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Impact of Cryopreservation on Motile Subpopulations and Tyrosine-Phosphorylated Regions of Ram Spermatozoa during Capacitating Conditions. BIOLOGY 2021; 10:biology10111213. [PMID: 34827206 PMCID: PMC8614982 DOI: 10.3390/biology10111213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/09/2021] [Accepted: 11/17/2021] [Indexed: 11/24/2022]
Abstract
Simple Summary Spermatozoa go through diverse changes to achieve their fertilizing potential (capacitation) and develop a specific motility pattern (hyperactivation). However, to ensure a greater reproductive success, not all the spermatozoa present in an ejaculate react equally or at the same time. Therefore, a comparative analysis was performed in the present study to improve our current understanding about how cryopreservation may affect the heterogeneous nature of fresh ejaculates during these two events. Among the four motile sperm subpopulations identified in fresh and frozen-thawed ram semen, one of them developed a hyperactivated-like movement and was the main group involve in those changes associated with sperm capacitation based on the marked increase and the positive correlation with mitochondrial activity and tyrosine phosphorylation, two relevant parameters that usually increase during capacitation. In addition, cryopreservation altered the distribution of the motile sperm subpopulations. Although the subpopulation with hyperactivated-like movement increased at the beginning of incubation in frozen-thawed samples, this subpopulation together with the subpopulation of rapid and progressive spermatozoa were replaced after a prolonged incubation by the subpopulation of slow spermatozoa with the lowest mitochondrial activity, which clearly indicate the reduction in sperm quality. These findings will aid to optimize the current cryopreservation and in vitro fertilization protocols. Abstract The heterogeneous nature of ejaculates highlights the relevance of studying the behavior of different sperm subpopulations. Changes in sperm motility and the increase in tyrosine phosphorylation are key events that usually occur during capacitation and can be modified by the cryopreservation process. However, the relationship between both events remains poorly defined throughout capacitation in the different sperm subpopulations. Fresh and frozen-thawed spermatozoa were incubated in capacitating (CAP) and non-capacitating (NC) media up to 240 min. Sperm kinematics, tyrosine phosphorylation and mitochondrial activity were measured by the CASA system and imaging flow cytometry. Four motile sperm subpopulations (SP) were identified in fresh and frozen-thawed ram semen after the cluster analysis. Incubation under CAP conditions over time led to greater changes in the percentage of spermatozoa included in each subpopulation compared to NC conditions, being different between fresh and frozen-thawed spermatozoa. The SP1, characterized by slow spermatozoa, progressively increased after 15 min in frozen-thawed samples incubated in both media but not in fresh ones. The SP4, characterized by fast and non-linear spermatozoa, showed a marked increase during CAP, but not under NC conditions, occurring more rapidly in frozen-thawed spermatozoa. This subpopulation (SP4) was also the only one positively and strongly correlated with mitochondrial activity and all phosphorylated sperm regions during capacitation, either in fresh or frozen-thawed samples. Our results indicated that in vitro capacitation induced significant changes in the distribution of motile sperm subpopulations, being affected by cryopreservation. Notwithstanding, the subpopulation which probably represents hyperactivated-like spermatozoa (SP4) also increased in frozen-thawed samples, occurring faster and simultaneously to the increment of mitochondrial activity and tyrosine phosphorylation of different sperm regions.
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Yang M, Guan S, Tao J, Zhu K, Lv D, Wang J, Li G, Gao Y, Wu H, Liu J, Cao L, Fu Y, Ji P, Lian Z, Zhang L, Liu G. Melatonin promotes male reproductive performance and increases testosterone synthesis in mammalian Leydig cells†. Biol Reprod 2021; 104:1322-1336. [PMID: 33709108 DOI: 10.1093/biolre/ioab046] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 03/09/2021] [Indexed: 01/16/2023] Open
Abstract
Leydig cells play a critical role in male reproductive physiology, and their dysfunction is usually associated with male infertility. Melatonin has an important protective and regulatory role in these cells. However, the lack of suitable animal models impedes us from addressing the impact of endogenous melatonin on these cells. In the current study, by using arylalkylamine N-acetyltransferase (AANAT) overexpression transgenic sheep and AANAT knockout mice, we confirmed the regulatory effects of endogenously occurring melatonin on Leydig cells as well as its beneficial effects on male reproductive performance. The results showed that the endogenously elevated melatonin level was correlated with decreased Leydig cell apoptosis, increased testosterone production, and improved quality of sperm in melatonin-enriched transgenic mammals. Signal transduction analysis indicated that melatonin targeted the mitochondrial apoptotic Bax/Bcl2 pathway and thus suppressed Leydig cell apoptosis. In addition, melatonin upregulated the expression of testosterone synthesis-related genes of Steroidogenic Acute Regulatory Protein (StAR), Steroidogenic factor 1 (SF1), and Transcription factor GATA-4 (Gata4) in Leydig cells. This action was primarily mediated by the melatonin nuclear receptor RAR-related orphan receptor alpha (RORα) since blockade of this receptor suppressed the effect of melatonin on testosterone synthesis. All of these actions of melatonin cause Leydig cells to generate more testosterone, which is necessary for spermatogenesis in mammals. In contrast, AANAT knockout animals have dysfunctional Leydig cells and reduced reproductive performance.
