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Bellido-Quispe DK, Mujica Lengua FR, Contreras Huamani M, Palomino JM. Effect of chemical activators after intracytoplasmic sperm injection (ICSI) on embryo development in alpacas. Anim Reprod Sci 2024; 263:107432. [PMID: 38401395 DOI: 10.1016/j.anireprosci.2024.107432] [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: 11/28/2023] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
Low motility and low sperm concentration are characteristics of alpaca semen. Thus, the intracytoplasmic sperm injection (ICSI) technique represents an alternative to improve the reproductive capacity of the male. However, the effect of post-ICSI activation in alpaca is not yet known. The aim of the present study was to compare the effect of chemical activators on alpaca embryo development after ICSI. Alpaca ovaries were collected from a local slaughterhouse and transported to the laboratory. Category I, II and III oocytes were matured for 30 h at 38.5 °C. After ICSI, injected oocytes were randomly divided and activated as follows: i) 5 μM ionomycin for 5 min, ii) 7% ethanol for 4 min, iii) 5 μM ionomycin for 5 min, window period 3 h plus 7% ethanol for 4 min, iv) 5 μM ionomycin for 5 min, window period 3 h, a second ionomycin treatment for 5 min, followed by 1.9 mM 6-DMAP for 3 h, v) 10 mM SrCl2 for 3 h. Culture was carried out for 5 days in SOFaa at 38.5 °C. The cleavage rate was the lowest in the SrCl2 group, morula development was the lowest in the SrCl2 and without activation groups, and blastocyst stage was not different between groups (P<0.05). The rates with SrCl2 were lower in total embryos produced, whereas in transferable embryos they were lower with 2Io/6-DMAP and with SrCl2 (P<0.05). In conclusion, alpaca oocyte activation is more efficient with ionomycin and ethanol to produce transferable embryos.
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Affiliation(s)
- Dionet Keny Bellido-Quispe
- Instituto Nacional de Innovación Agraria, Estación Experimental Agraria Canaán, Laboratorio de Biotecnología Reproductiva, Ayacucho, Peru.
| | - Fidel Rodolfo Mujica Lengua
- Universidad Nacional de San Cristóbal de Huamanga, Facultad de Ciencias Biológicas, Laboratorio de Biotecnología, Ayacucho, Peru
| | - Mijaíl Contreras Huamani
- Instituto Nacional de Innovación Agraria, Estación Experimental Agraria Canaán, Laboratorio de Biotecnología Reproductiva, Ayacucho, Peru
| | - J Manuel Palomino
- Universidad Científica del Sur, Carrera de Medicina Veterinaria y Zootecnica, Lima, Peru
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Magli MC, Crippa A, Perruzza D, Azzena S, Graziosi S, Coppola F, Tabanelli C, Ferraretti AP, Gianaroli L. Birefringence properties of human immotile spermatozoa and ICSI outcome. Reprod Biomed Online 2023; 46:597-606. [PMID: 36642560 DOI: 10.1016/j.rbmo.2022.11.015] [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: 08/24/2022] [Revised: 11/05/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022]
Abstract
RESEARCH QUESTION In sperm samples with complete asthenozoospermia, pregnancies are achieved by intracytoplasmic sperm injection (ICSI), but this condition has a negative impact on fertilization and embryo development owing to the difficulty of identifying viable cells for oocyte injection. Is the selection of sperm cells with head birefringence properties under polarizing light a successful strategy to identify viable spermatozoa? DESIGN This study included 192 ICSI cycles with complete asthenozoospermia (83 ejaculated and 109 testicular samples) performed under polarized light. Two types of sperm head birefringence were distinguished: partial (presumably reacted spermatozoa) and total (presumably intact acrosome). In some sperm cells, no birefringence was present. The main outcome of the study was the cumulative live birth rate (cLBR) per ICSI cycle. RESULTS Seventy-three deliveries resulted with 38.0% cLBR per ICSI cycle. The injection of birefringent spermatozoa led to significantly higher rates of fertilization, embryo development and implantation compared with the absence of birefringence (P < 0.001). Similarly, the resulting cLBR were 53.6% and 9.0%, respectively (P < 0.001). Spermatozoa with partial head birefringence yielded significantly higher fertilization and embryo utilization rates compared with total birefringence. The cLBR showed the same trend (62.7% and 46.7%, respectively, P = 0.048). Multiple logistic regression analysis showed the pattern of partial birefringence to be strongly associated with live birth rate. CONCLUSIONS Immotile sperm cells with birefringence properties under polarized light have higher chances of inducing fertilization and embryo development compared with non-birefringent cells. In addition, a pattern of partial birefringence, associated with a reacted acrosome, is the strongest predictive factor for live birth delivery, both in ejaculated and testicular samples.
