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Jung S, Sul H, Oh D, Jung YG, Lee J, Hyun SH. Slow freezing cryopreservation of Korean bovine blastocysts with an additional sucrose pre-equilibration step. Front Vet Sci 2024; 11:1400899. [PMID: 38659455 PMCID: PMC11039926 DOI: 10.3389/fvets.2024.1400899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 03/29/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Embryo cryopreservation is a valuable technique used for preserving genetic resources for long periods. However, the survival rate of embryos is dependent on the method used. Therefore, in this study, we evaluated the efficiency of slow freezing method but with an additional dehydration step prior to freezing to overcome the formation of ice crystals. Methods Oocytes collected from the ovaries of native Korean cattle subjected to in vitro fertilization were cultured for 7 days until the formation of expanded blastocysts. Before freezing, the blastocysts were placed in four pre-equilibration media: a control medium with no addition of sucrose, and three experimental media with the addition of 0.1, 0.25, and 0.5 M sucrose, respectively. Then, the pre-equilibrated embryos were frozen. Embryo survival and hatching rates were evaluated morphologically at 24, 48, and 72 h after thawing. Immunofluorescence staining, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay, and gene expression analysis of the re-expanded blastocytes were examined 24 h after freeze-thawing. Results The survival rate was significantly higher in the 0.1 M group than in the control group (p < 0.05), and the hatching rate at 72 h was significantly higher in the 0.25 and 0.5 M groups than in the control group (p < 0.05). TUNEL-positive cells were significantly lower in the 0.25 M group than in the control group (12.5 ± 0.9 vs. 8.3 ± 0.8; p < 0.05). The gene expression of BCL2 associated X, heat shock protein 70 kDa, and aquaporin 3 in the 0.25 M group was significantly lower than that in the control group (p < 0.05). Conclusion Our study revealed that treatment with 0.25 M sucrose before slow freezing improved the viability of bovine embryos after freeze-thawing.
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Affiliation(s)
- Seungki Jung
- Veterinary Medical Center and College of Veterinary Medicine, Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), Chungbuk National University, Cheongju, Republic of Korea
- ET Biotech Co. Ltd., Jangsu, Republic of Korea
| | | | - Dongjin Oh
- Veterinary Medical Center and College of Veterinary Medicine, Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), Chungbuk National University, Cheongju, Republic of Korea
- Institute of Stem Cell and Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju, Republic of Korea
| | | | - Joohyeong Lee
- Department of Companion Animal Industry, Semyung University, Jecheon, Republic of Korea
| | - Sang-Hwan Hyun
- Veterinary Medical Center and College of Veterinary Medicine, Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), Chungbuk National University, Cheongju, Republic of Korea
- Institute of Stem Cell and Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju, Republic of Korea
- Graduate School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, Republic of Korea
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Masuda Y, Hasebe R, Kuromi Y, Kobayashi M, Urataki K, Hishinuma M, Ohbayashi T, Nishimura R. Three-Dimensional Live Imaging of Bovine Preimplantation Embryos: A New Method for IVF Embryo Evaluation. Front Vet Sci 2021; 8:639249. [PMID: 33981741 PMCID: PMC8107228 DOI: 10.3389/fvets.2021.639249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/11/2021] [Indexed: 12/21/2022] Open
Abstract
Conception rates for transferred bovine embryos are lower than those for artificial insemination. Embryo transfer (ET) is widely used in cattle but many of the transferred embryos fail to develop, thus, a more effective method for selecting bovine embryos suitable for ET is required. To evaluate the developmental potential of bovine preimplantation embryos (2-cell stage embryos and blastocysts), we have used the non-invasive method of optical coherence tomography (OCT) to obtain live images. The images were used to evaluate 22 parameters of blastocysts, such as the volume of the inner cell mass and the thicknesses of the trophectoderm (TE). Bovine embryos were obtained by in vitro fertilization (IVF) of the cumulus-oocyte complexes aspirated by ovum pick-up from Japanese Black cattle. The quality of the blastocysts was examined under an inverted microscope and all were confirmed to be Code1 according to the International Embryo Transfer Society standards for embryo evaluation. The OCT images of embryos were taken at the 2-cell and blastocyst stages prior to the transfer. In OCT, the embryos were irradiated with near-infrared light for a few minutes to capture three-dimensional images. Nuclei of the 2-cell stage embryos were clearly observed by OCT, and polynuclear cells at the 2-cell stage were also clearly found. With OCT, we were able to observe embryos at the blastocyst stage and evaluate their parameters. The conception rate following OCT (15/30; 50%) is typical for ETs and no newborn calves showed neonatal overgrowth or died, indicating that the OCT did not adversely affect the ET. A principal components analysis was unable to identify the parameters associated with successful pregnancy, while by using hierarchical clustering analysis, TE volume has been suggested to be one of the parameters for the evaluation of bovine embryo. The present results show that OCT imaging can be used to investigate time-dependent changes of IVF embryos. With further improvements, it should be useful for selecting high-quality embryos for transfer.