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Affiliation(s)
- Minghui Yang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shengyu Guan
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jingli Tao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China.,College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kuanfeng Zhu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Dongying Lv
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jing Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guangdong Li
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yuefeng Gao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hao Wu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jinghao Liu
- Laboratory Animal Centre, Peking University, Beijing, China
| | - Lin Cao
- Beijing Institute of Feed Control, Beijing Municipal Bureau of Agriculture and Rural Affairs, Beijing, China
| | - Yao Fu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Pengyun Ji
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhengxing Lian
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lu Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guoshi Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Peres Campanholi S, Garcia Neto S, Basso AC, de Agostini Losano JD, Perez Siqueira AF, Nichi M, Ortiz D'Avila Assumpção ME, Afonso de Freitas L, Paro de Paz CC, Ferraudo AS, Morato Monteiro F, Unno Gimenes L. Estimate of in vitro embryo production based on sperm subpopulations in Senepol bulls. Theriogenology 2020; 161:98-107. [PMID: 33302167 DOI: 10.1016/j.theriogenology.2020.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 11/25/2020] [Accepted: 11/25/2020] [Indexed: 11/28/2022]
Abstract
In cattle, in vitro embryo production (IVEP) is an important reproductive biotechnology responsible for the rapid expansion of the Senepol breed in our country. This breed has shown important results when used in crossbreeding and estimate IVEP in Senepol based on seminal analysis would be valuable for the semen cryopreservation industry, research institutes and breeders. Combining the evaluation of sperm subpopulations with analysis of other sperm attributes may help to improve fertility predictions in cattle. Therefore, the objectives of the present study were to: 1) identify and characterize motile sperm subpopulations in cryopreserved Senepol semen following the washing process carried out before in vitro fertilization, and 2) to determine an model for estimate IVEP based on sperm subpopulations in conjunction with other sperm quality analyzes. Samples of 38 cryopreserved semen from 28 Senepol bulls, chosen based on retrospective data from 386 IVEP routines, underwent the semen washing and were evaluated by the computer-assisted sperm analysis system. Sperm morphology was evaluated by wet preparation technique, and plasma and acrosomal membranes integrity, mitochondrial potential, oxidative status and chromatin resistance were analyzed by flow cytometry. After multivariate analysis of principal components and grouping, three sperm subpopulations were identified: SBP1 (fast and progressive motility), SBP2 (hyperactivated motility) and SBP3 (slow non-progressive motility). After categorization of IVEP in high, medium and low embryo yield, logistic regression analysis was applied to associate the results of subpopulations and other sperm quality variables with IVEP. The SBP1 and SBP2 variables affected embryo production, and an IVEP estimation model was generated for Senepol bulls based on these two subpopulations: embryo yield = 0.1563 + 0.0328 (SBP1) + 0.0173 (SBP2). SBP1 and SBP2 represents the absolute value of the percentage of subpopulations in semen. If the calculated value (by this equation) is close to 1, the embryo yield will be low; if is close to 2, will be medium; if is close to 3, will be high. In conclusion, three subpopulations were found for Senepol semen and, despite all analyzed variables, only SBP1 and SBP2 were included in the model to estimate IVEP in this breed.
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Affiliation(s)
| | | | | | | | | | - Marcílio Nichi
- Universidade de São Paulo, FMVZ/USP, São Paulo, São Paulo, Brazil
| | | | | | | | | | - Fabio Morato Monteiro
- Centro Avançado de Pesquisa de Bovinos de Corte, APTA/IZ, Sertãozinho, São Paulo, Brazil
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Suprayogi TW, Hardijanto H, Hariadi M, Rantam FA, Darmanto W. Utilization of bull fertility-associated antigen to improve the quality of frozen bull semen. Vet World 2020; 13:2112-2117. [PMID: 33281344 PMCID: PMC7704305 DOI: 10.14202/vetworld.2020.2112-2117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/11/2020] [Indexed: 11/23/2022] Open
Abstract
Background and Aim: The implementation of artificial insemination (AI) is one of the strategies to use superior male semen optimally to improve the genetic quality of livestock. One of the factors that influence AI is a fertility-associated antigen (FAA). This research aimed to examine the effects of FAA extracted from the accessory sex glands of a bull from a slaughterhouse that was added in bull semen freezing medium to increase cattle (bull) fertilization. Materials and Methods: This research used a randomized complete block design. It consisted of two research phases, namely, explorative and experimental phases. The first phase involved determining the FAA molecular weight using the SDS-PAGE method, and the second phase consisted of laboratory and field testing, including testing the quality of frozen semen supplemented with FAA extracted from the accessory glands of a bull’s genital organ from a slaughterhouse with various doses (0, 5, 10, and 15 μg in every 200 million progressively motile spermatozoa). Results: The results showed that the percentages of bull sperm motility between the groups without and with the additional administration of FAA with a dose of 5 μg did not significantly differ. However, there was a difference between the groups without and with the additional administration of FAA with doses of 10 and 15 μg. After further testing, the highest percentage of sperm progressive motility occurred at a dose of 15 μg/200 million progressively motile spermatozoa (P3), which was equal to 2.59±46.88b (%). Conclusion: This research found that not all of the accessory glands (seminal vesicles) of bulls taken from the slaughterhouse contain the FAA. An FAA level between the accessory glands (seminal vesicles) of one cattle to another is different. The addition of the FAA protein from the accessory sex glands of a bull’s organ in cattle semen can improve fertility by increasing the percentage of viability, motility, intact plasma membrane of spermatozoa, and pregnancy rate of bulls and decreasing the sperm capacitation post-thawing.
