
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15
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Su J, Wang C, Song Y, Yang Y, Cao G. Effect of lactoferrin on ram sperm motility after cryopreservation. Anim Biosci 2022; 35:1351-1359. [PMID: 35240020 PMCID: PMC9449401 DOI: 10.5713/ab.21.0561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/16/2022] [Indexed: 11/27/2022] Open
Abstract
Objective The objective of this study was to analyse the differentially abundant proteins caused by freeze-thawing of ram sperm and explore candidate proteins of interest for their ability to improve ram sperm cryopreservation outcomes in vitro . Methods Sperm were from three mature Dorper. Fresh and frozen sperm proteins were extracted, and the differentially abundant proteins were analysed by mass spectrometry (MS). Among these proteins, lactoferrin(LTF) was selected to be added before cryopreservation. Next, sperm samples were diluted in Tris extender, with the addition of 0μg/ml,10 μg/ml, 100 μg/ml, 500 μg/ml, 1000 μg/ml of LTF. After thawing, sperm quality evaluated by motility, plasma membrane integrity, mitochondrial activity and reactive oxygen species (ROS). Results Cryopreservation significantly altered the abundance of 40 proteins; the abundance of 16 proteins was increased, while that of 24 proteins was decreased. Next, LTF was added to Tris extender applied to ram sperm. The results showed that sperm motility and plasma membrane integrity were significantly improved (p<0.05) by supplementation with 10 μg/ml LTF compared to those in the control group. There was no significant difference in mitochondrial activity between the 0μg/ml group and other groups (p>0.05). Supplementation of the cryoprotective extender with 10 μg/ml LTF led to decreased reactive oxygen species (ROS) levels compared with those in the control and other groups (p<0.05). Conclusion LTF is an important protein during cryopreservation, and the addition of 10 μg/ml LTF to a cryoprotective extender can significantly improve the function of frozen ram sperm.
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Affiliation(s)
- Jie Su
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Inner Mongolia Agriculture University, Hohhot 010018, China
| | - Caiyun Wang
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Inner Mongolia Agriculture University, Hohhot 010018, China
| | - Yongli Song
- Research Center for Animal Genetic Resources of Mongolia Plateau,Inner Mongolia University, Huhhot 010021, China
| | - Yanyan Yang
- Inner Mongolia Academy of Agricultured & Animal Husbandry Sciences,Huhhot 010000, China
| | - Guifang Cao
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Inner Mongolia Agriculture University, Hohhot 010018, China
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16
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Ahmadi E, Shams-Esfandabadi N, Nazari H, Davoodian N, Kadivar A. Ram epididymal sperm frozen in an extender containing ethylene glycol have higher post-thaw longevity and in vitro fertility. Andrology 2021; 10:604-613. [PMID: 34905299 DOI: 10.1111/andr.13137] [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: 09/08/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Establishing an efficient, simple and inexpensive method for freezing ram epididymal sperm so that the quality and fertility of spermatozoa could be maintained for a longer period after thawing is of great practical value. OBJECTIVES To optimize freezing and thawing protocol for ram epididymal sperm using either ethylene glycol (EG) or glycerol (GLY) as cryoprotectants (CPAs). Then, to evaluate the post-thaw longevity and in vitro fertility of spermatozoa that were frozen and thawed according to the optimized protocol. MATERIALS AND METHODS At first, an optimum protocol for freezing and thawing sperm using EG or GLY were investigated, and the next experiments were performed using the spermatozoa that had been frozen and thawed according to the optimized protocol for each CPA. In the next experiments, frozen-thawed and fresh sperm were diluted in an isotonic culture medium and subsequently incubated at 39°C for 4 h. The motility characteristics and functional membrane integrity (FMI) of spermatozoa were evaluated after thawing, after dilution (t0 ), and after incubation (t4 ). The in vitro fertility of the spermatozoa was assessed at t0 and t4 . RESULTS For both CPAs, the highest motility parameters and FMI was found for spermatozoa frozen at 3 cm above LN2 and thawed at 50 and 65°C (P < 0.05). In comparison to the spermatozoa of GLY group, the spermatozoa of the EG group had higher total and progressive motility at t0 , as well as higher FMI, total and progressive motility, and linearity at t4 (P < 0.05). Fertility of frozen-thawed sperm was higher than that of fresh sperm at t0 (P < 0.05). Incubation treatment increased the fertility of fresh sperm while decreased the fertility of frozen-thawed sperm, and this decline was more severe in GLY than in the EG group. CONCLUSION Based on the findings, EG can be a more suitable CPA for freezing ram epididymal sperm.