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Affiliation(s)
- Yasumitsu Masuda
- Department of Animal Science, Tottori Livestock Research Center, Tottori, Japan
| | | | | | | | - Kanako Urataki
- Laboratory of Theriogenology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Mitsugu Hishinuma
- Laboratory of Theriogenology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Tetsuya Ohbayashi
- Organization for Research Initiative and Promotion, Tottori University, Tottori, Japan
| | - Ryo Nishimura
- Laboratory of Theriogenology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori, Japan
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3
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Masuda Y, Hasebe R, Kuromi Y, Kobayashi M, Iwamoto M, Hishinuma M, Ohbayashi T, Nishimura R. Three-dimensional live imaging of bovine embryos by optical coherence tomography. J Reprod Dev 2021; 67:149-154. [PMID: 33487605 PMCID: PMC8075722 DOI: 10.1262/jrd.2020-151] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
While embryo transfer (ET) is widely practiced, many of the transferred embryos fail to develop in cattle. To establish a more effective method for selecting
bovine embryos for ET, here we quantified morphological parameters of living embryos using three-dimensional (3D) images non-invasively captured by optical
coherence tomography (OCT). Seven Japanese Black embryos produced by in vitro fertilization that had reached the expanded blastocyst stage
after 7 days of culture were transferred after imaged by OCT. Twenty-two parameters, including thickness and volumes of the inner cell mass, trophectoderm, and
zona pellucida, and volumes of blastocoel and whole embryo, were quantified from 3D images. Four of the seven recipients became pregnant. We suggest that these
22 parameters can be potentially employed to evaluate the quality of bovine embryos before ET.
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Affiliation(s)
- Yasumitsu Masuda
- Department of Animal Science, Tottori Livestock Research Center, Tottori 689-2503, Japan
| | - Ryo Hasebe
- SCREEN Holdings Co., Ltd., Kyoto 612-8486, Japan
| | | | | | - Misaki Iwamoto
- Laboratory of Theriogenology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Mitsugu Hishinuma
- Laboratory of Theriogenology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Tetsuya Ohbayashi
- Organization for Research Initiative and Promotion, Tottori University, Tottori 680-8550, Japan
| | - Ryo Nishimura
- Laboratory of Theriogenology, Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
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Martin JH, Aitken RJ, Bromfield EG, Nixon B. DNA damage and repair in the female germline: contributions to ART. Hum Reprod Update 2020; 25:180-201. [PMID: 30541031 DOI: 10.1093/humupd/dmy040] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/27/2018] [Accepted: 11/06/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND DNA integrity and stability are critical determinants of cell viability. This is especially true in the female germline, wherein DNA integrity underpins successful conception, embryonic development, pregnancy and the production of healthy offspring. However, DNA is not inert; rather, it is subject to assault from various environment factors resulting in chemical modification and/or strand breakage. If structural alterations result and are left unrepaired, they have the potential to cause mutations and propagate disease. In this regard, reduced genetic integrity of the female germline ranks among the leading causes of subfertility in humans. With an estimated 10% of couples in developed countries taking recourse to ART to achieve pregnancy, the need for ongoing research into the capacity of the oocyte to detect DNA damage and thereafter initiate cell cycle arrest, apoptosis or DNA repair is increasingly more pressing. OBJECTIVE AND RATIONALE This review documents our current knowledge of the quality control mechanisms utilised by the female germline to prevent and remediate DNA damage during their development from primordial follicles through to the formation of preimplantation embryos. SEARCH METHODS The PubMed database was searched using the keywords: primordial follicle, primary follicle, secondary follicle, tertiary follicle, germinal vesical, MI, MII oocyte, zygote, preimplantation embryo, DNA repair, double-strand break and DNA damage. These keywords were combined with other phrases relevant to the topic. Literature was restricted to peer-reviewed original articles in the English language (published 1979-2018) and references within these articles were also searched. OUTCOMES In this review, we explore the quality control mechanisms utilised by the female germline to prevent, detect and remediate DNA damage. We follow the trajectory of development from the primordial follicle stage through to the preimplantation embryo, highlighting findings likely to have important implications for fertility management, age-related subfertility and premature ovarian failure. In addition, we survey the latest discoveries regarding DNA repair within the metaphase II (MII) oocyte and implicate maternal stores of endogenous DNA repair proteins and mRNA transcripts as a primary means by which they defend their genomic integrity. The collective evidence reviewed herein demonstrates that the MII oocyte can engage in the activation of major DNA damage repair pathway(s), therefore encouraging a reappraisal of the long-held paradigm that oocytes are largely refractory to DNA repair upon reaching this late stage of their development. It is also demonstrated that the zygote can exploit a number of protective strategies to mitigate the risk and/or effect the repair, of DNA damage sustained to either parental germline; affirming that DNA protection is largely a maternally driven trait but that some aspects of repair may rely on a collaborative effort between the male and female germlines. WIDER IMPLICATIONS The present review highlights the vulnerability of the oocyte to DNA damage and presents a number of opportunities for research to bolster the stringency of the oocyte's endogenous defences, with implications extending to improved diagnostics and novel therapeutic applications to alleviate the burden of infertility.
