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Mateo-Otero Y, Fernández-López P, Gil-Caballero S, Fernandez-Fuertes B, Bonet S, Barranco I, Yeste M. 1H Nuclear Magnetic Resonance of Pig Seminal Plasma Reveals Intra-Ejaculate Variation in Metabolites. Biomolecules 2020; 10:E906. [PMID: 32549232 PMCID: PMC7355445 DOI: 10.3390/biom10060906] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/04/2020] [Accepted: 06/10/2020] [Indexed: 12/19/2022] Open
Abstract
In pigs, ejaculate is expelled in fractions, mainly the sperm-rich fraction (SRF) and the post-SRF (PSRF), which differ in both sperm content and origin. In addition, intra-ejaculate variability between fractions in terms of sperm reproductive characteristics has been previously reported, the highest sperm quality being observed in the first 10 mL of the SRF (SRF-P1). As seminal plasma (SP) composition has been purported to influence sperm physiology, the aim of this study was to profile pig SP metabolite composition and to find putative differences between the ejaculate portions (SRF-P1, the rest of SRF [SRF-P2], PSRF) and entire ejaculate (EE). To this end, ejaculates (n = 8, one per boar) were collected in fractions and SP was analyzed using 1H Nuclear Magnetic Resonance spectroscopy. We identified 19 metabolites present in all ejaculate portions and the EE, and reported correlations between the metabolites. Additionally, and for the first time in mammals, we found intra-ejaculate variability in the SP metabolites, observing different relative abundances in choline, glycerophosphocholine and glycine. Regarding their influence in sperm physiology, we hypothesize that these metabolites may explain the specific reproductive characteristics of each ejaculate portion. Finally, the reported SP metabolites could serve as a first steppingstone in the study of quality, functionality, and fertility biomarkers.
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Affiliation(s)
- Yentel Mateo-Otero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (Y.M.-O.); (B.F.-F.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Pol Fernández-López
- Theoretical and Computational Ecology Group, Centre for Advanced Studies of Blanes (CEAB), Consejo Superior de Investigaciones Científicas (CSIC), E-17300 Girona, Spain;
| | - Sergi Gil-Caballero
- NMR Facility, Research Technical Services (STR), University of Girona, E-17003 Girona, Spain;
| | - Beatriz Fernandez-Fuertes
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (Y.M.-O.); (B.F.-F.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Sergi Bonet
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (Y.M.-O.); (B.F.-F.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Isabel Barranco
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (Y.M.-O.); (B.F.-F.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
- Department of Medicine and Animal Surgery, Faculty of Veterinary Medicine, University of Murcia, E-30100 Murcia, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; (Y.M.-O.); (B.F.-F.); (S.B.)
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
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Perez-Patiño C, Barranco I, Li J, Padilla L, Martinez EA, Rodriguez-Martinez H, Roca J, Parrilla I. Cryopreservation Differentially Alters the Proteome of Epididymal and Ejaculated Pig Spermatozoa. Int J Mol Sci 2019; 20:ijms20071791. [PMID: 30978930 PMCID: PMC6479301 DOI: 10.3390/ijms20071791] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 04/10/2019] [Indexed: 01/08/2023] Open
Abstract
Cryopreservation induces differential remodeling of the proteome in mammalian spermatozoa. How these proteome changes relate to the loss of sperm function during cryopreservation remains unsolved. The present study aimed to clarify this issue evaluating differential changes in the proteome of fresh and frozen-thawed pig spermatozoa retrieved from the cauda epididymis and the ejaculate of the same boars, with clear differences in cryotolerance. Spermatozoa were collected from 10 healthy, sexually mature, and fertile boars, and cryopreserved using a standard 0.5 mL-straw protocol. Total and progressive motility, viability, and mitochondria membrane potential were higher and membrane fluidity and reactive oxygen species generation lower in frozen-thawed (FT) epididymal than ejaculated spermatozoa. Quantitative proteomics of fresh and FT spermatozoa were analyzed using a LC-ESI-MS/MS-based Sequential Window Acquisition of All Theoretical Spectra approach. Cryopreservation quantitatively altered more proteins in ejaculated than cauda epididymal spermatozoa. Differential protein-protein networks highlighted a set of proteins quantitatively altered in ejaculated spermatozoa, directly involved in mitochondrial functionality which would explain why ejaculated spermatozoa deteriorate during cryopreservation.
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Affiliation(s)
- Cristina Perez-Patiño
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
| | - Isabel Barranco
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
- Department of Biology, Faculty of Sciences, University of Girona, 17003 Girona, Spain.
| | - Junwei Li
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
- School of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China.
| | - Lorena Padilla
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
| | - Emilio A Martinez
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
| | - Heriberto Rodriguez-Martinez
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, SE-58185 Linköping, Sweden.
| | - Jordi Roca
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
| | - Inmaculada Parrilla
- Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, 30100 Murcia, Spain.