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Affiliation(s)
- Tri Wahyu Suprayogi
- Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Hardijanto Hardijanto
- Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Mas'ud Hariadi
- Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Fedik Abdul Rantam
- Department of Microbiology and Virology, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya 60115, Indonesia
| | - Win Darmanto
- Department of Biology, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia
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Peris-Frau P, Álvarez-Rodríguez M, Martín-Maestro A, Iniesta-Cuerda M, Sánchez-Ajofrín I, Medina-Chávez DA, Garde JJ, Villar M, Rodríguez-Martínez H, Soler AJ. Unravelling how in vitro capacitation alters ram sperm chromatin before and after cryopreservation. Andrology 2020; 9:414-425. [PMID: 32888251 DOI: 10.1111/andr.12900] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 08/17/2020] [Accepted: 08/30/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Sperm chromatin structure provides valuable information for the prediction of male fertility and can be altered during different procedures. Previous studies have shown that sperm chromatin condensation decreased during in vitro capacitation. Moreover, cryopreservation can affect sperm DNA integrity and chromatin compaction. OBJECTIVES This study aimed to investigate dynamic modifications produced in the chromatin structure of ram spermatozoa during in vitro capacitation before and after cryopreservation. MATERIALS AND METHODS Chromatin decondensation (AB+), DNA methylation, DNA fragmentation index (%DFI) and high DNA stainability (HDS) were evaluated in fresh and frozen-thawed ram spermatozoa incubated under capacitating (CAP) conditions at 1, 5, 15, 30, 60, 120, 180 and 240 minutes and under non-capacitating (NC) conditions at 0, 15 and 240 minutes. RESULTS Incubation in NC conditions did not induce significant changes in chromatin condensation (P > .05; AB + and HDS). However, incubation of fresh and cryopreserved ram spermatozoa under CAP conditions significantly increased chromatin decondensation (P < .05), reaching the highest percentage of AB + and HDS from 180 to 240 minutes in fresh samples and from 5 to 30 minutes in cryopreserved samples. Both variables (HDS and AB+) were positively correlated with tyrosine phosphorylation, total motility, progressive motility, curvilinear velocity and amplitude of lateral head displacement, as well as between them under CAP conditions in fresh and cryopreserved spermatozoa. DNA methylation significantly increased in cryopreserved spermatozoa (P < .05), but only after extended incubation under CAP conditions (60-240 minutes), while the %DFI, albeit higher in cryopreserved samples, remained constant under CAP and NC conditions in both types of sample (P > .05). DISCUSSION AND CONCLUSIONS Our results suggest that sperm chromatin condensation decreased progressively during in vitro capacitation of ram spermatozoa, while sperm DNA integrity remained intact. Such changes in chromatin condensation appeared faster after sperm cryopreservation.
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Affiliation(s)
- Patricia Peris-Frau
- SaBio IREC (CSIC - UCLM-JCCM), ETSIAM, Albacete, Spain.,Department of Biomedical and Clinical Sciences (BKV), BHK/Obstetrics & Gynaecology, Linköping University, Linköping, Sweden
| | - Manuel Álvarez-Rodríguez
- Department of Biomedical and Clinical Sciences (BKV), BHK/Obstetrics & Gynaecology, Linköping University, Linköping, Sweden
| | | | | | | | | | | | - Margarita Villar
- SaBio IREC (CSIC - UCLM-JCCM), ETSIAM, Albacete, Spain.,Biochemistry Section, Faculty of Science, Chemical Technologies, and Regional Centre for Biomedical Research (CRIB), Albacete, Spain
| | - Heriberto Rodríguez-Martínez
- Department of Biomedical and Clinical Sciences (BKV), BHK/Obstetrics & Gynaecology, Linköping University, Linköping, Sweden
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Gimeno-Martos S, Miguel-Jiménez S, Casao A, Cebrián-Pérez JA, Muiño-Blanco T, Pérez-Pe R. Underlying molecular mechanism in the modulation of the ram sperm acrosome reaction by progesterone and 17β-estradiol. Anim Reprod Sci 2020; 221:106567. [PMID: 32861117 DOI: 10.1016/j.anireprosci.2020.106567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 01/09/2023]
Abstract
Steroid hormones progesterone (P4) and 17β-estradiol (E2) not only have important functions in regulation of reproductive processes in mammals but also have direct effects on spermatozoa. There can be induction of the acrosome reaction in ram spermatozoa by P4 and E2 and, in the present study, there was further investigation of mechanisms underlying this effect. In a medium containing agents that increase cAMP, the presence of both P4 and E2 led to changes in the localization of proteins phosphorylated in tyrosine residues evaluated by indirect immunofluorescence. The inclusion of P4 at 1 μM in the media induced an increase in Ca2+i and mobilization in the area of the acrosome (Fluo-4 and Rhod-5 staining, respectively), an increase in ROS (H2DCFDA staining) and a substantial disruption of the acrosome (evaluated using RCA), while E2 did not have these effects. There were no effects on cAMP concentrations or PKA activity with inclusion of these hormones in the media. The inclusion of P4 at 100 pM in the media led to changes in values for sperm kinematic variables which could indicate there was an inhibition of the hyperactivation caused by agents that induce an increase in cAMP concentrations. In conclusion, results from the present study indicate that P4 and E2 promote mechanisms regulating the acrosome reaction in ram spermatozoa, however, these effects on mechanisms are different for the two hormones, and for E2, require further clarification.
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Affiliation(s)
- S Gimeno-Martos
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain.
