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Calabria A, Del Prete C, Roberto C, Longobardi V, Spada S, Alfano MT, De Felice D, Gasparrini B, Cocchia N. Effect of crocin supplementation in the extender on the quality of chilled canine semen. Anim Reprod Sci 2023; 259:107374. [PMID: 37984312 DOI: 10.1016/j.anireprosci.2023.107374] [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: 08/08/2023] [Accepted: 11/04/2023] [Indexed: 11/22/2023]
Abstract
The aim of the study was to evaluate the effects of crocin on canine sperm quality parameters during prolonged storage at 4 °C. Ejaculates from 10 dogs were diluted in a TRIS- egg yolk extender supplemented with 0 (control group), 0.5, 1, and 2 mM crocin and stored at 4 °C. Sperm membrane functional integrity, motility, and kinetics were assessed after 3 h, 24 h, 4 days and 7 days of storage. Based on the results, the more efficient concentration of crocin (0.5 mM) was chosen to evaluate sperm intracellular ROS levels, lipid peroxidation, and DNA fragmentation vs. the control. Semen with the addition of 0.5 mM crocin with respect to the control exhibited: i) increased (P < 0.05) sperm membrane functionality at 4 and 7 days of storage; ii) higher (P < 0.05) average path (VAP), straight-line velocities (VSL), and beat cross frequency (BCF) at 4 d of storage at 4 °C; iii) decreased (P < 0.05) intracellular ROS levels after 3 and 24 h storage. No differences in lipid peroxidation and DNA fragmentation were recorded between the control and C0.5 groups at any time point. Lipid peroxidation did not increase over time, while DNA fragmentation increased (P < 0.05) in both groups after 4 days of storage. The results demonstrated that the enrichment of extender with crocin improves to a certain extent canine semen quality, particularly after 4 days of storage at 4 °C.
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Affiliation(s)
- Alfonso Calabria
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Chiara Del Prete
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Ciarcia Roberto
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Valentina Longobardi
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy.
| | - Stefano Spada
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Maria Teresa Alfano
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Daniela De Felice
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Bianca Gasparrini
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Natascia Cocchia
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
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Saratsi A, Samartzi F, Panagiotidis I, Basioura A, Tsiokos D, Ligda C, Rekkas CA. Post-Thaw Parameters of Buck Semen Quality after Soy Lecithin Extender Supplementation with Fumaric Acid. Vet Sci 2023; 10:569. [PMID: 37756091 PMCID: PMC10534350 DOI: 10.3390/vetsci10090569] [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: 07/17/2023] [Revised: 08/23/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023] Open
Abstract
The supplementation of cryopreservation media with antioxidants improves the post-thaw quality and fertilizing ability of spermatozoa. To maximize the fertility of frozen-thawed buck spermatozoa, further research is required to overcome obstacles that have yielded controversial results and standardize protocols. In the present work, the effect of adding fumaric acid (a well-described antioxidant) to a soy lecithin semen extender on certain quality parameters of spermatozoa following freezing and thawing was examined for the first time. Five sexually mature Skopelos bucks were used, and ejaculates were collected with an artificial vagina. The semen samples (98 samples, five replicates) were diluted (400 × 106 spermatozoa/mL) with OviXcell®, supplemented with fumaric acid (0 mM, 2.15 mM, 10 mM or 30 mM), equilibrated (5 °C; 3 h), packed (0.5 mL straws), frozen and stored (-196 °C) until further processing. After thawing, the spermatozoa total and progressive motility (CASA), viability (eosin-nigrosin), membrane functional integrity (HOST), acrosome integrity (SpermBlue®) and mitochondrial function (Rhodamine-123/SYBR-14/PI) were evaluated. Statistical analysis was performed with one-way ANOVA, followed by Duncan's test; significance was set at 0.05. The addition of 2.15 mM fumaric acid improved (p < 0.05) spermatozoa viability, membrane functional integrity, acrosome integrity and mitochondrial function compared to all other concentrations. The addition of 30 mM fumaric acid decreased (p < 0.05) spermatozoa viability and mitochondrial function compared to all other concentrations. These results indicate a beneficial effect of a 2.15 mM fumaric acid addition to a soy lecithin extender on post-thaw buck spermatozoa quality. Further research is required to evaluate the in vivo fertility of frozen-thawed buck spermatozoa treated with fumaric acid, as well as to elucidate the mechanism of action of fumaric acid in spermatozoa.
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Affiliation(s)
- Aikaterini Saratsi
- Veterinary Research Institute, Hellenic Agricultural Organization—DIMITRA, ELGO Campus, 57001 Thermi-Thessaloniki, Greece; (A.S.); (F.S.); (C.L.)
| | - Foteini Samartzi
- Veterinary Research Institute, Hellenic Agricultural Organization—DIMITRA, ELGO Campus, 57001 Thermi-Thessaloniki, Greece; (A.S.); (F.S.); (C.L.)
| | - Ioannis Panagiotidis
- Department of Animal Reproduction & Artificial Insemination, Directorate of Veterinary Center of Thessaloniki, Ministry of Rural Development and Food, 9 Verias Str., 57008 Thessaloniki, Greece;
| | - Athina Basioura
- Department of Agriculture, University of Western Macedonia, Terma Kontopoulou, 53100 Florina, Greece;
| | - Dimitrios Tsiokos
- Research Institute of Animal Science, Hellenic Agricultural Organization—DIMITRA, 58100 Paralimni Giannitsa, Greece;
| | - Christina Ligda
- Veterinary Research Institute, Hellenic Agricultural Organization—DIMITRA, ELGO Campus, 57001 Thermi-Thessaloniki, Greece; (A.S.); (F.S.); (C.L.)
| | - Constantinos A. Rekkas
- Veterinary Research Institute, Hellenic Agricultural Organization—DIMITRA, ELGO Campus, 57001 Thermi-Thessaloniki, Greece; (A.S.); (F.S.); (C.L.)
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3
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Gardela J, Ruiz-Conca M, Palomares A, Olvera-Maneu S, García-Calvo L, López-Béjar M, Martínez-Pastor F, Álvarez-Rodríguez M. Effect of Honey, Coenzyme Q10, and β-Carotene/α-Tocopherol as Novel Additives in Rabbit-Sperm Cryopreservation Extender. Animals (Basel) 2023; 13:2392. [PMID: 37508170 PMCID: PMC10376550 DOI: 10.3390/ani13142392] [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: 05/19/2023] [Revised: 06/22/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
The effectiveness of rabbit-sperm cryopreservation is still below average compared to other domestic species. After the sperm cryopreservation process, post-thawing parameters like motility and membrane integrity are significantly compromised. The use of new extender constituents is an approach that can be used to improve the effectiveness of cryopreservation. Accordingly, we used honey (1.25, 2.5, 5, and 10%), coenzyme Q10 (100 and 200 μM), and β-carotene/α-tocopherol (500 μM/620 μM and 250 μM/310 μM) as candidate components for rabbit-sperm extenders during cryopreservation. Ejaculates from commercial adult rabbit bucks (n = 5) were cryopreserved using conventional freezing. Several post-thawing sperm parameters were assessed, including total motility, membrane integrity, viability, nuclear membrane integrity, acrosome reaction, and mitochondrial membrane potential and activation. Additionally, we performed hormonal analyses of the seminal plasma. Moreover, we analyzed the post-thawing levels of a molecular marker of sperm quality, proAKAP4, which was used in rabbits for the first time. Our findings showed that the 2.5% honey supplementation increased the post-thawing sperm motility (13.75 ± 3.75%) compared to the greater concentrations employed. However, the post-thawing motility was negatively affected by the coenzyme Q10 (0%, in both groups) but was not affected by the β-carotene/α-tocopherol supplementation (22 ± 18.15%, and 11.67 ± 10.17%). In conclusion, the cryopreservation protocols of this study did not help to maintain the sperm parameters after thawing. Further studies are required to identify novel protocols to mitigate the damage caused to rabbit sperm during cryopreservation.
