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Pintus E, Ros-Santaella JL. Impact of Oxidative Stress on Male Reproduction in Domestic and Wild Animals. Antioxidants (Basel) 2021; 10:antiox10071154. [PMID: 34356386 PMCID: PMC8301082 DOI: 10.3390/antiox10071154] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/27/2021] [Accepted: 07/16/2021] [Indexed: 01/02/2023] Open
Abstract
Oxidative stress occurs when the levels of reactive oxygen species (ROS) overcome the antioxidant defenses of the organism, jeopardizing several biological functions, including reproduction. In the male reproductive system, oxidative stress not only impairs sperm fertility but also compromises offspring health and survival, inducing oxidative damage to lipids, proteins and nucleic acids. Although a clear link between oxidative stress and male fertility disorders has been demonstrated in humans and laboratory rodents, little information is available about the implications of impaired redox homeostasis in the male fertility of domestic and wild animals. Therefore, this review aims to provide an update regarding the intrinsic and extrinsic factors that are associated with oxidative stress in the male reproductive system and their impact on the reproductive performance of domestic and wild animals. The most recent strategies for palliating the detrimental effects of oxidative stress on male fertility are reviewed together with their potential economic and ecological implications in the livestock industry and biodiversity conservation.
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Caamaño JN, Tamargo C, Parrilla I, Martínez-Pastor F, Padilla L, Salman A, Fueyo C, Fernández Á, Merino MJ, Iglesias T, Hidalgo CO. Post-Thaw Sperm Quality and Functionality in the Autochthonous Pig Breed Gochu Asturcelta. Animals (Basel) 2021; 11:ani11071885. [PMID: 34202862 PMCID: PMC8300257 DOI: 10.3390/ani11071885] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Genetic resource banks were created to preserve the genetic material of endangered, rare, valuable individuals or genetically relevant breeds. Sperm cryopreservation is a practical and widespread strategy to preserve these genetic materials. This study aimed to characterize the frozen-thawed sperm of the native pig breed Gochu Asturcelta, considering the effects of boar age and season of semen collection on post-thaw sperm quality. We found that the boar age did not have a significant effect on the sperm parameters assessed. However, the season significantly affected many of these parameters (motility, viability, acrosomal status, mitochondrial activity). In general, sperm samples collected in spring and summer showed higher quality post-thawing, the lowest in winter. Our findings demonstrated that the post-thawing sperm quality of Gochu Asturcelta was in the range of results for commercial breeds, bringing a good prospect for the use of assisted reproductive technologies in this local breed. Abstract Genetic resource banks (GRB) preserve the genetic material of endangered, valuable individuals or genetically relevant breeds. Semen cryopreservation is a crucial technique to reach these goals. Thus, we aimed to assess the sperm parameters of semen doses from the native pig breed Gochu Asturcelta stored at the GRB of Principado de Asturias (GRB-PA, Gijón, Spain), focusing on intrinsic and extrinsic (boar, season) factors. Two straws per boar (n = 18, 8–71 months of age) were thawed, pooled, and assessed after 30 and 150 min at 37 °C by CASA (computer-assisted sperm analysis system; motility and kinematic parameters) and flow cytometry (viability, acrosomal status, mitochondrial activity, apoptosis, reactive oxygen species, and chromatin status). The effects of age, incubation, and season on post-thawing quality were determined using linear mixed-effects models. Parameters were on the range for commercial boar breeds, with chromatin status (SCSA: fragmentation and immaturity) being excellent. Incubation decreased sperm quality and functionality. The boar age did not have a significant effect (p > 0.05), but the between-boar variability was significant (p < 0.001). The season significantly affected many parameters (motility, kinematics, viability, acrosomal status, mitochondrial activity), especially after 150 min of incubation. In general, samples collected in spring and summer showed higher quality post-thawing, the lowest in winter. In conclusion, the sperm doses from the Gochu Asturcelta breed stored at the GRB-PA showed excellent chromatin status and acceptable characteristics after thawing. Therefore, boar and seasonal variability in this autochthonous breed could be relevant for cryobank management.
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Affiliation(s)
- José Néstor Caamaño
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), 33394 Gijon, Spain; (C.T.); (C.F.); (Á.F.); (M.J.M.); (C.O.H.)
- Correspondence: ; Tel.: +34-98-450-2010
| | - Carolina Tamargo
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), 33394 Gijon, Spain; (C.T.); (C.F.); (Á.F.); (M.J.M.); (C.O.H.)
| | - Inmaculada Parrilla
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, 30071 Murcia, Spain; (I.P.); (L.P.)
| | - Felipe Martínez-Pastor
- INDEGSAL, Universidad de León, 24071 León, Spain; (F.M.-P.); (A.S.)
- Molecular Biology (Cell Biology), Universidad de León, 24071 León, Spain
| | - Lorena Padilla
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, 30071 Murcia, Spain; (I.P.); (L.P.)
| | - Amer Salman
- INDEGSAL, Universidad de León, 24071 León, Spain; (F.M.-P.); (A.S.)
| | - Carmen Fueyo
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), 33394 Gijon, Spain; (C.T.); (C.F.); (Á.F.); (M.J.M.); (C.O.H.)
| | - Ángel Fernández
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), 33394 Gijon, Spain; (C.T.); (C.F.); (Á.F.); (M.J.M.); (C.O.H.)
| | - María José Merino
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), 33394 Gijon, Spain; (C.T.); (C.F.); (Á.F.); (M.J.M.); (C.O.H.)
| | - Tania Iglesias
- Unidad de Consultoría Estadística, Universidad de Oviedo, 33203 Gijón, Spain;
| | - Carlos Olegario Hidalgo
- Department of Animal Selection and Reproduction, Regional Service for Agrifood Research and Development (SERIDA), 33394 Gijon, Spain; (C.T.); (C.F.); (Á.F.); (M.J.M.); (C.O.H.)
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Moraes CR, Moraes LE, Blawut B, Benej M, Papandreou I, Denko NC, Coutinho da Silva M. Effect of glucose concentration and cryopreservation on mitochondrial functions of bull spermatozoa and relationship with sire conception rate. Anim Reprod Sci 2021; 230:106779. [PMID: 34048998 DOI: 10.1016/j.anireprosci.2021.106779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/29/2022]
Abstract
Mitochondrial function is essential for sperm viability, not only from a sperm metabolism perspective, but also for improvement of sperm storage in liquid and frozen states. Bull sperm have notable metabolic variability with energy production for motility and subsequently for fertilizing capacity resulting from both glycolysis and oxidative phosphorylation. The objective of this study was to determine mitochondrial function of sperm using high-throughput Seahorse Analyzer technology in fresh semen and subsequent to freezing-thawing when there was incubation in media commonly used for sperm storage (relatively large glucose concentration) and female tract (relatively small glucose concentration). Additionally, there were determinations whether there were differences in values for fertility variables by regressing sire conception rate on values for mitochondrial variables when there was evaluation of semen from bulls with varying fertility. Media with larger concentrations of glucose inhibited mitochondrial function in fresh sperm, as indicated by less maximal oxygen consumption, spare respiratory capacity and coupling efficiency when compared to sperm in the media containing less glucose. Furthermore, there was greater (P < 0.05) mitochondrial function in cryopreserved-thawed compared to fresh samples with there being no effect of incubation media. These results indicate that mitochondrial damage from cryopreservation cannot be simply overcome post-thawing with glucose supplementation of bull semen incubation media. The increase in mitochondrial function is likely due to "non-productive" oxygen consumption to maintain the mitochondrial proton gradient. Furthermore, there was a negative association of mitochondrial proton leakage with sire conception rate indicating this could be a potential biomarker of bull fertility.
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Affiliation(s)
- Christa R Moraes
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, 43210, United States.
| | - Luis E Moraes
- Department of Animal Sciences, College of Food, Agricultural, and Environmental Sciences, The Ohio State University, Columbus, OH, 43210, United States.
| | - Bryan Blawut
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, 43210, United States.
| | - Martin Benej
- Department of Radiation Oncology, Ohio State University Comprehensive Cancer Center and Wexner Medical Center, Columbus, OH, 43210, United States.
| | - Ioanna Papandreou
- Department of Radiation Oncology, Ohio State University Comprehensive Cancer Center and Wexner Medical Center, Columbus, OH, 43210, United States.
| | - Nicholas C Denko
- Department of Radiation Oncology, Ohio State University Comprehensive Cancer Center and Wexner Medical Center, Columbus, OH, 43210, United States.
| | - Marco Coutinho da Silva
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, 43210, United States.
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Zhang H, Cao X, Tang M, Zhong G, Si Y, Li H, Zhu F, Liao Q, Li L, Zhao J, Feng J, Li S, Wang C, Kaulich M, Wang F, Chen L, Li L, Xia Z, Liang T, Lu H, Feng XH, Zhao B. A subcellular map of the human kinome. eLife 2021; 10:64943. [PMID: 33988507 PMCID: PMC8175086 DOI: 10.7554/elife.64943] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 05/13/2021] [Indexed: 12/11/2022] Open
Abstract
The human kinome comprises 538 kinases playing essential functions by catalyzing protein phosphorylation. Annotation of subcellular distribution of the kinome greatly facilitates investigation of normal and disease mechanisms. Here, we present Kinome Atlas (KA), an image-based map of the kinome annotated to 10 cellular compartments. 456 epitope-tagged kinases, representing 85% of the human kinome, were expressed in HeLa cells and imaged by immunofluorescent microscopy under a similar condition. KA revealed kinase family-enriched subcellular localizations and discovered a collection of new kinase localizations at mitochondria, plasma membrane, extracellular space, and other structures. Furthermore, KA demonstrated the role of liquid-liquid phase separation in formation of kinase condensates. Identification of MOK as a mitochondrial kinase revealed its function in cristae dynamics, respiration, and oxidative stress response. Although limited by possible mislocalization due to overexpression or epitope tagging, this subcellular map of the kinome can be used to refine regulatory mechanisms involving protein phosphorylation.
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Affiliation(s)
- Haitao Zhang
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Xiaolei Cao
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Mei Tang
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Guoxuan Zhong
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yuan Si
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Haidong Li
- College of Biology and Pharmacy, Yulin Normal University, Yulin, China
| | - Feifeng Zhu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Qinghua Liao
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Liuju Li
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing, China
| | - Jianhui Zhao
- Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jia Feng
- Department of Ophthalmology, The Children's Hospital, School of Medicine, and National Clinical Research Center for Child Health, Zhejiang University, Hangzhou, China
| | - Shuaifeng Li
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Chenliang Wang
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Manuel Kaulich
- Institute of Biochemistry II, Goethe University Frankfurt-Medical Faculty, University Hospital, Frankfurt, Germany
| | - Fangwei Wang
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Liangyi Chen
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking University, Beijing, China
| | - Li Li
- Institute of Aging Research, Hangzhou Normal University, Hangzhou, China
| | - Zongping Xia
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Tingbo Liang
- Cancer Center, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Huasong Lu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Xin-Hua Feng
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China
| | - Bin Zhao
- The MOE Key Laboratory of Biosystems Homeostasis & Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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55
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Yao L, Zhao D, Yu H, Zheng L, Xu Y, Wen H, Dai X, Wang S. Oxidative stress-related mitochondrial dysfunction as a possible reason for obese male infertility. NUTR CLIN METAB 2021. [DOI: 10.1016/j.nupar.2020.02.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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56
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Zhou Y, Yao W, Zhang D, Yu Y, Chen S, Lu H, Jiang W, Jiang C. Effectiveness of acupuncture for asthenozoospermia: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e25711. [PMID: 33907155 PMCID: PMC8084068 DOI: 10.1097/md.0000000000025711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND According to the World Health Organization, the global incidence of infertility is about 15%, and more than 50% of infertility cases are caused by male infertility. Asthenozoospermia is caused by male fertility decline and male infertility. Due to work pressure, environmental pollution, sexual diseases, and other factors, the number of patients with asthenozoospermia has increased in recent years. It has been confirmed that acupuncture has a certain effect on patients with asthenozoospermia. Acupuncture and moxibustion can be an adjuvant treatment plan for the treatment of asthenozoospermia in addition to drug treatment. METHODS Randomized controlled trials of acupuncture for asthenozoospermia will be searched in the relevant database, including PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), Wanfang Database, Chinese Biomedical Literature Database (CBM), and Chinese Scientific Journal Database (VIP database). The studies of electronic searches will be exported to EndNote V.9.1 software. We will run meta-analyses using the Review Manager (RevMan) V.5.3 software. Any disagreements will be solved in consultation with a third reviewer. RESULTS Our study aims to explore the efficacy of acupuncture for asthenozoospermia and to provide up-to-date evidence for clinical of asthenozoospermia. CONCLUSION This study will perform a comprehensive systematic review and meta-analysis on the efficacy of acupuncture for asthenozoospermia, making up for the lack of relevant evidence of the clinical use of acupuncture. INPLASY REGISTRATION NUMBER INPLASY 202140032.
