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Journal articles on the topic 'Bovine embryonic'

Author: Grafiati

Published: 20 February 2025

Last updated: 31 July 2025

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1

Toralová, Tereza, Veronika Benešová, Kateřina Vodičková Kepková, Petr Vodička, Andrej Šušor, and Jiří Kaňka. "Bovine preimplantation embryos with silenced nucleophosmin mRNA are able to develop until the blastocyst stage." REPRODUCTION 144, no. 3 (2012): 349–59. http://dx.doi.org/10.1530/rep-12-0033.

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This study was conducted to investigate the effect of silencing nucleophosmin in the development of in vitro-produced bovine embryos. Nucleophosmin is an abundant multifunctional nucleolar phosphoprotein that participates, for example, in ribosome biogenesis or centrosome duplication control. We showed that although the transcription of embryonic nucleophosmin started already at late eight-cell stage, maternal protein was stored throughout the whole preimplantation development and was sufficient for the progression to the blastocyst stage. At the beginning of embryogenesis, translation occurs

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Fu, Yao, Jia-Jun Xu, Xu-Lei Sun, et al. "Function of JARID2 in bovines during early embryonic development." PeerJ 5 (December 21, 2017): e4189. http://dx.doi.org/10.7717/peerj.4189.

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Histone lysine modifications are important epigenetic modifications in early embryonic development. JARID2, which is a member of the jumonji demethylase protein family, is a regulator of early embryonic development and can regulate mouse development and embryonic stem cell (ESC) differentiation by modifying histone lysines. JARID2 can affect early embryonic development by regulating the methylation level of H3K27me3, which is closely related to normal early embryonic development. To investigate the expression pattern of JARID2 and the effect of JARID2-induced H3K27 methylation in bovine oocyte

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Perera, Chalani Dilshani, Muhammad Idrees, Abdul Majid Khan та ін. "PDGFRβ Activation Induced the Bovine Embryonic Genome Activation via Enhanced NFYA Nuclear Localization". International Journal of Molecular Sciences 24, № 23 (2023): 17047. http://dx.doi.org/10.3390/ijms242317047.

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Embryonic genome activation (EGA) is a critical step during embryonic development. Several transcription factors have been identified that play major roles in initiating EGA; however, this gradual and complex mechanism still needs to be explored. In this study, we investigated the role of nuclear transcription factor Y subunit A (NFYA) in bovine EGA and bovine embryonic development and its relationship with the platelet-derived growth factor receptor-β (PDGFRβ) by using a potent selective activator (PDGF-BB) and inhibitor (CP-673451) of PDGF receptors. Activation and inhibition of PDGFRβ using

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Degrelle, Séverine A., Kim-Anh Lê Cao, Yvan Heyman, et al. "A small set of extra-embryonic genes defines a new landmark for bovine embryo staging." REPRODUCTION 141, no. 1 (2011): 79–89. http://dx.doi.org/10.1530/rep-10-0174.

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Axis specification in mouse is determined by a sequence of reciprocal interactions between embryonic and extra-embryonic tissues so that a few extra-embryonic genes appear as ‘patterning’ the embryo. Considering these interactions as essential, but lacking in most mammals the genetically driven approaches used in mouse and the corresponding patterning mutants, we examined whether a molecular signature originating from extra-embryonic tissues could relate to the developmental stage of the embryo proper and predict it. To this end, we have profiled bovine extra-embryonic tissues at peri-implanta

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Asl, M. Pashai, K. Khodadadi, M. K. Holland, N. M. Richings, and P. J. Verma. "430. Investigation of pluripotency in derived embryonic stem cell (ESC) lines." Reproduction, Fertility and Development 20, no. 9 (2008): 110. http://dx.doi.org/10.1071/srb08abs430.

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To produce autologous ESCs for a bovine model of cell therapy, we activated oocytes by calcium ionophore (CI) and 6 dimethylaminopurine (6 DMAP) and isolated ESCs from the resulting parthenotes. Parthenote ESC lines (pbESC) would also provide a valuable tool for epigenetic studies on ESCs. Five pbESC like-cell lines were expanded for 12 passages over 120 days and differentiated to form embryoid bodies by suspension culture. The pbESC lines demonstrated typical ESC morphology and expressed ESC markers including alkaline phosphate and stage-specific embryonic antigen, SSEA1 and SSAE4 asssessed b

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Wu, Shanshan, Xiaoyu Zhao, Meiling Wu, et al. "Low Expression of Mitofusin 1 Gene Leads to Mitochondrial Dysfunction and Embryonic Genome Activation Failure in Ovine-Bovine Inter-Species Cloned Embryos." International Journal of Molecular Sciences 23, no. 17 (2022): 10145. http://dx.doi.org/10.3390/ijms231710145.