| | - S Miguel-Jiménez
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - A Casao
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - J A Cebrián-Pérez
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - T Muiño-Blanco
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - R Pérez-Pe
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón (IUCA), School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
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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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Peris-Frau P, Martín-Maestro A, Iniesta-Cuerda M, Sánchez-Ajofrín I, Cesari A, Garde JJ, Villar M, Soler AJ. Cryopreservation of ram sperm alters the dynamic changes associated with in vitro capacitation. Theriogenology 2020; 145:100-108. [DOI: 10.1016/j.theriogenology.2020.01.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 12/08/2019] [Accepted: 01/21/2020] [Indexed: 12/18/2022]
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Gimeno-Martos S, Casao A, Yeste M, Cebrián-Pérez JA, Muiño-Blanco T, Pérez-Pé R. Melatonin reduces cAMP-stimulated capacitation of ram spermatozoa. Reprod Fertil Dev 2019; 31:420-431. [PMID: 30209004 DOI: 10.1071/rd18087] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/07/2018] [Indexed: 12/15/2022] Open
Abstract
The presence of melatonin receptors on the surface of ram spermatozoa has led to speculation about melatonin having a role in sperm functionality. The aim of this study was to elucidate the mechanism through which melatonin regulates ram sperm capacitation induced by a cocktail containing cAMP-elevating agents. Cocktail samples capacitated in the presence of 1µM melatonin showed lower percentages of capacitated spermatozoa (chlortetracycline staining; P<0.001) together with a decrease in protein tyrosine phosphorylation (P<0.01) and lower levels of reactive oxygen species (ROS) and cAMP (P<0.05) compared with cocktail samples without the hormone. Determination of kinematic parameters, together with principal component and cluster analyses, allowed us to define four sperm subpopulations (SP). After 3h of incubation with cAMP-elevating agents, the percentages of spermatozoa belonging to SP1 (high straightness) and SP4 (less-vigorous spermatozoa with non-linear motility) increased while SP2 and SP3 (rapid spermatozoa starting hyperactivation or already hyperactivated) decreased compared with the control sample. The presence of melatonin at 100 pM and 10nM restored these subpopulations to values closer to those found in the control sample. These results indicate that melatonin at micromolar concentrations modulates ram sperm capacitation induced by cAMP-elevating agents, reducing ROS and cAMP levels, whereas at lower concentrations melatonin modifies motile sperm subpopulations. These findings warrant further studies on the potential use of melatonin for controlling capacitation in artificial insemination procedures.
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Affiliation(s)
- Silvia Gimeno-Martos
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - Adriana Casao
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, C/Maria Aurèlia Campany 69, Campus Montilivi, E-17003 Girona, Spain
| | - José A Cebrián-Pérez
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - Teresa Muiño-Blanco
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
| | - Rosaura Pérez-Pé
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain
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Epididymal and ejaculated sperm differ on their response to the cryopreservation and capacitation processes in mouflon (Ovis musimon). Sci Rep 2019; 9:15659. [PMID: 31666633 PMCID: PMC6821854 DOI: 10.1038/s41598-019-52057-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/23/2019] [Indexed: 12/27/2022] Open
Abstract
Spermatozoa must undergo the process of capacitation to fertilize the egg which involves a cell destabilizing process. Capacitation-like changes such as protein tyrosine phosphorylation (PTP) are associated with cryopreservation. The aim of this study was to compare the cryoresistance and capacitation response of epididymal and ejaculated sperm of European mouflon (Ovis musimon). Post-thaw sperm parameters were analysed from epididymal and ejaculated samples cryopreserved by slow-freezing or ultrarapid-freezing for comparison. Sperm capacitation status was assessed by the semiquantification of PTP levels, cell localization of PTP and kinematic clustering. Epididymal sperm had higher cryoresistance than ejaculated sperm in both freezing techniques, and slow-freezing rendered better results than ultrarapid-freezing in both sperm samples. Ejaculated sperm had higher PTP levels than epididymal sperm and, additionally, ejaculated sperm showed higher phosphorylation in capacitating (CA) than in non-capacitating (NCA) conditions while there was no effect of medium in epididymal sperm. There was a higher tail PTP in CA than in NCA conditions in both types of sperm. Kinematic analysis revealed that the cluster associated with hyperactivated movement increased in ejaculated sperm incubated in CA whereas no effect of medium was observed in epididymal sperm clusters. In conclusion, epididymal sperm showed better freezability and lower capacitation status compared to ejaculated sperm.
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van der Horst G, Maree L, du Plessis SS. Current perspectives of CASA applications in diverse mammalian spermatozoa. Reprod Fertil Dev 2019; 30:875-888. [PMID: 29576045 DOI: 10.1071/rd17468] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 11/25/2017] [Indexed: 12/11/2022] Open
Abstract
Since the advent of computer-aided sperm analysis (CASA) some four decades ago, advances in computer technology and software algorithms have helped establish it as a research and diagnostic instrument for the analysis of spermatozoa. Despite mammalian spermatozoa being the most diverse cell type known, CASA is a great tool that has the capacity to provide rapid, reliable and objective quantitative assessment of sperm quality. This paper provides contemporary research findings illustrating the scientific and commercial applications of CASA and its ability to evaluate diverse mammalian spermatozoa (human, primates, rodents, domestic mammals, wildlife species) at both structural and functional levels. The potential of CASA to quantitatively measure essential aspects related to sperm subpopulations, hyperactivation, morphology and morphometry is also demonstrated. Furthermore, applications of CASA are provided for improved mammalian sperm quality assessment, evaluation of sperm functionality and the effect of different chemical substances or pathologies on sperm fertilising ability. It is clear that CASA has evolved significantly and is currently superior to many manual techniques in the research and clinical setting.