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57
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Turnell BR, Kumpitsch L, Reinhardt K. Production and scavenging of reactive oxygen species both affect reproductive success in male and female Drosophila melanogaster. Biogerontology 2021; 22:379-396. [PMID: 33903991 PMCID: PMC8266701 DOI: 10.1007/s10522-021-09922-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/30/2021] [Indexed: 10/27/2022]
Abstract
Sperm aging is accelerated by the buildup of reactive oxygen species (ROS), which cause oxidative damage to various cellular components. Aging can be slowed by limiting the production of mitochondrial ROS and by increasing the production of antioxidants, both of which can be generated in the sperm cell itself or in the surrounding somatic tissues of the male and female reproductive tracts. However, few studies have compared the separate contributions of ROS production and ROS scavenging to sperm aging, or to cellular aging in general. We measured reproductive fitness in two lines of Drosophila melanogaster genetically engineered to (1) produce fewer ROS via expression of alternative oxidase (AOX), an alternative respiratory pathway; or (2) scavenge fewer ROS due to a loss-of-function mutation in the antioxidant gene dj-1β. Wild-type females mated to AOX males had increased fecundity and longer fertility durations, consistent with slower aging in AOX sperm. Contrary to expectations, fitness was not reduced in wild-type females mated to dj-1β males. Fecundity and fertility duration were increased in AOX and decreased in dj-1β females, indicating that female ROS levels may affect aging rates in stored sperm and/or eggs. Finally, we found evidence that accelerated aging in dj-1β sperm may have selected for more frequent mating. Our results help to clarify the relative roles of ROS production and ROS scavenging in the male and female reproductive systems.
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Affiliation(s)
- Biz R Turnell
- Applied Zoology, Faculty Biology, Technische Universität Dresden, 01069, Dresden, Germany.
| | - Luisa Kumpitsch
- Applied Zoology, Faculty Biology, Technische Universität Dresden, 01069, Dresden, Germany
| | - Klaus Reinhardt
- Applied Zoology, Faculty Biology, Technische Universität Dresden, 01069, Dresden, Germany
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58
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Ortiz-Rodriguez JM, Nerozzi C, Bucci D, Mislei B, Mari G, Tamanini C, Peña FJ, Spinaci M, Galeati G. The inhibition of spermatic cystine/glutamate antiporter xCT (SLC7A11) influences the ability of cryopreserved stallion sperm to bind to heterologous zonae pellucidae. Theriogenology 2021; 167:24-31. [PMID: 33743505 DOI: 10.1016/j.theriogenology.2021.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 01/26/2021] [Accepted: 03/05/2021] [Indexed: 12/16/2022]
Abstract
Sperm are redox-regulated cells, and deregulation of their redox status is considered to affect male fertility and to reduce their fertilizing ability following biotechnological procedures, such as cryopreservation. Cystine (CysS), after incorporation in sperm via SLC7A11 antiporter, has been demonstrated to increase intracellular GSH content, the most important non enzymatic antioxidant. This study was aimed at investigating the role of SLC7A11 antiporter on frozen-thawed stallion sperm ability to respond to in vitro capacitating environment after post-thaw incubation with CysS and/or Sulfasalazine (SS), a specific inhibitor of SLC7A11 antiporter. Viability, motility, immunolocalization of tyrosine phosphorylated proteins and the ability to bind to heterologous zonae pellucidae were evaluated. Thawed sperm from seven stallions (2 ejaculates/stallion) was washed and resuspended in Tyrodes media; each thawed ejaculate was divided in Control (CTR) and 3 samples supplemented with: 0.5 mM Cystine (CysS), 500 μM Sulfasalazine (SS) and 0.5 mM CysS + 500 μM SS (CysS + SS). After 1 h of incubation at 37 °C, samples were washed twice, resuspended in capacitating BWW medium and incubated at 38 °C under 5% CO2. After 30 and 60 min, sperm motility, viability and tyrosine phosphorylated protein immunolocalization, used as capacitation status index, were evaluated. After 30 min of capacitation, 4 × 105 sperm were co-incubated with denuded pig oocytes in capacitation medium for 30 min for the heterologous binding assay. None of the sperm parameters studied (motility, viability and tyrosine phosphorylation) showed any difference respective to control. The number of sperm bound per oocyte (mean ± SEM) tended to increase in CysS group (44.0 ± 12.3) respect CTR (40.8 ± 10.8) while decreased in SS group (32.4 ± 7.8) (p < 0.01). Moreover, CysS + SS group showed a lower binding rate (32.0 ± 10.0) compared to CysS (p < 0.001). Our results suggest that CysS supplementation of thawed stallion sperm can influence their ability to bind to heterologous zona pellucidae as the inhibition of CysS incorporation by SLC7A11 reduced the number of sperm bound per oocyte. This effect does not seem to be ascribed to a modification of sperm motility, membrane integrity and tyrosine phosphorylation.
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Affiliation(s)
- J M Ortiz-Rodriguez
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Caceres, Spain
| | - C Nerozzi
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | - D Bucci
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | - B Mislei
- National Institute of Artificial Insemination (AUB-INFA), University of Bologna, Bologna, Italy
| | - G Mari
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy; National Institute of Artificial Insemination (AUB-INFA), University of Bologna, Bologna, Italy
| | - C Tamanini
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | - F J Peña
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Caceres, Spain
| | - M Spinaci
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy.
| | - G Galeati
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
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59
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Du C, Zheng X, Jiang J, Meng J, Wu Y, Gao X, Zhu J. The effects of extenders, cryoprotectants and conditions in two-step cooling method on Varicorhinus barbatulus sperm. Cryobiology 2021; 100:133-141. [PMID: 33640316 DOI: 10.1016/j.cryobiol.2021.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/02/2021] [Accepted: 02/22/2021] [Indexed: 11/25/2022]
Abstract
In this study, we developed an optimal cryopreservation procedure for Varicorhinus barbatulus sperm. To this end, we optimized (1) the types and dilution ratios of extenders; (2) types and final concentration of cryoprotectants; and (3) freezing conditions, including equilibration time, height above the surface of liquid nitrogen (LN), and the cooling times in the two-step cooling method. The optimum result was obtained when the sperm was diluted at a 1:9 ratio in D-17 with 10% methanol, equilibrated at 4 °C for 10 min, held at 7 cm above LN for 2 min, and finally stored in LN. After storage for 12 h in LN, the sperm was thawed in a water bath at 40 °C for 6s, the post-thaw sperm motility was 66.10 ± 7.12%, while the corresponding rate for fresh sperm was 87.08 ± 2.38%. Using computer-assisted sperm analysis, we found a significant decrease in the motility parameters of post-thaw sperm, especially the parameters related to velocity. To evaluate the effects of cryopreservation on the structural integrity of sperm, transmission electron microscopy and scanning electron microscopy were employed, which showed the defects in frozen sperm, including: abnormal heads, damaged plasma membranes, broken tails, and the disappearance of the mitochondrial internal crest. In addition, we determined the mitochondrial membrane potential to assess the functional integrity of frozen sperm. Our results showed a decrease in the mitochondrial function of frozen sperm. This procedure could be used alongside cryopreservation of V. barbatulus and supports its commercial-scale production and species conservation.
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Affiliation(s)
- Chen Du
- Key Laboratory of Applied Marine Biotechnology By the Ministry of Education, Ningbo University, Ningbo, Zhejiang, 315211, People's Republic of China.
| | - Xuebin Zheng
- Key Laboratory of Applied Marine Biotechnology By the Ministry of Education, Ningbo University, Ningbo, Zhejiang, 315211, People's Republic of China.
| | - Jianhu Jiang
- Zhejiang Institute of Freshwater Fisheries, Huzhou, Zhejiang, 313001, China.
| | - Jiajie Meng
- Key Laboratory of Applied Marine Biotechnology By the Ministry of Education, Ningbo University, Ningbo, Zhejiang, 315211, People's Republic of China.
| | - Yuanjie Wu
- Key Laboratory of Applied Marine Biotechnology By the Ministry of Education, Ningbo University, Ningbo, Zhejiang, 315211, People's Republic of China.
| | - Xinming Gao
- Key Laboratory of Applied Marine Biotechnology By the Ministry of Education, Ningbo University, Ningbo, Zhejiang, 315211, People's Republic of China.
| | - Junquan Zhu
- Key Laboratory of Applied Marine Biotechnology By the Ministry of Education, Ningbo University, Ningbo, Zhejiang, 315211, People's Republic of China.
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Gualtieri R, Kalthur G, Barbato V, Di Nardo M, Adiga SK, Talevi R. Mitochondrial Dysfunction and Oxidative Stress Caused by Cryopreservation in Reproductive Cells. Antioxidants (Basel) 2021; 10:antiox10030337. [PMID: 33668300 PMCID: PMC7996228 DOI: 10.3390/antiox10030337] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 02/07/2023] Open
Abstract
Mitochondria, fundamental organelles in cell metabolism, and ATP synthesis are responsible for generating reactive oxygen species (ROS), calcium homeostasis, and cell death. Mitochondria produce most ROS, and when levels exceed the antioxidant defenses, oxidative stress (OS) is generated. These changes may eventually impair the electron transport chain, resulting in decreased ATP synthesis, increased ROS production, altered mitochondrial membrane permeability, and disruption of calcium homeostasis. Mitochondria play a key role in the gamete competence to facilitate normal embryo development. However, iatrogenic factors in assisted reproductive technologies (ART) may affect their functional competence, leading to an abnormal reproductive outcome. Cryopreservation, a fundamental technology in ART, may compromise mitochondrial function leading to elevated intracellular OS that decreases sperm and oocytes' competence and the dynamics of fertilization and embryo development. This article aims to review the role played by mitochondria and ROS in sperm and oocyte function and the close, biunivocal relationships between mitochondrial damage and ROS generation during cryopreservation of gametes and gonadal tissues in different species. Based on current literature, we propose tentative hypothesis of mechanisms involved in cryopreservation-associated mitochondrial dysfunction in gametes, and discuss the role played by antioxidants and other agents to retain the competence of cryopreserved reproductive cells and tissues.
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Affiliation(s)
- Roberto Gualtieri
- Department of Biology, University of Naples “Federico II”, Complesso Universitario di Monte S. Angelo, Via Cinthia, 80126 Naples, Italy; (V.B.); (M.D.N.); (R.T.)
- Correspondence:
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576 104, India; (G.K.); (S.K.A.)
| | - Vincenza Barbato
- Department of Biology, University of Naples “Federico II”, Complesso Universitario di Monte S. Angelo, Via Cinthia, 80126 Naples, Italy; (V.B.); (M.D.N.); (R.T.)
| | - Maddalena Di Nardo
- Department of Biology, University of Naples “Federico II”, Complesso Universitario di Monte S. Angelo, Via Cinthia, 80126 Naples, Italy; (V.B.); (M.D.N.); (R.T.)
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576 104, India; (G.K.); (S.K.A.)
- Centre for Fertility Preservation, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576 104, India
| | - Riccardo Talevi
- Department of Biology, University of Naples “Federico II”, Complesso Universitario di Monte S. Angelo, Via Cinthia, 80126 Naples, Italy; (V.B.); (M.D.N.); (R.T.)
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Zheng M, Chen X, Cui Y, Li W, Dai H, Yue Q, Zhang H, Zheng Y, Guo X, Zhu H. TULP2, a New RNA-Binding Protein, Is Required for Mouse Spermatid Differentiation and Male Fertility. Front Cell Dev Biol 2021; 9:623738. [PMID: 33763418 PMCID: PMC7982829 DOI: 10.3389/fcell.2021.623738] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/27/2021] [Indexed: 11/13/2022] Open
Abstract
Spermatogenesis requires a large number of proteins to be properly expressed at certain stages, during which post-transcriptional regulation plays an important role. RNA-binding proteins (RBPs) are key players in post-transcriptional regulation, but only a few RBPs have been recognized and preliminary explored their function in spermatogenesis at present. Here we identified a new RBP tubby-like protein 2 (TULP2) and found three potential deleterious missense mutations of Tulp2 gene in dyszoospermia patients. Therefore, we explored the function and mechanism of TULP2 in male reproduction. TULP2 was specifically expressed in the testis and localized to spermatids. Studies on Tulp2 knockout mice demonstrated that the loss of TULP2 led to male sterility; on the one hand, increases in elongated spermatid apoptosis and restricted spermatid release resulted in a decreased sperm count; on the other hand, the abnormal differentiation of spermatids induced defective sperm tail structures and reduced ATP contents, influencing sperm motility. Transcriptome sequencing of mouse testis revealed the potential target molecular network of TULP2, which played its role in spermatogenesis by regulating specific transcripts related to the cytoskeleton, apoptosis, RNA metabolism and biosynthesis, and energy metabolism. We also explored the potential regulator of TULP2 protein function by using immunoprecipitation and mass spectrometry analysis, indicating that TUPL2 might be recognized by CCT8 and correctly folded by the CCT complex to play a role in spermiogenesis. Our results demonstrated the important role of TULP2 in spermatid differentiation and male fertility, which could provide an effective target for the clinical diagnosis and treatment of patients with oligo-astheno-teratozoospermia, and enrich the biological theory of the role of RBPs in male reproduction.