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3
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Luther AM, Waberski D. In vitro aging of boar spermatozoa: role of sperm proximity and seminal plasma. Andrology 2019; 7:382-390. [PMID: 30793513 DOI: 10.1111/andr.12600] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/08/2019] [Accepted: 01/28/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Knowledge on the effect of seminal plasma on sperm function in extended semen during in vitro storage is lacking. OBJECTIVES The aim was to examine the interactive role of sperm concentration and seminal plasma concentration on boar sperm function during in vitro aging. MATERIAL AND METHODS Experiment 1: Twenty-one boar ejaculates were aliquoted with Beltsville Thawing Solution into five semen doses containing between 32.5 and 8.5 × 106 sperm/mL. Experiment 2: Semen samples (n = 8) containing 18 × 106 or 10 × 106 sperm/mL with their natural amount of seminal plasma and 10 × 106 sperm/mL substituted with autologous seminal plasma to the same concentration as in doses with 18 × 106 sperm/mL were prepared. Experiment 3: Four variants of semen doses containing 18 × 106 or 10 × 106 sperm/mL with either 10% or 0.5% (v/v) seminal plasma were used. Lipid peroxidation was assessed using Bodipy 581/591 in samples (n = 8) with two different sperm concentrations. Semen was examined during 144-h storage at 17 °C by computer-assisted semen analysis and flow cytometry. RESULTS Experiment 1: 3D kinematic patterns revealed a concentration- and time-dependent loss of sperm kinematics in samples with < 23 × 106 sperm/mL (p < 0.05). Percent viable spermatozoa with high mitochondria membrane potential were lower (p < 0.05) in samples with < 15 × 106 sperm/mL. Experiment 2: Seminal plasma supplementation in samples with 10 × 106 sperm/mL did not restore the loss of sperm kinematics (p > 0.05). Experiment 3: At 144 h, motility was lowest in samples containing 10 × 106 sperm/mL and 10% (v/v) seminal plasma (p < 0.05). Sperm lipid peroxidation did not differ between samples with different sperm concentration. CONCLUSION Long-term exposure to seminal plasma has a negative impact on in vitro-aged boar spermatozoa. Reduced sperm-to-sperm proximity but not the reduction of seminal plasma limits sperm function in long-term stored boar semen.
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Affiliation(s)
- A-M Luther
- Unit for Reproductive Medicine of Clinics/Clinic for Pigs and Small Ruminants, University of Veterinary Medicine Hannover, Hannover, Germany
| | - D Waberski
- Unit for Reproductive Medicine of Clinics/Clinic for Pigs and Small Ruminants, University of Veterinary Medicine Hannover, Hannover, Germany
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Roca J, Broekhuijse MLWJ, Parrilla I, Rodriguez-Martinez H, Martinez EA, Bolarin A. Boar Differences In Artificial Insemination Outcomes: Can They Be Minimized? Reprod Domest Anim 2016; 50 Suppl 2:48-55. [PMID: 26174919 DOI: 10.1111/rda.12530] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 03/16/2015] [Indexed: 12/20/2022]
Abstract
In Western countries, where pig breeding and production are intensive, there is a documented variability in fertility between farms with boar-related parameters only accounting to 6% of this total variation of in vivo fertility. Such low boar effect could be a result of the rigorous control of sires and ejaculates yielding AI-doses exerted by the highly specialized AI-centres that monopolize the market. However, some subfertile boars pass through these rigorous controls and consequently reach the AI-programmes. Here, we discuss why testing young boars for chromosomal defects, sperm nuclear chromatin integrity and in vitro fertilizing ability can be discriminative and economically sound for removing these less fertile boars. Alongside, we discuss why boars differ in the ability of their sperm to tolerate cryopreservation or sex sorting.
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Affiliation(s)
- J Roca
- Veterinary Medicine, University of Murcia, Murcia, Spain
| | | | - I Parrilla
- Veterinary Medicine, University of Murcia, Murcia, Spain
| | - H Rodriguez-Martinez
- Department of Clinical & Experimental Medicine (IKE), University of Linköping, Linköping, Sweden
| | - E A Martinez
- Veterinary Medicine, University of Murcia, Murcia, Spain
| | - A Bolarin
- AIM iberica, Topigs Norsvin, Las Rozas, Spain
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Rath D, Tiedemann D, Gamrad L, Johnson LA, Klein S, Kues W, Mancini R, Rehbock C, Taylor U, Barcikowski S. Sex-Sorted Boar Sperm - An Update on Related Production Methods. Reprod Domest Anim 2016; 50 Suppl 2:56-60. [PMID: 26174920 DOI: 10.1111/rda.12572] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 05/20/2015] [Indexed: 01/13/2023]
Abstract
As in other mammals, sex sorting of pig sperm is based on quantitative flow cytometry. A major disadvantage of the technique is the relatively low efficiency to produce enough sorted sperm for artificial insemination. However, several approaches are on the way to make sexed pig sperm available for commercial application. In this context, for example, the growing field of nanotechnology may significantly contribute to these developments, as it provides highly efficient bio-nanoprobes, for example, based on plasmonic nanoparticles. Independent of the method, further development requires enormous investments and set-up of logistics to get the technology into the practical pig market. Only global players will be able to establish the necessary research projects, but in the end, a significant shift of sex ratios will be available for pig producers as it is already the case for the dairy industry.
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Affiliation(s)
- D Rath
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, Germany
| | - D Tiedemann
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, Germany
| | - L Gamrad
- Institute for Technical Chemistry I UDE, Essen, Germany.,CENIDE, Essen, Germany
| | | | - S Klein
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, Germany
| | - W Kues
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, Germany
| | - R Mancini
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, Germany
| | - C Rehbock
- Institute for Technical Chemistry I UDE, Essen, Germany.,CENIDE, Essen, Germany
| | - U Taylor
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institut, Neustadt-Mariensee, Germany
| | - S Barcikowski
- Institute for Technical Chemistry I UDE, Essen, Germany.,CENIDE, Essen, Germany
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