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Affiliation(s)
- Gerhard van der Horst
- Department of Medical Bioscience, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
| | - Liana Maree
- Department of Medical Bioscience, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
| | - Stefan S du Plessis
- Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 19063, Tygerberg, 7505, South Africa
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Olivares C, Souza-Fabjan J, Fonseca J, Saraiva H, Côrtes L, Alfradique V, Balaro M, Oliveira R, Brandão F. Mini-percoll gradient may be used for frozen-thawed sperm selection in sheep. ARQ BRAS MED VET ZOO 2019. [DOI: 10.1590/1678-4162-9807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT This study evaluated the effect of increasing centrifugal force and reducing centrifugation time and volume in Percoll protocols on ram sperm parameters. Commercial semen of Santa Inês rams were used and five treatments were performed: traditional Percoll and mini-Percoll (MP) techniques (I- 5000 x g, 5min; II- 2500 x g, 5min; III- 1250 x g, 5min; IV- 700 x g, 10min). At post-thawing (PT) and post-selection protocols (0h), samples were assessed for spermatozoa recovery rate, motility, plasma membrane (PM) integrity, sperm capacitation and morphology and incubated at 37 C for 1, 2 and 3h. The sperm recovery rate averaged 9.1±1.4%, and most motility parameters were similar (P> 0.05) among protocols. VCL (µm/s) was higher (P< 0.05) after MP-II, III and IV (66.1±4.5) than traditional Percoll (46.3±4.9). Capacitation status and PM integrity were similar (P> 0.05) among treatments. For the first time, we have demonstrated the reduction of the gradient volume and centrifugation time associated with an increase on centrifugation force at Percoll can be successfully used for frozen-thawed ram sperm selection. MP may be used instead of traditional Percoll, decreasing costs and semen handling time.
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Affiliation(s)
| | | | | | | | | | | | | | - R.V. Oliveira
- Universidade Federal Rural do Rio de Janeiro, Brazil
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13
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Martínez-Rodríguez C, Anel-López L, Alvarez M, Ortega-Ferrusola C, Boixo JC, Peña FJ, Anel L, de Paz P. Progesterone stimulates the long-distance migration of capacitated ram spermatozoa through viscous media under geotactic condition. Theriogenology 2018; 118:7-15. [PMID: 29859396 DOI: 10.1016/j.theriogenology.2018.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 05/11/2018] [Accepted: 05/12/2018] [Indexed: 11/18/2022]
Abstract
Forward progressive motility of spermatozoa is an essential prerequisite for reproductive success, and sperm navigation is assisted by guidance mechanisms that may depend on micro-environmental factors. In the present study, we performed an integrated analysis of long-distance ram sperm migration in vitro that combined two environmental factors (10 μM progesterone and a geotactic effect) and the physiological status of the cells (capacitation treatment). A penetration assay was used in which spermatozoa had to travel 20 mm in a viscous medium (two media of differing viscosity: acrylamide and hyaluronic acid) through a tube device. The number of migrating spermatozoa, the physiology of the cells (motility analyzed using a CASA system; acrosomal status, viability and active mitochondria evaluated by flow cytometry; DNA fragmentation index calculated by quantitative PCR) and the morphometry of sperm heads (performed using an image analysis system) were evaluated after long-distance sperm migration. Ram sperm capacitation significantly stimulates cell migration through viscous media under geotactic conditions, and this effect is enhanced by progesterone induction. The rheological characteristics of viscous media have a marked impact on ram sperm migration, and acrylamide more favorably facilitates navigation over a large distance. The migrating spermatozoa are morphologically better adapted (high ellipticity) for displacement in viscous media and exhibit remarkably depleted mitochondrial membrane potential.
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Affiliation(s)
- Carmen Martínez-Rodríguez
- Animal Reproduction and Obstetrics, University of León, Spain; Molecular Biology (Cell Biology), University of León, Spain
| | - Luis Anel-López
- Animal Reproduction and Obstetrics, University of León, Spain; ITRA-ULE, INDEGSAL, University of León, 24071, León, Spain
| | - Mercedes Alvarez
- Animal Reproduction and Obstetrics, University of León, Spain; ITRA-ULE, INDEGSAL, University of León, 24071, León, Spain
| | - Cristina Ortega-Ferrusola
- Animal Reproduction and Obstetrics, University of León, Spain; ITRA-ULE, INDEGSAL, University of León, 24071, León, Spain
| | - Juan Carlos Boixo
- Animal Reproduction and Obstetrics, University of León, Spain; ITRA-ULE, INDEGSAL, University of León, 24071, León, Spain
| | - Fernando J Peña
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Luis Anel
- Animal Reproduction and Obstetrics, University of León, Spain; ITRA-ULE, INDEGSAL, University of León, 24071, León, Spain
| | - Paulino de Paz
- Animal Reproduction and Obstetrics, University of León, Spain; Molecular Biology (Cell Biology), University of León, Spain.
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14
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Luque GM, Dalotto-Moreno T, Martín-Hidalgo D, Ritagliati C, Puga Molina LC, Romarowski A, Balestrini PA, Schiavi-Ehrenhaus LJ, Gilio N, Krapf D, Visconti PE, Buffone MG. Only a subpopulation of mouse sperm displays a rapid increase in intracellular calcium during capacitation. J Cell Physiol 2018; 233:9685-9700. [PMID: 29953592 DOI: 10.1002/jcp.26883] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/23/2018] [Indexed: 12/11/2022]
Abstract
Mammalian sperm must undergo a functionally defined process called capacitation to be able to fertilize oocytes. They become capacitated in vivo by interacting with the female reproductive tract or in vitro in a defined capacitation medium that contains bovine serum albumin, calcium (Ca2+ ), and bicarbonate (HCO3 - ). In this work, sperm were double stained with propidium iodide and the Ca2+ dye Fluo-4 AM and analyzed by flow cytometry to determine changes in intracellular Ca2+ concentration ([Ca2+ ]i ) in individual live sperm. An increase in [Ca2+ ]i was observed in a subpopulation of capacitated live sperm when compared with noncapacitated ones. Sperm exposed to the capacitating medium displayed a rapid increase in [Ca2+ ]i within 1 min of incubation, which remained sustained for 90 min. These rise in [Ca2+ ]i after 90 min of incubation in the capacitating medium was evidenced by an increase in the normalized median fluorescence intensity. This increase was dependent on the presence of extracellular Ca2+ and, at least in part, reflected the contribution of a new subpopulation of sperm with higher [Ca2+ ]i . In addition, it was determined that the capacitation-associated [Ca2+ ]i increase was dependent of CatSper channels, as sperm derived from CatSper knockout (CatSper KO) or incubated in the presence of CatSper inhibitors failed to increase [Ca2+ ]i . Surprisingly, a minimum increase in [Ca2+ ]i was also observed in CatSper KO sperm suggesting the existence of other Ca2+ transport systems. Altogether, these results indicate that a subpopulation of sperm increases [Ca2+ ]i very rapidly during capacitation mainly due to a CatSper-mediated influx of extracellular Ca2+ .