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Affiliation(s)
- Meimei Zheng
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China.,Reproductive Medicine Center of No. 960 Hospital of PLA, Jinan, China
| | - Xu Chen
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Yiqiang Cui
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Wen Li
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Haiqian Dai
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Qiuling Yue
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Hao Zhang
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Ying Zheng
- Department of Histology and Embryology, School of Medicine, Yangzhou University, Yangzhou, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
| | - Hui Zhu
- State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China
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Boguenet M, Bouet PE, Spiers A, Reynier P, May-Panloup P. Mitochondria: their role in spermatozoa and in male infertility. Hum Reprod Update 2021; 27:697-719. [PMID: 33555313 DOI: 10.1093/humupd/dmab001] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/22/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The best-known role of spermatozoa is to fertilize the oocyte and to transmit the paternal genome to offspring. These highly specialized cells have a unique structure consisting of all the elements absolutely necessary to each stage of fertilization and to embryonic development. Mature spermatozoa are made up of a head with the nucleus, a neck, and a flagellum that allows motility and that contains a midpiece with a mitochondrial helix. Mitochondria are central to cellular energy production but they also have various other functions. Although mitochondria are recognized as essential to spermatozoa, their exact pathophysiological role and their functioning are complex. Available literature relative to mitochondria in spermatozoa is dense and contradictory in some cases. Furthermore, mitochondria are only indirectly involved in cytoplasmic heredity as their DNA, the paternal mitochondrial DNA, is not transmitted to descendants. OBJECTIVE AND RATIONAL This review aims to summarize available literature on mitochondria in spermatozoa, and, in particular, that with respect to humans, with the perspective of better understanding the anomalies that could be implicated in male infertility. SEARCH METHODS PubMed was used to search the MEDLINE database for peer-reviewed original articles and reviews pertaining to human spermatozoa and mitochondria. Searches were performed using keywords belonging to three groups: 'mitochondria' or 'mitochondrial DNA', 'spermatozoa' or 'sperm' and 'reactive oxygen species' or 'calcium' or 'apoptosis' or signaling pathways'. These keywords were combined with other relevant search phrases. References from these articles were used to obtain additional articles. OUTCOMES Mitochondria are central to the metabolism of spermatozoa and they are implicated in energy production, redox equilibrium and calcium regulation, as well as apoptotic pathways, all of which are necessary for flagellar motility, capacitation, acrosome reaction and gametic fusion. In numerous cases, alterations in one of the aforementioned functions could be linked to a decline in sperm quality and/or infertility. The link between the mitochondrial genome and the quality of spermatozoa appears to be more complex. Although the quantity of mtDNA, and the existence of large-scale deletions therein, are inversely correlated to sperm quality, the effects of mutations seem to be heterogeneous and particularly related to their pathogenicity. WIDER IMPLICATIONS The importance of the role of mitochondria in reproduction, and particularly in gamete quality, has recently emerged following numerous publications. Better understanding of male infertility is of great interest in the current context where a significant decline in sperm quality has been observed.
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Affiliation(s)
- Magalie Boguenet
- MITOVASC Institute, CNRS 6015, INSERM U1083, Angers University, Angers 49000, France
| | - Pierre-Emmanuel Bouet
- Department of Reproductive Medicine, Angers University Hospital, Angers 49000, France
| | - Andrew Spiers
- Department of Reproductive Medicine, Angers University Hospital, Angers 49000, France
| | - Pascal Reynier
- MITOVASC Institute, CNRS 6015, INSERM U1083, Angers University, Angers 49000, France.,Department of Biochemistry and Genetics, Angers University Hospital, Angers 49000, France
| | - Pascale May-Panloup
- MITOVASC Institute, CNRS 6015, INSERM U1083, Angers University, Angers 49000, France.,Reproductive Biology Unit, Angers University Hospital, Angers 49000, France
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63
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Abd Elrahman MM, El Makawy AI, Hassanane MS, Alam SS, Hassan NHA, Amer MK. Assessment of correlation between asthenozoospermia and mitochondrial DNA mutations in Egyptian infertile men. J Genet Eng Biotechnol 2021; 19:11. [PMID: 33459881 PMCID: PMC7813956 DOI: 10.1186/s43141-020-00111-0] [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: 10/05/2020] [Accepted: 12/25/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Asthenozoospermia is a chief reason for male seminal pathologies with an impression of around 19% of infertile patients. Spermatozoa mitochondrial DNA variations seem to link with low sperm motility. The objective of the study was to assess the relation between mitochondrial mutations and male sterility, especially in asthenozoospermia. The patient semen samples were investigated by studying the sperm physical characters; motility, viability, and morphological parameters were then classified into normozoospermia and asthenozoospermia. In addition, the level of malondialdehyde (MDA) as a bio-indicator of lipid peroxidation, seminal fructose, and total antioxidant capacity (TAC) were estimated. For molecular analysis, DNA from the semen samples was extracted using a DNA extraction kit. ND1, ND2, and ATPase6 genes were amplified by using a specific primer. After the purification procedure, each PCR product was sequenced to identify the single nucleotide polymorphisms (SNPs) in selected genes. RESULTS A significant negative correlation between seminal plasma malondialdehyde levels and sperm motility was detected. Meanwhile, TAC analysis revealed significantly lower activity (p ≤ 0.05) in the sample of asthenozoospermic than in normozoospermic men. As regards the seminal plasma fructose, there was no significant difference in the fructose level of normozoospermia and asthenozoospermia cases. At the molecular level, 31 diverse nucleotide substitutions were recognized in mitochondrial DNA. Only ten (10) mutations led to amino acid transformation: four have deleterious effects, four are benign, and the other two have conflicting effectiveness. CONCLUSIONS This study is the first in Egypt that is concerned with studying the relationship between the mitochondrial DNA mutations in human spermatozoa of asthenozoospermic patients and fertility. The results displayed scientific indications evidenced that there is an association between mitochondrial mutations and male infertility.
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Affiliation(s)
- Mohamed M Abd Elrahman
- Cell Biology Dept. , Division of Genetic Engineering and Biotechnology Research, National Research Centre, 33 El Bohouth St., Dokki, P.O.12622, Giza, Egypt
| | - Aida I El Makawy
- Cell Biology Dept. , Division of Genetic Engineering and Biotechnology Research, National Research Centre, 33 El Bohouth St., Dokki, P.O.12622, Giza, Egypt.
| | - Mohamed S Hassanane
- Cell Biology Dept. , Division of Genetic Engineering and Biotechnology Research, National Research Centre, 33 El Bohouth St., Dokki, P.O.12622, Giza, Egypt
| | - Sally S Alam
- Cell Biology Dept. , Division of Genetic Engineering and Biotechnology Research, National Research Centre, 33 El Bohouth St., Dokki, P.O.12622, Giza, Egypt
| | - Nagwa H A Hassan
- Zoology Dept., Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Medhat K Amer
- Surgery Andrology and infertility Department, Faculty of Medicine, Cairo University, Cairo, Egypt
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Paul N, Kumaresan A, Das Gupta M, Nag P, Guvvala PR, Kuntareddi C, Sharma A, Selvaraju S, Datta TK. Transcriptomic Profiling of Buffalo Spermatozoa Reveals Dysregulation of Functionally Relevant mRNAs in Low-Fertile Bulls. Front Vet Sci 2021; 7:609518. [PMID: 33506000 PMCID: PMC7829312 DOI: 10.3389/fvets.2020.609518] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/13/2020] [Indexed: 12/12/2022] Open
Abstract
Although, it is known that spermatozoa harbor a variety of RNAs that may influence embryonic development, little is understood about sperm transcriptomic differences in relation to fertility, especially in buffaloes. In the present study, we compared the differences in sperm functional attributes and transcriptomic profile between high- and low-fertile buffalo bulls. Sperm membrane and acrosomal integrity were lower (P < 0.05), while protamine deficiency and lipid peroxidation were higher (P < 0.05) in low- compared to high-fertile bulls. Transcriptomic analysis using mRNA microarray technology detected a total of 51,282 transcripts in buffalo spermatozoa, of which 4,050 transcripts were differentially expressed, and 709 transcripts were found to be significantly dysregulated (P < 0.05 and fold change >1) between high- and low-fertile bulls. Majority of the dysregulated transcripts were related to binding activity, transcription, translation, and metabolic processes with primary localization in the cell nucleus, nucleoplasm, and in cytosol. Pathways related to MAPK signaling, ribosome pathway, and oxidative phosphorylation were dysregulated in low-fertile bull spermatozoa. Using bioinformatics analysis, we observed that several genes related to sperm functional attributes were significantly downregulated in low-fertile bull spermatozoa. Validation of the results of microarray analysis was carried out using real-time qPCR expression analysis of selected genes (YBX1, ORAI3, and TFAP2C). The relative expression of these genes followed the same trend in both the techniques. Collectively, this is the first study to report the transcriptomic profile of buffalo spermatozoa and to demonstrate the dysregulation of functionally relevant transcripts in low-fertile bull spermatozoa. The results of the present study open up new avenues for understanding the etiology for poor fertility in buffalo bulls and to identify fertility biomarkers.
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Affiliation(s)
- Nilendu Paul
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Arumugam Kumaresan
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Mohua Das Gupta
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Pradeep Nag
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Pushpa Rani Guvvala
- Reproductive Physiology Laboratory, ICAR - National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Channareddi Kuntareddi
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Ankur Sharma
- Theriogenology Laboratory, Veterinary Gynaecology and Obstetrics, Southern Regional Station of ICAR - National Dairy Research Institute, Bengaluru, India
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, ICAR - National Institute of Animal Nutrition and Physiology, Bengaluru, India
| | - Tirtha Kumar Datta
- Animal Genomics Laboratory, ICAR - National Dairy Research Institute, Karnal, India
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Tsao Y, Yang C, Wen Y, Chang T, Matsuura K, Chen Y, Cheng C. Point-of-care semen analysis of patients with infertility via smartphone and colorimetric paper-based diagnostic device. Bioeng Transl Med 2021; 6:e10176. [PMID: 33532582 PMCID: PMC7823130 DOI: 10.1002/btm2.10176] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 12/28/2022] Open
Abstract
Male infertility affects millions of males worldwide and is rising in prevalence due to social and environmental conditions. However, men often feel too embarrassed to receive a semen analysis in the hospital due to social stigmas. To overcome this problem, we developed a 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide test strip to distinguish semen samples with low total motile sperm concentration from those with normal motile sperm concentration. This is a point-of-care colorimetric semen analytical method with a one-step, inexpensive, equipment-free evaluation process, and adequate accuracy validated in a 42-sample clinical trial. In this study, results were evaluated visually and with a smartphone application. Using visual observation methods, the area under the curve (AUC) was 0.71 (95% of confidence interval = 0.55-0.86; p = 0.021), sensitivity was 41%, specificity was 95%, positive predictive value was 90%, negative predictive value (NPV) was 59.4%, and accuracy was 67%. Using a smartphone recording and analytical system, AUC was 0.766 (95% of confidence interval = 0.612-0.92; p = 0.003), sensitivity was 96%, specificity was 65%, PPV was 75%, NPV was 92.9%, and accuracy was 80.9%. This work demonstrated a screening tool that could elevate semen analysis to the level of routine healthcare and provide for private, in-home self-assessment.