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Affiliation(s)
- Jaume Gardela
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Mateo Ruiz-Conca
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Anna Palomares
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Sergi Olvera-Maneu
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Laura García-Calvo
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Manel López-Béjar
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL) and Department of Molecular Biology (Cell Biology), Universidad de León, 24009 León, Spain
| | - Manuel Álvarez-Rodríguez
- Department of Animal Health and Anatomy, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology, Spanish National Research Council (INIA-CSIC), 28040 Madrid, Spain
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Caamaño JN, Santiago-Moreno J, Martínez-Pastor F, Tamargo C, Salman A, Fernández Á, Merino MJ, Lacalle E, Toledano-Díaz A, Hidalgo CO. Use of the flavonoid taxifolin for sperm cryopreservation from the threatened Bermeya goat breed. Theriogenology 2023; 206:18-27. [PMID: 37172535 DOI: 10.1016/j.theriogenology.2023.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/24/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023]
Abstract
Taxifolin is a plant flavonoid effective as an antioxidant. This study aimed to assess the effect of adding taxifolin to the semen extender during the cooling period before freezing on the overall post-thawing sperm variables of Bermeya goats. In the first experiment, a dose-response experiment was performed with four experimental groups: Control, 10, 50, and 100 μg/ml of taxifolin using semen from 8 Bermeya males. In the second experiment, semen from 7 Bermeya bucks was collected and extended at 20 °C using a Tris-citric acid-glucose medium supplemented with different concentrations of taxifolin and glutathione (GSH): control, 5 μM taxifolin, 1 mM GSH, and both antioxidants. In both experiments, two straws per buck were thawed in a water bath (37 °C, 30 s), pooled, and incubated at 38 °C. Motility (CASA) was assessed at 0, 2, and 5 h, and sperm physiology was assessed at 0 and 5 h by flow cytometry (viability, intact acrosome membrane, mitochondria membrane potential, capacitation, intracellular reactive oxygen species -ROS-, mitochondrial superoxide, and chromatin status). In experiment 2, an artificial insemination trial (AI) was included with 29 goats for testing the taxifolin 5-μM treatment on fertility. Data were analyzed with the R statistical environment using linear mixed-effects models. In experiment 1 and compared to the control, T10 increased progressive motility (P < 0.001) but taxifolin decreased total and progressive motility at higher concentrations (P < 0.001), both post-thawing and after the incubation. Viability decreased post-thawing in the three concentrations (P < 0.001). Cytoplasmic ROS decreased at 0 and 5 h at T10 (P = 0.049), and all doses decreased mitochondrial superoxide post-thawing (P = 0.024). In experiment 2, 5 μM taxifolin or 1 mM GSH (alone or combined) increased total and progressive motility vs. the control (P < 0.01), and taxifolin increased kinematic parameters such as VCL, ALH, and DNC (P < 0.05). Viability was not affected by taxifolin in this experiment. Both antioxidants did not significantly affect other sperm physiology parameters. The incubation significantly affected all the parameters (P < 0.004), overall decreasing sperm quality. Fertility after artificial insemination with doses supplemented with 5 μM taxifolin was 76.9% (10/13), not significantly different from the control group (69.2%, 9/13). In conclusion, taxifolin showed a lack of toxicity in the low micromolar range and could benefit goat semen cryopreservation.
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Affiliation(s)
- J N Caamaño
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), Gijón, Asturias, Spain.
| | | | - F Martínez-Pastor
- INDEGSAL, Universidad de León, León, Spain; Molecular Biology (Cell Biology), Universidad de León, León, Spain
| | - C Tamargo
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), Gijón, Asturias, Spain
| | - A Salman
- INDEGSAL, Universidad de León, León, Spain
| | - Á Fernández
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), Gijón, Asturias, Spain
| | - M J Merino
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), Gijón, Asturias, Spain
| | - E Lacalle
- INDEGSAL, Universidad de León, León, Spain
| | | | - C O Hidalgo
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), Gijón, Asturias, Spain
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Liang J, Larbi A, Lv C, Ali S, Wu G, Quan G. Fertility results after exocervical insemination using goat semen cryopreserved with extenders based on egg yolk, skim milk, or soybean lecithin. Reprod Domest Anim 2023; 58:431-442. [PMID: 36510740 DOI: 10.1111/rda.14304] [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: 10/07/2022] [Revised: 11/10/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022]
Abstract
To evaluate the effects of four extenders on the post-thaw quality and fertility of goat semen, six Yunshang Black bucks' semen was collected, pooled, diluted with Andromed® (Andr®), Optidyl® (Opt®), P3644 Sigma l-phosphatidylcholine (l-α SL), and skim milk-based (Milk) extenders, and then cryopreserved. The sperm motilities, abnormalities, membrane and acrosome integrity, mitochondrial activity, apoptosis, and reactive oxygen species (ROS) production were evaluated after thawing. After exocervical insemination with the thawed semen, the pregnancy, lambing, and twinning rates were recorded and compared. The results showed that sperm motilities, membrane integrity, acrosome integrity, mitochondrial activity, and viable spermatozoa were significantly higher in the Andr® and Opt® groups than those in the l-α SL and Milk groups (p < .05). Furthermore, there was no difference between Andr® and Opt® (p > .05). The sperm abnormality was lower in semen frozen with the Andr® or Opt® extenders, as compared to the l-α SL or Milk extender (p < .05). Regarding, the viable cells with low ROS production, the optimal results were obtained in the semen frozen with Andr® and Opt® extenders. Following exocervical insemination, the pregnancy and lambing rates in the Milk group were significantly lower than those in the other groups (p < .05). No difference was found in the pregnancy and lambing rates between Andr®, Opt®, and l-α SL (p > .05). Furthermore, the twinning rates were similar between these four groups (p > .05). In conclusion, egg yolk or skim milk can be substituted by soybean lecithin during cryopreservation of goat semen.
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Affiliation(s)
- Jiachong Liang
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China
| | - Allai Larbi
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Laboratory of Sustainable Agriculture Management, Higher School of Technology-Sidi Bennour, Chouaıb Doukkali University, El Jadida, Morocco
| | - Chunrong Lv
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China
| | - Sikandar Ali
- Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Karachi, Pakistan
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming City, China
| | - Guobo Quan
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming City, China
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6
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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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Carro M, Luquez JM, Peñalva DA, Buschiazzo J, Hozbor FA, Furland NE. PUFA-rich phospholipid classes and subclasses of ram spermatozoa are unevenly affected by cryopreservation with a soybean lecithin-based extender. Theriogenology 2022; 186:122-134. [PMID: 35468546 DOI: 10.1016/j.theriogenology.2022.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/15/2022] [Accepted: 03/29/2022] [Indexed: 01/10/2023]
Abstract
Cryopreservation is known to affect spermatozoa structure and function. Ram sperm are among the most highly sensitive mammalian gametes to freezing, due to their lipid composition, which limit their efficiency in artificial insemination programs. The aim of this study was to investigate the effects of cryopreservation with a chemically defined soybean lecithin-based extender on ram spermatozoa functionality on the one hand, and quantifiable changes in lipid and fatty acid profile on the other. Freeze-thawing decreased sperm quality, as indicated by post-thaw parameters related to membrane integrity, mitochondrial viability and sperm motility. The most relevant lipid change after cryopreservation was a remarkable loss of all glycerophospholipids containing 22:6n-3. Species of sphingomyelin with very long chain polyunsaturated fatty acids (VLC-PUFA), that are exclusively located in the sperm head, where responsible of its reduction after cryostorage. Freezing caused a reduction in mitochondrial function, which was confirmed by significantly decreased of mitochondrial membrane potential and by the generation of 4-HNE. Mitochondria damage was accompanied by a loss in cardiolipin with 18:2n-6 and phosphatidylethanolamine with 20:4n-6, two well-known lipids that are critical components for mitochondrial membrane functionality. Loss of sterols after cryopreservation occurred along with a decrease in the order of sperm membrane lipids. Our research provides new insights on deleterious effects of cryopreservation on PUFA-rich phospholipids of ram sperm and highlight their importance as biomarkers of ultrastructural, biochemical and functional damage that ram spermatozoa undergo after freezing-thawing.
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Affiliation(s)
- M Carro
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce, Argentina
| | - J M Luquez
- Instituto de Investigaciones Bioquímicas de Bahía Blanca, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Universidad Nacional del Sur (UNS), 8000, Bahía Blanca, Argentina
| | - D A Peñalva
- Instituto de Investigaciones Bioquímicas de Bahía Blanca, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Universidad Nacional del Sur (UNS), 8000, Bahía Blanca, Argentina
| | - J Buschiazzo
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce, Argentina
| | - F A Hozbor
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce, Argentina
| | - N E Furland
- Instituto de Investigaciones Bioquímicas de Bahía Blanca, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Universidad Nacional del Sur (UNS), 8000, Bahía Blanca, Argentina.
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8
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Palacin-Martinez C, Alvarez M, Montes-Garrido R, Neila-Montero M, Anel-Lopez L, de Paz P, Anel L, Riesco MF. Frequency of Semen Collection Affects Ram Sperm Cryoresistance. Animals (Basel) 2022; 12:ani12121492. [PMID: 35739829 PMCID: PMC9219472 DOI: 10.3390/ani12121492] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 12/13/2022] Open
Abstract
The improvement of frozen-thawed sperm quality has been mostly approached from the view of cryopreservation protocol optimization in terms of cryoprotectant solutions, freezing-thawing rates and antioxidant supplementation, while the impact of sperm collection frequency remains unknown in rams. In this work, a multiparametric study was carried out in cooled and frozen-thawed semen to evaluate sperm quality after different semen collection frequencies during a month: zero sperm collection (0 CW), four sperm collections per week (4 CW), and ten sperm collections per week (10 CW). Traditional analyses have been applied, in combination with novel technologies related to redox balance. Frozen-thawed semen quality showed a significant decrease (p < 0.05) in 0 CW and 10 CW in comparison to 4 CW, concerning motility and kinetics parameters. However, apoptosis showed a significant increase (p < 0.05) in 10 CW in comparison to 0 CW and 4 CW. The employment methods related to redox balance provided us with the definitive probe to ensure the influence of collection frequency on balance redox after thawing. Specifically, glutathione peroxidase (GPX) and superoxide dismutase (SOD) activity showed a significant decrease (p < 0.05) in 10 CW compared to 0 CW and 4 CW. The characterization of alternative strategies to sperm cryopreservation based on consideration of male sexual regimes, could improve the quality of frozen-thawed sperm.