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Inter-species somatic cell nuclear transfer (iSCNT) is significant in the study of biological problems such as embryonic genome activation and the mitochondrial function of embryos. Here, we used iSCNT as a model to determine whether abnormal embryo genome activation was caused by mitochondrial dysfunction. First, we found the ovine-bovine iSCNT embryos were developmentally blocked at the 8-cell stage. The reactive oxygen species level, mitochondrial membrane potential, and ATP level in ovine-bovine cloned embryos were significantly different from both bovine-bovine and IVF 8-cell stage embryo

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Speckhart, Savannah L., Mary A. Oliver, and Alan D. Ealy. "Developmental Hurdles That Can Compromise Pregnancy during the First Month of Gestation in Cattle." Animals 13, no. 11 (2023): 1760. http://dx.doi.org/10.3390/ani13111760.

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Several key developmental events are associated with early embryonic pregnancy losses in beef and dairy cows. These developmental problems are observed at a greater frequency in pregnancies generated from in-vitro-produced bovine embryos. This review describes critical problems that arise during oocyte maturation, fertilization, early embryonic development, compaction and blastulation, embryonic cell lineage specification, elongation, gastrulation, and placentation. Additionally, discussed are potential remediation strategies, but unfortunately, corrective actions are not available for several

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8

Stice, S. L. "Pluripotent bovine embryonic cell lines direct embryonic development following nuclear transfer." Biology of Reproduction 54, no. 1 (1996): 100–110. http://dx.doi.org/10.1095/biolreprod54.1.100.

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9

Saadeldin, Islam M., Ahmed Abdelfattah-Hassan, and Ayman Abdel-Aziz Swelum. "Feeder Cell Type Affects the Growth of In Vitro Cultured Bovine Trophoblast Cells." BioMed Research International 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/1061589.

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Trophectoderm cells are the foremost embryonic cells to differentiate with prospective stem-cell properties. In the current study, we aimed at improving the current approach for trophoblast culture by using granulosa cells as feeders. Porcine granulosa cells (PGCs) compared to the conventional mouse embryonic fibroblasts (MEFs) were used to grow trophectoderm cells from hatched bovine blastocysts. Isolated trophectoderm cells were monitored and displayed characteristic epithelial/cuboidal morphology. The isolated trophectoderm cells expressed mRNA of homeobox protein (CDX2), cytokeratin-8 (KRT

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10

Yang, Cai-Xia, Zichuan Liu, Renaud Fleurot, et al. "Heterochromatin reprogramming in rabbit embryos after fertilization, intra-, and inter-species SCNT correlates with preimplantation development." REPRODUCTION 145, no. 2 (2013): 149–59. http://dx.doi.org/10.1530/rep-11-0421.

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To investigate the embryonic genome organization upon fertilization and somatic cell nuclear transfer (SCNT), we tracked HP1β and CENP, two well-characterized protein markers of pericentric and centromeric compartments respectively, in four types of embryos produced by rabbit in vivo fertilization, rabbit parthenogenesis, rabbit-to-rabbit, and bovine-to-rabbit SCNT. In the interphase nuclei of rabbit cultured fibroblasts, centromeres and associated pericentric heterochromatin are usually isolated. Clustering into higher-order chromatin structures, such as the chromocenters seen in mouse and bo

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Arias, M. E., R. Sánchez, J. Risopatrón, L. Pérez, and R. Felmer. "Effect of sperm pretreatment with sodium hydroxide and dithiothreitol on the efficiency of bovine intracytoplasmic sperm injection." Reproduction, Fertility and Development 26, no. 6 (2014): 847. http://dx.doi.org/10.1071/rd13009.

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The efficiency of intracytoplasmic sperm injection (ICSI) in bovines is lower than in other species due, in part, to a lack of optimal conditions for its implementation; this has hindered the achievement of high rates of embryonic development and the birth of live offspring. The aim of the present study was to evaluate the effects of pretreatment of bovine spermatozoa with NaOH and dithiothreitol (DTT) on the viability, plasma membrane integrity, DNA fragmentation and in vitro developmental potential of embryos generated by ICSI. Following pretreatment of spermatozoa with 5 mM DTT for 20 min a

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Bogliotti, Yanina S., Nhi Chung, Erika E. Paulson, et al. "Transcript profiling of bovine embryos implicates specific transcription factors in the maternal-to-embryo transition." Biology of Reproduction 102, no. 3 (2019): 671–79. http://dx.doi.org/10.1093/biolre/ioz209.