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Affiliation(s)
- Yu‐Ting Tsao
- Institute of Biomedical EngineeringNational Tsing Hua UniversityHsinchuTaiwan
- Department of EducationChang Gung Memorial Hospital Linkou BranchTaoyuanTaiwan
| | - Chung‐Yao Yang
- Department of Research and DevelopmentHygeia Touch Inc.TaipeiTaiwan
| | - Yun‐Chiao Wen
- Department of EducationChang Gung Memorial Hospital Linkou BranchTaoyuanTaiwan
- School of Traditional Chinese MedicineChang Gung University College of MedicineTaoyuanTaiwan
| | - Ting‐Chang Chang
- Department of Obstetrics and GynecologyChang Gung Memorial Hospital Linkou BranchTaoyuanTaiwan
| | - Koji Matsuura
- Department of Biomedical Engineering, Faculty of EngineeringOkayama University of ScienceOkayamaJapan
| | - Yu Chen
- Department of UrologyChang Gung Memorial Hospital and Chang Gung UniversityTaoyuanTaiwan
| | - Chao‐Min Cheng
- Institute of Biomedical EngineeringNational Tsing Hua UniversityHsinchuTaiwan
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Tetrazolium Salt WST-8 as a Novel and Reliable Chromogenic Indicator for the Assessment of Boar Semen Quality. Animals (Basel) 2020; 10:ani10122293. [PMID: 33291566 PMCID: PMC7761879 DOI: 10.3390/ani10122293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 12/21/2022] Open
Abstract
Simple Summary Good semen quality is an essential factor for breeding success when artificial insemination is performed. However, semen quality can not fully be evaluated by merely sperm viability or motility. Standard semen quality evaluation requires costly automated computer-assisted sperm analysis or specific and laborious labeling procedures before particular parameters can be assessed by flow cytometry. In the current study, we examined whether the 2-[2-methoxy-4-nitrophenyl]-3-[4-nitrophenyl]-5-[2,4-disulfophenyl]-2H-tetrazolium (WST-8) assay, which is widely used in the cell biology field, can be applied to evaluate sperm viability, and moreover, whether the WST-8 reduction rate can correlate with multiple sperm parameters that are related to sperm quality. We demonstrated in this study that the WST-8 assay can be used as a rapid, affordable, and reliable method for the prediction of semen quality in boar. Abstract A tetrazolium salt, 2-[2-methoxy-4-nitrophenyl]-3-[4-nitrophenyl]-5-[2,4-disulfophenyl]-2H-tetrazolium (WST-8), has been used widely to determine cell viability; however, its application in the field of reproduction is still limited due to this assay merely providing information regarding cell viability. The aim of this study was to correlate the WST-8 reduction rate with various sperm quality-related parameters (i.e., sperm viability, motility, progressive motility, acrosome integrity and mitochondria integrity) in order to provide a rapid, reliable and affordable assessment for boar semen quality evaluation. Using different ratios of active/damaged sperm cells, we first validated our sample preparations by standard flow cytometry and computer-assisted sperm analysis. Further analyses demonstrated that the most efficient experimental condition for obtaining a reliable prediction model was when sperm concentration reached 300 × 106 cells/mL with the semen/cell-counting kit-8 (CCK-8®) ratio of 200/10 and incubated time of 20 min. Under this set up, the WST-8 reduction rate (differences on optic density reading value, ΔOD at 450 nm) and sperm parameters were highly correlated (p < 0.01) for all sperm parameters evaluated. In the case of limited semen samples, a minimal semen concentration at 150 × 106 cells/mL with the semen/CCK-8® ratio of 200/20 and incubation time for 30 min could still provide reliable prediction of sperm parameters using the WST-8 assay. Our data provide strong evidence for the first time that the WST-8 assay could be used to evaluate boar semen quality with great potential to be applied to different mammalian species.
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Hernández-Avilés C, Ramírez-Agámez L, Love CC, Friedrich M, Pearson M, Kelley DE, Beckham AMN, Teague SR, LaCaze KA, Brinsko SP, Varner DD. The effects of metabolic substrates glucose, pyruvate, and lactate added to a skim milk-based semen extender for cooled storage of stallion sperm. Theriogenology 2020; 161:83-97. [PMID: 33302166 DOI: 10.1016/j.theriogenology.2020.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/25/2020] [Accepted: 11/25/2020] [Indexed: 12/31/2022]
Abstract
Under in vitro conditions, stallion sperm might preferentially use energy substrates that primarily undergo mitochondrial metabolism. The present study sought to determine the effects of glucose, pyruvate, lactate, or their combinations on the quality of stallion sperm subjected to cooled storage at different temperatures, when using a skim milk-based semen extender. In Experiment 1, no substrate (Control), glucose (40 mM; Glu-40), pyruvate (2 mM, 19.8 mM; Pyr-2, Pyr-19), lactate (2 mM, 19.8 mM; Lac-2, Lac-19, respectively), or their combinations (G/P/L-2 or G/P/L-19, respectively) were added to a milk-based extender and their effects were determined on motion characteristics, viability/acrosomal intactness (VAI), lipid peroxidation status (VLPP), and DNA integrity (COMPα-t) of sperm incubated for 1 h at 37 °C, or sperm stored for 24 h at either 10 or 20 °C. At any period and temperature tested, Glu-40, G/P/L-2, and G/P-L-19 resulted in similar motion characteristics (P > 0.05) but were higher than that of other treatment groups (P < 0.05). Mean VAI was highest in Glu-40 (P < 0.05). Mean VLPP was highest in G/P/L-2 and G/P/L-19 groups (P < 0.05), and mean COMPα-t was lowest in Control, Glu-40, G/P/L-2 and G/P/L-19 groups (P < 0.05). All measures of sperm quality were higher in semen stored at 10 °C than 20 °C (P < 0.05). In Experiment 2, increasing concentrations of either pyruvate or lactate (Pyr-40, Lac-40 or Pyr-80, Lac-80) were added to the extender as energy substrates and compared to glucose (40 mM), following storage for 72 h at either 10 or 20 °C. Groups Glu-40 and Pyr-40 yielded similar sperm motion characteristics and VAI, while VLPP and COMPα-t were reduced in these treatment groups, as compared to Pyr-80, Lac-40, and Lac-80 (P < 0.05). All measures of sperm quality were higher in semen stored at 10 °C vs 20 °C (P < 0.05). This study demonstrates that at storage temperatures of 10 or 20 °C, stallion sperm quality is optimized by the presence of glucose in a skim milk-based semen extender. The addition of substrates that readily support oxidative phosphorylation (i.e., pyruvate or lactate) did not improve the quality of stallion sperm over that of glucose alone and resulted in deleterious effects on sperm quality over time. These effects appeared to be associated with oxidative stress. Use of pyruvate (40 mM) as an alternative energy substrate to glucose generally yielded similar results to that of glucose when sperm were stored at 10 °C only.
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Affiliation(s)
- Camilo Hernández-Avilés
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.
| | - Luisa Ramírez-Agámez
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Charles C Love
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Macy Friedrich
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Mariah Pearson
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Dale E Kelley
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Anne M N Beckham
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Sheila R Teague
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Katrina A LaCaze
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Steven P Brinsko
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Dickson D Varner
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
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Kumar N, Singh AK. The anatomy, movement, and functions of human sperm tail: an evolving mystery. Biol Reprod 2020; 104:508-520. [PMID: 33238303 DOI: 10.1093/biolre/ioaa213] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 12/15/2022] Open
Abstract
Sperms have attracted attention of many researchers since it was discovered by Antonie van Leeuwenhoek in 1677. Though a small cell, its every part has complex structure and different function to play in carrying life. Sperm tail is most complicated structure with more than 1000 proteins involved in its functioning. With the advent of three-dimensional microscopes, many studies are undergoing to understand exact mechanism of sperm tail movement. Most recent studies have shown that sperms move by spinning rather than swimming. Each subunit of tail, including axonemal, peri-axonemal structures, plays essential roles in sperm motility, capacitation, hyperactivation, fertilization. Furthermore, over 2300 genes are involved in spermatogenesis. A number of genetic mutations have been linked with abnormal sperm flagellar development leading to motility defects and male infertility. It was found that 6% of male infertility cases are related to genetic causes, and 4% of couples undergoing intracytoplasmic sperm injection for male subfertility have chromosomal abnormalities. Hence, an understanding of sperm tail development and genes associated with its normal functioning can help in better diagnosis of male infertility and its management. There is still a lot that needs to be discovered about genes, proteins contributing to normal human sperm tail development, movement, and role in male fertility. Sperm tail has complex anatomy, with surrounding axoneme having 9 + 2 microtubules arrangement along its entire length and peri-axonemal structures that contribute in sperm motility and fertilization. In future sperm tail-associated genes, proteins and subunits can be used as markers of male fertility.
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Affiliation(s)
- Naina Kumar
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, Guntur, Andhra Pradesh 522503, India
| | - Amit Kant Singh
- Department of Physiology, U.P. University of Medical Sciences, Etawah 206130, Uttar Pradesh, India
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Novel Low-Voltage Electro-Ejaculation Approach for Sperm Collection from Zoo Captive Lanyu Miniature Pigs ( Sus barbatus sumatranus). Animals (Basel) 2020; 10:ani10101825. [PMID: 33036420 PMCID: PMC7600073 DOI: 10.3390/ani10101825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 09/30/2020] [Accepted: 10/03/2020] [Indexed: 11/17/2022] Open
Abstract
Semen collection can be achieved via hand penile massage or rectal stimulation using electro-ejaculation methods. Traditional electro-ejaculation procedure applied relatively high voltage of 3-15 volts with a maximum current of 900 mA. However, these manipulations often result in great stress and discomforts in animals. In this study, we showed low-voltage electro-ejaculation procedure using 2-3 volts with a maximum current of 500 mA can efficiently stimulated ejaculations in zoo captive lanyu miniature pigs with a high success rate of 81.3% (13/16). Besides normal semen properties (semen volume, pH, sperm concentration), we demonstrated that low-voltage electro-ejaculation caused less stress in the animals, and sperm cells obtained via low-voltage electro-ejaculation exhibit low abnormality (10.3%), high viability (84.3%), motility (75.7%), progressive motility (63.7%), and acrosome integrity (88%). However, cryopreservation protocol used in the current study requires further optimization, as sperm mitochondrial function was partially compromised during freezing procedures. Taken together, we demonstrated in this study that a low-voltage electro-ejaculation approach can be used to obtain quality sperm cells from zoo captive lanyu miniature pig with less physical stress during electro-ejaculation procedure.
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70
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Davies K. Biological basis of child health 7: growth, development and the reproductive system. Nurs Child Young People 2020; 33:e1308. [PMID: 33016664 DOI: 10.7748/ncyp.2020.e1308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2020] [Indexed: 11/09/2022]
Abstract
This article is the seventh in a series on the biological basis of child health. It describes early developmental milestones, stages of growth, puberty and the development of the reproductive system. It also outlines the methods used to assess growth and development, and describes conditions that affect growth and development in infants, children and young people. Understanding childhood growth and development is crucial for children's nurses, who need to be able to identify potential deviations from the norm, since these often reveal underlying conditions that require treatment.
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Affiliation(s)
- Kate Davies
- London South Bank University and honorary research fellow in paediatric endocrinology, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, England
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71
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Efficiency of Tris-Based Extender Steridyl for Semen Cryopreservation in Stallions. Animals (Basel) 2020; 10:ani10101801. [PMID: 33020383 PMCID: PMC7601834 DOI: 10.3390/ani10101801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/26/2020] [Accepted: 10/02/2020] [Indexed: 01/02/2023] Open
Abstract
Simple Summary The cryopreservation and long-term storage of semen is one of the methods for accelerated improvement of the genetic qualities of animals. However, horse breeders prefer to use fresh or chilled semen, as the fertilizing capacity of frozen equine semen is much lower. It is important to find extenders, or a combination of extenders, that will improve semen survival after freezing. It is also important that the extender can be easily and simply prepared for use. Steridyl is a concentrate to which you just need to add sterilized water. This extender was developed for ruminants. In this study we tested Steridyl for freezing stallion semen. The motility, morphology, energy metabolism, DNA damage, and fertility of sperm frozen in Steridyl were evaluated. As a result, Steridyl was shown to be a good extender for equine semen freezing. Abstract The fertilizing ability of stallion sperm after freezing is lower than in other species. The search for the optimal extender, combination of extenders, and the freezing protocol is relevant. The aim of this study was to compare lactose-chelate-citrate-yolk (LCCY) extender, usually used in Russia, and Steridyl® (Minitube) for freezing sperm of stallions. Steridyl is a concentrated extender medium for freezing ruminant semen. It already contains sterilized egg yolk. Semen was collected from nine stallions, aged from 7 to 12 years old. The total and progressive motility of sperm frozen in Steridyl was significantly higher than in semen frozen in LCCY. The number of spermatozoa with normal morphology in samples frozen in LCCY was 60.4 ± 1.72%, and with Steridyl, 72.4 ± 2.10% (p < 0.01). Semen frozen in Steridyl showed good stimulation of respiration by 2.4-DNP, which indicates that oxidative phosphorylation was retained after freezing–thawing. No differences among the extenders were seen with the DNA integrity of spermatozoa. Six out of ten (60%) mares were pregnant after artificial insemination (AI) by LCCY frozen semen, and 9/12 (75%) by Steridyl frozen semen. No differences among extenders were seen in pregnancy rate. In conclusion, Steridyl was proven to be a good diluent for freezing stallion semen, even though it was developed for ruminants.