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Affiliation(s)
- Cristina Palacin-Martinez
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, 24071 León, Spain
| | - Mercedes Alvarez
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, 24071 León, Spain
| | - Rafael Montes-Garrido
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, 24071 León, Spain
| | - Marta Neila-Montero
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, 24071 León, Spain
| | - Luis Anel-Lopez
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Anatomy, Department of Veterinary Medicine, Surgery and Anatomy, University of León, 24071 León, Spain
| | - Paulino de Paz
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Cellular Biology, Department of Molecular Biology, University of León, 24071 León, Spain
| | - Luis Anel
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Animal Reproduction and Obstetrics, Department of Veterinary Medicine, Surgery and Anatomy, University of León, 24071 León, Spain
| | - Marta F Riesco
- Assisted Reproduction Techniques Research Group (Itra-ULE), INDEGSAL, University of León, 24071 León, Spain
- Cellular Biology, Department of Molecular Biology, University of León, 24071 León, Spain
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9
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Bayesian Analysis of the Effects of Olive Oil-Derived Antioxidants on Cryopreserved Buck Sperm Parameters. Animals (Basel) 2021; 11:ani11072032. [PMID: 34359159 PMCID: PMC8300210 DOI: 10.3390/ani11072032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 11/17/2022] Open
Abstract
The present study evaluates the effect of olive oil-derived antioxidants, hydroxytyrosol (HT) and 3,4-dihydroxyphenylglycol (DHPG), on cryopreserved caprine sperm using Bayesian inference of ANOVA. For this proposal, sperm was collected, pooled and diluted in freezing media supplemented with different concentrations of HT, DHPG and the mixture (MIX) of both antioxidants. Sperm motility, viability, acrosome integrity, mitochondrial status, and lipid peroxidation (LPO) were assessed in fresh and frozen-thawed sperm samples. The results provided evidence that HT at low concentrations improves sperm motility and viability, and reduces the LPO. Contrastingly, DHPG and MIX exert a positive effect by reducing LPO values as concentration increases. Additionally, mitochondrial potential was reduced when samples were supplemented with HT at low concentrations and mixture of both antioxidants. Conclusively, the addition of olive oil-derived antioxidants (HT at 10 µg/mL and DHPG at 30 µg/mL) implements a protective effect in cryopreserved buck sperm. Bayesian analysis alternatives offer new possibilities to determine the repercussion of antioxidants on sperm, both quantitatively and qualitatively.
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10
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Sun L, He M, Wu C, Zhang S, Dai J, Zhang D. Beneficial Influence of Soybean Lecithin Nanoparticles on Rooster Frozen-Thawed Semen Quality and Fertility. Animals (Basel) 2021; 11:ani11061769. [PMID: 34199159 PMCID: PMC8231592 DOI: 10.3390/ani11061769] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Soy lecithin (SL) can be used in to prevent spermatozoa cryodamage during cryopreservation by mitigating the efflux of cholesterol or phospholipids, thus reducing the formation of intracellular ice crystals. SL nanoparticles (nano-SL) have a smaller particle size and higher solubilizing capacity as compared with those that have not undergone nanotreatment. Thus, they allow for a better interaction or coating of sperm, decreasing cold shock injury during freezing–thawing processes. The objective of this study was to determine the optimal concentration of nano-SL. In order to achieve this, we assessed the quality of frozen–thawed semen in vitro and in vivo. We found that a nano-SL dosage of 1.0% in the semen extender had an affirmative influence on post-thawing quality in roosters, improving various parameters related to sperm motion, protecting the membrane and acrosome integrities, increasing mitochondrial activity and antioxidant capacity, and reducing the oxidative stress caused by the cryopreservation process. Moreover, enrichment of 1.0% nano-SL in the semen extender improved the fertilizing capacity of rooster sperm after artificial insemination. Abstract The present study aimed to investigate the impact of different concentrations (0%, 0.5%, 1.0%, 1.5%, and 2.0%) of nano-soybean lecithin (SL) in the extender on sperm quality, sperm motion characteristics, and fertility outcomes of post-thawed rooster semen. Adult Ross broiler breeder roosters (n = 20) were subjected to semen collections twice a week for three weeks. At each collection, semen samples were pooled and allocated into five treatments corresponding to different nano-SL concentrations (control, SL0.5, SL1.0, SL1.5, and SL2.0). Sperm parameters, including motility (collected using a computer-assisted sperm analysis system), plasma membrane and acrosome integrities, and mitochondrial activity were assessed. Sperm malondialdehyde (MDA) and antioxidant activities (total antioxidant capacity (TAC); superoxide dismutase (SOD); glutathione peroxidase (GPx)) were evaluated. The fertility and hatchability obtained with frozen–thawed rooster semen supplemented with the optimum nano-SL concentration were assessed after artificial insemination. The results showed that the addition of 1% nano-SL into the extender led to a higher semen motility in roosters, improved plasma membrane and acrosome integrities, and higher mitochondrial activity of post-thawed rooster semen in comparison to controls (p < 0.05). The MDA levels in the SL0.5 and SL1.0 groups were lower than the other groups (p < 0.05). TAC activities in SL0.5, SL1.0, and SL1.5 groups were significantly higher than those in the other groups (p < 0.05). It was observed that the concentration of SOD was higher in the SL1.0 group than in the other groups (p < 0.05). The activity of GPx was not influenced in any of the cases (p > 0.05). Moreover, the percentages of fertility and hatchability in the SL1.0 group were higher (56.36% and 58.06%) than those in the control group (42.72% and 40.43%). In summary, the addition of nano-SL to the extenders enhanced the post-thawed semen quality and fertility of roosters by reducing the level of oxidative stress. The optimum nano-SL concentration was 1.0%. These results may be beneficial for improving the efficacy of semen cryopreservation procedures in poultry breeding.
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Affiliation(s)
- Lingwei Sun
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (L.S.); (M.H.); (C.W.); (S.Z.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
| | - Mengqian He
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (L.S.); (M.H.); (C.W.); (S.Z.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
| | - Caifeng Wu
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (L.S.); (M.H.); (C.W.); (S.Z.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
| | - Shushan Zhang
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (L.S.); (M.H.); (C.W.); (S.Z.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
| | - Jianjun Dai
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (L.S.); (M.H.); (C.W.); (S.Z.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
- Correspondence: (J.D.); (D.Z.)
| | - Defu Zhang
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (L.S.); (M.H.); (C.W.); (S.Z.)
- Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai 201106, China
- Correspondence: (J.D.); (D.Z.)
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11
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Salman A, Caamaño JN, Fernández-Alegre E, Hidalgo CO, Nadri T, Tamargo C, Fueyo C, Fernández Á, Merino MJ, Martínez-Pastor F. Supplementation of the BIOXcell extender with the antioxidants crocin, curcumin and GSH for freezing bull semen. Res Vet Sci 2021; 136:444-452. [PMID: 33812287 DOI: 10.1016/j.rvsc.2021.03.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/28/2021] [Accepted: 03/25/2021] [Indexed: 11/18/2022]
Abstract
Semen cryopreservation is routine in cattle, but the results of artificial insemination need improvement. A strategy to these aims is the supplementation of the freezing extender with novel antioxidants. This study aimed at testing the natural antioxidants curcumin and crocin as supplements to the commercial extender BIOXcell for freezing semen from 8 Holstein bulls. We tested curcumin at 0.05 and 0.1 mM (CU0.05, CU0.1) and crocin at 0.5 and 1.5 mM (CR0.5, CR1.5), with 0.5 mM reduced glutathione (GSH0.5) as reference, and a control (CTL, without supplementation). The samples were evaluated post-thawing and after 5 h at 38 °C by CASA for motility and flow cytometry for viability, apoptotic, capacitation, acrosomal status, cytoplasmic and mitochondrial reactive oxygen species (ROS) production, and chromatin status (SCSA). Control and GSH0.5 showed similar results, possibly because of the good protection from BIOXcell. CU0.05 and CU0.1 showed little effects but increased cytoplasmic ROS production and motility ALH. CR0.5 and CR1.5 decreased viability and increased apoptotic features significantly post-thawing and after the incubation, resulting in lower motility (significant after the incubation) but decreasing SCSA %HDS (loose chromatin). Whereas crocin at these concentrations seems incompatible with BIOXcell, maybe because of a prooxidant activity, curcumin use merits further research, considering the elevation of ROS with no significant negative effects.
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Affiliation(s)
- Amer Salman
- INDEGSAL, Universidad de León, 24071 León, Spain
| | | | | | | | - Touba Nadri
- Department of Animal Science, College of Agriculture and Natural Resource, University of Tehran, Karaj, Iran
| | | | | | | | | | - Felipe Martínez-Pastor
- INDEGSAL, Universidad de León, 24071 León, Spain; Molecular Biology (Cell Biology), Universidad de León, 24071 León, Spain.