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Abstract Full-grown oocytes are transcriptionally quiescent. Following maturation and fertilization, the early stages of embryonic development occur in the absence (or low levels) of transcription that results in a period of development relying on maternally derived products (e.g., mRNAs and proteins). Two critical steps occur during the transition from maternal to embryo control of development: maternal mRNA clearance and embryonic genome activation with an associated dramatic reprogramming of gene expression required for further development. By combining an RNA polymerase II inhibitor with R

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Kwon, Dae Kee, So Gun Hong, Jung Eun Park, et al. "Establishment of Bovine Embryonic Stem-Like Cells from Cloned Bovine Blastocyst." Biology of Reproduction 78, Suppl_1 (2008): 229. http://dx.doi.org/10.1093/biolreprod/78.s1.229b.

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Vallée, Maud, Isabelle Dufort, Stéphanie Desrosiers, et al. "Revealing the bovine embryo transcript profiles during early in vivo embryonic development." REPRODUCTION 138, no. 1 (2009): 95–105. http://dx.doi.org/10.1530/rep-08-0533.

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Gene expression profiling is proving to be a powerful approach for the identification of molecular mechanisms underlying complex cellular functions such as the dynamic early embryonic development. The objective of this study was to perform a transcript abundance profiling analysis of bovine early embryonic development in vivo using a bovine developmental array. The molecular description of the first week of life at the mRNA level is particularly challenging when considering the important fluctuations in RNA content that occur between developmental stages. Accounting for the different intrinsic

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15

Choi, W. J., S. J. Lee, W. W. Lee, et al. "52 IMPLANTATION OF TRANSGENIC BOVINE CLONED EMBRYOS DERIVED FROM TRANSFECTED CELLS BY PiggyBac TRANSPOSITION." Reproduction, Fertility and Development 25, no. 1 (2013): 173. http://dx.doi.org/10.1071/rdv25n1ab52.

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A gene-delivery system, PiggyBac (PB) transposition, has been applied to transgene expression in mammalian cells or animals. In this study, to produce transgenic cattle, we used PB in bovine fibroblasts and then the transfected cells were microinjected into enucleated bovine oocytes to produce embryos and offspring. For this study, 2 different fluorescence genes (GFP, transcribed by constitutive promoter and RFP, transcribed by tetracycline-dependent promoter), which were flanked by PB sequences, were transfected into the bovine fetal fibroblasts by the FuGENE transfection protocol. The develo

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16

Yang, Qi-En, Manabu Ozawa, Kun Zhang, Sally E. Johnson, and Alan D. Ealy. "The requirement for protein kinase C delta (PRKCD) during preimplantation bovine embryo development." Reproduction, Fertility and Development 28, no. 4 (2016): 482. http://dx.doi.org/10.1071/rd14160.

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Protein kinase C (PKC) delta (PRKCD) is a member of the novel PKC subfamily that regulates gene expression in bovine trophoblast cells. Additional functions for PRKCD in early embryonic development in cattle have not been fully explored. The objectives of this study were to describe the expression profile of PRKCD mRNA in bovine embryos and to examine its biological roles during bovine embryo development. Both PRKCD mRNA and protein are present throughout early embryo development and increases in mRNA abundance are evident at morula and blastocyst stages. Phosphorylation patterns are consisten

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17

KANEDA, Masahiro, Masashi TAKAHASHI, Ken-ichi YAMANAKA, et al. "Epigenetic analysis of bovine parthenogenetic embryonic fibroblasts." Journal of Reproduction and Development 63, no. 4 (2017): 365–75. http://dx.doi.org/10.1262/jrd.2017-040.

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18

ITOH, Takako, Yoshito AOYAGI, Masato KONISHI, et al. "Nuclear Transfer of Bovine Embryonic Disc Cells." Journal of Reproduction and Development 44, no. 6 (1998): j27—j32. http://dx.doi.org/10.1262/jrd.98-446j27.

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19

Mengeling, William L., and Martin J. Maaten. "Preparation of bovine embryonic spleen cell cultures." Journal of Tissue Culture Methods 11, no. 3 (1988): 135–38. http://dx.doi.org/10.1007/bf01404266.