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72
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Lin SW, Shen CF, Cheng CM. Potential Trends of Point-of-Care Diagnostics-The Next Generation of the Laboratory Diagnosis. Diagnostics (Basel) 2020; 10:E774. [PMID: 33007954 PMCID: PMC7599442 DOI: 10.3390/diagnostics10100774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 11/16/2022] Open
Abstract
With the current worldwide outbreak of COVID-19, developing rapid, effective, and convenient detection tools has become imperative [...].
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Affiliation(s)
- Sheng-Wen Lin
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;
| | - Ching-Fen Shen
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan;
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73
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Nätt D, Öst A. Male reproductive health and intergenerational metabolic responses from a small RNA perspective. J Intern Med 2020; 288:305-320. [PMID: 32415866 DOI: 10.1111/joim.13096] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/10/2020] [Accepted: 04/23/2020] [Indexed: 02/06/2023]
Abstract
The world has recently experienced a decline in male reproductive (e.g. sperm counts and motility) and metabolic (e.g. obesity and diabetes) health. Accumulated evidence from animal models also shows that the metabolic health of the father may influence the metabolic health in his offspring. Vectors for such paternal intergenerational metabolic responses (IGMRs) involve small noncoding RNAs (sncRNAs) that often increase in spermatozoa during the last days of maturation in the epididymis. We and others have shown that the metabolic state - depending on factors such as diet, obesity and physical exercise - may affect sperm quality and sperm sncRNA. Together, this suggests that there are overlapping aetiologies between the male metabolic syndrome, male factor infertility and intergenerational responses. In this review, we present a theoretical framework for an overlap of these aetiologies by exploring the advances in our understanding of the roles of sncRNA in spermatogenesis and offspring development. A special focus will lie on novel findings about tRNA-derived small RNA (tsRNA), rRNA-derived small RNA (rsRNA) and small mitochondrial RNA (mitoRNA), and their emerging roles in intergenerational metabolic and reproductive health.
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Affiliation(s)
- D Nätt
- From the, Department of Clinical and Experimental Medicine, Linköping University, Linkoping, Sweden
| | - A Öst
- From the, Department of Clinical and Experimental Medicine, Linköping University, Linkoping, Sweden
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74
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Effects of reduced glutathione on ram sperm parameters, antioxidant status, mitochondrial activity and the abundance of hexose transporters during liquid storage at 5 ℃. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2020.106139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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75
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Sperm Motility of Mice under Simulated Microgravity and Hypergravity. Int J Mol Sci 2020; 21:ijms21145054. [PMID: 32709012 PMCID: PMC7404272 DOI: 10.3390/ijms21145054] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/25/2020] [Accepted: 07/14/2020] [Indexed: 01/03/2023] Open
Abstract
For deep space exploration, reproductive health must be maintained to preserve the species. However, the mechanisms underlying the effect of changes in gravity on male germ cells remain poorly understood. The aim of this study was to determine the effect of simulated micro- and hypergravity on mouse sperm motility and the mechanisms of this change. For 1, 3 and 6 h, mouse sperm samples isolated from the caudal epididymis were subjected to simulated microgravity using a random position machine and 2g hypergravity using a centrifuge. The experimental samples were compared with static and dynamic controls. The sperm motility and the percentage of motile sperm were determined using microscopy and video analysis, cell respiration was determined by polarography, the protein content was assessed by Western blotting and the mRNA levels were determined using qRT-PCR. The results indicated that hypergravity conditions led to more significant changes than simulated microgravity conditions: after 1 h, the speed of sperm movement decreased, and after 3 h, the number of motile cells began to decrease. Under the microgravity model, the speed of movement did not change, but the motile spermatozoa decreased after 6 h of exposure. These changes are likely associated with a change in the structure of the microtubule cytoskeleton, and changes in the energy supply are an adaptive reaction to changes in sperm motility.
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76
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Krzyściak W, Papież M, Bąk E, Morava E, Krzyściak P, Ligęzka A, Gniadek A, Vyhouskaya P, Janeczko J. Sperm Antioxidant Biomarkers and Their Correlation with Clinical Condition and Lifestyle with Regard to Male Reproductive Potential. J Clin Med 2020; 9:jcm9061785. [PMID: 32521761 PMCID: PMC7355971 DOI: 10.3390/jcm9061785] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/30/2020] [Accepted: 06/04/2020] [Indexed: 11/16/2022] Open
Abstract
Measurement of sperm oxidative-antioxidant indicators is widely used in the assessment and detection of biochemical causes of male infertility The main purpose of this study was to identify biomarkers that assist in diagnostics and monitoring of male reproductive potential. We performed the assessment of oxidative-antioxidant malondialdehyde (MDA), glutathione (GSH), and total redox antioxidant potential (TRAP) indicators in seminal plasma, seminogram, clinical condition, and lifestyle of people with reproductive problems. The combined assessment of GSH and TRAP as potential biomarkers of male infertility in semen plasma was characterized by the highest total sensitivity and specificity. Furthermore, we provide evidence that male reproductive potential is significantly correlated with basic sperm parameters, sperm cell membrane integrity, their morphology, lifestyle, eating habits, occupation, and mental health. Our results provide evidence on the importance of oxidative stress and defense against free radicals in diagnosing and monitoring men with infertility that are consistent with previously conducted research. We provide an alternative approach on the possibility of interpreting the combination of the biomarkers that can bring benefits to a multi-threaded approach to the diagnosis and treatment of male infertility.
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Affiliation(s)
- Wirginia Krzyściak
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland; (A.L.); (P.V.)
- Correspondence: ; Tel.: +48-504-872-580
| | - Monika Papież
- Department of Cytobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland;
| | - Ewelina Bąk
- PARENS Infertility Clinic, 29 Listopada 155C, 31-406 Krakow, Poland; (E.B.); (J.J.)
| | - Eva Morava
- Department of Clinical Genomics, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA;
| | - Paweł Krzyściak
- Department of Mycology, Jagiellonian University Medical College, Czysta 18, 31-121 Krakow, Poland;
| | - Anna Ligęzka
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland; (A.L.); (P.V.)
- Department of Clinical Genomics, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA;
| | - Agnieszka Gniadek
- Department of Nursing Management and Epidemiology Nursing, Faculty of Health Sciences, Jagiellonian University Medical College, Kopernika 25, 31-501 Krakow, Poland;
| | - Palina Vyhouskaya
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland; (A.L.); (P.V.)
| | - Jarosław Janeczko
- PARENS Infertility Clinic, 29 Listopada 155C, 31-406 Krakow, Poland; (E.B.); (J.J.)
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77
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Barbăroșie C, Agarwal A, Henkel R. Diagnostic value of advanced semen analysis in evaluation of male infertility. Andrologia 2020; 53:e13625. [PMID: 32458468 DOI: 10.1111/and.13625] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022] Open
Abstract
Conventional semen analysis is the standard of care to initially evaluate the fertility status of a male patient. However, it has some limitations and among these are failure to correctly identify the aetiology underlying fertility problems, intra- and inter-observer variability and incomplete information about sperm function. Considering these drawbacks, advanced semen tests have been developed to assess male infertility, including sperm function tests, oxidative stress (OS) and sperm DNA fragmentation (SDF) tests. This review illustrates the commonly utilised sperm function techniques, along with the assays used to assess SDF and OS and their diagnostic value.
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Affiliation(s)
- Cătălina Barbăroșie
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ralf Henkel
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.,Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
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Martín-Cano FE, Gaitskell-Phillips G, Ortiz-Rodríguez JM, Silva-Rodríguez A, Román Á, Rojo-Domínguez P, Alonso-Rodríguez E, Tapia JA, Gil MC, Ortega-Ferrusola C, Peña FJ. Proteomic profiling of stallion spermatozoa suggests changes in sperm metabolism and compromised redox regulation after cryopreservation. J Proteomics 2020; 221:103765. [PMID: 32247875 DOI: 10.1016/j.jprot.2020.103765] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/09/2023]
Abstract
Proteomic technologies allow the detection of thousands of proteins at the same time, being a powerful technique to reveal molecular regulatory mechanisms in spermatozoa and also sperm damage linked to low fertility or specific biotechnologies. Modifications induced by the cryopreservation in the stallion sperm proteome were studied using UHPLC/MS/MS. Ejaculates from fertile stallions were collected and split in two subsamples, one was investigated as fresh (control) samples, and the other aliquot frozen and thawed using standard procedures and investigated as frozen thawed subsamples. UHPLC/MS/MS was used to study the sperm proteome under these two distinct conditions and bioinformatic enrichment analysis conducted. Gene Ontology (GO) and pathway enrichment analysis were performed revealing dramatic changes as consequence of cryopreservation. The terms oxidative phosphorylation, mitochondrial ATP synthesis coupled electron transport and electron transport chain were significantly enriched in fresh samples (P = 5.50 × 10-12, 4.26 × 10-8 and 7.26 × 10-8, respectively), while were not significantly enriched in frozen thawed samples (P = 1). The GO terms oxidation reduction process and oxidoreductase activity were enriched in fresh samples and the enrichment was reduced in frozen thawed samples (1.40 × 10-8, 1.69 × 10-6 versus 1.13 × 10-2 and 2-86 × 10-2 respectively). Reactome pathways (using human orthologs) significantly enriched in fresh sperm were TCA cycle and respiratory electron transport (P = 1.867 × 10-8), Respiratory electron transport ATP synthesis by chemiosmosis coupling (P = 2.124 × 10-5), Citric acid cycle (TCA cycle)(P = 8.395 × 10-4) Pyruvate metabolism and TCA cycle (P = 3.380 × 10-3), Respiratory electron transport (P = 2.764 × 10-2) and Beta oxidation of laurolyl-CoA to decanoyl CoA-CoA (P = 1.854 × 10-2) none of these pathways were enriched in thawed samples (P = 1). We have provided the first detailed study on how the cryopreservation process impacts the stallion sperm proteome. Our findings identify the metabolic proteome and redoxome as the two key groups of proteins affected by the procedure. SIGNIFICANCE: In the present manuscript we investigated how the cryopreservation of stallion spermatozoa impacts the proteome of these cells. This procedure is routinely used in horse breeding and has a major impact in the industry, facilitating the trade of genetic material. This is still a suboptimal biotechnology, with numerous unresolved problems. The limited knowledge of the molecular insults occurring during cryopreservation is behind these problems. The application and development of proteomics to the spermatozoa, allow to obtain valuable information of the specific mechanisms affected by the procedure. In this paper, we report that cryopreservation impacts numerous proteins involved in metabolism regulation (mainly mitochondrial proteins involved in the TCA cycle, and oxidative phosphorylation) and also affects proteins with oxidoreductase activity. Moreover, specific proteins involved in the sperm-oocyte interaction are also affected by the procedure. The information gathered in this study, opens interesting questions and offer new lines of research for the improvement of the technology focusing the targets here identified, and the specific steps in the procedure (cooling, toxicity of antioxidants etc.) to be modified to reduce the damage.
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Affiliation(s)
- Francisco E Martín-Cano
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Gemma Gaitskell-Phillips
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - José M Ortiz-Rodríguez
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Antonio Silva-Rodríguez
- Facility of Innovation and Analysis in Animal Source Foodstuffs, University of Extremadura, Cáceres, Spain
| | - Ángel Román
- Department of Biochemistry and Molecular Biology, University of Extremadura, Badajoz, Spain
| | | | | | - José A Tapia
- Department of Physiology, University of Extremadura, Cáceres, Spain
| | - Maria C Gil
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - C Ortega-Ferrusola
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain
| | - Fernando J Peña
- Laboratory of Equine Reproduction and Equine Spermatology, Veterinary Teaching Hospital, University of Extremadura, Cáceres, Spain.