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Affiliation(s)
- Ebrahim Ahmadi
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Naser Shams-Esfandabadi
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.,Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - Hassan Nazari
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Najmeh Davoodian
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
| | - Ali Kadivar
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.,Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
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17
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Bucak MN, Keskin N, Bodu M, Bülbül B, Kırbaş M, Öztürk AE, Frootan F, İli P, Özkan H, Başpınar N, Dursun Ş. Combination of trehalose and low boron in presence of decreased glycerol improves post-thawed ram sperm parameters: A model study in boron research. Andrology 2021; 10:585-594. [PMID: 34779585 DOI: 10.1111/andr.13130] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/20/2021] [Accepted: 11/10/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Sperm cryopreservation has been widely used in the field of reproductive biotechnology. It applies to certain males of economic and scientific values, including livestock breeds or endangered animal species. The development of a semen extender with a low cryoprotectant concentration and an appropriate amount of trehalose and boron can prevent the deterioration of sperm parameters. OBJECTIVE The main goal of this study is to establish a suitable ram extender model, by examining different combinations of high (5%) and low (3%) glycerol concentrations (to reduce its toxic effects on sperm freezing), a fixed amount of trehalose and an increased dose of boron to prevent the deterioration of sperm parameters, and investigate the levels of gene expressions. MATERIALS AND METHODS The Merino ram ejaculates were collected. The collected ejaculates providing the defined criteria were pooled. The pooled ejaculates were divided into eight aliquots and diluted with the Tris extender including different combinations of glycerol (5% and 3%) and boron (0.25, 0.5, and 1 mm) concentrations and a fixed amount of trehalose, then frozen. After freeze-thawing process, sperm motility, mitochondrial membrane activity, plasma membrane integrity, acrosomal membrane integrity, DNA damage (single cell gel electrophoresis (COMET) and TUNEL assays) as well as NAD(P)H quinone oxyreductase (NQO1), glutamate-cycteine ligase (GCLC), and glutathione S-transferase (GSTP1) for molecular mechanisms of sperm cell response to oxidative stress were assessed for different extender groups following freeze-thawing process: 5% glycerol + 0 mm boron (G5B0.00), 5% glycerol + 0.25 mm boron (G5B0.25), 5% glycerol + 0.5 mm boron (G5B0.50), 5% glycerol + 1 mm boron (G5B1.00), 3% glycerol + 0 mm boron (G3B.00), 3% glycerol + 0.25 mm boron (G3B0.25), 3% glycerol + 0.5 mm boron (G3B0.50), and 3% glycerol + 1 mm boron (G3B1.00). RESULTS G3B0.25 presented higher percentages of subjective motility, mitochondrial activity, and viability of spermatozoa comparing with G5B0.00 and groups with boron. Supplementation of 0.25 mm boron with and without trehalose (G3B0.25 and G5B0.25) showed higher acrosome integrity, compared with G5B0.00, G5B1.00, G3B0.50, and G3B1.00. For TUNEL analysis, G3B1.00 showed the highest DNA integrity among the experimental groups which was statistically significant only with G5B0.50 (p < 0.05). The mRNA levels of NQO1 were significantly decreased in G5B1.00, G3B0.50, and G3B1.00, when compared to G5B0.00. In comparison with G5B0.00, supplementation of 1 mm boron with and without trehalose had significantly lower expression of GCLC. The level of GSTP1 gene was significantly lower (approximately threefold) in G3B1.00, compared to G5B0.00 (p < 0.05). DISCUSSION AND CONCLUSION It can be assumed that the increase of the boron concentration in the extender may have important adverse effects on sperm parameters and antioxidant gene expression after thawing. The results obtained from this study will help to understand the toxicity limits of boron and eliminate the toxicity of glycerol in studies of gametes and tissue freezing. Therefore, it can be concluded that the use of sufficient boron can decrease cryodamages of cryopreservation of mammalian spermatozoa as well tissue engineering.
