Academic literature on the topic 'Gastrulation'

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Journal articles on the topic "Gastrulation"

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Hue, Isabelle. "Determinant molecular markers for peri-gastrulating bovine embryo development." Reproduction, Fertility and Development 28, no. 2 (2016): 51. http://dx.doi.org/10.1071/rd15355.

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Peri-gastrulation defines the time frame between blastocyst formation and implantation that also corresponds in cattle to elongation, pregnancy recognition and uterine secretion. Optimally, this developmental window prepares the conceptus for implantation, placenta formation and fetal development. However, this is a highly sensitive period, as evidenced by the incidence of embryo loss or early post-implantation mortality after AI, embryo transfer or somatic cell nuclear transfer. Elongation markers have often been used within this time frame to assess developmental defects or delays, originati
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Kanatsu, M., and S. I. Nishikawa. "In vitro analysis of epiblast tissue potency for hematopoietic cell differentiation." Development 122, no. 3 (1996): 823–30. http://dx.doi.org/10.1242/dev.122.3.823.

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In murine embryogenesis, all cells that will constitute the embryonic structures originate from the epiblast (primitive ectoderm) tissue, the epithelial cell sheet of the gastrulating embryo. The cells of this tissue are totipotent at the beginning of gastrulation, but at the end of this period are specified to particular cell lineages. Thus, it is likely that during murine gastrulation, the potency of epiblast cells that were originally totipotent becomes restricted as development progresses. However, the mechanisms of this process are unknown. We have investigated this process in vitro, focu
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McClay, David R. "Gastrulation." Current Opinion in Genetics & Development 1, no. 2 (1991): 191–95. http://dx.doi.org/10.1016/s0959-437x(05)80069-3.

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Kim, S. H., A. Yamamoto, T. Bouwmeester, E. Agius, and E. M. Robertis. "The role of paraxial protocadherin in selective adhesion and cell movements of the mesoderm during Xenopus gastrulation." Development 125, no. 23 (1998): 4681–90. http://dx.doi.org/10.1242/dev.125.23.4681.

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Paraxial Protocadherin (PAPC) encodes a transmembrane protein expressed initially in Spemann's organizer and then in paraxial mesoderm. Together with another member of the protocadherin family, Axial Protocadherin (AXPC), it subdivides gastrulating mesoderm into paraxial and axial domains. PAPC has potent homotypic cell adhesion activity in cell dissociation and reaggregation assays. Gain- and loss-of-function microinjection studies indicate that PAPC plays an important role in the convergence and extension movements that drive Xenopus gastrulation. Thus, PAPC is not only an adhesion molecule
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Andries, L., C. Vanroelen, J. Van Hoof, and L. Vakaet. "Inhibition of cell spreading on the band of extracellular fibres in early chick and quail embryos." Journal of Cell Science 74, no. 1 (1985): 37–50. http://dx.doi.org/10.1242/jcs.74.1.37.

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The ventral surface of the upper layer shows a band of extracellular fibrils around the anterior and lateral border of the area pellucida during gastrulation of the chick embryo. Using scanning electron microscopy, we found that this disposition is correlated with the motility of the middle-layer cells of gastrulating chick and quail embryos. Outside the fibrous band, single middle-layer cells and a sheet of mesoblast cells were spread out and possessed lamellae. Single cells on the fibrous band did not form lamellae. The same cell behaviour was obtained with the explants of deep layer on the
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Solnica-Krezel, L. "Unfolding gastrulation." Development 131, no. 23 (2004): 5767–69. http://dx.doi.org/10.1242/dev.01518.

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Stern, Claudio D. "Vertebrate gastrulation." Current Opinion in Genetics & Development 2, no. 4 (1992): 556–61. http://dx.doi.org/10.1016/s0959-437x(05)80171-6.

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Leptin, Maria. "Introduction: Gastrulation." Seminars in Developmental Biology 5, no. 2 (1994): 67–68. http://dx.doi.org/10.1006/sedb.1994.1009.

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Huang, Xiao, Liyue Zhang, Shanshan Yang, Yongpu Zhang, Mingjiang Wu, and Peichao Chen. "Hes5.9 Coordinate FGF and Notch Signaling to Modulate Gastrulation via Regulating Cell Fate Specification and Cell Migration in Xenopus tropicalis." Genes 11, no. 11 (2020): 1363. http://dx.doi.org/10.3390/genes11111363.