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79
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Mislei B, Bucci D, Malama E, Bollwein H, Mari G. Seasonal changes in ROS concentrations and sperm quality in unfrozen and frozen-thawed stallion semen. Theriogenology 2020; 144:89-97. [DOI: 10.1016/j.theriogenology.2019.12.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/18/2019] [Accepted: 12/23/2019] [Indexed: 11/30/2022]
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80
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Cordero-Martínez J, Flores-Alonso JC, Aguirre-Alvarado C, Oviedo N, Alcántara-Farfán V, García-Pérez CA, Bermúdez-Ruiz KF, Jiménez-Gutiérrez GE, Rodríguez-Páez L. Influence of Echeveria gibbiflora DC aqueous crude extract on mouse sperm energy metabolism and calcium-dependent channels. JOURNAL OF ETHNOPHARMACOLOGY 2020; 248:112321. [PMID: 31655146 DOI: 10.1016/j.jep.2019.112321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 09/27/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGY RELEVANCE In traditional Mexican medicine, Echeveria gibbiflora DC has been used as a vaginal post-coital rinse to prevent pregnancy. The aqueous crude extract (OBACE) induces sperm immobilization/agglutination and a hypotonic-like effect, likely attributed to the high concentration of calcium bis-(hydrogen-1-malate) hexahydrate [Ca2+ (C4H5O5)2•6H2O]. Likewise, OBACE impedes the increase of [Ca2+]i during capacitation. AIM OF THE STUDY Evaluate the effect of OBACE on sperm energy metabolism and the underlying mechanism of action on sperm-specific channel. MATERIAL AND METHODS In vitro, we quantified the mouse sperm immobilization effect and the antifertility potential of OBACE. The energetic metabolism status was also evaluated by assessing the ATP levels, general mitochondrial activity, mitochondrial membrane potential, and enzymatic activity of three key enzymes of energy metabolism. Furthermore, the effect of the ion efflux of Cl- and K+, as well as the pHi, were investigated in order to elucidate which channel is suitable to perform an in silico study. RESULTS Total and progressive motility notably decreased, as did fertility rates. ATP levels, mitochondrial activity and membrane potential were reduced. Furthermore, the activities of the three enzymes decreased. Neither Cl- or K+ channels activities were affected at low concentrations of OBACE; nevertheless, pHi did not alkalinize. Finally, an in silico analysis was performed between the Catsper channel and calcium bis-(hydrogen-1-malate) hexahydrate, which showed a possible blockade of this sperm cation channel. CONCLUSION The results were useful to elucidate the effect of OBACE and to propose it as a future male contraceptive.
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Affiliation(s)
- Joaquín Cordero-Martínez
- Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico
| | - Juan Carlos Flores-Alonso
- Laboratorio de Biología de la Reproducción, Centro de Investigación Biomédica de Oriente, Hospital General de Zona #5, Metepec, Instituto Mexicano del Seguro Social, Metepec, Puebla, Mexico
| | - Charmina Aguirre-Alvarado
- Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico; Unidad de Investigación Médica en Inmunología e Infectología, Centro Médico Nacional, La Raza, IMSS, Ciudad de México, Mexico
| | - Norma Oviedo
- Unidad de Investigación Médica en Inmunología e Infectología, Centro Médico Nacional, La Raza, IMSS, Ciudad de México, Mexico
| | - Verónica Alcántara-Farfán
- Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico
| | | | - Karla Fernanda Bermúdez-Ruiz
- Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico
| | - Guadalupe Elizabeth Jiménez-Gutiérrez
- Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico
| | - Lorena Rodríguez-Páez
- Laboratorio de Bioquímica Farmacológica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico.
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Barbagallo F, La Vignera S, Cannarella R, Aversa A, Calogero AE, Condorelli RA. Evaluation of Sperm Mitochondrial Function: A Key Organelle for Sperm Motility. J Clin Med 2020; 9:jcm9020363. [PMID: 32013061 PMCID: PMC7073944 DOI: 10.3390/jcm9020363] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 01/09/2023] Open
Abstract
Introduction: The role of nutraceuticals in the treatment of male infertility, especially in the “idiopathic form”, remains the subject of significant debate. Many antioxidants improve sperm motility but the exact mechanism by which they act is still unclear. Although several studies have shown a correlation between sperm motility and mitochondrial function, the effects of antioxidant therapy on mitochondrial membrane potential (MMP) are poorly studied. The first aim of this review was to evaluate the efficacy of antioxidants on mitochondrial function and, consequently, on sperm motility in male infertile patients. Material and Methods: we performed a systematic search of all randomized controlled and uncontrolled studies available in the literature that reported sperm motility and MMP at baseline and after antioxidant administration in-vivo and in-vitro in patients with idiopathic asthenozoospermia. Pubmed, MEDLINE, Cochrane, Academic One Files, Google Scholar and Scopus databases were used. Results: Unexpectedly, among 353 articles retrieved, only one study met our inclusion criteria and showed a significant effect of myoinositol on both MMP and sperm motility. We then summarized the main knowledge on anatomy and metabolism of sperm mitochondria, techniques allowing to assess sperm mitochondria function and its relationships with low sperm motility. Finally, we paid special attention to the effect of antioxidant/prokinetic molecules for the treatment of asthenozoospermia. Conclusions: This is the first systematic review that has attempted to evaluate the effects of antioxidants on MMP and sperm motility. Although results are not conclusive due to the dearth of studies, the close relationship between mitochondria and sperm motility is clear. The investigation of this correlation could provide valuable information to be exploited in clinical practice for the treatment of male infertility.
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Affiliation(s)
- Federica Barbagallo
- Department of Clinical and Experimental Medicine, Policlinico “G. Rodolico”, University of Catania, 95123 Catania, Italy; (F.B.); (R.C.); (A.E.C.); (R.A.C.)
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, Policlinico “G. Rodolico”, University of Catania, 95123 Catania, Italy; (F.B.); (R.C.); (A.E.C.); (R.A.C.)
- Correspondence:
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, Policlinico “G. Rodolico”, University of Catania, 95123 Catania, Italy; (F.B.); (R.C.); (A.E.C.); (R.A.C.)
| | - Antonio Aversa
- Department of Experimental and Clinical Medicine, “Magna Graecia” University, 88100 Catanzaro, Italy;
| | - Aldo E. Calogero
- Department of Clinical and Experimental Medicine, Policlinico “G. Rodolico”, University of Catania, 95123 Catania, Italy; (F.B.); (R.C.); (A.E.C.); (R.A.C.)
| | - Rosita A. Condorelli
- Department of Clinical and Experimental Medicine, Policlinico “G. Rodolico”, University of Catania, 95123 Catania, Italy; (F.B.); (R.C.); (A.E.C.); (R.A.C.)
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Centrifugation Force and Time Alter CASA Parameters and Oxidative Status of Cryopreserved Stallion Sperm. BIOLOGY 2020; 9:biology9020022. [PMID: 32012799 PMCID: PMC7168157 DOI: 10.3390/biology9020022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/23/2020] [Accepted: 01/25/2020] [Indexed: 12/31/2022]
Abstract
Conventional sperm selection techniques used in ARTs rely on centrifugation steps. To date, the different studies reported on the effects of centrifugation on stallion sperm motility provided contrasting results and do not include effects on mitochondrial functionality and different oxidative parameters. The effects of different centrifugation protocols (300 ×g for 5', 300 ×g for 10', 1500 ×g for 5' and 1500 ×g for 10' vs no centrifugation) on motility and oxidative status in cryopreserved stallion sperm, were analyzed. After centrifugation, almost all motility parameters were significantly altered, as observed by computer-assisted sperm analysis. A polarographic assay of oxygen consumption showed a progressive decrease in mitochondria respiration from the gentlest to the strongest protocol. By laser scanning confocal microscopy, significant reduction of mitochondrial membrane potential, at any tested protocol, and time-dependent effects, at the same centrifugal force, were found. Increased DNA fragmentation index at any tested protocol and time-dependent effects at the same centrifugal force were found, whereas increased protein carbonylation was observed only at the strongest centrifugal force. These results provide more comprehensive understandings on centrifugation-induced effects on cryopreserved stallion sperm and suggest that, even at a weak force for a short time, centrifugation impairs different aspects of equine sperm metabolism and functionality.
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83
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Nesci S, Spinaci M, Galeati G, Nerozzi C, Pagliarani A, Algieri C, Tamanini C, Bucci D. Sperm function and mitochondrial activity: An insight on boar sperm metabolism. Theriogenology 2020; 144:82-88. [PMID: 31927418 DOI: 10.1016/j.theriogenology.2020.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/06/2019] [Accepted: 01/04/2020] [Indexed: 10/25/2022]
Abstract
In this study boar sperm mitochondrial activity was studied and deepened in order to delineate the main metabolic strategies used by boar sperm to obtain energy and to link them to sperm function. Boar spermatozoa were collected, diluted at 30 × 106 spz/mL and incubated for 1 h with: Rotenone (ROT), complex I inhibitor, Dimethyl-malonate (DMM), complex II inhibitor, antimycin A (ANTI), complex III inhibitor, oligomycin (OLIGO), ATP synthase inhibitor, Carbonyl cyanide m-chlorophenyl hydrazone (CCCP), uncoupling agent, 2-deoxy-glucose (2DG), glucose agonist, and Dimethyl sulphoxide (DMSO) as control vehicle. Viability and mitochondrial membrane potential (Sybr14/PI/JC1 staining) and sperm motility (using CASA system) were assayed after incubation. ROT, ANTI, OLIGO and CCCP significantly reduced total and progressive motility as well as cell velocities; ANTI and CCCP depressed mitochondrial membrane potential but did not affect cell viability. Cluster analysis of kinematic parameters showed some interesting features of sperm subpopulations: ANTI and CCCP caused a shift in sperm subpopulation towards "slow non progressive" cells, OLIGO and ROT caused a shift towards "average" and "slow non progressive" cells, while DMM and 2DG increased the "fast progressive" cells subpopulation. Sperm mitochondrial respiration and substrate oxidation, assayed polographically and spectrofluorimetrically, respectively pointed out a high ATP turnover and a low spare respiratory capacity, mainly linked to the NADH-O2 oxidase activity. Therefore, boar spermatozoa heavily rely on mitochondrial oxidative phosphorylation, and especially on Complex I activity, to produce ATP and fuel motility.
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Affiliation(s)
- Salvatore Nesci
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Marcella Spinaci
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Giovanna Galeati
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Chiara Nerozzi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Alessandra Pagliarani
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Cristina Algieri
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Carlo Tamanini
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy
| | - Diego Bucci
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, Via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, BO, Italy.
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84
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Bettinazzi S, Nadarajah S, Dalpé A, Milani L, Blier PU, Breton S. Linking paternally inherited mtDNA variants and sperm performance. Philos Trans R Soc Lond B Biol Sci 2019; 375:20190177. [PMID: 31787040 DOI: 10.1098/rstb.2019.0177] [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] [Indexed: 12/20/2022] Open
Abstract
Providing robust links between mitochondrial genotype and phenotype is of major importance given that mitochondrial DNA (mtDNA) variants can affect reproductive success. Because of the strict maternal inheritance (SMI) of mitochondria in animals, haplotypes that negatively affect male fertility can become fixed in populations. This phenomenon is known as 'mother's curse'. Doubly uniparental inheritance (DUI) of mitochondria is a stable exception in bivalves, which entails two mtDNA lineages that evolve independently and are transmitted separately through oocytes and sperm. This makes the DUI mitochondrial lineages subject to different sex-specific selective sieves during mtDNA evolution, thus DUI is a unique model to evaluate how direct selection on sperm mitochondria could contribute to male reproductive fitness. In this study, we tested the impact of mtDNA variants on sperm performance and bioenergetics in DUI and SMI species. Analyses also involved measures of sperm performance following inhibition of main energy pathways and sperm response to oocyte presence. Compared to SMI, DUI sperm exhibited (i) low speed and linearity, (ii) a strict OXPHOS-dependent strategy of energy production, and (iii) a partial metabolic shift towards fermentation following egg detection. Discussion embraces the adaptive value of mtDNA variation and suggests a link between male-energetic adaptation, fertilization success and paternal mitochondria preservation. This article is part of the theme issue 'Linking the mitochondrial genotype to phenotype: a complex endeavour'.
