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García-Molina A, Navarro N, Cerveró C, Sadeghi S, Valverde A, Roldan ERS, Bompart D, Garrido N, Soler C. Effect of incubation and analysis temperatures on sperm kinematics and morphometrics during human semen analysis. Rev Int Androl 2023; 21:100350. [PMID: 36933371 DOI: 10.1016/j.androl.2023.100350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 03/18/2022] [Indexed: 03/18/2023]
Abstract
INTRODUCTION Human semen analysis must be performed after the liquefaction of the ejaculate. This takes place about 30min after ejaculation and samples must be maintained in the lab during this time. The temperatures for this incubation and the final analysis of motility are crucial but seldom taken into account. This study aims to examine the effect of these temperatures on various sperm parameters both manually (sperm count, motility, morphology, viability, chromatin condensation and maturation and DNA fragmentation) and CASA (kinematics and morphometrics, using an ISAS®v1 CASA-Mot and CASA-Morph systems, respectively) analyzed. METHODS Seminal samples from thirteen donors were incubated for 10min at 37°C followed by additional 20min at either room temperature (RT, 23°C) or 37°C and then examined following WHO 2010 criteria. RESULTS The data obtained show that there were no significant differences (P>0.05) in the subjective sperm quality parameters with incubation temperature. On the other hand, the head sperm morphometric parameters were significantly higher after room temperature incubation showing, in addition, lower ellipticity (P<0.05). Furthermore, kinematic parameters were evaluated both at RT and 37°C for the two incubation temperatures. In general, the four temperature combinations showed that kinematic parameters followed this order: RT-RT<RT-37<37-37<37-RT (incubation and analysis temperatures respectively). CONCLUSIONS Our results showed that temperature control during both incubation and analysis is needed for accurate semen analysis, recommending the use of 37°C during the entire process.
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Affiliation(s)
| | - Nuria Navarro
- IVI Foundation, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Clara Cerveró
- Proiser R+D, C/. Catedràtic Agustín Escardino 9, 46980 Paterna, Spain
| | - Sara Sadeghi
- Proiser R+D, C/. Catedràtic Agustín Escardino 9, 46980 Paterna, Spain
| | - Anthony Valverde
- Costa Rica Institute of Technology, School of Agronomy, San Carlos Campus, 223-21002 Alajuela, Costa Rica
| | - Eduardo R S Roldan
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (CSIC), 28006 Madrid, Spain
| | - Daznia Bompart
- Proiser R+D, C/. Catedràtic Agustín Escardino 9, 46980 Paterna, Spain
| | - Nicolás Garrido
- IVI Foundation, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Carles Soler
- Department of Cellular Biology, Functional Biology and Physical Anthropology, University of València, C/. Doctor Moliner 50, 46100 Burjassot, Spain
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2
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What is the importance of sperm subpopulations? Anim Reprod Sci 2022; 246:106844. [PMID: 34538510 DOI: 10.1016/j.anireprosci.2021.106844] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 12/14/2022]
Abstract
The study of sperm subpopulations spans three decades. The origin, meaning, and practical significance, however, are less clear. Current technology for assessing sperm morphology (CASA-Morph) and motility (CASA-Mot) has enabled the accurate evaluation of these features, and there are many options for data classification. Subpopulations could occur as a result of the stage of development of each spermatozoon in the subpopulation. Spermatogenesis might contribute to the production of these subpopulations. Insights from evolutionary biology and recent molecular research are indicative of the diversity among male gametes that could occur from unequal sharing of transcripts and other elements through cytoplasmic bridges between spermatids. Sperm cohorts exiting the gonads would contain different RNA and protein contents, affecting the spermatozoon physiology and associations with the surrounding environmental milieu. Subsequently, these differences could affect how spermatozoa interact with the environmental milieu (maturation, mixing with seminal plasma, and interacting with the environmental milieu, or female genital tract and female gamete). The emergence of sperm subpopulations as an outcome of evolution, related to the reproductive strategies of the species, genital tract structures, and copulatory and fertilization processes. This kind of approach in determining the importance of sperm subpopulations in fertilization capacity should have a practical impact for conducting reproductive technologies, inspiring and enabling new ways for the more efficient use of spermatozoa in the medical, animal breeding, and conservation fields. This manuscript is a contribution to the Special Issue in memory of Dr. Duane Garner.