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20

Itoh, T., Y. Aoyagi, M. Konishi, et al. "Nuclear transfer of bovine embryonic disc cells." Theriogenology 49, no. 1 (1998): 322. http://dx.doi.org/10.1016/s0093-691x(98)90675-6.

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21

Gómez, E., JN Caamaño, A. Rodríguez, C. De Frutos, N. Facal, and C. Díez. "Bovine Early Embryonic Development and Vitamin A." Reproduction in Domestic Animals 41, s2 (2006): 63–71. http://dx.doi.org/10.1111/j.1439-0531.2006.00770.x.

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22

Plante, C., D. Bousquet, P. Guay, A. K. Goff, and W. A. King. "Luteotrophic factor secreted by bovine embryonic tissue." Theriogenology 23, no. 1 (1985): 217. http://dx.doi.org/10.1016/0093-691x(85)90123-2.

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23

Memili, Erdogan, and Neal L. First. "Zygotic and embryonic gene expression in cow: a review of timing and mechanisms of early gene expression as compared with other species." Zygote 8, no. 1 (2000): 87–96. http://dx.doi.org/10.1017/s0967199400000861.

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Early embryonic development is largely dependent on maternal RNAs and proteins synthesised during oogenesis. Zygotic transcription is an essential event that occurs at a species-specific time after fertilisation. In the absence of zygotic transcription the embryo dies since it can no longer support requirements for successful embryo development. Molecular genetics of gene expression during early embryogenesis, especially in the bovine species, remain one of the unsolved questions in modern biology. Earlier studies suggested that embryonic transcription in cattle begins at the late 4-cell or 8-

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Torres, Ana Catarina, Dorota Boruszewska, Mariana Batista, et al. "Lysophosphatidic Acid Signaling in Late Cleavage and Blastocyst Stage Bovine Embryos." Mediators of Inflammation 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/678968.

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Lysophosphatidic acid (LPA) is a known cell signaling lipid mediator in reproductive tissues. In the cow, LPA is involved in luteal and early pregnancy maintenance. Here, we evaluated the presence and role of LPA in bovine early embryonic development. In relevant aspects, bovine embryos reflect more closely the scenario occurring in human embryos than the mouse model. Transcription of mRNA and protein expression of enzymes involved in LPA synthesis (ATX andcPLA2) and of LPA receptors (LPAR1–4) were detected in Days 5 and 8in vitroproduced embryos. Embryonic LPA production into culture medium w

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DiGiacomo, Ronald F., Barbara J. Deeb, Scott J. Brodie, Thomas E. Zimmerman, Eugene R. Veltkamp, and Clarence E. Chrisp. "Toxin production by Pasteurella multocida isolated from rabbits with atrophic rhinitis." American Journal of Veterinary Research 54, no. 8 (1993): 1280–86. http://dx.doi.org/10.2460/ajvr.1993.54.08.1280.

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Summary Naturally acquired turbinate atrophy in rabbits was associated with Pasteurella multocida infection. Several in vitro and in vivo studies were conducted to document toxin production from P multocida isolates and to determine the relation of toxin to atrophic rhinitis in rabbits. Ten isolates of P multocida serotype A:12 were obtained from adult New Zealand White rabbits with noninduced atrophic rhinitis. Specific-pathogen-free rabbits inoculated intranasally with isolates of P multocida developed rhinitis and turbinate atrophy. However, inoculation with filtrates of the same bacteria f

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Li, Ningxiao, Zhen Yang, Yue Su, et al. "Establishing Bovine Embryonic Stem Cells and Dissecting Their Self-Renewal Mechanisms." International Journal of Molecular Sciences 26, no. 8 (2025): 3536. https://doi.org/10.3390/ijms26083536.

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Bovine pluripotent stem cells (PSCs) hold significant potential for diverse applications in agriculture, reproductive biotechnology, and biomedical research. However, challenges persist in establishing stable bovine PSC lines and understanding the mechanisms underlying their pluripotency maintenance. Here, we derived bovine embryonic stem cells (bESCs) from Holstein cattle embryos. These cells exhibited robust differentiation capacity into three germ layers in vitro and in vivo. Transcriptome analysis revealed distinct molecular profiles compared to primed-state bESCs. Notably, bESC proliferat

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Bowen, R. A., R. P. Elsden, and G. E. Seidel. "Infection of early bovine embryos with bovine herpesvirus-1." American Journal of Veterinary Research 46, no. 5 (1985): 1095–97. https://doi.org/10.2460/ajvr.1985.46.05.1095.