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12
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Multiparametric Study of Antioxidant Effect on Ram Sperm Cryopreservation-From Field Trials to Research Bench. Animals (Basel) 2021; 11:ani11020283. [PMID: 33498656 PMCID: PMC7911426 DOI: 10.3390/ani11020283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The use of antioxidant compounds could be a successful tool to improve sperm cryopreservation protocols in ovine species. These molecules have been widely employed in different mammalian species with this purpose. It is important to consider the existence of a species-specific antioxidant effect discarding the extrapolations from other animal species. To corroborate the real effectiveness of these compounds is important to combine two approaches: in vitro sperm quality analyses and in vivo field trials based on fertility. In the first scenario, a multiparametric analyses and novel tests based on spermatozoa redox balance, as the main target of antioxidants, could improve the accuracy on antioxidant effectiveness on sperm quality. Moreover, an extensive field insemination study provides the definitive tool to select the best antioxidant treatment. All these aspects have been applied and extensively discussed throughout this manuscript. Novel approaches have been incorporated, such as RedoxSYS, to provide more accuracy in the integrative studies of Redox status in spermatozoa. The effectiveness of an antioxidant treatment, as trolox in our study, should be demonstrated in an integrative way, from in vivo (fertility trials) to in vitro analyses (sperm quality assays), especially when the final aim is to reach AI implementation. Abstract The optimization of sperm cryopreservation protocols in ram is a feasible tool to reinforce artificial insemination technologies considering the desirable application of sperm by vaginal/cervical or transcervical deposition. Cryopreservation provokes different types of damage on spermatozoa and many of these detrimental effects are triggered by redox deregulation. For this reason, the antioxidant supplementation in sperm cryopreservation protocols to decrease reactive oxygen species (ROS) levels and to equilibrate redox status has been widely employed in different species. Despite this, more fertility trials are necessary to provide the definitive tool to ensure the antioxidant effectiveness on sperm quality. For this reason, in this work, we performed a multiparametric analysis of some previously tested antioxidants (crocin, GSH and Trolox) on ram sperm cryopreservation from field trials to sperm quality analyses focused on new strategies to measure redox balance. Attending to fertility trial, Trolox supplementation registered an improvement concerning to fertility (when we considered high fertility males) and multiple lambing frequency and other complementary and descriptive data related to lambing performance such as prolificacy and fecundity. This positive effect was more evident in multiple lambing frequency when we considered low fertility males than in global male analysis. In vitro analyses of sperm quality confirmed in vivo trials registering a positive effect on sperm viability and redox balance. In this study, we provided the definitive evidence that the role of trolox on redox balance maintenance has a direct effect on fertility parameters, such as prolificacy. The effectiveness of antioxidant treatments was tested, for the first time in ovine species, using an integrative and multiparametric approach combining in vivo and in vitro analyses and novel approaches, such as RedoxSYS. These types of strategies should be applied to improve sperm conservation methods and optimize AI technologies upgrading the correlation between in vitro and in vivo analyses.
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13
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Longobardi V, della Valle G, Iannaccone F, Calabria A, Di Vuolo G, Damiano S, Ciarcia R, Gasparrini B. Effects of the antioxidant crocin on frozen-thawed buffalo ( Bubalus bubalis) sperm. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1997653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Valentina Longobardi
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
| | - Giovanni della Valle
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
| | - Francesco Iannaccone
- Dipartimento di Scienze Agro Ambientali e Territoriali, University of Bari Aldo Moro, Bari, Italy
| | - Alfonso Calabria
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
| | - Gabriele Di Vuolo
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
| | - Sara Damiano
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
| | - Roberto Ciarcia
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
| | - Bianca Gasparrini
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Federico II University, Napoli, Italy
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14
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Mehdipour M, Daghigh Kia H, Najafi A, Mohammadi H, Álvarez-Rodriguez M. Effect of crocin and naringenin supplementation in cryopreservation medium on post-thaw rooster sperm quality and expression of apoptosis associated genes. PLoS One 2020; 15:e0241105. [PMID: 33119667 PMCID: PMC7595379 DOI: 10.1371/journal.pone.0241105] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 10/09/2020] [Indexed: 12/26/2022] Open
Abstract
The aim of our study was to examine the effects of crocin (0.5 (C0.5), 1 (C1) and 1.5 (C1.5) mM) and naringenin (50 (N50), 100 (N100) and 150 (N150) μM) in cryopreservation extender for freezing rooster semen. Sperm motility, viability, abnormalities, membrane functionality, active mitochondria, apoptosis status, lipid peroxidation (LP), GPX, SOD, TAC, the mRNA expression of pro-apoptotic (CASPASE 3) and anti-apoptotic (Bcl-2) genes, fertile eggs, hatched eggs and hatching rate were investigated following freeze-thawing. C1 and N100 resulted in higher (P < 0.05) total motility and progressive motility in comparison to the control group. The C1 and N100 groups improved viability, membrane functionality and reduced lipid peroxidation. We found higher values for active mitochondria with C1 and N100 compared to control group. The C1 and N100 groups showed lower percentages of early apoptosis when compared with control group. Also, C1 and N100 had higher TAC, compared to the control group. The mRNA expressions of BCL-2 in the C1 and N100 groups were significantly higher than that of other treatments. The expression of CASPASES 3 was significantly reduced in C1 and N100 group (P < 0.05) when compared to control group. Significantly higher percentages of fertile eggs, hatched eggs and hatching rate were observed in C1 and N100 compared to the control group. In conclusion, crocin at 1 mM and naringenin at 100 μM seem to improve the post-thawing rooster semen quality, fertility and could protect the sperm by reducing the pro-apoptotic (CASPASE 3) and increasing anti-apoptotic (Bcl-2) genes.
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Affiliation(s)
- Mahdieh Mehdipour
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Hossein Daghigh Kia
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
- * E-mail: ,
| | - Abouzar Najafi
- Department of Animal and Poultry Science, College of Aburaihan, University of Tehran, Tehran, Iran
| | - Hossein Mohammadi
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Manuel Álvarez-Rodriguez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
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15
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Rodríguez-Tobón E, Fierro R, González-Márquez H, García-Vázquez FA, Arenas-Ríos E. Boar sperm incubation with reduced glutathione (GSH) differentially modulates protein tyrosine phosphorylation patterns and reorganization of calcium in sperm, in vitro fertilization, and embryo development depending on concentrations. Res Vet Sci 2020; 135:386-396. [PMID: 33153763 DOI: 10.1016/j.rvsc.2020.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 10/15/2020] [Accepted: 10/20/2020] [Indexed: 12/21/2022]
Abstract
The sperm in the female's reproductive tract undergo changes to fertilize the oocyte (sperm capacitation). These changes are regulated by redox system. However, some assisted reproductive technologies require sperm capacitation under in vitro conditions, though this increases the generation of ROS. Therefore, the aim of this study was to evaluate the effect of GSH as an antioxidant agent during the capacitation of boar sperm [evaluated by calcium compartmentalization, tyrosine phosphorylation (Tyr-P), motility, viability, and acrosomal integrity], in vitro fertilization (evaluated by penetration, monospermy, and efficiency %), and later embryo development (evaluated by cleavage and blastocyst rates, total number of cells per blastocyst and blastocyst diameter). Four experimental groups with different GSH concentrations (0-control, 0.5, 1, and 5 mM) were formed. When 1-GSH was added to the medium, the percentage of capacitated sperm increased after 4 h of incubation; the localization of Tyr-P was modified at 1 h and 4 h of incubation depending on the GSH concentration. Percentages of total and progressive sperm motility also increased at 4 h of incubation, but only in the 5-GSH group compared to control. Viability, acrosomal integrity, and general Tyr-P (Western blot) not differ among the experimental groups. The addition of GSH during gamete interaction increased penetration, monospermy, and efficiency rates in the 1-GSH group compared to the others. However, the effect of GSH was not observed in cleavage and blastocyst rates compared to the control. In conclusion, adding GSH modulates sperm capacitation (by means of calcium compartmentalization and tyrosine phosphorilation pattern) depending on its concentration, and improves IVF output at 1-GSH during gamete interaction.
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Affiliation(s)
- Ernesto Rodríguez-Tobón
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, CDMX, Mexico
| | - Reyna Fierro
- Universidad Autónoma Metropolitana, Departamento de Ciencias de la Salud, Unidad Iztapalapa, CDMX, Mexico.
| | - Humberto González-Márquez
- Universidad Autónoma Metropolitana, Departamento de Ciencias de la Salud, Unidad Iztapalapa, CDMX, Mexico.
| | - Francisco A García-Vázquez
- Departamento de Fisiología, Facultad de Veterinaria, Campus Internacional de Excelencia para la educación superior e investigación "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), Murcia, Spain.
| | - Edith Arenas-Ríos
- Universidad Autónoma Metropolitana, Departamento de Biología de la Reproducción, Unidad Iztapalapa, CDMX, Mexico.