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Affiliation(s)
- Jacinta H Martin
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW, Australia
| | - R John Aitken
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW, Australia
| | - Elizabeth G Bromfield
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW, Australia
| | - Brett Nixon
- Priority Research Centre for Reproductive Science, Discipline of Biological Sciences, University of Newcastle, Callaghan, NSW, Australia.,Hunter Medical Research Institute, Kookaburra Circuit, New Lambton Heights, NSW, Australia
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Ferré LB, Kjelland ME, Taiyeb AM, Campos-Chillon F, Ross PJ. Recent progress in bovine in vitro-derived embryo cryotolerance: Impact of in vitro culture systems, advances in cryopreservation and future considerations. Reprod Domest Anim 2020; 55:659-676. [PMID: 32144939 DOI: 10.1111/rda.13667] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/19/2020] [Indexed: 02/01/2023]
Abstract
Cryopreservation of in vitro-derived bovine embryos is a crucial step for the widespread reproduction and conservation of valuable high-merit animals. Given the current popularity of bovine in vitro embryo production (IVP), there is a demand for a highly efficient ultra-low temperature storage method in order to maximize donor ovum pickup (OPU) turn-over, recipient availability/utilization and domestic/overseas commercial trading opportunities. However, IVP bovine embryos are still very sensitive to chilling and cryopreservation, and despite recent progress, a convenient (simple and robust) protocol has not yet been developed. At the moment, there are two methods for bovine IVP embryo cryopreservation: slow programmable freezing and vitrification. Both of the aforementioned techniques have pros and cons. While controlled-rate slow cooling can easily be adapted for direct transfer (DT), ice crystal formation remains an issue. On the other hand, vitrification solved this problem but the possibility of successful DT commercial incorporation remains to be determined. Moreover, simplification of the vitrification protocol (including warming) through the use of an in-straw dilution without the use of a microscope is a prerequisite for its use under farm conditions. This review summarizes the bovine IVP embryo cryopreservation achievements, strengths and limitations of both freezing systems and prospective improvements to enhance cryosurvival, as well as perspectives on future directions of this assisted reproductive technology.
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Affiliation(s)
- Luis B Ferré
- National Institute of Agricultural Technology (INTA), Buenos Aires, Argentina
| | - Michael E Kjelland
- Conservation, Genetics & Biotech, LLC, Valley City, ND, USA.,Mayville State University, Mayville, ND, USA
| | - Ahmed M Taiyeb
- Conservation, Genetics & Biotech, LLC, Valley City, ND, USA.,Barz IVF Center for Embryo Research and Infertility Treatment, Kurdistan, Iraq
| | - Fernando Campos-Chillon
- Animal Science Department, California Polytechnic State University, San Luis Obispo, CA, USA
| | - Pablo J Ross
- Department of Animal Science, University of California, Davis, CA, USA
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6
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Is it possible to alter the embryo lipid accumulation with reduction of fetal bovine serum and use of l-carnitine for in vitro maturation of bubaline oocytes? ZYGOTE 2020. [DOI: 10.1017/s096719941900073x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryIn vitro embryo production (IVEP) is a procedure that can promote genetic improvement in a short time frame. However, the success rates obtained with this biotechnology in water buffaloes are still inconsistent, and can be associated with the high concentration of lipids in the cytoplasm of oocytes and embryos. The objective of this study was to evaluate the effects of reduced concentration of fetal bovine serum (FBS) and/or use of l-carnitine during in vitro maturation (IVM) on the preimplantation development and lipid accumulation in bubaline embryos. In a first experiment, the lowest concentration of FBS in the IVM medium (0%, 2.5%, 5% or 10%) was determined, and the lowest concentration that maintained good embryo development rates was 5%. In a second experiment, the addition of 5 mM of l-carnitine into the maturation medium was evaluated. The blastocysts produced were submitted to lipid evaluation involving staining followed by observation using optical (Oil Red O) and confocal (BODIPY 493/503) microscopy. No difference was observed between the 5% and 10% FBS groups, which were superior to the 0% and 2.5% groups. Furthermore, the performance of the groups treated with 5% and 10% FBS was better than the groups supplemented with l-carnitine. There was no difference regarding embryo lipid accumulation. The results indicated that it is possible to reduce the FBS concentration to 5% in in vitro maturation medium for production of bubaline embryos, and supplementation with 5 mM l-carnitine does not increase embryo production.