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Calderón-Calderón J, Sevilla F, Roldan ERS, Barquero V, Valverde A. Influence of Fat-Soluble Vitamin Intramuscular Supplementation on Kinematic and Morphometric Sperm Parameters of Boar Ejaculates. Front Vet Sci 2022; 9:908763. [PMID: 35903145 PMCID: PMC9315373 DOI: 10.3389/fvets.2022.908763] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Ejaculate quality can be regarded as multifactorial, with nutrition being a factor that could directly influence sperm parameters. The present study aimed to evaluate seminal quality associated with seasonal fat-soluble vitamin supplementation of boars. Seven sexually mature boars were randomly allotted to one of the three groups, and fed one of the three supplementary diets for 32 weeks: (1) control treatment (COD), without supplementation of fat-soluble vitamins, (2) treatment containing 100% fat-soluble vitamin supplementation administered intramuscularly, which was based on fat soluble vitamin supplementation (A, D3, E) (FVD1), and (3) treatment containing 50% of fat-soluble vitamin supplementation (FVD12). Semen was collected at 7-day intervals. Semen samples were analyzed to assess several sperm parameters using the Computer-Assisted Semen Analysis (CASA) ISAS®v1 system. Results showed that groups receiving FVD1 and FVD12 supplementation had an increased semen volume. The percentages of motile and progressively motile sperm were increased by FVD1 treatment. A statistically significant interaction between treatment and season was found in the percentage of motility and progressive motility (p < 0.05). Sperm concentrations showed significant differences (p < 0.05) between treatments. Velocity variables (VSL, VCL, and VAP) were higher (p < 0.05) in boars that received fat-soluble vitamin supplementation in comparison to controls receiving no supplementation. The FVD1 treatment presented spermatozoa with greater head size and more elongated heads (p < 0.05). Overall, the utilization of dietary fat-soluble vitamin supplementation significantly improved the semen quality of boar ejaculates. This highlights the importance of fat-soluble vitamin supplementation in sexually active boars.
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Affiliation(s)
- Josué Calderón-Calderón
- Animal Reproduction Laboratory, School of Agronomy, Costa Rica Institute of Technology, Alajuela, Costa Rica
| | - Francisco Sevilla
- Animal Reproduction Laboratory, School of Agronomy, Costa Rica Institute of Technology, Alajuela, Costa Rica
| | - Eduardo R. S. Roldan
- Department of Biodiversity and Evolutionary Biology, National Museum of Natural Sciences, Spanish National Research Council (CSIC), Madrid, Spain
| | - Vinicio Barquero
- Animal Reproduction Laboratory, School of Agronomy, Costa Rica Institute of Technology, Alajuela, Costa Rica
- Faculty of Agri-Food Sciences, Alfredo Volio Mata Experimental Station, University of Costa Rica, Cartago, Costa Rica
| | - Anthony Valverde
- Animal Reproduction Laboratory, School of Agronomy, Costa Rica Institute of Technology, Alajuela, Costa Rica
- *Correspondence: Anthony Valverde
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4
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Gacem S, Catalán J, Yánez-Ortiz I, Soler C, Miró J. New Sperm Morphology Analysis in Equids: Trumorph ® Vs Eosin-Nigrosin Stain. Vet Sci 2021; 8:vetsci8050079. [PMID: 34066550 PMCID: PMC8148583 DOI: 10.3390/vetsci8050079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/28/2021] [Accepted: 05/01/2021] [Indexed: 11/22/2022] Open
Abstract
The evaluation of the male fertility potential is based on the analysis of the basic spermatic characteristics of concentration, motility and morphology. Thus, the study of sperm morphology is a fundamental element in the seminal analysis, but its real meaning has been biased by the techniques used for its evaluation. These techniques involve dehydration phases and subsequent staining, which involves the production of artifacts. The aim of the study is to compare two methods for equid semen morphology evaluation, Trumorph® using living sperm vs. eosin-nigrosine stain. A total of 49 ejaculates from stallions and donkeys were used. After semen collection and dilution, an aliquot was placed on the slide and introduced in the Trumorph® device. Then observation was made with a 40x objective and negative phase-contrast microscope. Another aliquot was stained using eosin-nigrosine stain and viewed using 100× magnification. Well-formed sperm were observed, and different abnormalities were identified using Trumorph®. The use of eosin-nigrosin staining method and Trumorph® led to the same results and both techniques can be used for stallion and donkey sperm morphological analysis. However, considering the fact that Trumorph® uses living sperm helps prevent sperm cell alteration during sample preparation. Therefore, Trumorph® can be a good alternative to the conventional staining method, which provides a quick test on live sperm.