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SUMMARY Recently hatched bovine embryos were exposed in vitro to 1 of 4 strains of bovine herpesvirus-1 to determine whether the viruses would replicate in these embryos and, if so, what pathologic consequences would ensue. Exposure to each of the viruses resulted in embryonic infection and death, and replication of the agents was demonstrated by electron microscopy and titration of progeny virus. There were no dramatic differences between virus strains in pathogenicity or in the ultrastructural pathologic findings of infection.

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Chang, Kai-Hsin, Angelique M. Nelson, Hua Cao, et al. "Definitive-like erythroid cells derived from human embryonic stem cells coexpress high levels of embryonic and fetal globins with little or no adult globin." Blood 108, no. 5 (2006): 1515–23. http://dx.doi.org/10.1182/blood-2005-11-011874.

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Human embryonic stem cells are a promising tool to study events associated with the earliest ontogenetic stages of hematopoiesis. We describe the generation of erythroid cells from hES (H1) by subsequent processing of cells present at early and late stages of embryoid body (EB) differentiation. Kinetics of hematopoietic marker emergence suggest that CD45+ hematopoiesis peaks at late D14EB differentiation stages, although low-level CD45- erythroid differentiation can be seen before that stage. By morphologic criteria, hES-derived erythroid cells were of definitive type, but these cells both at

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Tripurani, S. K., K. B. Lee, G. W. Smith, and J. Yao. "6 CLONING AND EXPRESSION OF BOVINE FACTOR IN THE GERMLINE ALPHA (FIGLA) IN OOCYTES AND EARLY EMBRYOS: A POTENTIAL TARGET OF microRNA-212." Reproduction, Fertility and Development 23, no. 1 (2011): 109. http://dx.doi.org/10.1071/rdv23n1ab6.

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Factor In the GermLine Alpha (FIGLA), a basic helix-loop-helix transcription factor, was first identified in regulating coordinate expression of zona pellucida genes in mice. It plays a crucial role in the formation of primordial follicles and lack of FIGLA in mice alters the expression of many oocyte specific genes that are required for fertilization and early embryonic survival. The objective of this study was to characterise the expression and regulation of bovine FIGLA during early embryogenesis. The cloned bovine FIGLA cDNA is 660 bp in length, which encodes a protein of 165 amino acids.

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Bauersachs, Stefan, Pascal Mermillod, and Carmen Almiñana. "The Oviductal Extracellular Vesicles’ RNA Cargo Regulates the Bovine Embryonic Transcriptome." International Journal of Molecular Sciences 21, no. 4 (2020): 1303. http://dx.doi.org/10.3390/ijms21041303.

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Oviductal extracellular vesicles (oEVs) are emerging as key players in the gamete/embryo–oviduct interactions that contribute to successful pregnancy. Various positive effects of oEVs on gametes and early embryos have been found in vitro. To determine whether these effects are associated with changes of embryonic gene expression, the transcriptomes of embryos supplemented with bovine fresh (FeEVs) or frozen (FoEVs) oEVs during in vitro culture compared to controls without oEVs were analyzed by low-input RNA sequencing. Analysis of RNA-seq data revealed 221 differentially expressed genes (DEGs)

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Datta, Tirtha K., Sandeep K. Rajput, Gabbine Wee, KyungBon Lee, Joseph K. Folger, and George W. Smith. "Requirement of the transcription factor USF1 in bovine oocyte and early embryonic development." REPRODUCTION 149, no. 2 (2015): 203–12. http://dx.doi.org/10.1530/rep-14-0445.

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Upstream stimulating factor 1 (USF1) is a basic helix–loop–helix transcription factor that specifically binds to E-box DNA motifs, knowncis-elements of key oocyte expressed genes essential for oocyte and early embryonic development. However, the functional and regulatory role of USF1 in bovine oocyte and embryo development is not understood. In this study, we demonstrated thatUSF1mRNA is maternal in origin and expressed in a stage specific manner during the course of oocyte maturation and preimplantation embryonic development. Immunocytochemical analysis showed detectable USF1 protein during o

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Avila-Alejandre, Alma X., Fulgencio Espejel, Esmeralda Paz-Lemus, et al. "Effect of insulin on the cell cycle of germinating maize seeds (Zea mays L.)." Seed Science Research 23, no. 1 (2013): 3–14. http://dx.doi.org/10.1017/s0960258512000281.