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7
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Do VH, Catt S, Kinder JE, Walton S, Taylor-Robinson AW. Vitrification of in vitro-derived bovine embryos: targeting enhancement of quality by refining technology and standardising procedures. Reprod Fertil Dev 2020; 31:837-846. [PMID: 30625115 DOI: 10.1071/rd18352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/06/2018] [Indexed: 01/02/2023] Open
Abstract
Bovine invitro fertilisation technology has been widely exploited in commercial settings. The majority of invitro-derived cattle embryos are transferred into recipient cows as recently collected (i.e. 'fresh') embryos due to the lack of a reliable cryopreservation method that results in favourable pregnancy rates following transfer of thawed embryos. This is a primary reason for the poor industry uptake of this extreme temperature freezing process. Numerous investigations into vitrification have revealed the importance of rapid cooling and warming rates, enhancing embryo viability after cryopreservation compared with conventional slow freezing. Those studies spawned a considerable assortment of cryovessels and diversity of procedures, delivering variable rates of success, which makes performing vitrification consistently a practical challenge. Hence, further research is required in order to both optimise and standardise vitrification methodology and to design a cryovessel that enables direct transfer of vitrified embryos to recipients after warming. In parallel with improvements in vitrification, it is important to continue to raise the quality of invitro-derived cattle embryos through modifications in laboratory culture techniques. The twin goals of methodology refinement and standardisation, leading to embryo quality enhancement, are each imperative if invitro fertilisation technology is to be adopted in the field.
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Affiliation(s)
- V H Do
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Qld 4702, Australia
| | - S Catt
- Education Program in Reproduction and Development, Department of Obstetrics and Gynaecology, Monash University, Clayton, Vic. 3168, Australia
| | - J E Kinder
- Department of Animal Sciences, Ohio State University, OH 43210, USA
| | - S Walton
- Australian Reproductive Technologies, Mt Chalmers, Qld 4702, Australia
| | - A W Taylor-Robinson
- School of Health, Medical and Applied Sciences, Central Queensland University, Brisbane, Qld 4000, Australia
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8
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The impact of using newborn bovine serum as fetal calf serum substitute in the in vitro bovine embryos production system. Porto Biomed J 2018; 3:e3. [PMID: 31595239 PMCID: PMC6726305 DOI: 10.1016/j.pbj.0000000000000003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 05/04/2018] [Indexed: 11/24/2022] Open
Abstract
This study was conducted to assess the effects of addition of 10% newborn bovine serum (NBS) in the maturation and culture media of bovine system on oocytes maturation and developed morula and blastocyst rates. For this purpose, 10% NBS was added to in vitro maturation (IVM) medium alone (Experiment I), in vitro culture (IVC) (Experiment II), and in IVM + IVC (Experiment III). In vitro bovine oocytes maturation and developmental rates of bovine embryos were then compared with control group where the basal maturation or culture media were supplemented with 10% fetal calf serum (FCS). Results revealed that maturation, cleavage, morula, and blastocyst formation rates of in vitro fertilized embryos were not significantly different in NBS and control groups in the 3 experiments. In conclusion, NBS is an efficient macromolecule in bovine system when added either to IVM or to IVC or to both stages. Thus, NBS could provide cheaper and more available treatment to be used as FCS substitute in the IVC system of bovines.