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Affiliation(s)
- M Cristina Magli
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy.
| | - Andor Crippa
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
| | - Davide Perruzza
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
| | - Silvia Azzena
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
| | - Serena Graziosi
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
| | | | - Carla Tabanelli
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
| | - Anna P Ferraretti
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
| | - Luca Gianaroli
- SISMER, Reproductive Medicine Unit, Via Mazzini 12, 40138 Bologna, Italy
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Huang J, Chen H, Li N, Zhao Y. Emerging microfluidic technologies for sperm sorting. ENGINEERED REGENERATION 2023. [DOI: 10.1016/j.engreg.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
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Leclercq A, Ranefall P, Sjunnesson YCB, Hallberg I. Occurrence of late-apoptotic symptoms in porcine preimplantation embryos upon exposure of oocytes to perfluoroalkyl substances (PFASs) under in vitro meiotic maturation. PLoS One 2022; 17:e0279551. [PMID: 36576940 PMCID: PMC9797085 DOI: 10.1371/journal.pone.0279551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 12/09/2022] [Indexed: 12/29/2022] Open
Abstract
The objectives of this study were to evaluate the effect of perfluoroalkyl substances on early embryonic development and apoptosis in blastocysts using a porcine in vitro model. Porcine oocytes (N = 855) collected from abattoir ovaries were subjected to perfluorooctane sulfonic acid (PFOS) (0.1 μg/ml) and perfluorohexane sulfonic acid (PFHxS) (40 μg/ml) during in vitro maturation (IVM) for 45 h. The gametes were then fertilized and cultured in vitro, and developmental parameters were recorded. After 6 days of culture, resulting blastocysts (N = 146) were stained using a terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay and imaged as stacks using confocal laser scanning microscopy. Proportion of apoptotic cells as well as total numbers of nuclei in each blastocyst were analyzed using objective image analysis. The experiment was run in 9 replicates, always with a control present. Effects on developmental parameters were analyzed using logistic regression, and effects on apoptosis and total numbers of nuclei were analyzed using linear regression. Higher cell count was associated with lower proportion of apoptotic cells, i.e., larger blastocysts contained less apoptotic cells. Upon PFAS exposure during IVM, PFHxS tended to result in higher blastocyst rates on day 5 post fertilization (p = 0.07) and on day 6 post fertilization (p = 0.05) as well as in higher apoptosis rates in blastocysts (p = 0.06). PFHxS resulted in higher total cell counts in blastocysts (p = 0.002). No effects attributable to the concentration of PFOS used here was seen. These findings add to the evidence that some perfluoroalkyl substances may affect female reproduction. More studies are needed to better understand potential implications for continued development as well as for human health.
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Affiliation(s)
- Anna Leclercq
- Division of Reproduction, Department of Clinical Sciences & the Centre for Reproductive biology in Uppsala, Swedish University of Agricultural Sciences, Uppsala, Sweden
- * E-mail:
| | - Petter Ranefall
- Department of Information Technology, and SciLifeLab BioImage Informatics Facility, Uppsala University, Uppsala, Sweden
| | - Ylva Cecilia Björnsdotter Sjunnesson
- Division of Reproduction, Department of Clinical Sciences & the Centre for Reproductive biology in Uppsala, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ida Hallberg
- Division of Reproduction, Department of Clinical Sciences & the Centre for Reproductive biology in Uppsala, Swedish University of Agricultural Sciences, Uppsala, Sweden
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de Macedo MP, Glanzner WG, Rissi VB, Gutierrez K, Currin L, Baldassarre H, Bordignon V. A fast and reliable protocol for activation of porcine oocytes. Theriogenology 2018; 123:22-29. [PMID: 30273737 DOI: 10.1016/j.theriogenology.2018.09.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/10/2018] [Accepted: 09/23/2018] [Indexed: 12/29/2022]
Abstract
Oocyte activation is physiologically triggered by the sperm during fertilization, however, production of porcine embryos by somatic cell nuclear transfer (SCNT), intracytoplasmic sperm injection (ICSI) or parthenogenetic activation (PA) requires artificial oocyte activation. Although effective protocols for artificial oocyte activation have been developed, current protocols require long exposures to non-specific inhibitors, which do not mimic the physiological process and may have detrimental consequences for embryo development. This study attempted to mimic the physiological activation events induced by fertilization, through the manipulation of Ca2+ and Zn2+ levels, and protein kinase C (PKC) as well as cyclin dependent kinase 1 (CDK1) activities, with the aim of developing an improved protocol for activation of porcine oocytes. In the first experiment, matured oocytes were exposed to ionomycin (Ion) for 5 min, and then treated with a specific CDK1 inhibitor (RO-3306) and/or PKC activator (OAG) for different time intervals. The highest rate of pronuclear (PN) formation (58.8%) was obtained when oocytes were treated with PKCa + CDK1i for 4 h. Second, PN formation and embryo development were evaluated in oocytes exposed for different times to a Zn2+ chelator (TPEN) following Ion treatment. This revealed that 15 min was the minimal exposure time to TPEN required to maximise oocyte activation and embryo development. Next, we observed that treatment with PKCa + CDK1i for 4 h after TPEN for 15 min decreased embryo development compared to TPEN alone. Lastly, we compared the efficiency of the Ion (5 min) plus TPEN (15 min) protocol (IT-20) with a control protocol used in our laboratory (CT-245) for production of PA, SCNT and ICSI embryos. In PA embryos, IT-20 resulted in higher cleavage (72% vs 49.2%) and blastocyst from cleaved embryos (65.5% vs 46.2%) compared to CT-245. In ICSI embryos, higher PN rates were obtained with the IT-20 protocol compared with CT-245 and the non-activated (N-A) group. Moreover, the two protocols were equally efficient for activation of SCNT embryos. Based on these findings, we propose that IT-20 is a fast and effective protocol for activation of porcine oocytes.