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AbstractDuring seed germination, metabolism is reactivated, DNA is repaired and cell division is restarted in the meristems. The mechanisms that co-ordinate cell growth and division in maize embryonic axes during germination are not well understood. However, the presence of a factor similar to IGF (insulin-like growth factor) that accelerates germination has been reported. In the present work, the regulation of the cell-cycle restart by bovine insulin [which has been demonstrated to produce similar effects as insulin-like growth factor of maize (ZmIGF) in maize seeds] was studied in germinatin

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Zhang, K., and H. Wang. "61 Expression Profiles and Functional Roles of H3.3 and HIRA in Bovine Early Embryos." Reproduction, Fertility and Development 30, no. 1 (2018): 169. http://dx.doi.org/10.1071/rdv30n1ab61.

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Early embryo death is one major reason for poor reproductive efficiency in dairy cows. In particular, ~20 to 50% of high-producing cows are subject to pregnancy loss during the first week of gestation, indicating the importance of embryonic development from fertilization to the blastocyst stage. To highlight this importance, multiple critical molecular and developmental events, including zygote reprogramming, maternal RNA decay, and embryonic genome activation, occur during bovine pre-implantation development. However, the molecular mechanisms of these events have yet to be defined. H3.3 is a

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Wang, Xue, Lili Guo, and Wenguang Zhang. "Extraction of Innate Immune Genes in Dairy Cattle and the Regulation of Their Expression in Early Embryos." Genes 15, no. 3 (2024): 372. http://dx.doi.org/10.3390/genes15030372.

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As more and more of the available genomic data have been published, several databases have been developed for deciphering early mammalian embryogenesis; however, less research has been conducted on the regulation of the expression of natural immunity genes during early embryonic development in dairy cows. To this end, we explored the regulatory mechanism of innate immunity genes at the whole-genome level. Based on comparative genomics, 1473 innate immunity genes in cattle were obtained by collecting the latest reports on human innate immunity genes and updated bovine genome data for comparison

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Vigneault, Christian, Catherine Gravel, Maud Vallée, Serge McGraw, and Marc-André Sirard. "Unveiling the bovine embryo transcriptome during the maternal-to-embryonic transition." REPRODUCTION 137, no. 2 (2009): 245–57. http://dx.doi.org/10.1530/rep-08-0079.

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Bovine early embryos are transcriptionally inactive and subsist through the initial developmental stages by the consumption of the maternal supplies provided by the oocyte until its own genome activation. In bovine, the activation of transcription occurs during the 8- to 16-cell stages and is associated with a phase called the maternal-to-embryonic transition (MET) where maternal mRNA are replaced by embryonic ones. Although the importance of the MET is well accepted, since its inhibition blocks embryonic development, very little is known about the transcripts expressed at this crucial step in

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Poppicht, F., H. Stinshoff, and C. Wrenzycki. "70 PROTEIN EXPRESSION OF THE INSULIN-LIKE GROWTH FACTOR 1 RECEPTOR DURING BOVINE PRE-IMPLANTATION EMBRYONIC DEVELOPMENT." Reproduction, Fertility and Development 26, no. 1 (2014): 149. http://dx.doi.org/10.1071/rdv26n1ab70.

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Insulin-like growth factor 1 (IGF1) is essential for regulating physiological processes such as growth and development of fetal and placental tissues (Bauer et al. 1998, Fowden 2003). During early embryonic development, IGF1 plays an important role, as it leads to a reduction of apoptosis and decreases early embryonic mortality (Block et al. 2007). The signal transduction of IGF1 is carried out by its specific binding to the membrane-embedded insulin-like growth factor 1 receptor (IGF1R). The expression of IGF1R is a potential quality marker of in vitro produced embryos (Liu et al. 1997, Yasee

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Memili, E., E. Behboodi, H. M. Meade, and Y. Echelard. "60EPIGENETIC CHARACTERISTICS OF BOVINE AND CAPRINE EMBRYOS AND DONOR CELLS USED FOR NUCLEAR TRANSFER." Reproduction, Fertility and Development 16, no. 2 (2004): 152. http://dx.doi.org/10.1071/rdv16n1ab60.

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The molecular aspects of epigenetic events taking place in nuclear transfer (NT)-derived embryos are not well defined, but DNA methylation is known to be involved. One leading hypothesis is that the significant losses that occur during both pre- and post-implantation development are in great part due to improper epigenetic reprogramming. Aims of this study were to perform comparative quantitative analyses of the overall DNA methylation of bovine (both IVF- and NT-derived) and caprine IVF-derived preimplantation embryos as well as of donor cells used for NT. Caprine IVF was performed according

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Schultz, GA, A. Hogan, AJ Watson, RM Smith, and S. Heyner. "Insulin, insulin-like growth factors and glucose transporters: temporal patterns of gene expression in early murine and bovine embryos." Reproduction, Fertility and Development 4, no. 4 (1992): 361. http://dx.doi.org/10.1071/rd9920361.

