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Shi ZD, Zhang YP, Zhai LP, Zhang MH, Dong YL, Yang HJ, Qiu Y. Sperm Parameters, ASAs and Apoptosis After Processing by the Double Tube and Swim up Methods. Am J Mens Health 2021; 15:15579883211001202. [PMID: 33759613 PMCID: PMC7995456 DOI: 10.1177/15579883211001202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The aim of this study was to improve the quality of semen samples by using a novel double-tube (DT) method. The DT method was developed to select sperm and compared with traditional swim-up (SU) technique for 31 semen samples. Sperm DNA integrity were tested with TUNEL and SCSA. Content of antisperm antibodies (ASA) in the semen was measured by ELISA and MAR. Levels of the caspase-3 in the sperm were assessed by western blotting. After SU and DT, 15 couples and 16 couples were underwent IVF-ET. The number of RCDs, the percentage of SDF and DFI, ASA and the level of caspase-3 were significantly decreased after DT and SU (p = .001 and p< .001). When the DT and SU compared, there were significant changes in the number of RCD, the percentage of SDF and DFI, ASA and the level of caspase-3 (p< 0.05-0.001). There was a higher cleavage rate (p = .017) and a lower abortion rate (p< .05) in DT-IVF group than in SU-IVF group. DT selection yielded spermatozoa with low RCDs, DFI, ASA, and caspase-3 which would be benefit for ART.
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Affiliation(s)
- Zhi-Da Shi
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Key Laboratory for Improving Birth Outcome Technique, Maternal and Child Health Care Hospital of Shandong Province, Jinan, Shandong, People's Republic of China
| | - Yan-Ping Zhang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Key Laboratory for Improving Birth Outcome Technique, Maternal and Child Health Care Hospital of Shandong Province, Jinan, Shandong, People's Republic of China
| | - Li-Ping Zhai
- Shandong Provincial Institute of Control of Endemic Disease, Jinan, Shandong, People's Republic of China
| | - Mei-Hua Zhang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Key Laboratory for Improving Birth Outcome Technique, Maternal and Child Health Care Hospital of Shandong Province, Jinan, Shandong, People's Republic of China
| | - Yun-Ling Dong
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Key Laboratory for Improving Birth Outcome Technique, Maternal and Child Health Care Hospital of Shandong Province, Jinan, Shandong, People's Republic of China
| | - Hui-Jun Yang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Key Laboratory for Improving Birth Outcome Technique, Maternal and Child Health Care Hospital of Shandong Province, Jinan, Shandong, People's Republic of China
| | - Yi Qiu
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Key Laboratory for Improving Birth Outcome Technique, Maternal and Child Health Care Hospital of Shandong Province, Jinan, Shandong, People's Republic of China
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Daneshmandpour Y, Pashazadeh F, Ansari F, Hosseinifard H, Nouri M, Yousefi M, Sakhinia E. The comparative effect of magnetic activated cell sorting, density gradient centrifugation and swim up on assisted reproduction outcomes, sperm DNA fragmentation, and aneuploidy: A systematic review and meta-analysis. Meta Gene 2019. [DOI: 10.1016/j.mgene.2019.100607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Yamanaka M, Tomita K, Hashimoto S, Matsumoto H, Satoh M, Kato H, Hosoi Y, Inoue M, Nakaoka Y, Morimoto Y. Combination of density gradient centrifugation and swim-up methods effectively decreases morphologically abnormal sperms. J Reprod Dev 2016; 62:599-606. [PMID: 27616283 PMCID: PMC5177978 DOI: 10.1262/jrd.2016-112] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Density gradient centrifugation (DGC) and swim-up techniques have been reported for semen preparation in assisted reproductive techniques in humans. We
investigated whether semen preparation using a combination of DGC and swim-up techniques could effectively decrease morphologically abnormal human sperms at the
ultrastructural level. Semen samples were obtained from 16 infertile males and fractionated by swim-up following DGC. Ultrastructural abnormalities of sperms
obtained from original semen, lower layer of swim-up following DGC, and upper layer of swim-up following DGC were analyzed by transmission electron microscopy.