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Affiliation(s)
- Guillermina M Luque
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Tomas Dalotto-Moreno
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - David Martín-Hidalgo
- Department of Veterinary and Animal Science, University of Massachusetts, Amherst, MA
| | - Carla Ritagliati
- Instituto de Biología Molecular y Celular de Rosario (IBR), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Lis C Puga Molina
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ana Romarowski
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Paula A Balestrini
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Liza J Schiavi-Ehrenhaus
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Nicolas Gilio
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Dario Krapf
- Instituto de Biología Molecular y Celular de Rosario (IBR), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Rosario (UNR), Rosario, Argentina
| | - Pablo E Visconti
- Department of Veterinary and Animal Science, University of Massachusetts, Amherst, MA
| | - Mariano G Buffone
- Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
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15
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Zhu J, Moawad AR, Wang CY, Li HF, Ren JY, Dai YF. Advances in in vitro production of sheep embryos. Int J Vet Sci Med 2018; 6:S15-S26. [PMID: 30761316 PMCID: PMC6161858 DOI: 10.1016/j.ijvsm.2018.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 02/07/2018] [Accepted: 02/09/2018] [Indexed: 12/18/2022] Open
Abstract
Sheep is an important livestock in the world providing meat, milk and wool for human beings. With increasing human population, the worldwide needs of production of sheep have elevated. To meet the needs, the assistant reproductive technology including ovine in vitro embryo production (ovine IVP) is urgently required to enhance the effective production of sheep in the world. To learn the status of ovine IVP, we collected some publications related to ovine IVP through PubMed and analyzed the progress in ovine IVP made in the last five years (2012-2017). We made comparisons of these data and found that the recent advances in ovine IVP has been made slowly comparable to that of ovine IVP two decades ago. Therefore, we suggested two strategies or approaches to tackle the main problems in ovine IVP and expect that the efficiency of ovine IVP could be improved significantly when the approaches would be implemented.
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Affiliation(s)
- Jie Zhu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Adel R. Moawad
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, PO BOX 12211, Giza, Egypt
| | - Chun-Yu Wang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Hui-Feng Li
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Jing-Yu Ren
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Yan-Feng Dai
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
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16
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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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17
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Relationship between Porcine Sperm Motility and Sperm Enzymatic Activity using Paper-based Devices. Sci Rep 2017; 7:46213. [PMID: 28387379 PMCID: PMC5384208 DOI: 10.1038/srep46213] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 03/13/2017] [Indexed: 01/20/2023] Open
Abstract
Mammalian sperm motility has traditionally been analyzed to determine fertility using computer-assisted semen analysis (CASA) systems. To develop low-cost and robust male fertility diagnostics, we created a paper-based MTT assay and used it to estimate motile sperm concentration. When porcine sperm motility was inhibited using sperm enzyme inhibitors for sperm enzymes related to mitochondrial activity and glycolysis, we simultaneously recorded sperm motility and enzymatic reactivity using a portable motility analysis system (iSperm) and a paper-based MTT assay, respectively. When using our paper-based MTT-assay, we calculated the area mean value signal intensity (AMV) to evaluate enzymatic reactivity. Both sperm motility and AMV decreased following treatment with iodoacetamide (IODO) and 3-bromopyruvic acid (3BP), both of which are inhibitors of glycolytic enzymes including glyceraldehyde-3-phosphate dehydrogenase (GAPDH). We found a correlation between recorded motility using iSperm and AMV from our paper-based assay (P < 0.05), suggesting that a sperm-related enzymatic reaction is involved in sperm motility. Under this protocol, MTT reduction was coupled with catalysis of GAPDH and was promoted by electron transfer from NADH. Based on this inhibitor study, sperm motility can be estimated using our paper-based MTT-assay.
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18
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Yániz JL, Vicente-Fiel S, Soler C, Recreo P, Carretero T, Bono A, Berné JM, Santolaria P. Comparison of different statistical approaches to evaluate morphometric sperm subpopulations in men. Asian J Androl 2017; 18:819-823. [PMID: 27624984 PMCID: PMC5109869 DOI: 10.4103/1008-682x.186872] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study was designed to characterize morphometric sperm subpopulations in normozoospermic men by using different statistical methods and examining their suitability to classify correctly different sperm nuclear morphologies present in human ejaculates. Ejaculates from 21 normozoospermic men were collected for the study. After semen collection and analysis, samples were prepared for morphometric determination. At least 200 spermatozoa per sample were assessed for sperm morphometry by computer-assisted sperm morphometry analysis (CASA-Morph) using fluorescence. Clustering and discriminant procedures were performed to identify sperm subpopulations from the morphometric data obtained. Clustering procedures resulted in the classification of spermatozoa into three morphometric subpopulations (large-round 30.4%, small-round 46.6%, and large-elongated 22.9%). In the second analysis, using discriminant methods, the classification was made independently of size and shape. Three morphological categories according to nuclear size (small <10.90 μm2, intermediate 10.91–13.07 μm2, and large >13.07 μm2) and four categories were defined on 400 canonical cells (100 × 4) from 10 men according to sperm nuclear shape (oval, pyriform, round, and elongated). Thereafter, the resulting classification functions were used to categorize 4200 spermatozoa from 21 men. Differences in the class distribution were observed among men from both clustering and discriminant procedures. It was concluded that the combination of CASA-Morph fluorescence-based technology with multivariate cluster or discriminant analyses provides new information on the description of different morphometric sperm subpopulations in normal individuals, and that important variations in the distribution of morphometric sperm subpopulations may exist between men, with possible functional implications.