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Affiliation(s)
- Sabrina Gacem
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Veterinary Faculty, Autonomous University of Barcelona, 08193 Bellaterra, Spain; (S.G.); (J.C.); (I.Y.-O.)
| | - Jaime Catalán
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Veterinary Faculty, Autonomous University of Barcelona, 08193 Bellaterra, Spain; (S.G.); (J.C.); (I.Y.-O.)
| | - Iván Yánez-Ortiz
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Veterinary Faculty, Autonomous University of Barcelona, 08193 Bellaterra, Spain; (S.G.); (J.C.); (I.Y.-O.)
| | - Carles Soler
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universitat de València, 46100, Burjassot, Valencia, Spain. Proiser R+D, Scientific Park, University of Valencia, C/ Catedràtic Agustín Escardino, 9, Building 3 (CUE), Floor 1, 46980 Paterna, Spain
- Correspondence: (C.S.); (J.M.)
| | - Jordi Miró
- Equine Reproduction Service, Department of Animal Medicine and Surgery, Veterinary Faculty, Autonomous University of Barcelona, 08193 Bellaterra, Spain; (S.G.); (J.C.); (I.Y.-O.)
- Correspondence: (C.S.); (J.M.)
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Tanga BM, Qamar AY, Raza S, Bang S, Fang X, Yoon K, Cho J. Semen evaluation: methodological advancements in sperm quality-specific fertility assessment - A review. Anim Biosci 2021; 34:1253-1270. [PMID: 33902175 PMCID: PMC8255896 DOI: 10.5713/ab.21.0072] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/30/2021] [Indexed: 11/27/2022] Open
Abstract
Assessment of male fertility is based on the evaluation of sperm. Semen evaluation measures various sperm quality parameters as fertility indicators. However, semen evaluation has limitations, and it requires the advancement and application of strict quality control methods to interpret the results. This article reviews the recent advances in evaluating various sperm-specific quality characteristics and methodologies, with the help of different assays to assess sperm-fertility status. Sperm evaluation methods that include conventional microscopic methods, computer-assisted sperm analyzers (CASA), and flow cytometric analysis, provide precise information related to sperm morphology and function. Moreover, profiling fertility-related biomarkers in sperm or seminal plasma can be helpful in predicting fertility. Identification of different sperm proteins and diagnosis of DNA damage has positively contributed to the existing pool of knowledge about sperm physiology and molecular anomalies associated with different infertility issues in males. Advances in methods and sperm-specific evaluation has subsequently resulted in a better understanding of sperm biology that has improved the diagnosis and clinical management of male factor infertility. Accurate sperm evaluation is of paramount importance in the application of artificial insemination and assisted reproductive technology. However, no single test can precisely determine fertility; the selection of an appropriate test or a set of tests and parameters is required to accurately determine the fertility of specific animal species. Therefore, a need to further calibrate the CASA and advance the gene expression tests is recommended for faster and field-level applications.