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Kowalczyk A, Kuczaj M, Czerniawska-Piątkowska E. The role of environmental optimization for storing bulls' sperm cells. Syst Biol Reprod Med 2020; 66:300-310. [PMID: 32808820 DOI: 10.1080/19396368.2020.1795432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Artificial insemination has achieved a dynamic increase in genetic progress, and this is due to the improvement of sperm preservation technology. In recent years, a lot of attention has been paid to optimizing bull sperm storage environment and objectifying methods of sperm quality analysis. This review presents bull sperm preservation methods and ways to modify their storage environment. The main purpose of sperm preparation for artificial insemination is to obtain sperm with a high percentage of viable, motile sperm with normal morphology and low DNA fragmentation rates. Currently conducted experiments indicate the possibility of improving the quality of insemination doses produced using various components enriching common diluents. However, despite extensive research, no better results have been achieved than obtaining insemination doses with sperm viability that exceeds just over 60%. Obtaining a very good quality of frozen semen seems to be still unachievable today.
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Affiliation(s)
- Alicja Kowalczyk
- Department of Environment, Animal Hygiene, and Welfare, Wrocław University of Environmental and Life Sciences , Wrocław, Poland
| | - Marian Kuczaj
- Institute of Animal Breeding, Wrocław University of Environmental and Life Sciences , Wrocław, Poland
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17
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Longobardi V, Zullo G, Cotticelli A, Salzano A, Albero G, Navas L, Rufrano D, Claps S, Neglia G. Crocin Improves the Quality of Cryopreserved Goat Semen in Different Breeds. Animals (Basel) 2020; 10:E1101. [PMID: 32604736 PMCID: PMC7341288 DOI: 10.3390/ani10061101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 01/27/2023] Open
Abstract
The effect of crocin in the semen extender before cryopreservation was evaluated on sperm parameters of 20 bucks of five different breeds: Garganica (GA), Jonica (JO), Maltese (MA), Mediterranean Red (MR) and Saanen (SA). Semen samples were centrifuged, to remove seminal plasma, divided in two aliquots and diluted with Tris-egg-yolk-based extender, containing 0 (control group) and 1 mM crocin. Crocin concentration was established after a preliminary dose trial. On fresh and frozen-thawed sperm, motility, viability, morphology, membrane integrity, DNA fragmentation and ROS levels were evaluated. The freezing process led to a decrease (p < 0.05) in all the sperm parameters recorded, confirming the deleterious effect of cryopreservation on goat semen. The most interesting result regarding the inclusion of crocin in the extender before cryopreservation was as follows: Crocin significantly improved (p < 0.05) sperm motility in all breeds, except for Mediterranean Red, compared to the control group. Furthermore, 1 mM crocin reduced percentage of spermatozoa with DNA fragmentation with a marked decrement (p < 0.05) in Garganica and Saanen, as compared to the control group. Finally, intracellular ROS decreased (p < 0.01) in the crocin-treated sperm of all breeds, as compared to the control. In conclusion, supplementation of 1 mM crocin in the extender decreased oxidative stress, improving sperm motility and the DNA integrity of frozen-thawed sperm in different breeds.
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Affiliation(s)
- Valentina Longobardi
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
- Department of Precision Medicine, University of Campania Luigi Vanvitelli, 80138 Naples, Italy
| | - Gianluigi Zullo
- Italian Buffalo Breeders Association, V. Petrarca 42/44, 81100 Caserta, Italy
| | - Alessio Cotticelli
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Angela Salzano
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Giuseppe Albero
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Luigi Navas
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
| | - Domenico Rufrano
- Council for Agricultural Research and Agricultural Economy Analysis-Research Centre for Animal Production and Aquaculture, S.S.7 Via Appia, 85051 Bella Muro, Italy
| | - Salvatore Claps
- Council for Agricultural Research and Agricultural Economy Analysis-Research Centre for Animal Production and Aquaculture, S.S.7 Via Appia, 85051 Bella Muro, Italy
| | - Gianluca Neglia
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy
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18
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Evaluation of used Purslane extracts in Tris extenders on cryopreserved goat sperm. Cryobiology 2020; 94:40-48. [DOI: 10.1016/j.cryobiol.2020.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 04/12/2020] [Accepted: 05/04/2020] [Indexed: 02/02/2023]
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Peris-Frau P, Soler AJ, Iniesta-Cuerda M, Martín-Maestro A, Sánchez-Ajofrín I, Medina-Chávez DA, Fernández-Santos MR, García-Álvarez O, Maroto-Morales A, Montoro V, Garde JJ. Sperm Cryodamage in Ruminants: Understanding the Molecular Changes Induced by the Cryopreservation Process to Optimize Sperm Quality. Int J Mol Sci 2020; 21:ijms21082781. [PMID: 32316334 PMCID: PMC7215299 DOI: 10.3390/ijms21082781] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/07/2020] [Accepted: 04/14/2020] [Indexed: 12/28/2022] Open
Abstract
Sperm cryopreservation represents a powerful tool for livestock breeding. Several efforts have been made to improve the efficiency of sperm cryopreservation in different ruminant species. However, a significant amount of sperm still suffers considerable cryodamage, which may affect sperm quality and fertility. Recently, the use of different “omics” technologies in sperm cryobiology, especially proteomics studies, has led to a better understanding of the molecular modifications induced by sperm cryopreservation, facilitating the identification of different freezability biomarkers and certain proteins that can be added before cryopreservation to enhance sperm cryosurvival. This review provides an updated overview of the molecular mechanisms involved in sperm cryodamage, which are in part responsible for the structural, functional and fertility changes observed in frozen–thawed ruminant sperm. Moreover, the molecular basis of those factors that can affect the sperm freezing resilience of different ruminant species is also discussed as well as the molecular aspects of those novel strategies that have been developed to reduce sperm cryodamage, including new cryoprotectants, antioxidants, proteins, nanoparticles and vitrification.
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Zalazar L, Iniesta-Cuerda M, Sánchez-Ajofrín I, Garde JJ, Soler Valls AJ, Cesari A. Recombinant SPINK3 improves ram sperm quality and in vitro fertility after cryopreservation. Theriogenology 2020; 144:45-55. [DOI: 10.1016/j.theriogenology.2019.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 12/26/2019] [Accepted: 12/26/2019] [Indexed: 12/22/2022]
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Arando A, Delgado JV, Bermúdez-Oria A, León JM, Fernández-Prior Á, Nogales S, Pérez-Marín CC. Effect of olive-derived antioxidants (3,4-dihydroxyphenylethanol and 3,4 dihydroxyphenylglycol) on sperm motility and fertility in liquid ram sperm stored at 15°C or 5°C. Reprod Domest Anim 2020; 55:325-332. [PMID: 31926029 DOI: 10.1111/rda.13631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 12/29/2019] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to evaluate the effect of the addition of two olive oil-derived antioxidants, hydroxytyrosol (3,4-dihydroxyphenylethanol, HT) and 3,4-dihydroxyphenylglycol (DHPG), on ovine semen during liquid storage at 5°C and 15°C. Semen was collected, pooled, diluted and then divided into aliquots supplemented with different concentrations (5 μg/ml, 10 μg/ml, 50 μg/ml and 100 μg/ml) of HT, DHPG and a mixture (MIX) of both antioxidants. Sperm motility characteristics were assessed in the different samples at 0, 6, 24, 48, 72 and 96 hr after cooling, and a fertility trial was also conducted. The results showed that the antioxidant addition did not significantly improve total and progressive motility in ovine cooled sperm maintained at 15° or 5°C. However, in samples stored at 5°C, LIN (48, 72, 96 hr), STR (0 hr) and WOB (0, 48, 72, 96 hr) values significantly decreased in comparison with control treatment when high antioxidant concentrations were added (MIX100 or HT100). When samples were maintained at 15°C, MIX50 showed significantly higher VCL values than the control treatment after 6 hr cooling, and MIX100 showed significantly lower VCL values at 96 hr after cooling. According to the artificial insemination trial, no significant differences were observed when antioxidants were added. In conclusion, the use of HT and DHPG showed small impact in sperm motility and fertility was not affected (nor detrimentally nor positively) when insemination was carried out using antioxidant-supplemented liquid sperm.