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Affiliation(s)
- Jesús L Yániz
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Department of Animal Production and Food Sciences, Higher Polytechnic School, University of Zaragoza, Ctra. Cuarte S/N 22071 Huesca, Spain
| | - Sandra Vicente-Fiel
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Department of Animal Production and Food Sciences, Higher Polytechnic School, University of Zaragoza, Ctra. Cuarte S/N 22071 Huesca, Spain
| | - Carles Soler
- Department of Functional Biology and Physical Anthropology, University of Valencia, 46100 Burjassot, Valencia, Spain.,R+D Department, Proiser R+D, Scientific Park, University of Valencia, 46980 Paterna, Valencia, Spain
| | - Pilar Recreo
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Departament of Human Anatomy and Histology, Faculty of Health and Sport Sciences of Huesca, Plaza Universidad 3, 22002, Huesca, Spain
| | - Teresa Carretero
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Departament of Human Anatomy and Histology, Faculty of Health and Sport Sciences of Huesca, Plaza Universidad 3, 22002, Huesca, Spain
| | - Araceli Bono
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Hospital General San Jorge de Huesca, Area de Urología, Av. Martínez de Velasco, 36, 22004, Huesca, Spain
| | - José M Berné
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Hospital General San Jorge de Huesca, Area de Urología, Av. Martínez de Velasco, 36, 22004, Huesca, Spain
| | - Pilar Santolaria
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Department of Animal Production and Food Sciences, Higher Polytechnic School, University of Zaragoza, Ctra. Cuarte S/N 22071 Huesca, Spain
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19
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Santolaria P, Soler C, Recreo P, Carretero T, Bono A, Berné JM, Yániz JL. Morphometric and kinematic sperm subpopulations in split ejaculates of normozoospermic men. Asian J Androl 2017; 18:831-834. [PMID: 27624985 PMCID: PMC5109871 DOI: 10.4103/1008-682x.186874] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study was designed to analyze the sperm kinematic and morphometric subpopulations in the different fractions of the ejaculate in normozoospermic men. Ejaculates from eight normozoospermic men were collected by masturbation in three fractions after 3–5 days of sexual abstinence. Analyses of sperm motility by computer-assisted sperm analysis (CASA-Mot), and of sperm morphometry by computer-assisted sperm morphometry analysis (CASA-Morph) using fluorescence were performed. Clustering and discriminant procedures were performed to identify sperm subpopulations in the kinematic and morphometric data obtained. Clustering procedures resulted in the classification of spermatozoa into three kinematic subpopulations (slow with low ALH [35.6% of all motile spermatozoa], with circular trajectories [32.0%], and rapid with high ALH [32.4%]), and three morphometric subpopulations (large-round [33.9% of all spermatozoa], elongated [32.0%], and small [34.10%]). The distribution of kinematic sperm subpopulations was different among ejaculate fractions (P < 0.001), with higher percentages of spermatozoa exhibiting slow movements with low ALH in the second and third portions, and with a more homogeneous distribution of kinematic sperm subpopulations in the first portion. The distribution of morphometric sperm subpopulations was also different among ejaculate fractions (P < 0.001), with more elongated spermatozoa in the first, and of small spermatozoa in the third, portion. It is concluded that important variations in the distribution of kinematic and morphometric sperm subpopulations exist between ejaculate fractions, with possible functional implications.
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Affiliation(s)
- Pilar Santolaria
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Department of Animal Production and Food Sciences, University of Zaragoza, Huesca, Spain
| | - Carles Soler
- Department of Functional Biology and Physical Anthropology, University of Valencia, 46100 Burjassot, Valencia, Spain.,R+D Department, Proiser R+D, Scientific Park, University of Valencia, 46980 Paterna, Valencia, Spain
| | - Pilar Recreo
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Departament of Human Anatomy and Histology, Faculty of Health and Sport Sciences of Huesca, Plaza Universidad 3, 22002, Huesca, Spain
| | - Teresa Carretero
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Departament of Human Anatomy and Histology, Faculty of Health and Sport Sciences of Huesca, Plaza Universidad 3, 22002, Huesca, Spain
| | - Araceli Bono
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Hospital General San Jorge de Huesca, Area de Urología, Av. Martínez de Velasco, 36, 22004, Huesca, Spain
| | - José M Berné
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Hospital General San Jorge de Huesca, Area de Urología, Av. Martínez de Velasco, 36, 22004, Huesca, Spain
| | - Jesús L Yániz
- TECNOGAM research group, Environmental Sciences Institute (IUCA), Department of Animal Production and Food Sciences, University of Zaragoza, Huesca, Spain
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20
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Anel-López L, García-Álvarez O, Parrilla I, Del Olmo D, Maroto-Morales A, Fernandez-Santos MR, Ortiz JA, Soler AJ, Martínez EM, Vazquez JM, Garde JJ. Effect of sex-sorting and cryopreservation on the post-thaw sperm quality of Iberian red deer spermatozoa. Theriogenology 2016; 89:206-213. [PMID: 28043354 DOI: 10.1016/j.theriogenology.2016.11.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 10/09/2016] [Accepted: 11/12/2016] [Indexed: 02/01/2023]
Abstract
This study investigated the effect of sex-sorting and cryopreservation on post-thaw characteristics and fertility of red deer (Cervus elaphus) sperm for the first time. Semen was collected by electroejaculation from 10 mature stags during the breeding season, and each ejaculate split into four experimental groups: Bulk sorted spermatozoa, sorted but not sexed (BSS); sorted high purity X-spermatozoa (XSS); sorted high purity Y-spermatozoa (YSS); and, control non-sorted spermatozoa (NS). Following, all samples were frozen over liquid nitrogen. Two straws per stag and sample type were analyzed immediately post-thaw and following a 2-h incubation period at 37 °C. Post-thaw total motility (TM) as assessed by CASA was not different (P < 0.05) among NS, BSS and YSS sperm. For XSS, post-thaw TM was lower (39%, P < 0.05) than that for NS (54%) or BSS (50%), but similar (P > 0.05) to that of YSS (47%) sperm. The percentage of apoptotic spermatozoa as assessed by PI/YO-PRO-1 and flow cytometry analysis, was higher (17%, P ≤ 0.05) for XSS sperm than NS (12%), BSS (13%) and YSS (14%) sperm. Following incubation there were no differences (P > 0.05) in TM or percent apoptosis among treatments. Post-thaw chromatin stability calculated as the DNA fragmentation index (%DFI) was similar among treatments; following incubation %DFI increased in all except YSS, which displayed the lowest value (P < 0.05). Artificial insemination of synchronized hinds yielded 44, 52 and 62% delivery rates for YSS, NS and standard frozen-thawed sperm, respectively (P < 0.05). Notably, 93 and 55% of fawns born were males for the YSS and NS spermatozoa, respectively (P < 0.05). In summary, Y-sorted sperm displayed acceptable post-thaw sperm evaluation parameters and the expected offspring sex ratio. More studies are needed to understand the source of sperm damage that may compromise the fertility of Y-sorted red deer sperm.