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Affiliation(s)
- Bereket Molla Tanga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea.,Faculty of Veterinary Medicine, Hawassa University, 05, Hawassa, Ethiopia
| | - Ahmad Yar Qamar
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea.,Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang 35200, Sub-campus University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Sanan Raza
- Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang 35200, Sub-campus University of Veterinary and Animal Sciences, Lahore 54000, Pakistan.,Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang 35200, Sub-campus University of Veterinary and Animal Sciences, Lahore 54000, PakistanDepartment of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Aydin Adnan Menderes University, Aydin 09016, Turkey
| | - Seonggyu Bang
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Xun Fang
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
| | - Kiyoung Yoon
- Department of Companion Animal, Shingu College, Seongnam 13174, Korea
| | - Jongki Cho
- College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
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6
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Dai C, Zhang Z, Jahangiri S, Shan G, Moskovstev S, Librach C, Jarvi K, Sun Y. Automated motility and morphology measurement of live spermatozoa. Andrology 2021; 9:1205-1213. [PMID: 33740840 DOI: 10.1111/andr.13002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/05/2021] [Accepted: 03/16/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Automated sperm analysis has wide applications in infertility diagnosis. Existing systems are not able to measure sperm count and both motility and morphology of individual live spermatozoa. Morphology measurement requires invasive staining, making the spermatozoa after morphology measurement not applicable to infertility treatment. OBJECTIVE To evaluate the reproducibility and reliability of automated measurement of individual live sperm's motility and morphology. MATERIALS AND METHODS Fresh semen samples were obtained from twenty male partners attending for fertility investigations. The system firstly measured motility for all the spermatozoa within the field of view under a low magnification (20×), then a spermatozoa of interest is selected by the user and automatically relocated by the system after switching to a high magnification (100×) for morphology measurement. Reproducibility of sperm measurements was evaluated by intraclass correlation coefficients on consecutive measurement. Reliability of motility and morphology measurement was evaluated by tracking error rate and limits of agreement, respectively, with manual measurement as benchmark. RESULTS Measurement of all motility and morphology parameters had intraclass correlation coefficients higher than 0.94. Sperm motility measurement had a tracking error rate of 2.1%. Limit of agreement analysis indicated that automated measurement and manual measurement of sperm morphology were interchangeable. Automated measurement of all morphology parameters was not statistically different from manual measurement, as confirmed by the paired sample t test. DISCUSSION Automated motility and morphology measurement of single sperm revealed high reproducibility and reliability. The system also achieved a high efficiency for motility and morphology measurement. In addition to the intracytoplasmic sperm injection (ICSI) samples with polyvinylpyrrolidone (PVP), the developed sperm measurement technique is also effective for analyzing semen and washed samples. The system provides a valuable tool for quantitative measurement and selection of single spermatozoa for ICSI. It can also be used for sperm motility and morphology analysis in andrology laboratories.
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Affiliation(s)
- Changsheng Dai
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Zhuoran Zhang
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | | | - Guanqiao Shan
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | | | | | - Keith Jarvi
- Division of Urology, Mount Sinai Hospital, Toronto, ON, Canada
| | - Yu Sun
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada.,Institute of Biomaterials & Biomedical Engineering, University of Toronto, Toronto, ON, Canada.,Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, Canada.,Department of Computer Science, University of Toronto, Toronto, ON, Canada
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7
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Huanca-Marca NF, Ordoñez-Rodríguez CD, Quispe-Ccasa HA, Antezana-Julian WO, Jordan-Misme LA, Ampuero-Casquino E, Cucho-Dolmos HC. Parámetros morfométricos del espermatozoide de alpaca ( Vicugna pacos), obtenidos por tres métodos de colección. JOURNAL OF THE SELVA ANDINA ANIMAL SCIENCE 2020. [DOI: 10.36610/j.jsaas.2020.070200050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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8