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Abdel-Gawa E, Abdel-Hali B, Helmy N, Badr A. Effect of Cryoprotective Solutions, Ethylene Glycol, Dimethyle-sulfoxide and Ficoll 70 with Different Combination Ratios on Vitrification of Bovine Oocytes and Embryos Produced in vitro. ACTA ACUST UNITED AC 2016. [DOI: 10.3923/ajava.2016.608.619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Developmental competence and cryotolerance of caprine parthenogenetic embryos cultured in chemically defined media. Theriogenology 2016; 86:596-603. [DOI: 10.1016/j.theriogenology.2016.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 02/10/2016] [Accepted: 02/17/2016] [Indexed: 01/13/2023]
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Vargas Reyes JN, Chacón Jaramillo L. Cryopreservation method and composition of the vitrification solution affect viability of in vitro bovine embryos. REV COLOMB CIENC PEC 2016. [DOI: 10.17533/udea.rccp.v29n2a06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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An L, Ling PP, Zhu X, Liu Y, Zhang F, Ma X, Xu B, Wang Y, Du Z, Yang L, Xue F, Bella A, Presicce GA, Du F. Successful Vitrification ofIn vivoEmbryos Collected from Superovulated Japanese Black Cattle (Wagyu). Reprod Domest Anim 2016; 51:255-61. [DOI: 10.1111/rda.12674] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 01/14/2016] [Indexed: 11/30/2022]
Affiliation(s)
- L An
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - PP Ling
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - X Zhu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - Y Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - F Zhang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - X Ma
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - B Xu
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - Y Wang
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - Z Du
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - L Yang
- Lannuo Biotechnologies Wuxi Inc.; Wuxi China
| | - F Xue
- Renova Life Inc.; College Park MA USA
| | - A Bella
- Istituto Superiore di Sanità; Rome Italy
| | | | - F Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology; College of Life Sciences; Nanjing Normal University; Nanjing China
- Renova Life Inc.; College Park MA USA
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Sanches BV, Lunardelli PA, Tannura JH, Cardoso BL, Pereira MHC, Gaitkoski D, Basso AC, Arnold DR, Seneda MM. A new direct transfer protocol for cryopreserved IVF embryos. Theriogenology 2015; 85:1147-51. [PMID: 26739533 DOI: 10.1016/j.theriogenology.2015.11.029] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/25/2015] [Accepted: 11/30/2015] [Indexed: 11/27/2022]
Abstract
The global demand for in vitro-produced (IVP) embryos of determined sex has greatly increased over the last decade. Efficient protocols for the direct transfer of IVP embryos are lacking. This study aimed to compare the pregnancy rates for fresh, vitrified, or frozen/directly transferred IVP dairy cow embryos. Oocytes (n = 3171) recovered by ovum pickup (n = 112) from Girolando (Holstein-Gir) females (n = 36) were selected and submitted to IVM for 24 hours at 38.5 °C with 5% CO2 in air with saturated humidity. In vitro fertilization was performed with the thawed, sexed semen from 5 Holstein bulls. After IVF, presumptive zygotes were denuded and cultured for 7 days under the same IVM and IVF conditions of temperature and humidity, except with 5% CO2 and 5% O2. Grade I blastocysts were randomly assigned for either the transferred fresh, vitrified/thawing, or frozen/directly embryo transfer into previously synchronized recipient females. Conception rates were analyzed by binomial logistic regression, and a probability level of P < 0.05 was considered significant. The conception rates were 51.35 ± 1.87% (133/259) for the fresh embryos, 35.89 ± 3.87% (84/234) for the vitrified embryos, and 40.19 ± 4.65% (125/311) for the frozen directly transferred embryos. These data demonstrate that IVP embryos with sexed semen could be directly transferred into recipient cows with similar conception rates to vitrified embryos. The comparison found that the use of frozen embryos in direct transfer provides easier logistics and a more practical approach for the transfer of IVP embryos on dairy farms.
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Affiliation(s)
| | - Paula Alvares Lunardelli
- Laboratory of Animal Reproduction, State University of Londrina (UEL), Department of Veterinary Clinics (DCV), CCA, Londrina, Paraná, Brazil
| | | | | | | | | | | | | | - Marcelo Marcondes Seneda
- Laboratory of Animal Reproduction, State University of Londrina (UEL), Department of Veterinary Clinics (DCV), CCA, Londrina, Paraná, Brazil.