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Affiliation(s)
- Mariana P de Macedo
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Werner G Glanzner
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Vitor B Rissi
- Laboratory of Biotechnology and Animal Reproduction - BioRep, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Karina Gutierrez
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Luke Currin
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Hernan Baldassarre
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Sainte-Anne de Bellevue, Quebec, Canada.
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Casillas F, Betancourt M, Cuello C, Ducolomb Y, López A, Juárez-Rojas L, Retana-Márquez S. An efficiency comparison of different in vitro fertilization methods: IVF, ICSI, and PICSI for embryo development to the blastocyst stage from vitrified porcine immature oocytes. Porcine Health Manag 2018; 4:16. [PMID: 30123521 PMCID: PMC6088397 DOI: 10.1186/s40813-018-0093-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/20/2018] [Indexed: 12/30/2022] Open
Abstract
Background Most studies carried out to evaluate recovery and development after porcine oocyte vitrification, reported better rates when cryopreserved in embryonic development stages or zygotes, but not in immature oocytes. For this reason, many studies are performed to improve immature oocyte vitrification protocols testing the use of different cryoprotectant concentrations, cooling devices, incubation times; but only a few of them have evaluated which fertilization procedure enhances blastocyst rates in vitrified oocytes. Therefore, this study was aimed to evaluate: 1) if the sperm selection with hyaluronic acid (HA) or polyvinylpyrrolidone (PVP) before injection could play a key role in increasing fertilization and blastocyst formation and 2) the embryo developmental ability and blastocyst production of porcine immature oocytes retrieved after vitrification-warming and co-cultured with granulosa cells during IVM, using different fertilization techniques: in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI) and conventional ICSI with hyaluronic acid (HA) sperm selection, known as physiological intracytoplasmic sperm injection (PICSI) and. Results Sperm selected with HA-PICSI displayed a higher percentage of live/acrosome reacted status compared to those in control and exposed to PVP. Higher dead/acrosome reacted rates were obtained after PVP exposure compared to control and HA. In oocytes, viability significantly decreased after IVM in vitrified oocytes. Besides, IVM rates were not different between control denuded oocytes cultured with granulosa cells (DO-GC) and vitrified oocytes. Regarding fertilization parameters, IVF showed higher percentages of total fertilization rate than those obtained by ICSI and PICSI. However, results demonstrate that PICSI fertilization increased the blastocysts formation rate in control DO-GC and vitrified oocytes compared to IVF and ICSI. Conclusions To achieve high blastocyst formation rates from vitrified GV oocytes, it is recommended that sperm should be selected with HA instead of PVP before injection since high viability and acrosome reaction rates were obtained. Also, PICSI fertilization was the best method to produce higher blastocyst rates compared to the IVF and ICSI procedures.
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Affiliation(s)
- Fahiel Casillas
- 1Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico.,2Doctorado en Ciencias Biológicas y de la Salud. Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Miguel Betancourt
- 3Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Cristina Cuello
- 4Departamento de Medicina y Cirugía Animal, Universidad de Murcia, 30100 Espinardo, Spain
| | - Yvonne Ducolomb
- 3Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Alma López
- 3Departamento de Ciencias de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Lizbeth Juárez-Rojas
- 1Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
| | - Socorro Retana-Márquez
- 1Departamento de Biología de la Reproducción, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, 09340 CDMX, Mexico
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