The correlation among ultrastructural head abnormality in sperms from the upper layer of swim-up, fertilization in in vitro fertilization, and
pregnancy after embryo transfer was also investigated. Furthermore, sperms with DNA fragmentation in the samples processed via a combination of DGC and swim-up
was assessed in a sperm chromatin structure assay. Ultrastructural abnormalities in sperm heads and tails in the upper layer after swim-up following DGC was the
lowest among the three groups. Sperms with nuclear vacuoles were the most difficult to eliminate using a combination of DGC and swim-up in all types of head
abnormalities. A negative correlation was confirmed between the fertilization rates of intracytoplasmic sperm injection and head abnormality of sperms obtained
from the upper layer of the swim-up following DGC. Sperms with DNA fragmentation were effectively decreased using the combination of two techniques. In
conclusion, the combination of DGC and swim-up effectively decreased the number of sperms with ultrastructural abnormalities both in the head and in the tail.
However, sperms with ultrastructural abnormalities that cannot be completely decreased using a combination of DGC and swim-up may impair fertilization in some
cases of intracytoplasmic sperm injection.
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Sánchez-Calabuig MJ, López-Cardona AP, Fernández-González R, Ramos-Ibeas P, Fonseca Balvís N, Laguna-Barraza R, Pericuesta E, Gutiérrez-Adán A, Bermejo-Álvarez P. Potential Health Risks Associated to ICSI: Insights from Animal Models and Strategies for a Safe Procedure. Front Public Health 2014; 2:241. [PMID: 25478554 PMCID: PMC4235077 DOI: 10.3389/fpubh.2014.00241] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 11/03/2014] [Indexed: 12/23/2022] Open
Abstract
Artificial reproductive techniques are currently responsible for 1.7–4% of the births in developed countries and intracytoplasmatic sperm injection (ICSI) is the most commonly used, accounting for 70–80% of the cycles performed. Despite being an invaluable tool for infertile couples, the technique bypasses several biological barriers that naturally select the gametes to achieve an optimal embryonic and fetal development. In this perspective, ICSI has been associated with an increased risk for diverse health problems, ranging from premature births and diverse metabolic disorders in the offspring to more severe complications such as abortions, congenital malformations, and imprinting disorders. In this review, we discuss the possible implications of the technique per se on these adverse outcomes and highlight the importance of several experiments using mammalian models to truthfully test these implications and to uncover the molecular base that origins these health problems. We also dissect the specific hazards associated to ICSI and describe some strategies that have been developed to mimic the gamete selection occurring in natural conception in order to improve the safety of the procedure.
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Affiliation(s)
- María Jesús Sánchez-Calabuig
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain ; Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria, Universidad Complutense de Madrid , Madrid , Spain
| | - Angela Patricia López-Cardona
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Raúl Fernández-González
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Priscila Ramos-Ibeas
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Noelia Fonseca Balvís
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Ricardo Laguna-Barraza
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Eva Pericuesta
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Alfonso Gutiérrez-Adán
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
| | - Pablo Bermejo-Álvarez
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) , Madrid , Spain
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Curti G, Skowronek F, Vernochi R, Rodriguez-Buzzi AL, Rodriguez-Buzzi JC, Casanova G, Sapiro R. Morphological evaluation of sperm from infertile men selected by magnetic activated cell sorting (MACS). Reprod Biol 2014; 14:289-92. [PMID: 25454495 DOI: 10.1016/j.repbio.2014.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 07/04/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
Abstract
Electron microscopy analysis performed in five infertile human subjects after sperm selection by swim-up followed by magnetic activated cell sorting (MACS) demonstrated a decrease in the number of spermatozoa with characteristics compatible with cell death. However, no significant differences were found when the swim-up/MACS semen fraction was compared with swim-up fraction alone.