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Mori M, Kuwano T, Kamori T, Isozaki Y, Nishihara T, Yamauchi N, Hattori MA. Effect of ATP-binding cassette subfamily B member 1 on bovine blastocyst implantation. Theriogenology 2014; 81:683-8. [PMID: 24411494 DOI: 10.1016/j.theriogenology.2013.11.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 11/26/2013] [Accepted: 11/30/2013] [Indexed: 01/17/2023]
Abstract
The ATP-binding cassette subfamily B member 1 (ABCB1) is an efflux transporter that excretes xenobiotics and waste matter. High expression of ABCB1 induced by forskolin (FSK) and rifampicin (RIF) in the bovine blastocysts reportedly improves the cellular quality. In the present study, interferon-α, similar to FSK and RIF, was highly potent in inducing the expression of ABCB1 in the bovine blastocysts but did not exhibit an additive effect with FSK and RIF. Bovine blastocysts stimulated by the combined treatment with FSK, RIF, and interferon-α to express high levels of ABCB1 displayed better freezing resistance as indicated by higher cell numbers in post thawing cultures. On transfer to recipients, such embryos established pregnancies with significantly higher frequencies in repeat breeder cows rather than normal ones.
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Affiliation(s)
- M Mori
- Department of Animal Production, Fukuoka Agricultural Research Center, Chikushino, Fukuoka, Japan; Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Fukuoka, Fukuoka, Japan.
| | - T Kuwano
- Embryo Transfer Section, Veterinary Clinic Center of Nosai Chikugo River Regions, Asakura, Fukuoka, Japan
| | - T Kamori
- Department of Animal Production, Fukuoka Agricultural Research Center, Chikushino, Fukuoka, Japan
| | - Y Isozaki
- Department of Animal Production, Fukuoka Agricultural Research Center, Chikushino, Fukuoka, Japan
| | - T Nishihara
- Embryo Transfer Section, Veterinary Clinic Center of Nosai Chikugo River Regions, Asakura, Fukuoka, Japan
| | - N Yamauchi
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Fukuoka, Fukuoka, Japan
| | - M-A Hattori
- Department of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Fukuoka, Fukuoka, Japan
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Mori M, Kasa S, Isozaki Y, Kamori T, Yamaguchi S, Ueda S, Kuwano T, Eguchi M, Isayama K, Nishimura S, Tabata S, Yamauchi N, Hattori MA. Improvement of the cellular quality of cryopreserved bovine blastocysts accompanied by enhancement of the ATP-binding cassette sub-family B member 1 expression. Reprod Toxicol 2013; 35:17-24. [DOI: 10.1016/j.reprotox.2012.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 10/23/2012] [Accepted: 11/07/2012] [Indexed: 02/03/2023]
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Park JE, Oh HJ, Hong SG, Jang G, Kim MK, Lee BC. Effects of activin A on the in vitro development and mRNA expression of bovine embryos cultured in chemically-defined two-step culture medium. Reprod Domest Anim 2008; 45:585-93. [PMID: 19090825 DOI: 10.1111/j.1439-0531.2008.01306.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The purpose of the present study was to evaluate the effects of activin A on the developmental competence of in vitro fertilized (IVF) bovine embryos derived from a two-step defined culture system (C1/C2 medium) during the early or later stages of embryo development. To evaluate the effects of activin A on transcriptional levels, we analysed genes related to blastocyst hatching and implantation and to activin signalling pathway in IVF embryos. Cumulus-oocyte complexes were matured for 22 h and fertilized in vitro. Presumptive zygotes were cultured in the presence or absence of activin A during early (0-120 h, C1) or later (120-192 h, C2) stages. Although the developmental competence of embryos cultured with activin A in C1 medium was not significantly different from their corresponding controls, development to blastocysts (22.4% vs 34.7%; p < 0.05) and the blastocyst hatching rate (9.3% vs 22.4%; p < 0.05) in C2 medium supplemented with 100 ng/ml activin A were significantly higher than in the control group. To evaluate the effect of activin A on transcription, the relative expression levels of genes related to blastocyst hatching and implantation (Na/K-ATPase, E-cad and Glut-1) as well as activin signalling pathway (ActRII, ActRIIB and Smad2) were analysed. Compared to control medium, gene expression of Na/K-ATPase, E-cad, Glut-1, ActRII and ActRIIB was increased in medium supplemented with activin A. In conclusion, this study suggests that activin A, during the later stage of in vitro bovine embryo development, can enhance in vitro development of embryos by increasing hatching rates and affecting expression levels of genes related to hatching and implantation in defined culture medium.
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Affiliation(s)
- J E Park
- Department of Theriogenology and Biotechnology, SeoulNational University, Seoul, Korea
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