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Affiliation(s)
- Ander Arando
- Department of Genetics, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, Spain
| | - Juan Vicente Delgado
- Department of Genetics, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, Spain
| | - Alejandra Bermúdez-Oria
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Sevilla, Spain
| | - José Manuel León
- Centro Agropecuario Provincial de la Diputación de Cordoba, Cordoba, Spain
| | - África Fernández-Prior
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Sevilla, Spain
| | - Sergio Nogales
- Department of Genetics, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, Spain
| | - Carlos C Pérez-Marín
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, Spain
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22
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Silva RAJA, Batista AM, Arruda LCP, de Souza HM, Nery IHDAV, Gomes WA, Soares PDC, Silva SV, Guerra MMP. Concentration of soybean lecithin affects short-term storage success of goat semen related with seminal plasma removal. Anim Reprod 2019; 16:895-901. [PMID: 32368269 PMCID: PMC7189563 DOI: 10.21451/1984-3143-ar2019-0012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The objective of this study was to investigate the need of seminal plasma removal for short-term cooling of buck semen in soybean lecithin (SL) based extender. Each pool was divided equally, and one half was subjected to centrifugation to remove seminal plasma (SP-), while the other half remained with seminal plasma (SP+). Then, both SP+ and SP- samples were diluted in two SL extenders (extender A = 1% SL; extender B = 2% SL), cooled to 5ºC and stored for 48 hours. The sperm kinetics, evaluated by CASA, and plasma membrane integrity (PMI), acrosomal integrity (ACI) and high mitochondrial membrane potential (HMMP), evaluated by epifluorescence microscopy, were determined within five minutes after reaching 5°C (T0), as well as after 24 (T24) and 48 (T48) hours of storage. Interactions (seminal plasma
vs.
extender
vs.
time;) were observed for all variables assessed. Total and progressive motility and other variables of sperm kinetics decreased after 24 hours of cooling in the SP+ group, and after 48 hours of storage, these same variables were lower in SP+/B compared to SP-/B groups. Furthermore, SP+ reduced PMI (extender B, T48), HMMP (A and B extenders, T48) and ACI (extender A, T0) compared to SP- samples. The interactions between seminal plasma and soybean lecithin phospholipids seemed to occur in a time-dependent manner. It was concluded that the removal of seminal plasma improves the quality of goat semen that was cooled in a soybean lecithin-based extender, especially when using 2% soybean lecithin.
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Affiliation(s)
- Robespierre Augusto Joaquim Araújo Silva
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - André Mariano Batista
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - Lúcia Cristina Pereira Arruda
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - Helder Melo de Souza
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - Igor Henrique de Azevedo Valença Nery
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - Wilton Arruda Gomes
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - Pierre de Castro Soares
- Universidade Federal Rural de Pernambuco Laboratório de Doenças Metabólicas e Nutricionais de Ruminantes Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Doenças Metabólicas e Nutricionais de Ruminantes, Departamento de Medicina Veterinária, Recife, PE, Brasil
| | - Sildivane Valcácia Silva
- Universidade Federal da Paraíba Centro de Biotecnologia João PessoaPB Brasil Universidade Federal da Paraíba, Centro de Biotecnologia, João Pessoa, PB, Brasil
| | - Maria Madalena Pessoa Guerra
- Universidade Federal Rural de Pernambuco Laboratório de Andrologia Departamento de Medicina Veterinária RecifePE Brasil Universidade Federal Rural de Pernambuco, Laboratório de Andrologia, Departamento de Medicina Veterinária, Recife, PE, Brasil
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23
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Mousavi SM, Towhidi A, Zhandi M, Amoabediny G, Mohammadi-Sangcheshmeh A, Sharafi M, Hussaini SMH. Comparison of two different antioxidants in a nano lecithin-based extender for bull sperm cryopreservation. Anim Reprod Sci 2019; 209:106171. [DOI: 10.1016/j.anireprosci.2019.106171] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 07/09/2019] [Accepted: 08/19/2019] [Indexed: 10/26/2022]
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24
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Najafi A, Daghigh Kia H, Mehdipour M, Shamsollahi M, Miller DJ. Does fennel extract ameliorate oxidative stress frozen-thawed ram sperm? Cryobiology 2019; 87:47-51. [PMID: 30831077 DOI: 10.1016/j.cryobiol.2019.02.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/26/2019] [Accepted: 02/26/2019] [Indexed: 11/17/2022]
Abstract
The aim of this study was to evaluate the quality of ram semen after cryopreservation with different levels of fennel (Foeniculum vulgare) extract (0 (F0), 5 (F5), 10 (F10) and 15 (F15) mg/L) and sperm concentrations (200 (C200) and 400 (C400) × 106 sperm/mL) in a soy lecithin (SL)-based extender. Twenty ejaculates were collected from four ghezel rams and diluted with eight sperm concentrations/fennel combinations: F0C200, F5C200, F10C200, F15C200, F0C400, F5C400, F10C400 and F15C400. Sperm motility, abnormality, plasma membrane, viability, mitochondrial activity, lipid peroxidation (LPO), mitochondrial activity and apoptotic changes were evaluated after freeze-thawing process. It was observed that F10C400 significantly improved total and progressive motility, VSL, membrane integrity of post-thawed ram sperm. MDA level was lower in F5C200 and F10C400 compared to other treatments. The higher percentage of live sperm and the lower percentage of apoptotic sperm were obtained in F10C200 compared to F0C200, F5C200 F15C400, F0C400, F5C400 and F15C400. Extender F10C200 resulted in the highest mitochondria activity compared to the rest of the extenders except F10C400. We conclude that a combination of 10 mg/mL fennel (Foeniculum vulgare) extract and sperm concentration of 200 × 106 sperm/mL can improve the ram semen quality cryopreserved in a soybean lecithin based extender.
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Affiliation(s)
- Abouzar Najafi
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Hossein Daghigh Kia
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Mahdieh Mehdipour
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Mohammad Shamsollahi
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - David J Miller
- Department of Animal Science, University of Illinois, Urbana, IL, USA
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25
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Najafi A, Taheri RA, Mehdipour M, Martínez-Pastor F, Rouhollahi AA, Nourani MR. Improvement of post-thawed sperm quality in broiler breeder roosters by ellagic acid-loaded liposomes. Poult Sci 2019; 98:440-446. [PMID: 30085198 PMCID: PMC6347126 DOI: 10.3382/ps/pey353] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/15/2018] [Indexed: 12/11/2022] Open
Abstract
Liposomes could improve the delivery of substances to sperm. This study was conducted to investigate the effect of the antioxidant ellagic acid and ellagic acid-loaded liposomes on post-thawed sperm quality in broiler breeder roosters. Semen was diluted in Beltsville extender containing ellagic acid or ellagic acid-loaded liposomes (ellagic acid at 0 (control), 0.5, 1, and 2 mM) and cryopreserved. Sperm quality was evaluated post-thawing: motility characteristics (Computer-Assisted Semen Analysis), membrane functionality (HOS test), abnormal morphology, mitochondrial activity (Rhodamine 123), apoptotic status (Annexin V/Propidium iodide), malondialdehyde, and antioxidant activities (glutathione peroxidase (GPx), superoxide dismutase (SOD), and total antioxidant capacity (TAC)). The results showed that 1 mM ellagic acid-loaded liposomes improved total motility, membrane functionality, and viability comparing to 0.5 and 2 mM ellagic acid, 2 mM ellagic acid-loaded liposomes, and control group. Mitochondrial activity was significantly higher for 1 mM ellagic acid-loaded liposomes compared to the rest of the treatments, except 1 mM ellagic acid. Ellagic acid at 1 mM in both forms significantly increased GPx and TAC after freeze-thawing (no significant variation for SOD), and also yielded the lower proportion of apoptotic and dead cells. In conclusion, ellagic acid improved post-thawed sperm quality in broiler breeder roosters. The use of liposomes could further enhance the effects of ellagic acid.
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Affiliation(s)
- Abouzar Najafi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, 1435116471 Iran.,Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, 5166616471 Iran
| | - Ramezan Ali Taheri
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, 1435116471 Iran
| | - Mahdieh Mehdipour
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, 5166616471 Iran
| | - Felipe Martínez-Pastor
- INDEGSAL and Department of Molecular Biology (Cell Biology), Universidad de León, León, 24071 Spain
| | - Abbas Abbas Rouhollahi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, 1417466191 Iran
| | - Mohammad Reza Nourani
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, 1435116471 Iran
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26
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Arando A, Delgado JV, Fernández-Prior A, León JM, Bermúdez-Oria A, Nogales S, Pérez-Marín CC. Effect of different olive oil-derived antioxidants (hydroxytyrosol and 3,4-dihydroxyphenylglycol) on the quality of frozen-thawed ram sperm. Cryobiology 2019; 86:33-39. [PMID: 30611732 DOI: 10.1016/j.cryobiol.2019.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/29/2018] [Accepted: 01/02/2019] [Indexed: 12/31/2022]
Abstract
The aim of the present study was to evaluate the effect of the addition of different concentrations of two olive oil-derived antioxidants, hydroxytyrosol (3,4-dihydroxyphenylethanol, HT) and 3,4-dihydroxyphenylglycol (DHPG), on ovine semen during the freezing-thawing process. Sperm was collected, pooled and diluted with commercial extenders and then divided into aliquots supplemented with different concentrations (10 μg/ml, 30 μg/ml, 50 μg/ml and 70 μg/ml) of HT, DHPG and a mixture (MIX) of both antioxidants. A control group, without antioxidant, was also prepared. Sperm motility, viability, acrosome integrity, mitochondrial membrane potential and lipid peroxidation (LPO) were assessed. The results showed that frozen-thawed ram spermatozoa exhibited lower values for motility, membrane integrity, acrosome and mitochondrial membrane potential than fresh samples (P ≤ 0.01). However, when antioxidants were added, thawed spermatozoa exhibited relatively low LPO, recording values similar to fresh spermatozoa; by contrast, the control group of frozen-thawed spermatozoa without antioxidants exhibited significantly higher LPO (P ≤ 0.01). The addition of a HT+DHPG mixture (MIX) had a negative impact on sperm membrane and acrosome integrity, suggesting that a pure antioxidant supplementation has the potential to offer superior results. In conclusion, HT and DHPG exhibited a positive effect on the frozen-thawed spermatozoa inasmuch as they reduced the LPO. These olive oil-derived antioxidants have the potential to improve frozen-thawed sperm quality, although further studies should be carried out to analyse the antioxidant effect at different times after thawing.