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Affiliation(s)
- Stefano Bettinazzi
- Département des Sciences Biologiques, Université de Montréal, Montréal, Québec, Canada H2V 2S9
| | - Sugahendni Nadarajah
- Département des Sciences Biologiques, Université de Montréal, Montréal, Québec, Canada H2V 2S9.,Département Sciences de l'Univers, Environnement, Ecologie, Sorbonne Université, 75005 Paris, France
| | - Andréanne Dalpé
- Département des Sciences Biologiques, Université de Montréal, Montréal, Québec, Canada H2V 2S9
| | - Liliana Milani
- Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Università di Bologna, Bologna 40126, Italia
| | - Pierre U Blier
- Département de Biologie, Université du Québec à Rimouski, Rimouski, Québec, Canada G5L 3A1
| | - Sophie Breton
- Département des Sciences Biologiques, Université de Montréal, Montréal, Québec, Canada H2V 2S9
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85
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Hiendleder S, Bottema CDK, Brunner RM. Nuclear mitochondrial pseudogenes in the cattle genome. Anim Genet 2019; 51:148-149. [PMID: 31639225 DOI: 10.1111/age.12869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Stefan Hiendleder
- Davies Research Centre, School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, SA, 5371, Australia.,Robinson Research Institute, The University of Adelaide, 55 King William St, North Adelaide, SA, 5006, Australia
| | - Cynthia D K Bottema
- Davies Research Centre, School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, SA, 5371, Australia
| | - Ronald M Brunner
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Genome Biology, W.-Stahl-Allee 2, Dummerstorf, 18196, Germany
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86
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Del Prete C, Stout T, Montagnaro S, Pagnini U, Uccello M, Florio P, Ciani F, Tafuri S, Palumbo V, Pasolini MP, Cocchia N, Henning H. Combined addition of superoxide dismutase, catalase and glutathione peroxidase improves quality of cooled stored stallion semen. Anim Reprod Sci 2019; 210:106195. [PMID: 31635777 DOI: 10.1016/j.anireprosci.2019.106195] [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: 11/09/2018] [Revised: 09/16/2019] [Accepted: 09/21/2019] [Indexed: 01/02/2023]
Abstract
During cold storage stallion spermatozoa experience undergo oxidative stress, which can impair sperm function and fertilizing capacity. Superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) are the main endogenous enzymatic antioxidants in stallion seminal plasma, and counteract reactive oxygen species. Semen dilution reduces the endogenous antioxidant concentrations. The aim of this study was to investigate whether addition of 15 IU/mL each of SOD, CAT, and GPX to diluted stallion semen would ameliorate a reactive oxygen-mediated decrease in semen quality during 72 h of storage at 5 °C. Ejaculates (n = 7) were divided in two aliquots and diluted in INRA 96 without (control) or with addition of antioxidants. Semen analysis was performed at the time of dilution and every 24 h during chilled storage. Antioxidant supplementation completely inhibited the storage-dependent increase in activated caspase 3 (P < 0.05). Concomitantly, the antioxidant-supplemented samples had a greater percentage of viable, motile and rapidly moving sperm than control samples after 72 h storage (P < 0.05). The DNA damage, as evaluated by TUNEL assay and SCSA, increased with storage time (P < 0.05). Antioxidant supplementation did not prevent, but did significantly reduce the increase in DNA strand breakage. The results indicate part of the intrinsic apoptotic pathway leading to effector caspase activation was inhibited, although an activation of molecules with endonuclease activity still occurred. In conclusion, adding equal concentrations of SOD, CAT and GPX to a semen extender suppressed caspase-3 activation and improved preservation of stallion sperm motility and viability during 72 h of storage at 5 °C.
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Affiliation(s)
- Chiara Del Prete
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy.
| | - Tom Stout
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CM, Utrecht, the Netherlands
| | - Serena Montagnaro
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Ugo Pagnini
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Melania Uccello
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Napoli, Italy
| | - Pasquale Florio
- Department of Biology, University of Naples Federico II, Via Cinthia, 80126, Napoli, Italy
| | - Francesca Ciani
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Simona Tafuri
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Veronica Palumbo
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Maria Pia Pasolini
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Natascia Cocchia
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Via Federico Delpino, 1, 80137, Napoli, Italy
| | - Heiko Henning
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CM, Utrecht, the Netherlands
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87
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Meyers S, Bulkeley E, Foutouhi A. Sperm mitochondrial regulation in motility and fertility in horses. Reprod Domest Anim 2019; 54 Suppl 3:22-28. [DOI: 10.1111/rda.13461] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/27/2019] [Indexed: 01/04/2023]
Affiliation(s)
- Stuart Meyers
- Department of Anatomy, Physiology, and Cell Biology; School of Veterinary Medicine; University of California; Davis California
| | - Evelyn Bulkeley
- Department of Anatomy, Physiology, and Cell Biology; School of Veterinary Medicine; University of California; Davis California
| | - Azarene Foutouhi
- Department of Anatomy, Physiology, and Cell Biology; School of Veterinary Medicine; University of California; Davis California
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88
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Ren Z, Shaoyong W, Li Q, Ma L, Xiao J, Jiao J, Yang G, Pang W. Effects of Isatis root polysaccharide on boar sperm quality during liquid storage and in vitro fertilization. Anim Reprod Sci 2019; 210:106178. [PMID: 31635774 DOI: 10.1016/j.anireprosci.2019.106178] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/12/2019] [Accepted: 09/04/2019] [Indexed: 01/18/2023]
Abstract
Liquid preservation of boar semen is a preferred method in pig husbandry, and antioxidants to protect against sperm oxidative stress during periods of storage have become the focus of recent research. Through its antioxidant activity, Isatis root polysaccharide (IRPS), a plant extract, can effectively reduce the cellular lipid peroxidation caused by the accumulation of reactive oxygen species inside mitochondria. In the present study, there was examination of the effects of no supplementation (Control) of a semen extender with or supplementation in different concentrations of IRPS (0.2, 0.4, 0.6, 0.8, and 1.2 mg/mL) on sperm quality variables and antioxidant capacity during liquid storage. The results indicate that after prolonged storage (≥ 3 days), the sperm motility was greater in the group supplemented with 0.6 mg/mL IRPS than in the other groups (P < 0.05). The use of this IRPS concentration also resulted in maintanence of acrosome integrity, plasma membrane integrity, mitochondrial membrane potential, and antioxidant capacity of the sperm (P < 0.05). Furthermore, the results of an in vitro fertilization study indicate IRPS at 0.6 mg/mL markedly increased the sperm fertilization capacity (P < 0.01) and embryonic development to the blastocyst stage (P < 0.05). The addition of 0.6 mg/mL IRPS enhanced the antioxidant capacity of boar sperm, resulting in greater preservation of sperm motility and fertilization capacity during liquid storage. These findings indicate that IRPS has the potential to be used as a component of a semen-preserving diluent to maintain sperm quality during storage.
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Affiliation(s)
- Zhiqiang Ren
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Weike Shaoyong
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qian Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lu Ma
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Junying Xiao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Junheng Jiao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Gongshe Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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89
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Semen quality and fertilization ability of myostatin-knockout boars. Theriogenology 2019; 135:109-114. [DOI: 10.1016/j.theriogenology.2019.05.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 05/16/2019] [Accepted: 05/30/2019] [Indexed: 12/12/2022]
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90
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Zhu Z, Kawai T, Umehara T, Hoque SAM, Zeng W, Shimada M. Negative effects of ROS generated during linear sperm motility on gene expression and ATP generation in boar sperm mitochondria. Free Radic Biol Med 2019; 141:159-171. [PMID: 31212063 DOI: 10.1016/j.freeradbiomed.2019.06.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/06/2019] [Accepted: 06/14/2019] [Indexed: 01/03/2023]
Abstract
Mitochondrial oxidative phosphorylation (OXPHOS) is essential for ATP production to maintain sperm linear motility during migration from the uterus to the oviduct. However, ROS are generated as by-products of OXPHOS, causing stress and damaging the sperm quality. This study aimed to clarify the ROS targets in sperm mitochondria that decrease linear motility and to investigate whether mitochondria-target antioxidants (PQQ and CoQ10) affect mitochondrial activity and sperm motility. Sperm linear motility pattern, ATP production, and mitochondrial activity were decreased with increasing ROS levels during incubation in the low-glucose medium. However, sperm motility patterns and ROS levels were not significantly changed in the high-glucose medium. Moreover, the gene expression system (mt-DNA, mitochondrial transcription factor-A (TFAM) and RNA polymerase (POLRMT)) in sperm mitochondria was damaged during incubation in the low-glucose medium. Interestingly, PQQ treatment increased the mt-DNA stability and decreased the damage to TFAM and POLRMT, which resulted in high expression of mitochondrial genes. Furthermore, the antioxidants increased mitochondrial activity and maintained sperm linear motility under the low glucose condition. These results revealed that both ATP production and the mitochondrial transcription system are damaged with increasing ROS levels in sperm that show a linear motility pattern. Treatment with antioxidants, such as PQQ and CoQ10, is beneficial tool to maintain sperm linear motility.
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Affiliation(s)
- Zhendong Zhu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Shaanxi, China; Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Tomoko Kawai
- Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Takashi Umehara
- Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - S A Masudul Hoque
- Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan; Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Wenxian Zeng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Shaanxi, China.
| | - Masayuki Shimada
- Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan.
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91
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Kumar A, Prasad JK, Srivastava N, Ghosh SK. Strategies to Minimize Various Stress-Related Freeze-Thaw Damages During Conventional Cryopreservation of Mammalian Spermatozoa. Biopreserv Biobank 2019; 17:603-612. [PMID: 31429586 DOI: 10.1089/bio.2019.0037] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The aim of the article is to report a review on different sperm cryopreservation techniques, various stress-related freeze-thaw damages altering sperm structure and function during conventional cryopreservation, and strategies to minimize these stresses. Sperm cryopreservation has allowed indefinite storage and successful transportation of valuable germplasm from proven sites at distant locations, for genetic upgradation through implementation of reproductive techniques, such as artificial insemination. Different techniques for sperm cryopreservation have been proposed such as conventional freezing techniques, directional freezing, and sperm vitrification. Drawbacks related to conventional freezing methods, such as heterogeneous ice nucleation and repeated freeze-thaw cycles at the ice front that disrupts and kill sperm cells, led to the emergence of the directional freezing technique. Sperm vitrification is advantageous as there is no ice crystal-induced physical damages to sperm. However, sperm vitrification has less applicability as encouraging results are only reported in human, dog, and cat. In spite of several drawbacks, conventional freezing techniques are still most widely used for sperm cryopreservation. Spermatozoa experience stresses in the form of cold shock, osmotic stress, and mainly oxidative stress during conventional cryopreservation ultimately reduces the sperm viability and fertility. Several attempts have been made in the past to minimize all these stresses individually or in combination. Membrane fluidity was increased to prevent the cold shock and cryocapacitation-like changes by the addition of cholesterol to the membrane. Antifreeze proteins were added in semen extender to minimize freeze-thaw damages due to heterogeneous ice nucleation and ice recrystallization. Oxidative stress was reduced either by neutralizing reactive oxygen species (ROS) through enzymatic, nonenzymatic, plant-based antioxidants or reductants; or by minimizing the level of sources like the semen radiation exposure, leucocytes, and dead and defective spermatozoa, which lead to ROS production during the semen cryopreservation process. A novel approach of minimizing oxidative stress was to reduce the oxygen tension in sperm microenvironment that is, extender by partial deoxygenation process, as a number of literatures pointed out direct link of O2 with ROS production. When compared with other strategies, partial deoxygenation of semen extender with N2 gassing is found as a cost-effective, comparatively easy and a potential approach to large-scale frozen semen production.
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Affiliation(s)
- Abhishek Kumar
- Germ-Plasm Centre, Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - J K Prasad
- Germ-Plasm Centre, Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - N Srivastava
- Germ-Plasm Centre, Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, India
| | - S K Ghosh
- Germ-Plasm Centre, Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, India
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92
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Colli LG, Belardin LB, Echem C, Akamine EH, Antoniassi MP, Andretta RR, Mathias LS, Rodrigues SFDP, Bertolla RP, de Carvalho MHC. Systemic arterial hypertension leads to decreased semen quality and alterations in the testicular microcirculation in rats. Sci Rep 2019; 9:11047. [PMID: 31363128 PMCID: PMC6667492 DOI: 10.1038/s41598-019-47157-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 06/19/2019] [Indexed: 11/09/2022] Open
Abstract
Arterial hypertension is a cardiovascular disease that leads to important systemic alterations and drastically impairs normal organ function over time. Hypertension affects around 700 million men of reproductive age and hypertensive men present increased risk for reproductive disorders, such as erectile dysfunction. However, the link between arterial hypertension and male reproductive disorders is associative at best. Moreover, many studies have reported associations between decreased male fertility and/or semen quality and alterations to general male health. In this study we aim to investigate the effect of systemic high blood pressure in sperm quality, sperm functional characteristics and testicular physiology in a rat model. Hypertensive rats presented altered testicular morphology – mainly vascular alterations and impaired testicular vasomotion. Hypertensive rats also presented decrease in sperm concentration, DNA integrity and increased percentages of sperm with dysfunctional mitochondria, intracellular superoxide anion activity and abnormal morphology. This study provides mechanistic insights by which arterial hypertension affects the testes, evidencing the testes as another target organ for hypertension as well as its impact on sperm quality.