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mRNA phenotyping by the reverse transcription-polymerase chain reaction (RT-PCR) method was used to compare the patterns of expression of insulin and insulin-like growth factor (IGF) ligand and receptor genes in preimplantation bovine embryos with those established previously for preimplantation murine embryos. In the early bovine embryo, transcripts for IGF-I, IGF-II and mRNAs encoding receptors for insulin, IGF-I and IGF-II were all detectable at all embryo stages from the 1-cell zygote to the blastocyst. In the mouse, IGF-II ligand and receptor mRNAs were not expressed until the 2-cell stag

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Rodríguez-Alvarez, Lleretny, José Cox, Felipe Navarrete, et al. "Elongation and gene expression in bovine cloned embryos transferred to temporary recipients." Zygote 17, no. 4 (2009): 353–65. http://dx.doi.org/10.1017/s0967199409005486.

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SummaryElongated embryos provide a unique source of information about trophoblastic differentiation, gene expression and maternal-embryonic interactions; however they are difficult and costly to obtain, especially elongated cloned embryos. One alternative is their production in heterologous temporary recipients such as sheep and goats. We aimed to produce elongated bovine cloned embryos using heterologous transfer to temporary recipients. Day-7 cloned cattle blastocysts were transferred to the uteri of ewes and goats and recovered as elongated structures at day 17. We evaluated elongation, len

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Johnson, F. Brent, Laura B. Fenn, Thomas J. Owens, Laura J. Faucheux, and Shawn D. Blackburn. "Attachment of bovine parvovirus to sialic acids on bovine cell membranes." Journal of General Virology 85, no. 8 (2004): 2199–207. http://dx.doi.org/10.1099/vir.0.79899-0.

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Although it has previously been shown that bovine parvovirus (BPV) attaches to the sialated glycoprotein glycophorin A on erythrocytes, the nature of virus-binding moieties on mammalian nucleated cells is less clear. Buffalo lung fibroblasts (Bu), primary bovine embryonic kidney cells, Madin–Darby bovine kidney cells and bovine embryonic trachea (EBTr) cells were assessed for molecules capable of binding BPV. Competition studies were carried out on both erythrocyte and nucleated cell targets using a variety of sialated compounds and sialic acid-negative compounds. Glycophorin A was found to in

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Morovic, Martin, Matej Murin, Frantisek Strejcek, et al. "The Influence of Interspecies Somatic Cell Nuclear Transfer on Epigenetic Enzymes Transcription in Early Embryos." Macedonian Veterinary Review 39, no. 2 (2016): 209–17. http://dx.doi.org/10.1515/macvetrev-2016-0085.

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AbstractOne of the main reason for the incorrect development of embryos derived from somatic cell nuclear transfer is caused by insufficient demethylation of injected somatic chromatin to a state comparable with an early embryonic nucleus. It is already known that the epigenetic enzymes transcription in oocytes and early embryos of several species including bovine and porcine zygotes is species-dependent process and the incomplete DNA methylation correlates with the nuclear transfer failure rate in mammals. In this study the transcription of DNA methyltransferase 1 and 3a (DNMT1, DNMT3a) genes

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Berg, D. K., S. E. Beaumont, and P. L. Pfeffer. "168 miRNA LEVELS DURING BOVINE PREIMPLANTATION EMBRYONIC DEVELOPMENT." Reproduction, Fertility and Development 20, no. 1 (2008): 164. http://dx.doi.org/10.1071/rdv20n1ab168.

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MicroRNAs (miRNAs) are a class of naturally occurring non-coding RNAs that play a role in gene regulation. They are highly conserved, single-stranded RNAs, 22 nucleotides in length, that are cleaved from larger inactive hairpin precursor transcripts, and use the RNA interference-related pathways to repress their mRNA targets. They play diverse regulatory roles in cellular proliferation, morphogenesis, apoptosis, and differentiation. Maternal miRNAs are crucial for early mammalian development (Murchison et al. 2007 Genes Dev. 21, 682–693; Tang et al. 2007 Genes Dev. 21, 655–648), while sperm-bo

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Kalenberg, Christina Alexandra, and Michael Hubert Stoffel. "The embryonic development of the bovine stomach revisited." Anatomia, Histologia, Embryologia 49, no. 2 (2020): 270–80. http://dx.doi.org/10.1111/ahe.12525.