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Affiliation(s)
- L Anel-López
- SaBio IREC (CSIC-UCLM-JCCM), Campus Universitario s. n., 02071 Albacete, Spain
| | - O García-Álvarez
- SaBio IREC (CSIC-UCLM-JCCM), Campus Universitario s. n., 02071 Albacete, Spain; Biomedical Center, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czechia
| | - I Parrilla
- Department of Animal Medicine and Surgery, University of Murcia, Murcia, Spain
| | - D Del Olmo
- Department of Animal Medicine and Surgery, University of Murcia, Murcia, Spain
| | - A Maroto-Morales
- SaBio IREC (CSIC-UCLM-JCCM), Campus Universitario s. n., 02071 Albacete, Spain
| | | | - J A Ortiz
- Medianilla S.L. Finca Las Lomas, Vejer de la Frontera, Cádiz, Spain
| | - A J Soler
- SaBio IREC (CSIC-UCLM-JCCM), Campus Universitario s. n., 02071 Albacete, Spain
| | - E M Martínez
- Department of Animal Medicine and Surgery, University of Murcia, Murcia, Spain
| | - J M Vazquez
- Department of Animal Medicine and Surgery, University of Murcia, Murcia, Spain
| | - J J Garde
- SaBio IREC (CSIC-UCLM-JCCM), Campus Universitario s. n., 02071 Albacete, Spain.
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21
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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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22
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Del Olmo E, García-Álvarez O, Maroto-Morales A, Ramón M, Jiménez-Rabadán P, Iniesta-Cuerda M, Anel-Lopez L, Martinez-Pastor F, Soler A, Garde J, Fernández-Santos M. Estrous sheep serum enables in vitro capacitation of ram spermatozoa while preventing caspase activation. Theriogenology 2016; 85:351-60. [DOI: 10.1016/j.theriogenology.2015.09.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 10/23/2022]
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23
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Sperm head phenotype and male fertility in ram semen. Theriogenology 2015; 84:1536-41. [DOI: 10.1016/j.theriogenology.2015.07.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 11/18/2022]
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24
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Santolaria P, Vicente-Fiel S, Palacín I, Fantova E, Blasco M, Silvestre M, Yániz J. Predictive capacity of sperm quality parameters and sperm subpopulations on field fertility after artificial insemination in sheep. Anim Reprod Sci 2015; 163:82-8. [DOI: 10.1016/j.anireprosci.2015.10.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 10/02/2015] [Accepted: 10/03/2015] [Indexed: 11/30/2022]
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25
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Effect of different media additives on capacitation of frozen–thawed ram spermatozoa as a potential replacement for estrous sheep serum. Theriogenology 2015; 84:948-55. [DOI: 10.1016/j.theriogenology.2015.05.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 05/22/2015] [Accepted: 05/29/2015] [Indexed: 11/21/2022]
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26
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Yániz J, Palacín I, Vicente-Fiel S, Sánchez-Nadal J, Santolaria P. Sperm population structure in high and low field fertility rams. Anim Reprod Sci 2015; 156:128-34. [DOI: 10.1016/j.anireprosci.2015.03.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 02/07/2015] [Accepted: 03/11/2015] [Indexed: 10/23/2022]
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27
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Ramón M, Jiménez-Rabadán P, García-Álvarez O, Maroto-Morales A, Soler AJ, Fernández-Santos MR, Pérez-Guzmán MD, Garde JJ. Understanding Sperm Heterogeneity: Biological and Practical Implications. Reprod Domest Anim 2014; 49 Suppl 4:30-6. [DOI: 10.1111/rda.12404] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 07/14/2014] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - AJ Soler
- SaBio IREC (UCLM-CSIC-JCCM); Albacete Spain
| | | | | | - JJ Garde
- SaBio IREC (UCLM-CSIC-JCCM); Albacete Spain
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28
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Gadella BM, Luna C. Cell biology and functional dynamics of the mammalian sperm surface. Theriogenology 2014; 81:74-84. [DOI: 10.1016/j.theriogenology.2013.09.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 09/07/2013] [Accepted: 09/08/2013] [Indexed: 12/11/2022]
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