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Affiliation(s)
- Gianni Curti
- Departamento de Biologia Molecular - Instituto De Investigaciones Biológicas Clemente Estable (IIBCE), Avenida Italia 3318, CP 11600 Montevideo, Uruguay.
| | - Fernanda Skowronek
- Laboratorio de Biología Molecular de la Reproducción - Departamento de Histología y Embriología, Facultad de Medicina, Gral. Flores 2125, 11800 Montevideo, Uruguay.
| | - Rita Vernochi
- Centro de Reproducción Humana del Interior (CERHIN), Bvar. Artigas 1665/102, Montevideo, Uruguay.
| | | | | | - Gabriela Casanova
- Unidad de Microscopía Electrónica de Transmisión - Facultad de Ciencias, Iguá 4225, 11400 Montevideo, Uruguay.
| | - Rossana Sapiro
- Laboratorio de Biología Molecular de la Reproducción - Departamento de Histología y Embriología, Facultad de Medicina, Gral. Flores 2125, 11800 Montevideo, Uruguay.
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Iranpour FG. The effects of protamine deficiency on ultrastructure of human sperm nucleus. Adv Biomed Res 2014; 3:24. [PMID: 24592371 PMCID: PMC3929078 DOI: 10.4103/2277-9175.124666] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Accepted: 08/25/2013] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Chromomycin A3 (CMA3) staining is one of the staining methods for detecting protamine deficiency in sperm nucleus. CMA3 is a fluorochrome that competes with protamines for binding to DNA double helix. It has been shown in our previous studies that percentage of CMA3 positive spermatozoa in semen has a close significant relationship with the fertilization rate in in vitro fertilization (IVF). The aim of this study was to examine the ultrastructural differences between sperms in patients who had high fluorescent percentages of yellow or red in CMA3 staining (protamine deficient) with patients with low fluorescent percentages. MATERIALS AND METHODS Semen samples are taken from five patients with high fluorescent percentages and five patients with low fluorescent percentages. Then the samples are passed for the different steps of preparing for electron microscopy. After the sectioning and mounting on grids, they are investigated under the transmission electron microscope. RESULTS Sperms in patients with low percentages of positive spermatozoa often have a normal appearance. Sperms in high fluorescent samples frequently have unpacked chromatin. Furthermore acrosomes of these sperms are thinner or disturbed. Also sometimes there are irregularities in sperm head membrane. CONCLUSION Protamine deficiency in sperm nucleus can cause ultrastructural anomalies in sperm chromatin such as unpacking of it. It also is concomitant with acrosome and sperm membrane disturbances.
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Gómez-Torres MJ, García EM, Guerrero J, Girela JL, Ten J, Bernabeu R, De Juan J. Estudio de los daños estructurales tras la inmovilización espermática previa a la microinyección intracitoplasmática de espermatozoides en sujetos teratozoospérmicos. Rev Int Androl 2014. [DOI: 10.1016/j.androl.2013.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sperm chromatin structure assay results after swim-up are related only to embryo quality but not to fertilization and pregnancy rates following IVF. Asian J Androl 2011; 13:862-6. [PMID: 21841807 DOI: 10.1038/aja.2011.77] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The aim of this study was to investigate whether the sperm chromatin structure assay (SCSA) results after swim-up are related to fertilization rates, embryo quality and pregnancy rates following in vitro fertilization (IVF). A total of 223 couples undergoing IVF in our hospital from October 2008 to September 2009 were included in this study. Data on the IVF process and sperm chromatin structure assay results were collected. Fertilization rate, embryo quality and IVF success rates of different DNA fragmentation index (DFI) subgroups and high DNA stainability (HDS) subgroups were compared. There were no significant differences in fertilization rate, clinical pregnancy or delivery rates between the DFI and HDS subgroups. However, the group with abnormal DFI had a lower good embryo rate. So, we concluded that the SCSA variables, either DFI or HDS after swim-up preparation, were not valuable in predicting fertilization failure or pregnancy rate, but an abnormal DFI meant a lower good embryo rate following IVF.