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Huanca-Marca NF, Ordoñez-Rodríguez CD, Quispe-Ccasa HA, Antezana-Julian WO, Jordan-Misme LA, Ampuero-Casquino E, Cucho-Dolmos HC. Morphometric parameters of alpaca spermatozoa ( Vicugna pacos), obtained by three collection methods. JOURNAL OF THE SELVA ANDINA ANIMAL SCIENCE 2020. [DOI: 10.36610/j.jsaas.2020.070200050x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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9
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Valverde A, Barquero V, Soler C. The application of computer-assisted semen analysis (CASA) technology to optimise semen evaluation. A review. JOURNAL OF ANIMAL AND FEED SCIENCES 2020. [DOI: 10.22358/jafs/127691/2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Cucho H, López Y, Caldeira C, Valverde A, Ordóñez C, Soler C. Comparison of three different staining methods for the morphometric characterization of Alpaca (Vicugna pacos) sperm, using ISAS® CASA-Morph system. NOVA BIOLOGICA REPERTA 2019. [DOI: 10.29252/nbr.6.3.284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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11
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Zhu WJ. Preparation and observation methods can produce misleading artefacts in human sperm ultrastructural morphology. Andrologia 2018; 50:e13043. [DOI: 10.1111/and.13043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2018] [Indexed: 11/28/2022] Open
Affiliation(s)
- W.-J. Zhu
- Department of Developmental and Regenerative Biology; College of Life Science and Technology; Jinan University; Guangzhou China
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12
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Tomlinson MJ, Naeem A. CASA in the medical laboratory: CASA in diagnostic andrology and assisted conception. Reprod Fertil Dev 2018; 30:850-859. [DOI: 10.1071/rd17520] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 01/15/2018] [Indexed: 01/22/2023] Open
Abstract
CASA has been used in reproductive medicine and pathology laboratories for over 25 years, yet the ‘fertility industry’ generally remains sceptical and has avoided automation, despite clear weaknesses in manual semen analysis. Early implementers had difficulty in validating CASA-Mot instruments against recommended manual methods (haemocytometer) due to the interference of seminal debris and non-sperm cells, which also affects the accuracy of grading motility. Both the inability to provide accurate sperm counts and a lack of consensus as to the value of sperm kinematic parameters appear to have continued to have a negative effect on CASA-Mot’s reputation. One positive interpretation from earlier work is that at least one or more measures of sperm velocity adds clinical value to the semen analysis, and these are clearly more objective than any manual motility analysis. Moreover, recent CASA-Mot systems offer simple solutions to earlier problems in eliminating artefacts and have been successfully validated for sperm concentration; as a result, they should be viewed with more confidence in relation to motility grading. Sperm morphology and DNA testing both require an evidence-based consensus and a well-validated (reliable, reproducible) assay to be developed before automation of either can be of real clinical benefit.
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13
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Maroto-Morales A, García-Álvarez O, Ramón M, Martínez-Pastor F, Fernández-Santos MR, Soler AJ, Garde JJ. Current status and potential of morphometric sperm analysis. Asian J Androl 2017; 18:863-870. [PMID: 27678465 PMCID: PMC5109877 DOI: 10.4103/1008-682x.187581] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The spermatozoon is the most diverse cell type known and this diversity is considered to reflect differences in sperm function. How the diversity in sperm morphology arose during speciation and what role the different specializations play in sperm function, however, remain incompletely characterized. This work reviews the hypotheses proposed to explain sperm morphological evolution, with a focus on some aspects of sperm morphometric evaluation; the ability of morphometrics to predict sperm cryoresistance and male fertility is also discussed. For this, the evaluation of patterns of change of sperm head morphometry throughout a process, instead of the study of the morphometric characteristics of the sperm head at different stages, allows a better identification of the males with different sperm cryoconservation ability. These new approaches, together with more studies employing a greater number of individuals, are needed to obtain novel results concerning the role of sperm morphometry on sperm function. Future studies should aim at understanding the causes of sperm design diversity and the mechanisms that generate them, giving increased attention to other sperm structures besides the sperm head. The implementation of scientific and technological advances could benefit the simultaneous examination of sperm phenotype and sperm function, demonstrating that sperm morphometry could be a useful tool for sperm assessment.