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Affiliation(s)
- Lucas Giglio Colli
- Department of Pharmacology, Division of Vascular Biology, Hypertension Section, Instituto de Ciências Biomédicas, Universidade de São Paulo -ICB/USP, São Paulo, SP, Brazil.
| | - Larissa Berloffa Belardin
- Department of Surgery, Division of Urology, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil
| | - Cinthya Echem
- Department of Pharmacology, Division of Vascular Biology, Hypertension Section, Instituto de Ciências Biomédicas, Universidade de São Paulo -ICB/USP, São Paulo, SP, Brazil
| | - Eliana Hiromi Akamine
- Department of Pharmacology, Division of Vascular Biology, Hypertension Section, Instituto de Ciências Biomédicas, Universidade de São Paulo -ICB/USP, São Paulo, SP, Brazil
| | - Mariana Pereira Antoniassi
- Department of Surgery, Division of Urology, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil
| | - Rhayza Roberta Andretta
- Department of Surgery, Division of Urology, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil
| | - Lucas Solla Mathias
- Department of Internal Medicine, Botucatu Medical University, Universidade Estadual Paulista - UNESP, Botucatu, São Paulo, Brazil
| | - Stephen Fernandes de Paula Rodrigues
- Department of Pharmacology, Division of Vascular Biology, Hypertension Section, Instituto de Ciências Biomédicas, Universidade de São Paulo -ICB/USP, São Paulo, SP, Brazil
| | - Ricardo Pimenta Bertolla
- Department of Surgery, Division of Urology, Universidade Federal de São Paulo - UNIFESP, São Paulo, Brazil.
| | - Maria Helena Catelli de Carvalho
- Department of Pharmacology, Division of Vascular Biology, Hypertension Section, Instituto de Ciências Biomédicas, Universidade de São Paulo -ICB/USP, São Paulo, SP, Brazil.
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93
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MitoQ ameliorates testicular damage induced by gamma irradiation in rats: Modulation of mitochondrial apoptosis and steroidogenesis. Life Sci 2019; 232:116655. [PMID: 31306659 DOI: 10.1016/j.lfs.2019.116655] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/11/2019] [Accepted: 07/12/2019] [Indexed: 11/21/2022]
Abstract
AIMS The deleterious effect of gamma radiation on testicular tissue is a challenging problem in nuclear medicine. This study investigated the potential radioprotective effect of mitoquinol (MitoQ), a mitochondria-targeted antioxidant, against testicular damage induced by gamma irradiation in rats. MAIN METHODS Rats were allocated into four groups. The first group served as the control, the second group received MitoQ (2 mg / kg / day; i.p.) for seven days, the third group was exposed to gamma radiation (5 Gy as a single dose) and the last group received MitoQ prior to irradiation. Rats were sacrificed. Then, sperm analyses and the serum testosterone were determined. Moreover, evaluation of mitochondrial oxidative stress parameters (SOD, GSH and GPx) as well as apoptosis indicators (cytochrome-c, Bax, Bcl-2 and caspase-3) was performed. Additionally, analysis of steroidogensis biomarkers (StAR, 3β-HSD and 17β-HSD) and histopathological investigations were carried out. KEY FINDINGS MitoQ replenished mitochondrial SOD, GPx and GSH indicating its strong antioxidant effect in addition to its energy preservation manifested by the elevated ATP. MitoQ inhibited the intrinsic apoptosis via diminution of Bax, cytochrome-c and caspase-3 and alleviation of Bcl-2. This antioxidant conferred protection to steroidogenesis as verified by the increase in testosterone and the up-regulation of StAR, 3β-HSD and 17β-HSD expression; these effects might be correlated with its antioxidant/anti-apoptotic potential. Histopathological and sperm analyses corroborated the biochemical findings. SIGNIFICANCE This study identifies MitoQ as a novel agent for the management of testicular toxicity induced by gamma irradiation.
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Comparative Proteomic Analysis of Proteins Involved in Bioenergetics Pathways Associated with Human Sperm Motility. Int J Mol Sci 2019; 20:ijms20123000. [PMID: 31248186 PMCID: PMC6627292 DOI: 10.3390/ijms20123000] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/13/2019] [Accepted: 06/18/2019] [Indexed: 02/05/2023] Open
Abstract
Sperm motility is the most important parameter involved in the fertilization process and it is strictly required for reproductive success. Although sperm movements are essential for the physiologic fertilization process, the data, deriving from studies focused on the research of altered cell pathways involved in asthenozoospermia, offer only limited information about the molecular mechanism underlying sperm motility. The aim of this study was to identify proteins involved in human sperm motility deficiency by using label-free mass-spectrometry liquid chromatography (LC−MS/MS). For this purpose, we selected sperm samples with three different classes of progressive motility: low, medium (asthenozoospermic samples) and high (normozoospermic samples). We found that several differential expressed proteins in asthenozoospermic samples were related to energetic metabolism, suggesting an interesting link between bioenergetics pathways and the regulation of sperm motility, necessary for the flagellum movement. Therefore, our results provide strong evidence that mass spectrometry-based proteomics represents an integrated approach to detect novel biochemical markers of sperm motility and quality with diagnostic relevance for male infertility and unravel the molecular etiology of idiopathic cases.
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95
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Abstract
In the quest for predicting fertility of an individual, enhancing semen handling, dilution and storage protocols, and understanding the impact of environment and, andrologists have changed their approaches to semen analysis. The technologies used today are fast developing and readily implemented in research. Semen is one of a few naturally occurring monocellular suspensions, so sperm function analysis by flow cytometry (FC) and utilization of fluorochromes is an ideal technique for high throughput, objective and accurate analysis. The complementary use of microscopical assessments by Computer-Assisted Semen Analysis (CASA), where sperm cell parameters can be objectively assessed is equally important. The objectivity and repeatability of these techniques have driven research on the function, identification of heterogeneity and fertility of the ejaculate. The wealth of knowledge obtained from the application of these powerful methods has changed our view of the spermatozoon. Although there is some application of these methods in the industry producing boar semen for artificial insemination (AI) and to eliminate sires of sub-standard semen quality, uptake of advanced methods is still slow. Instruments are becoming cheaper and technically more user friendly. Standardization of methodology and optimization of instrument settings is important for full implementation of these systems, including comparison between labs. This review provides an update on two technologies: flow cytometry and CASA for objective analysis of boar semen quality.
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Affiliation(s)
| | - Nana Satake
- School of Veterinary Science, The University of Queensland, Gatton 4343, Australia
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96
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Ros-Santaella JL, Kotrba R, Pintus E. High-energy diet enhances spermatogenic function and increases sperm midpiece length in fallow deer ( Dama dama) yearlings. ROYAL SOCIETY OPEN SCIENCE 2019; 6:181972. [PMID: 31312478 PMCID: PMC6599764 DOI: 10.1098/rsos.181972] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 05/13/2019] [Indexed: 06/10/2023]
Abstract
Nutrition is a major factor involved in the sexual development of livestock ruminants. In the male, a high-energy diet enhances the reproductive function, but its effects on the underlying processes such as spermatogenic efficiency are not yet defined. Moreover, the possible changes in sperm size due to a supplemented diet remain poorly investigated. The main goal of this study was to evaluate whether a high-energy diet affects the spermatogenic activity, epididymal sperm parameters (concentration, morphology, morphometry and acrosome integrity) and blood testosterone levels in fallow deer yearlings. For this purpose, 32 fallow deer were allocated into two groups according to their diet: control (pasture) and experimental (pasture and barley grain) groups. Fallow deer from the experimental group showed a significant increase in the Sertoli cell function and sperm midpiece length, together with a higher testicular mass, sperm concentration and percentage of normal spermatozoa than the control group (p < 0.05). We also found a tendency for higher blood testosterone levels in the animals fed with barley grain (p = 0.116). The better sperm quality found in the experimental group may be related to their higher efficiency of Sertoli cells and to an earlier onset of puberty. The results of the present work elucidate the mechanisms by which dietary supplementation enhances the male sexual development and might be useful for better practices of livestock management in seasonal breeders.
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Affiliation(s)
- José Luis Ros-Santaella
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Prague 6-Suchdol, Czech Republic
| | - Radim Kotrba
- Department of Animal Science and Food Processing, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Prague 6-Suchdol, Czech Republic
- Department of Ethology, Institute of Animal Science, Přátelství 815, 10400 Prague 10-Uhříněves, Czech Republic
| | - Eliana Pintus
- Department of Veterinary Sciences, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Prague 6-Suchdol, Czech Republic
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97
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Blommaert D, Sergeant N, Delehedde M, Jouy N, Mitchell V, Franck T, Donnay I, Lejeune J, Serteyn D. Expression, localization, and concentration of A-kinase anchor protein 4 (AKAP4) and its precursor (proAKAP4) in equine semen: Promising marker correlated to the total and progressive motility in thawed spermatozoa. Theriogenology 2019; 131:52-60. [DOI: 10.1016/j.theriogenology.2019.03.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 12/13/2022]
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98
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Sutovsky P, Kerns K, Zigo M, Zuidema D. Boar semen improvement through sperm capacitation management, with emphasis on zinc ion homeostasis. Theriogenology 2019; 137:50-55. [PMID: 31235187 DOI: 10.1016/j.theriogenology.2019.05.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Critical to fertilization success, sperm capacitation within the female oviductal sperm reservoir endows mammalian spermatozoa with hyperactivated motility and capacity to fertilize. An elaborate cascade of signaling events during capacitation guides the redistribution of sperm plasma membrane seminolipid and cholesterol, Ca-influx and increases tyrosine phosphorylation to promote hyperactivated motility. Such events result in the remodeling of the sperm acrosome, increased fluidity and fusability of the plasma membrane, shedding of surface-adsorbed seminal plasma proteins that glue sperm heads to the oviductal epithelium and ultimately the release of hyperactivated spermatozoa from the oviductal sperm reservoir. Discovered recently, the capacitation-induced sperm zinc ion efflux and resultant zinc signatures are reflective of sperm capacitation status and fertilizing ability, inspiring the retrospection of zinc ion functions in the physiology and fertility of boar sperm and that of other species. This review also highlights the merit of the domestic boar as a biomedical model for spermatology and fertilization research. Relevant to the quest for better fertility management in the livestock industries, the benefits of zinc ion supplementation through nutrition and direct addition to extended semen are discussed in the context of artificial insemination (AI). Ideas are shared on future technologies for zinc management in AI doses and research on the sperm zinc-interacting proteome.
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Affiliation(s)
- Peter Sutovsky
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211-5300, USA; Department of Obstetrics, Gynecology and Women's Health, University of Missouri, Columbia, MO, 65211-5300, USA.
| | - Karl Kerns
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211-5300, USA
| | - Michal Zigo
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211-5300, USA
| | - Dalen Zuidema
- Division of Animal Sciences, University of Missouri, Columbia, MO, 65211-5300, USA
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99
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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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100
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Panner Selvam MK, Agarwal A, Pushparaj PN. Altered Molecular Pathways in the Proteome of Cryopreserved Sperm in Testicular Cancer Patients before Treatment. Int J Mol Sci 2019; 20:E677. [PMID: 30764484 PMCID: PMC6387327 DOI: 10.3390/ijms20030677] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/22/2019] [Accepted: 02/01/2019] [Indexed: 12/18/2022] Open
Abstract
Testicular cancer (TC) represents the most common cancer affecting men within the reproductive age and is often accompanied by major disturbances in semen parameters. Cryopreservation is recommended in these patients before initiating cancer treatment. Currently, there are no studies reporting the molecular mechanisms associated with altered semen quality in these men. The main objective of this study was to compare the sperm proteome of normozoospermic (motility >40%) and asthenozoospermic (motility <40%) TC patients with normozoospermic infertile men without cancer (control group). Pooled sperm samples from normozoospermic (n = 20), asthenozoospermic (n = 11) TC, and a control group (n = 9) were used for quantitative global proteomic profiling using liquid chromatography-tandem mass spectrometry. A total of 1085, 846, and 982 proteins were identified in normozoospermic TC, asthenozoospermic TC, and control groups, respectively. Functional analysis revealed mitochondrial dysfunction and altered cellular pathways in both normozoospermic and asthenozoospermic TC patients. Comparison of pathway analysis showed no significant difference in fertility-associated proteins/mechanism between the normozoospermic TC patients and infertile men. Western blot analysis revealed under-expression of NDUFS1 associated with mitochondrial dysfunction and overexpression of CD63 involved in sperm maturation in both normozoospermic and asthenozoospermic TC patients. Our proteomic results confirm that defective cellular pathways are associated with reproductive functions in both normozoospermic and asthenozoospermic TC patients before the start of cancer treatment.
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Affiliation(s)
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH 44195, USA.
| | - Peter N Pushparaj
- Center of Excellence in Genomic Medicine Research, Jeddah 21589, Saudi Arabia.
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