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Sousa AP, Amaral A, Baptista M, Tavares R, Caballero Campo P, Caballero Peregrín P, Freitas A, Paiva A, Almeida-Santos T, Ramalho-Santos J. Not all sperm are equal: functional mitochondria characterize a subpopulation of human sperm with better fertilization potential. PLoS One 2011; 6:e18112. [PMID: 21448461 PMCID: PMC3063179 DOI: 10.1371/journal.pone.0018112] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2010] [Accepted: 02/24/2011] [Indexed: 11/19/2022] Open
Abstract
Human sperm samples are very heterogeneous and include a low amount of truly functional gametes. Distinct strategies have been developed to characterize and isolate this specific subpopulation. In this study we have used fluorescence microscopy and fluorescence-activated cell sorting to determine if mitochondrial function, as assessed using mitochondrial-sensitive probes, could be employed as a criterion to obtain more functional sperm from a given ejaculate. We first determined that mitochondrial activity correlated with the quality of distinct human samples, from healthy donors to patients with decreased semen quality. Furthermore, using fluorescence-activated cell sorting to separate sperm with active and inactive mitochondria we found that this was also true within samples. Indeed, sperm with active mitochondria defined a more functional subpopulation, which contained more capacitated and acrosome intact cells, sperm with lower chromatin damage, and, crucially, sperm more able to decondense and participate in early development using both chemical induction and injection into mature bovine oocytes. Furthermore, cell sorting using mitochondrial activity produced a more functional sperm subpopulation than classic swim-up, both in terms of improvement in a variety of functional sperm parameters and in statistical significance. In conclusion, whatever the true biological role of sperm mitochondria in fertilization, mitochondrial activity is a clear hallmark of human sperm functionality.
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Affiliation(s)
- Ana Paula Sousa
- Department of Life Sciences, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- Human Reproduction Service, University Hospitals of Coimbra, Coimbra, Portugal
| | - Alexandra Amaral
- Department of Life Sciences, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Marta Baptista
- Department of Life Sciences, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Renata Tavares
- Department of Life Sciences, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | | | | | | | - Artur Paiva
- Histocompatibility Centre of Coimbra, Coimbra, Portugal
| | - Teresa Almeida-Santos
- Human Reproduction Service, University Hospitals of Coimbra, Coimbra, Portugal
- Faculty of Medicine, University of Coimbra, Coimbra
| | - João Ramalho-Santos
- Department of Life Sciences, Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
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Brahem S, Mehdi M, Elghezal H, Saad A. Semen processing by density gradient centrifugation is useful in selecting sperm with higher double-strand DNA integrity. Andrologia 2011; 43:196-202. [DOI: 10.1111/j.1439-0272.2010.01050.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Jackson RE, Bormann CL, Hassun PA, Rocha AM, Motta EL, Serafini PC, Smith GD. Effects of semen storage and separation techniques on sperm DNA fragmentation. Fertil Steril 2010; 94:2626-30. [DOI: 10.1016/j.fertnstert.2010.04.049] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Revised: 03/26/2010] [Accepted: 04/20/2010] [Indexed: 11/15/2022]
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Sperm DNA damage measured by the alkaline Comet assay as an independent predictor of male infertility and in vitro fertilization success. Fertil Steril 2010; 95:652-7. [PMID: 20864101 DOI: 10.1016/j.fertnstert.2010.08.019] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Revised: 07/06/2010] [Accepted: 08/10/2010] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To evaluate sperm DNA fragmentation and semen parameters to diagnose male factor infertility and predict pregnancy after IVF. DESIGN Prospective study. SETTING Academic research laboratory. PATIENT(S) Seventy-five couples undergoing IVF and 28 fertile donors. INTERVENTION(S) Sperm DNA fragmentation was measured by the alkaline Comet assay in semen and sperm after density gradient centrifugation (DGC). Binary logistic regression was used to analyze odds ratios (OR) and relative risks (RR) for IVF outcomes. MAIN OUTCOME MEASURE(S) Semen parameters and sperm DNA fragmentation in semen and DGC sperm compared with fertilization rates, embryo quality, and pregnancy. RESULT(S) Men with sperm DNA fragmentation at more than a diagnostic threshold of 25% had a high risk of infertility (OR: 117.33, 95% confidence interval [CI]: 12.72-2,731.84, RR: 8.75). Fertilization rates and embryo quality decreased as sperm DNA fragmentation increased in semen and DGC sperm. The risk of failure to achieve a pregnancy increased when sperm DNA fragmentation exceeded a prognostic threshold value of 52% for semen (OR: 76.00, CI: 8.69-1,714.44, RR: 4.75) and 42% for DGC sperm (OR: 24.18, CI: 2.89-522.34, RR: 2.16). CONCLUSION(S) Sperm DNA testing by the alkaline Comet assay is useful for both diagnosis of male factor infertility and prediction of IVF outcome.