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Affiliation(s)
| | - Olga García-Álvarez
- SaBio IREC (CSIC - UCLM - JCCM), Albacete, Spain.,Biomedical Center, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic
| | - Manuel Ramón
- Regional Center of Animal Selection and Reproduction (CERSYRA) JCCM, Valdepeñas, Spain
| | - Felipe Martínez-Pastor
- Institute for Animal Health and Cattle Development, University of León, León, Spain.,Department of Molecular Biology, University of León, León, Spain
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14
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Soler C, Cooper TG, Valverde A, Yániz JL. Afterword to Sperm morphometrics today and tomorrow special issue in Asian Journal of Andrology. Asian J Androl 2017; 18:895-897. [PMID: 27751989 PMCID: PMC5109882 DOI: 10.4103/1008-682x.188451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Carles Soler
- Department of Functional Biology and Physical Anthropology, University of València, 46100 Burjassot, Spain.,Department of R+D, Proiser R+D, Science Park, University of València, 46980 Paterna, Spain
| | | | - Anthony Valverde
- Department of Animal Production and Food Science, Higher Polytechnic School of Huesca, University of Zaragoza, Ctra. Cuarte S/N 22071 Huesca, Spain
| | - Jesús L Yániz
- Department of Animal Production and Food Science, Higher Polytechnic School of Huesca, University of Zaragoza, Ctra. Cuarte S/N 22071 Huesca, Spain
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15
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Soler C, Cooper TG. Foreword to Sperm morphometrics today and tomorrow special issue in Asian Journal of Andrology. Asian J Androl 2017; 18:815-818. [PMID: 27633908 PMCID: PMC5109868 DOI: 10.4103/1008-682x.187582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Early in his investigations, Leeuwenhoek (1670s)1 deduced that spermatozoa were alive and an integral part of semen, rather than artifacts or parasites. He eventually observed spermatozoa in the semen of men, dogs, horses, birds, fishes, amphibians, molluscs, and many insects, and concluded that they must be a universal feature of male reproduction. The huge differences in sperm form among species have been discussed in relation to evolutionary changes dictated by the egg and its investments.2 Spallanzani (1800s)1 was the first scientist to develop successful methods for artificial insemination, first with amphibians and later with dogs. With these experiments, he showed that physical contact between intact spermatozoa and ova was necessary to achieve the fertilization. Some years later (1820s), Prévost and Dumas1 performed the defining experiment to identify correctly the function of spermatozoa in reproduction.
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Affiliation(s)
- Carles Soler
- Department of Functional Biology and Physical Anthropology, University of València, 46100 Burjassot, València, Spain.,Department of R+D, Proiser R+D, Science Park, University of València, 46980 Paterna, València, Spain
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16
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Valverde A, Arenán H, Sancho M, Contell J, Yániz J, Fernández A, Soler C. Morphometry and subpopulation structure of Holstein bull spermatozoa: variations in ejaculates and cryopreservation straws. Asian J Androl 2016; 18:851-857. [PMID: 27678464 PMCID: PMC5109875 DOI: 10.4103/1008-682x.187579] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Sperm quality is evaluated for the calculation of sperm dosage in artificial reproductive programs. The most common parameter used is motility, but morphology has a higher potential as a predictor of genetic quality. Morphometry calculations from CASA-Morph technology improve morphological evaluation and allow mathematical approaches to the problem. Semen from 28 Holstein bulls was collected by artificial vagina, and several ejaculates were studied. After general evaluation, samples were diluted, packaged in 0.25 ml straws, and stored in liquid nitrogen. Two straws per sample were thawed, and slides were processed and stained with Diff-Quik. Samples were analyzed by a CASA-Morph system for eight morphometric parameters. In addition to the "classical" statistical approach, based on variance analysis (revealing differences between animals, ejaculates, and straws), principal component (PC) analysis showed that the variables were grouped into PC1, related to size, and PC2 to shape. Subpopulation structure analysis showed four groups, namely, big, small, short, and narrow from their dominant characteristics, representing 31.0%, 27.3%, 24.1%, and 17.7% of the total population, respectively. The distributions varied between animals and ejaculates, but between straws, there were no differences in only four animals. This modern approach of considering an ejaculate sperm population as divided into subpopulations reflecting quantifiable parameters generated by CASA-Morph systems technology opens a new view on sperm function. This is the first study applying this approach to evaluate different ejaculates and straws from the same individual. More work must be done to improve seminal dose calculations in assisted reproductive programs.