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Affiliation(s)
- A Arando
- Department of Genetics, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, 14014, Spain
| | - J V Delgado
- Department of Genetics, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, 14014, Spain
| | - A Fernández-Prior
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Sevilla, 41013, Spain
| | - J M León
- Centro Agropecuario Provincial de la Diputación de Cordoba, Cordoba, 14014, Spain
| | - A Bermúdez-Oria
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Sevilla, 41013, Spain
| | - S Nogales
- Department of Genetics, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, 14014, Spain
| | - C C Pérez-Marín
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Cordoba, Cordoba, 14014, Spain.
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27
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Mehdipour M, Daghigh Kia H, Moghaddam G, Hamishehkar H. Effect of egg yolk plasma and soybean lecithin on rooster frozen-thawed sperm quality and fertility. Theriogenology 2018; 116:89-94. [PMID: 29787941 DOI: 10.1016/j.theriogenology.2018.05.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 05/10/2018] [Accepted: 05/12/2018] [Indexed: 11/19/2022]
Abstract
This experiment was conducted to study the effects of egg yolk plasma (10%, 15% and 20%), soybean lecithin (0.5%, 1% and 1.5%) and whole egg yolk (WEY) (control) on post-thawed sperm quality, hatchability and fertility outcomes. In experiment 1, sperm motility, abnormalities, membrane integrity, viability, apoptosis status, mitochondrial activity were studied following freeze-thawing. The best quality of frozen-thawed rooster sperm was chosen to be used for the assessment of the hatchability and fertility rate in experiment 2. The significantly higher percentages of post-thawing sperm total and progressive sperm motilities, membrane integrity, viability were observed in 1% soybean lecithin and 20% egg yolk plasma in comparison with 0.5 and 1% soybean lecithin, 10% egg yolk plasma and control, except for 15% egg yolk plasma (P < 0.05). Using 20% egg yolk plasma in the extender improved mitochondrial activity. Supplementation of 1% soybean lecithin and 20% egg yolk plasma into the extender resulted in the least percentages of dead sperm (P < 0.05). Sperm abnormalities and early apoptosis did not differ in various extender supplementations. In experiment 2, higher percentages of hatchability and fertility rate were observed in semen containing 1% soybean lecithin and 20% egg yolk plasma compared with the WEY group. The results showed that supplementation of the rooster sperm extender with 1% soybean lecithin and 20% egg yolk plasma resulted in higher quality of frozen-thawed sperm.
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Affiliation(s)
- Mahdieh Mehdipour
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Hossein Daghigh Kia
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Gholamali Moghaddam
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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28
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Allai L, Benmoula A, Marciane da Silva M, Nasser B, El Amiri B. Supplementation of ram semen extender to improve seminal quality and fertility rate. Anim Reprod Sci 2018; 192:6-17. [DOI: 10.1016/j.anireprosci.2018.03.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 03/02/2018] [Accepted: 03/18/2018] [Indexed: 01/15/2023]
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29
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Fang Y, Zhong R, Zhang X, Zhang J, Zhou D. Boar seminal plasma inhibits cryo-capacitation of frozen-thawed ram sperm and improves fertility following intracervical insemination. Theriogenology 2018; 105:84-89. [DOI: 10.1016/j.theriogenology.2017.09.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 09/07/2017] [Accepted: 09/08/2017] [Indexed: 12/17/2022]
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30
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Souza HM, Arruda LC, Monteiro MM, Nery IH, Araújo Silva RA, Batista AM, Guerra MMP. The Effect of Canthaxanthin on the Quality of Frozen Ram Spermatozoa. Biopreserv Biobank 2017; 15:220-227. [DOI: 10.1089/bio.2016.0049] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Helder M. Souza
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
| | - Lúcia C.P. Arruda
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
| | - Millena M. Monteiro
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
| | - Igor H.A.V. Nery
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
| | - Robespierre A.J. Araújo Silva
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
| | - André M. Batista
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
| | - Maria Madalena Pessoa Guerra
- Andrology Laboratory (ANDROLAB), Veterinary Medicine Department, Universidade Federal Rural de Pernambuco (UFRPE), Recife, Brazil
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31
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Vichas L, Tsakmakidis IA, Vafiadis D, Tsousis G, Malama E, Boscos CM. The effect of antioxidant agents’ addition and freezing method on quality parameters of frozen thawed ram semen. Cell Tissue Bank 2017; 19:113-121. [DOI: 10.1007/s10561-017-9633-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/17/2017] [Indexed: 11/30/2022]
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32
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Najafi A, Daghigh-Kia H, Dodaran HV, Mehdipour M, Alvarez-Rodriguez M. Ethylene glycol, but not DMSO, could replace glycerol inclusion in soybean lecithin-based extenders in ram sperm cryopreservation. Anim Reprod Sci 2017; 177:35-41. [DOI: 10.1016/j.anireprosci.2016.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 11/20/2016] [Accepted: 12/02/2016] [Indexed: 11/29/2022]
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33
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Mehdipour M, Daghigh Kia H, Najafi A, Vaseghi Dodaran H, García-Álvarez O. Effect of green tea (Camellia sinensis) extract and pre-freezing equilibration time on the post-thawing quality of ram semen cryopreserved in a soybean lecithin-based extender. Cryobiology 2016; 73:297-303. [PMID: 28314435 DOI: 10.1016/j.cryobiol.2016.10.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/27/2016] [Accepted: 10/27/2016] [Indexed: 11/22/2022]
Abstract
The aim of this study was to determine the effect of Camellia sinensis extract as antioxidant supplement and pre-freezing equilibration times in a soybean lecithin extender for freezing ram semen. In this study, a total of 20 ejaculates were collected from four Ghezel rams and diluted with extenders (1.5% soybean lecithin, 7% glycerol) containing no supplements (control) and Camellia sinensis extract (5, 10, and 15 mg/L) and cryopreserved, immediately after thermal equilibrium was reached at 5 °C (0 h), or 4 h after equilibration. Sperm motility characteristics, membrane integrity, abnormal morphology, mitochondria activity, apoptotic status, MDA and antioxidant activities (GPx, SOD and total antioxidant capacity (TAC)) were evaluated following freeze-thawing. Camellia sinensis extract at level 10 mg/L led to the highest total and progressive motilities percentages, in comparison to other treatments (P < 0.05). Our results showed that Camellia sinensis extract at level of 5 and 10 mg/L led to higher plasma membrane integrity, mitochondria activity and Total antioxidant capacity (TAC) in comparison to the level of 15 mg/L and control group (P < 0.05). Camellia sinensis extract at 10 mg/L level produced the highest percentage of live spermatozoa and the lowest apoptotic spermatozoa in comparison to all treatments (P < 0.05). In addition, level of MDA formation significantly decreased at this concentration, 10 mg/L, compared to all treatments (P < 0.05). No differences (P > 0.05) were observed between equilibration times (0 h vs. 4 h) for sperm samples incubated with or without different concentrations of Camellia sinensis extract. In conclusion, addition of Camellia sinensis extract at level of 10 mg/L can improve post-thawing quality of ram semen cryopreserved in a soybean lecithin extender. However, further research is needed to standardize the process of Camellia sinensis extraction and specially for identifying which compounds are responsible of its beneficial effect on ram sperm cryopreservation.