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Hourcade JD, Pérez-Crespo M, Fernández-González R, Pintado B, Gutiérrez-Adán A. Selection against spermatozoa with fragmented DNA after postovulatory mating depends on the type of damage. Reprod Biol Endocrinol 2010; 8:9. [PMID: 20113521 PMCID: PMC2825232 DOI: 10.1186/1477-7827-8-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Accepted: 01/31/2010] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Before ovulation, sperm-oviduct interaction mechanisms may act as checkpoint for the selection of fertilizing spermatozoa in mammals. Postovulatory mating does not allow the sperm to attach to the oviduct, and spermatozoa may only undergo some selection processes during the transport through the female reproductive tract and/or during the zona pellucida (ZP) binding/penetration. METHODS We have induced DNA damage in spermatozoa by two treatments, (a) a scrotal heat treatment (42 degrees C, 30 min) and (b) irradiation with 137Cs gamma-rays (4 Gy, 1.25 Gy/min). The effects of the treatments were analyzed 21-25 days post heat stress or gamma-radiation. Postovulatory females mated either with treated or control males were sacrificed at Day 14 of pregnancy, and numbers of fetuses and resorptions were recorded. RESULTS Both treatments decreased significantly implantation rates however, the proportion of fetuses/resorptions was only reduced in those females mated to males exposed to radiation, indicating a selection favoring fertilization of sperm with unfragmented DNA on the heat treatment group. To determine if DNA integrity is one of the keys of spermatozoa selection after postovulatory mating, we analyzed sperm DNA fragmentation by COMET assay in: a) sperm recovered from mouse epididymides; b) sperm recovered from three different regions of female uterine horns after mating; and c) sperm attached to the ZP after in vitro fertilization (IVF). Similar results were found for control and both treatments, COMET values decreased significantly during the transit from the uterine section close to the uterotubal junction to the oviduct, and in the spermatozoa attached to ZP. However, fertilization by IVF and intracytoplasmatic sperm injection (ICSI) showed that during sperm ZP-penetration, a stringent selection against fragmented-DNA sperm is carried out when the damage was induced by heat stress, but not when DNA fragmentation was induced by radiation. CONCLUSION Our results indicate that in postovulatory mating there is a preliminary general selection mechanism against spermatozoa with low motility and fragmented-DNA during the transport through the female reproductive tract and in the ZP binding, but the ability of the ZP to prevent fertilization by fragmented-DNA spermatozoa is achieved during sperm-ZP penetration, and depends on the source of damage.