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Affiliation(s)
- Anthony Valverde
- Technological Institute of Costa Rica, San Carlos Campus, School of Agronomy, 223-21001 Alajuela, Costa Rica
| | - Héctor Arenán
- Xenética Fontao, Fontao-Esperante, 27210 Lugo, Spain
| | - María Sancho
- R+D Department, Proiser R+D, Scientific Park, University of València, 46980 Paterna, Spain
| | - Jesús Contell
- R+D Department, Proiser R+D, Scientific Park, University of València, 46980 Paterna, Spain
| | - Jesús Yániz
- Department of Animal Production and Food Science, Politechnical School of Huesca, University of Zaragoza, 22071 Huesca, Spain
| | | | - Carles Soler
- R+D Department, Proiser R+D, Scientific Park, University of València, 46980 Paterna, Spain
- Department of Functional Biology and Physical Anthropology, University of València, 46100 Burjassot, Spain
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Cooper TG. Looking forward to human sperm morphology. Hum Reprod 2015; 31:8-9. [DOI: 10.1093/humrep/dev253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 09/15/2015] [Indexed: 11/12/2022] Open
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Yániz JL, Soler C, Santolaria P. Computer assisted sperm morphometry in mammals: A review. Anim Reprod Sci 2015; 156:1-12. [PMID: 25802026 DOI: 10.1016/j.anireprosci.2015.03.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 02/26/2015] [Accepted: 03/01/2015] [Indexed: 11/19/2022]
Affiliation(s)
- J L Yániz
- TECNOGAM Research Group, Environmental Sciences Institute (IUCA), University of Zaragoza, Huesca, Spain.
| | - C Soler
- Department of Functional Biology and Physical Anthropology, University of Valencia, Valencia, Spain
| | - P Santolaria
- TECNOGAM Research Group, Environmental Sciences Institute (IUCA), University of Zaragoza, Huesca, Spain
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Andolfi L, Trevisan E, Troian B, Prato S, Boscolo R, Giolo E, Luppi S, Martinelli M, Ricci G, Zweyer M. The application of scanning near field optical imaging to the study of human sperm morphology. J Nanobiotechnology 2015; 13:2. [PMID: 25591971 PMCID: PMC4302611 DOI: 10.1186/s12951-014-0061-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 12/18/2014] [Indexed: 11/16/2022] Open
Abstract
Background The morphology of spermatozoa is a fundamental aspect to consider in fertilization, sperm pathology, assisted reproduction and contraception. Head, neck, midpiece, principal and terminal part of flagellum are the main sperm components to investigate for identifying morphological features and related anomalies. Recently, scanning near-field optical microscopy (SNOM), which belongs to the wide family of nanoscopic techniques, has opened up new routes for the investigation of biological systems. SNOM is the only technique able to provide simultaneously highly resolved topography and optical images with a resolution beyond the diffraction limit, typical of conventional optical microscopy. This offers the advantage to obtain complementary information about cell surface and cytoplasmatic structures. Results In this work human spermatozoa both healthy and with morphological anomalies are analyzed by SNOM, to demonstrate the potentiality of such approach in the visualization of sperm morphological details. The combination of SNOM topography with optical (reflection and transmission) images enables to examine typical topographic features of spermatozoa together with underlying cytoplasmic structures. Indeed the head shape and inner components as acrosome and nucleus, and the organization of mitochondria in the midpiece region are observed. Analogously for principal tract of the tail, the ridges and the columns are detected in the SNOM topography, while their internal arrangement can be observed in the corresponding SNOM optical transmission images, without requiring specific staining procedures or invasive protocols. Conclusions Such findings demonstrate that SNOM represents a versatile and powerful tool to describe topographical and inner structural details of spermatozoa simultaneously. This analysis could be helpful for better characterizing several morphological anomalies, often related to sperm infertility, which cannot be examined by conventional techniques all together. Electronic supplementary material The online version of this article (doi:10.1186/s12951-014-0061-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Laura Andolfi
- IOM-CNR, Area Science Park, Basovizza, Trieste, Italy.
| | - Elisa Trevisan
- Department of Life Sciences University of Trieste, Trieste, Italy.
| | - Barbara Troian
- A.P.E. Research Srl, AREA Science Park, Basovizza, Trieste, Italy.
| | - Stefano Prato
- A.P.E. Research Srl, AREA Science Park, Basovizza, Trieste, Italy.
| | - Rita Boscolo
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy.
| | - Elena Giolo
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy.
| | - Stefania Luppi
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy.
| | - Monica Martinelli
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy.
| | - Giuseppe Ricci
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, Trieste, Italy. .,Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy.
| | - Marina Zweyer
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy.
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