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Strelchenko, N., S. Saito, and H. Niemann. "Towards the establishment of bovine embryonic stem cells." Theriogenology 35, no. 1 (1991): 274. http://dx.doi.org/10.1016/0093-691x(91)90250-h.

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Barnes, F. L., and N. L. First. "Embryonic transcription in in vitro cultured bovine embryos." Molecular Reproduction and Development 29, no. 2 (1991): 117–23. http://dx.doi.org/10.1002/mrd.1080290205.

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Sirard, Marc-André. "How the environment affects early embryonic development." Reproduction, Fertility and Development 34, no. 2 (2022): 203. http://dx.doi.org/10.1071/rd21266.

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In the field of animal reproduction, the environment associated with gametes and embryos refers to the parents’ condition as well as conditions surrounding gametes and embryos in vivo or in vitro. This environment is now known to influence not only the functionality of the early embryo but potentially the future phenotype of the offspring. Using transcriptomic and epigenetic molecular analysis, and the bovine model, recent research has shown that both the female and the male metabolic status, for example age, can affect gene expression and gene programming in the embryo. Evidence demonstrates

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Labrecque, Rémi, and Marc-André Sirard. "Gene expression analysis of bovine blastocysts produced by parthenogenic activation or fertilisation." Reproduction, Fertility and Development 23, no. 4 (2011): 591. http://dx.doi.org/10.1071/rd10243.

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The processes underlying the very first moments of embryonic development are still not well characterised in mammals. To better define the kinetics of events taking place following fertilisation, it would be best to have perfect synchronisation of sperm entry. With fertilisation occurring during a time interval of 6 to 12 h in the same group of fertilised oocytes, this causes a major variation in the time of activation of embryonic development. Bovine parthenogenesis could potentially result in better synchronisation and, if so, would offer a better model for studying developmental competence.

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Goissis, M. D., P. J. Ross, and J. B. Cibelli. "148 EFFECTS OF Wnt3A SUPPLEMENTATION ON BOVINE BLASTOCYST CELL NUMBER AND ALLOCATION." Reproduction, Fertility and Development 22, no. 1 (2010): 232. http://dx.doi.org/10.1071/rdv22n1ab148.

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Derivation of true bovine embryonic stem cells (ESC), as defined by their capacity to form robust teratomas and/or contribute to the germ line in chimeras, has not been achieved despite several attempts. It is possible that failures to derive bonafide bovine ESC are due to the inability of bovine embryonic cells to adapt to in vitro culture conditions that favor ESC derivation. Wnt pathways are involved in pluripotency and self-renewal of mouse and human ESC. Wnt signaling is also required for implantation competence in mouse blastocysts. Given the shared developmental potential between inner

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Zhang, D., and H. M. Zhou. "64 RECONSTRUCTION OF HETEROGENEOUS EMBRYOS BY HUMAN SOMATIC CELLS AND BOVINE ENUCLEATED OOCYTES AND ISOLATION OF PUTATIVE HUMAN EMBRYONIC STEM CELL CLONES." Reproduction, Fertility and Development 20, no. 1 (2008): 113. http://dx.doi.org/10.1071/rdv20n1ab64.

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This study was undertaken to reconstruct heterogeneous nuclear-transferred embryos by using human fetal skin fibroblast cells as nuclear donor cells and the enucleated bovine oocytes as recipient cytoplasts for the purpose of investigating the feasibility of enucleated bovine oocyte cytoplasm as a means of reprogramming human somatic cell nuclei in an attempt to generate an accessible, autologous, and potentially unlimited source of totipotent human embryonic stem cells for transplantation medicine. Bovine ovaries were recovered at a local abattoir and oocytes were in vitro-matured and employe

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Zhao, Lixia, Xuefei Gao, Yuxuan Zheng, et al. "Establishment of bovine expanded potential stem cells." Proceedings of the National Academy of Sciences 118, no. 15 (2021): e2018505118. http://dx.doi.org/10.1073/pnas.2018505118.

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Embryonic stem cells (ESCs) and induced pluripotent stem cells have the potential to differentiate to all cell types of an adult individual and are useful for studying development and for translational research. However, extrapolation of mouse and human ESC knowledge to deriving stable ESC lines of domestic ungulates and large livestock species has been challenging. In contrast to ESCs that are usually established from the blastocyst, mouse expanded potential stem cells (EPSCs) are derived from four-cell and eight-cell embryos. We have recently used the EPSC approach and established stem cells

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