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Affiliation(s)
- Juan D Hourcade
- Dpto. de Reproducción Animal y Conservación de Recursos Zoogenéticos, INIA, Ctra de la Coruña Km 5.9, Madrid 28040, Spain
| | - Miriam Pérez-Crespo
- Dpto. de Reproducción Animal y Conservación de Recursos Zoogenéticos, INIA, Ctra de la Coruña Km 5.9, Madrid 28040, Spain
| | - Raúl Fernández-González
- Dpto. de Reproducción Animal y Conservación de Recursos Zoogenéticos, INIA, Ctra de la Coruña Km 5.9, Madrid 28040, Spain
| | - Belén Pintado
- Centro Nacional de Biotecnología, CSIC. C/Darwin 3 Madrid 28049, Spain
| | - Alfonso Gutiérrez-Adán
- Dpto. de Reproducción Animal y Conservación de Recursos Zoogenéticos, INIA, Ctra de la Coruña Km 5.9, Madrid 28040, Spain
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Piomboni P, Serafini F, Gambera L, Musacchio C, Collodel G, Morgante G, De Leo V. Sperm aneuploidies after human recombinant follicle stimulating hormone therapy in infertile males. Reprod Biomed Online 2009; 18:622-9. [PMID: 19549439 DOI: 10.1016/s1472-6483(10)60005-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Errors in sperm chromosome segregation are frequently observed in infertile males. It would therefore be useful to develop methods for reducing the rate of aneuploidy in spermatozoa. Thirty-one males were selected with an elevated frequency of total sperm aneuploidy of sperm chromosomes 18, X and Y by fluorescence in-situ hybridization (FISH): 22 were treated with 150 IU of recombinant FSH on alternate days for 3 months and the other nine (controls) did not receive any hormonal treatment. Before therapy, FISH analysis demonstrated an increased frequency of diploidy (0.663 +/- 0.09%), disomy (0.412 +/- 0.03%) and total aneuploidy (1.30 +/- 0.12%) in the 22 males. Sperm analyses revealed reduced progressive motility (26.73 +/- 2.3%) and a reduced percentage of spermatozoa with normal morphology (23.86 +/- 5.3%). After 90 days of therapy, a significant reduction in aneuploidies (mean total aneuploidy: 0.86% +/- 0.11; P = 0.005) was obtained, as well as an improvement in functional and structural sperm characteristics. In untreated patients, no significant change in semen parameters and frequency of total aneuploidy was observed between baseline (1.054 +/- 0.06%) and 90 days later (1.080 +/- 0.05%). It is therefore suggested that deranged meiotic segregation in spermatozoa could be reduced by FSH treatment.
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Affiliation(s)
- Paola Piomboni
- Department of Biomedical Sciences, University of Siena, Italy.
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Kotwicka M, Depa-Martynów M, Butowska W, Filipiak K, Pawelczyk L, Jedrzejczak P. Human Spermatozoa Ultrastructure Assessment in the Infertility Treatment by Assisted Reproduction Technique. ACTA ACUST UNITED AC 2009; 53:297-302. [DOI: 10.1080/01485010701730708] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Chaveiro A, Santos P, da Silva FM. Assessment of Sperm Apoptosis in Cryopreserved Bull Semen After Swim-up Treatment: A Flow Cytometric Study. Reprod Domest Anim 2007; 42:17-21. [PMID: 17214767 DOI: 10.1111/j.1439-0531.2006.00712.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The techniques used to prepare bovine spermatozoa for in vitro fertilization, to enhance the percentage of motile sperm cells include the swim-up (SU) method, among others. The objective of the present study was to evaluate the phosphatidylserine (PS) translocation and plasma membrane integrity as the indicator of apoptosis and necrosis in post-thaw bull sperm after SU treatment using annexin V-fluorescein isothiocyanate (FITC)/propidium iodide (PI) assay. A flow cytometric method was employed to measure apoptosis levels on frozen-thawed bull spermatozoa. The assay detects PS translocation across the plasma membrane using a fluorescein-labelled annexin-V and PI. By using the annexin V/PI assay four different subpopulations of sperm were observed: (i) a population of apoptotic sperm, labelled with annexin V-FITC but not with PI; (ii) a population of early necrotic spermatozoa, sperm labelled with annexin-FITC and PI; (iii) a population of necrotic sperm, labelled with PI but not with annexin-FITC; and (iv) a population of fully viable sperm cells, sperm not labelled with annexin V-FITC and without PI. Results clearly indicated that SU technique itself could have an adverse effect on the spermatozoa membrane stability. It has also been found, significant differences between bulls in the levels of apoptotic sperm, after SU treatment.
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Affiliation(s)
- A Chaveiro
- Animal Reproduction, Department of Agrarian Sciences, University of the Azores, Angra do Heroismo, Portugal.