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Affiliation(s)
- Mustafa Numan Bucak
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Selçuk University, Konya, Turkey
| | - Nazan Keskin
- Department of Histology and Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Mustafa Bodu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Selçuk University, Konya, Turkey
| | - Bülent Bülbül
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Dokuz Eylül University, İzmir, Turkey
| | - Mesut Kırbaş
- Bahri Dagdas International Agricultural Research Institute, Konya, Turkey
| | - Ali Erdem Öztürk
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Sciences, Erciyes University, Kayseri, Turkey
| | - Fateme Frootan
- National Institute of Genetic Engineering & Biotechnology (NIGEB), Tehran, Iran
| | - Pınar İli
- Denizli Vocational School of Health Services, Pamukkale University, Denizli, Turkey
| | - Hüseyin Özkan
- Department of Genetics, Faculty of Veterinary Sciences, Mustafa Kemal University, Hatay, Turkey
| | - Nuri Başpınar
- Department of Biochemistry, Faculty of Veterinary Sciences, Selcuk University, Konya, Turkey
| | - Şükrü Dursun
- Department of Gynecology and Obstetrics, Faculty of Veterinary Sciences, Aksaray University, Aksaray, Turkey
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18
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Shokry DM, Abd Eldaim MA, Badr MR, Khalifa HK, Orabi SH, Hassan AM, Dohreig R. Enhancement impact of Moringa oleifera leaves extract–base extender on cryopreservation and fertilization of Barki ram sperms: comparative study with vitamin E and selenium combination. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1953411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Dina M. Shokry
- Department of Artificial Insemination and Embryo Transfer, Animal Reproduction Research Institute, Agriculture Research Center, Giza, Egypt
| | - Mabrouk Attia Abd Eldaim
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Menoufia University, Sheben Elkom, Egypt
| | - Magdy R. Badr
- Department of Artificial Insemination and Embryo Transfer, Animal Reproduction Research Institute, Agriculture Research Center, Giza, Egypt
| | - Hanem K. Khalifa
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Sahar H. Orabi
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Egypt
| | - Aziza M. Hassan
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
| | - Ragab Dohreig
- Department of Artificial Insemination and Embryo Transfer, Animal Reproduction Research Institute, Agriculture Research Center, Giza, Egypt
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19
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The effect of L-glutamine and trehalose on dog sperm cryopreservation. ACTA VET BRNO 2021. [DOI: 10.2754/avb202190020201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study aimed to test different doses of L-glutamine and trehalose in the canine semen diluent while determining their protective effects on spermatological and biochemical indices of the thawed samples. Semen samples were collected from three fertile dogs using the digital manipulation method. The mixed ejaculates were divided into five portions at 37 °C and diluted with additives. Five study groups were formed with L-glutamine (10 and 20 mM), trehalose (25 and 50 mM), and no additives (control). After the dilution, the semen samples were cooled for 1.5 h at 5 °C and frozen (-110 to -120 °C) in liquid nitrogen vapor. Then, they were stored at -196 °C. For spermatological evaluations, samples were thawed at 38 °C for 30 s. L-glutamine (20 mM) was found to be significantly different (P < 0.05) and led to higher percentages of motility, membrane integrity, and acrosome integrity compared to the control group. Considering the total oxidant status (TOS) assay, the lower values were determined in all the antioxidant groups compared to the control group (P < 0.05). Supplementing the semen extender with L-glutamine showed a higher total antioxidant status (TAS) concentration compared to the control group (P < 0.05). As a result of this study, a higher protective effect was found in all the spermatological evaluations after thawing the frozen semen samples, especially in the group containing L-glutamine (20 mM).
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