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Affiliation(s)
- Mahdieh Mehdipour
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Hossein Daghigh Kia
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Abouzar Najafi
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | | | - Olga García-Álvarez
- Biomedical Center, Medical Faculty in Pilsen, Charles University in Prague, Alej, Svobody 1655/76, 323 00 Pilsen, Czechia
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34
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Del Olmo E, García-Álvarez O, Maroto-Morales A, Ramón M, Iniesta-Cuerda M, Martinez-Pastor F, Montoro V, Soler AJ, Garde JJ, Fernández-Santos MR. Oestrous sheep serum balances ROS levels to supply in vitro capacitation of ram spermatozoa. Reprod Domest Anim 2016; 51:743-50. [DOI: 10.1111/rda.12741] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 06/28/2016] [Indexed: 12/29/2022]
Affiliation(s)
- E Del Olmo
- SaBio IREC (CSIC - UCLM - JCCM); Albacete Spain
| | - O García-Álvarez
- SaBio IREC (CSIC - UCLM - JCCM); Albacete Spain
- Biomedical Center; Medical Faculty in Pilsen; Pilsen Czech Republic
| | | | - M Ramón
- Regional Center of Animal Selection and Reproduction (CERSYRA) JCCM; Valdepeñas Spain
| | | | - F Martinez-Pastor
- Department of Molecular Biology; Institute for Animal Health and Cattle Development (INDEGSAL); University of León; León Spain
| | - V Montoro
- SaBio IREC (CSIC - UCLM - JCCM); Albacete Spain
| | - AJ Soler
- SaBio IREC (CSIC - UCLM - JCCM); Albacete Spain
| | - JJ Garde
- SaBio IREC (CSIC - UCLM - JCCM); Albacete Spain
| | - MR Fernández-Santos
- SaBio IREC (CSIC - UCLM - JCCM); Albacete Spain
- Faculty of Pharmacy; University of Castilla-La Mancha; Albacete Spain
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Toker MB, Alcay S, Gokce E, Ustuner B. Cryopreservation of ram semen with antioxidant supplemented soybean lecithin-based extenders and impacts on incubation resilience. Cryobiology 2016; 72:205-9. [PMID: 27157891 DOI: 10.1016/j.cryobiol.2016.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/22/2016] [Accepted: 05/02/2016] [Indexed: 11/20/2022]
Abstract
The scope of this study was investigation the affects of various antioxidants on 1% soybean lecithin-based semen extenders for ram semen cryopreservation. Ejaculates, collected via electrically stimulated ejaculation, that have a thick consistency, rapid wave motion (3-5 on a 0-5 scale) and >75% initial motility were pooled. The pooled samples were split into four equal aliquots as 5 mM Methionine, 5 mM Cysteamine, 1 mM Cysteine and a sample of antioxidant-free control group. Each sample group was diluted to a ratio of 1/5 (semen/extender, v/v) as final concentration and two step dilution method was used for cryopreservation. Extender groups were assessed for sperm motility, plasma membrane functional integrity using hypoosmotic swelling test (HOST), damaged acrosome using FITC-Pisum sativum agglutinin (PSA-FITC) and DNA integrity using terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL). Semen samples also incubated for 6 h in humidified air with 5% CO2 at 39 °C to evaluate post-thaw incubation resilience of semen characteristics. The results showed that freezing and thawing procedures had negative effects on motility (P < 0.05), plasma membrane integrity (P < 0.05) and acrosomal integrity (P < 0.05). After 6 h of incubation time, the Cysteine supplemented extender group yielded significantly higher results than other extender groups in terms of spermatological parameters. Furthermore MDA levels in the antioxidant groups were lower than control group (P < 0.05). Nevertheless, there were no significant differences among antioxidant groups.
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Affiliation(s)
- M Berk Toker
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey.
| | - Selim Alcay
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey
| | - Elif Gokce
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey
| | - Burcu Ustuner
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey
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Iaffaldano N, Paventi G, Pizzuto R, Di Iorio M, Bailey JL, Manchisi A, Passarella S. Helium-neon laser irradiation of cryopreserved ram sperm enhances cytochrome c oxidase activity and ATP levels improving semen quality. Theriogenology 2016; 86:778-84. [PMID: 27036659 DOI: 10.1016/j.theriogenology.2016.02.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 02/03/2016] [Accepted: 02/28/2016] [Indexed: 02/04/2023]
Abstract
This study examines whether and how helium-neon laser irradiation (at fluences of 3.96-9 J/cm(2)) of cryopreserved ram sperm helps improve semen quality. Pools (n = 7) of cryopreserved ram sperm were divided into four aliquots and subjected to the treatments: no irradiation (control) or irradiation with three different energy doses. After treatment, the thawed sperm samples were compared in terms of viability, mass and progressive sperm motility, osmotic resistance, as well as DNA and acrosome integrity. In response to irradiation at 6.12 J/cm(2), mass sperm motility, progressive motility and viability increased (P < 0.05), with no significant changes observed in the other investigated properties. In parallel, an increase (P < 0.05) in ATP content was detected in the 6.12 J/cm(2)-irradiated semen samples. Because mitochondria are the main cell photoreceptors with a major role played by cytochrome c oxidase (COX), the COX reaction was monitored using cytochrome c as a substrate in both control and irradiated samples. Laser treatment resulted in a general increase in COX affinity for its substrate as well as an increase in COX activity (Vmax values), the highest activity obtained for sperm samples irradiated at 6.12 J/cm(2) (P < 0.05). Interestingly, in these irradiated sperm samples, COX activity and ATP contents were positively correlated, and, more importantly, they also showed positive correlation with motility, suggesting that the improved sperm quality observed was related to mitochondria-laser light interactions.
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Affiliation(s)
- N Iaffaldano
- Department of Agricultural, Environmental, and Food Sciences, University of Molise, Campobasso, Italy.
| | - G Paventi
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
| | - R Pizzuto
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
| | - M Di Iorio
- Department of Agricultural, Environmental, and Food Sciences, University of Molise, Campobasso, Italy
| | - J L Bailey
- Département des Sciences Animales, Centre de Recherche en Biologie de la Reproduction, Université Laval, Québec, Canada
| | - A Manchisi
- Department of Agricultural, Environmental, and Food Sciences, University of Molise, Campobasso, Italy
| | - S Passarella
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy
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Yeste M. Sperm cryopreservation update: Cryodamage, markers, and factors affecting the sperm freezability in pigs. Theriogenology 2015; 85:47-64. [PMID: 26506124 DOI: 10.1016/j.theriogenology.2015.09.047] [Citation(s) in RCA: 215] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/20/2015] [Accepted: 09/22/2015] [Indexed: 02/04/2023]
Abstract
Cryopreservation is the most efficient method for long-term preservation of mammalian sperm. However, freeze-thawing procedures may strongly impair the sperm function and survival and thus decrease the reproductive performance. In addition, the sperm resilience to withstand cryopreservation, also known as freezability, presents a high individual variability. The present work summarizes the principles of cryoinjury and the relevance of permeating and nonpermeating cryoprotective agents. Descriptions about sperm cryodamage are mainly focused on boar sperm, but reference to other mammalian species is also made when relevant. Main cryoinjuries not only regard to sperm motility and membrane integrity, but also to the degradation effect exerted by freeze-thawing on other important components for sperm fertilizing ability, such as mRNAs. After delving into the main differences between good and poor freezability boar ejaculates, those protein markers predicting the sperm ability to sustain cryopreservation are also mentioned. Moreover, factors that may influence sperm freezability, such as season, diet, breed, or ejaculate fractions are discussed, together with the effects of different additives, like seminal plasma and antioxidants. After briefly referring to the effects of long-term sperm preservation in frozen state and the reproductive performance of frozen-thawed boar sperm, this work speculates with new research horizons on the preservation of boar sperm, such as vitrification and freeze-drying.
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Affiliation(s)
- Marc Yeste
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, UK.
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Casao A, Mata-Campuzano M, Ordás L, Cebrián-Pérez JA, Muiño-Blanco T, Martínez-Pastor F. Cleaved PARP-1, an Apoptotic Marker, can be Detected in Ram Spermatozoa. Reprod Domest Anim 2015; 50:688-91. [PMID: 26031316 DOI: 10.1111/rda.12549] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/09/2015] [Indexed: 12/25/2022]
Abstract
The presence of apoptotic features in spermatozoa has been related to lower quality and functional impairment. Members of the poly-ADP-ribose polymerases (PARP) familyare involved in both DNA repair and apoptosis, playing important roles in spermatogenesis. Poly-ADP-ribose polymerase can be cleaved by caspases, and the presence of its cleavage product (cPARP) in spermatozoa has been related to chromatin remodelling during spermatogenesis and to the activation of apoptotic pathways. There are no reports on immunodetection of cPARP in ram spermatozoa; thus, we have tested a commercially available antibody for this purpose. cPARP was microscopically detected in the acrosomal ridge of some spermatozoa (indirect immunofluorescence). A preliminary study was carried out by flow cytometry (direct immunofluorescence, FITC). Ram semen was extended in TALP and incubated for 4 h with apoptosis inducers staurosporine (10 μm) or betulinic acid (200 μm). Both inducers and incubation caused a significant increase in cPARP spermatozoa (0 h, control: 21.4±3.3%, inducers: 44.3±1.4%; 4 h, control: 44.3±2.4%, inducers: 53.3±1.4%). In a second experiment, we compared the sperm fractions after density gradient separation (pellet and interface). The pellet yielded a slightly lower proportion of cPARP spermatozoa (28.5±1.2% vs 36.2±2.0% in the interface; p < 0.001), and a 12-h incubation increased cPARP similarly in both fractions (p < 0.001). cPARP seems to be an early marker of apoptosis in ram semen, although its presence in untreated samples was weakly related to worse quality (pellet/interface). We suggest to study the relationship of PARP and cPARP levels with between-male differences on sperm fertility.
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Affiliation(s)
- A Casao
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón, Universidad de Zaragoza, Zaragoza, Spain
| | - M Mata-Campuzano
- INDEGSAL, University of León, León, Spain.,Department of Molecular Biology, University of León, León, Spain
| | - L Ordás
- INDEGSAL, University of León, León, Spain.,Department of Molecular Biology, University of León, León, Spain
| | - J A Cebrián-Pérez
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón, Universidad de Zaragoza, Zaragoza, Spain
| | - T Muiño-Blanco
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón, Universidad de Zaragoza, Zaragoza, Spain
| | - F Martínez-Pastor
- INDEGSAL, University of León, León, Spain.,Department of Molecular Biology, University of León, León, Spain
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