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18
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Samardzija M, Karadjole M, Getz I, Makek Z, Cergolj M, Dobranic T. Effects of bovine spermatozoa preparation on embryonic development in vitro. Reprod Biol Endocrinol 2006; 4:58. [PMID: 17101040 PMCID: PMC1647281 DOI: 10.1186/1477-7827-4-58] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Accepted: 11/13/2006] [Indexed: 11/10/2022] Open
Abstract
The aim of our research was to examine the ability of density gradient preparation BoviPure and swim up method on bull sperm separation and in vitro embryo production (IVP) systems. Frozen/thawed semen from six Simmental bulls was pooled and treated using both methods. The sperm motility, concentration, membrane activity, membrane integrity and acrosomal status were evaluated and compared before and after sperm processing using BoviPure and swim up methods. We also evaluated and compared cleavage rates, embryo yield and quality between the methods. There were significant differences (P < 0.05) between the sperm characteristics before and after BoviPure, but not after swim up method. However, there were significant differences for sperm results among those two mentioned methods. A total of 641 oocytes were matured and fertilized in vitro and cultured in SOFaaBSA. The percentage of cleavage (Day 2) and the percentage of hatched embryos (Day 9) were similar for both methods. However, embryo production rate (Day 7) was significantly higher using BoviPure method (P < 0.05). Also, total cell number and embryo differential staining (inner cell mass and trophectoderm cells) of Day 7 morulas and blastocysts showed that BoviPure treated sperm displayed higher quality embryos compared to swim up method (P < 0.05). Our results indicate that BoviPure method has an enhanced capacity in sperm selection for in vitro embryo production when compared with swim up method. So, we concluded that BoviPure could be considered as a better alternative to swim up method for separating bull spermatozoa from frozen/thawed semen for IVP of bovine embryos.
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Affiliation(s)
- Marko Samardzija
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia
| | - Martina Karadjole
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia
| | - Iva Getz
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia
| | - Zdenko Makek
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia
| | - Marijan Cergolj
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia
| | - Tomislav Dobranic
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia
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Cesari A, Kaiser GG, Mucci N, Mutto A, Vincenti A, Fornés MW, Alberio RH. Integrated morphophysiological assessment of two methods for sperm selection in bovine embryo production in vitro. Theriogenology 2006; 66:1185-93. [PMID: 16647751 DOI: 10.1016/j.theriogenology.2006.03.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2006] [Accepted: 03/02/2006] [Indexed: 11/28/2022]
Abstract
Extensive work was done regarding the ability of Swim up and Percoll gradient to select functional sperm for in vitro embryo production (IVP) systems. The aim of this work was to compare Swim up and Percoll as methods of sperm selection by ultrastructural, biochemical and functional studies. Frozen-thawed semen from two bulls (Experiments 1 and 2, respectively) were treated using Swim up or Percoll discontinuous gradients. Motility, sperm membrane ultrastructure, sperm proteins, in vitro embryo production (insemination doses, cleavage, embryo yield and quality) and embryo sex ratio were scored and compared. Electron transmission microscopy of outer sperm membranes showed higher (P<0.05) percentage of sperm with lost acrosomes in Percoll treated samples compared to Swim up. A differential protein pattern was also detected. When in vitro embryo production was performed, Percoll gradient produced higher (P<0.05) number of fertilizing doses (7.6 versus 5.9, Bull 1; 13.5 versus 7.8, Bull 2) and higher sperm motility (90% versus 76.6%, Bull 1; 81.7% versus 68.3%, Bull 2) than Swim up. The percentage of cleavage (Day 3) was similar in both treatment groups, whereas embryo production rate (Day 7) was higher (39.4% versus 30.2%, Bull 1; 38% versus 32.4%, Bull 2; P<0.05) when Percoll gradient was used. The percentage of hatched embryos (Day 11) and sex ratio did not differ. Total cell counting and embryo differential staining (inner cell mass and trophoblast cells) of Day 7 embryos showed that Percoll treated sperm produced better quality embryos compared to Swim up. We concluded that Percoll had a better performance selecting sperm and an enhanced capacity for embryo production when compared with the Swim up procedure; this could be attributed to a better acrosome exocytosis, associated to the absence of certain membrane proteins.
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Affiliation(s)
- A Cesari
- Instituto de Investigaciones Biológicas, Facultad de Ciencias Exactas y Naturales, UNMdP. CC:1245 (7600) Mar del Plata, Buenos Aires, Argentina.
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