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Gastrulation drives the establishment of three germ layers and embryonic axes during frog embryonic development. Mesodermal cell fate specification and morphogenetic movements are vital factors coordinating gastrulation, which are regulated by numerous signaling pathways, such as the Wnt (Wingless/Integrated), Notch, and FGF (Fibroblast growth factor) pathways. However, the coordination of the Notch and FGF signaling pathways during gastrulation remains unclear. We identified a novel helix–loop–helix DNA binding domain gene (Hes5.9), which was regulated by the FGF and Notch signaling pathways
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Smith, J. C., and J. E. Howard. "Mesoderm-inducing factors and the control of gastrulation." Development 116, Supplement (1992): 127–36. http://dx.doi.org/10.1242/dev.116.supplement.127.

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One of the reasons that we know so little about the control of vertebrate gastrulation is that there are very few systems available in which the process can be studied in vitro. In this paper, we suggest that one suitable system might be provided by the use of mesoderm-inducing factors. In amphibian embryos such as Xenopus laevis, gastrulation is driven by cells of the mesoderm, and the mesoderm itself arises through an inductive interaction in which cells of the vegetal hemisphere of the embryo emit a signal which acts on overlying equatorial cells. Several factors have recently been discover
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Dissertations / Theses on the topic "Gastrulation"

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Bobbs, Alexander Sebastian. "FGF Signaling During Gastrulation and Cardiogenesis." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/265335.

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An early event in animal development is the formation of the three primary germ layers that define the body plan. During gastrulation, cells migrate through the primitive streak of the embryo and undergo changes in morphology and gene expression, thus creating the mesodermal and endodermal cell layers. Gastrulation requires expression of Fibroblast Growth Factor (FGF), Wnt, and Platelet-Derived Growth Factor (PDGF). Embryos treated with FGF inhibitors fail to gastrulate, as cell migration is completely halted. During gastrulation, 44 microRNAs are expressed in the primitive streak of G. gallus
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Nie, Shuyi. "Regulation of vertebrate gastrulation by ErbB signaling." Thesis, Birmingham, Ala. : University of Alabama at Birmingham, 2007. http://www.mhsl.uab.edu/dt/2007p/nie.pdf.

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Pouille, Philippe-Alexandre. "Biomécanique de la gastrulation chez Drosophila Melanogaster." Paris 7, 2009. http://www.theses.fr/2009PA077048.

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L'embryogenèse implique les réseaux d'interaction de gènes, la différenciation épigénétique et les cascades biochimiques, mais aussi les propriétés physiques des tissus, afin de contrôler précisément les changements morphologiques. Le modèle animal est Drosophila Melanogaster] l'événement morphogénétique étudié est l'invagination du mésoderme ventral lors de la gastrulation, qui se déroule en deux étapes principales : une phase lente de constriction stochastique des apex suivie d'une phase rapide de contraction globale. La thèse analyse les composants biomécaniques de l'embryon précoce et la d
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Wadsworth, Richard Lee. "The Role of SRGAP2 in Vertebrate Gastrulation." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/420865.

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Biology<br>Ph.D.<br>During vertebrate gastrulation, an elaborate series of cellular motility events occur that define the three germ layers, and establishes the primary body axis. While it is known that non-canonical Wnt signaling plays a crucial role during this period of development, a complete picture of the molecular mechanisms controlling this pathway has yet to be established. Previous studies has shown that one essential component of the pathway linking the Wnt ligands to the cytoskeletal changes that occur during vertebrate development is Dishevelled-associated activator of morphogenes
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Link, Vinzenz. "Identification of proteins controlling gastrulation movements by a proteomic approach in zebrafish." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2006. http://nbn-resolving.de/urn:nbn:de:swb:14-1145519075954-75369.

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During vertebrate gastrulation, a well-orchestrated series of cell movements leads to the formation of the three germ layers: ectoderm, mesoderm and endoderm. In zebrafish, a model organism for vertebrate development, the mesendodermal progenitor cells separate from the ectodermal cells and migrate towards the animal pole. To identify proteins controlling these processes, I used a comparative proteomic approach following two alternative strategies: (1) Based on the notion that Wnt11 regulates cell movement and morphology during gastrulation independent of transcriptional regulation, I performe
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Ulrich, Florian. "Regulation of Zebrafish Gastrulation Movements by slb/wnt11." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2005. http://nbn-resolving.de/urn:nbn:de:swb:14-1125651469323-78929.

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During zebrafish gastrulation, highly coordinated cellular rearrangements lead to the formation of the three germ layers, ectoderm, mesoderm and endoderm. Recent studies have identified silberblick (slb/wnt11) as a key molecule that regulates gastrulation movement through a conserved pathway, which shares significant similarity with a signalling pathway that establishes epithelial planar cell polarity (PCP) in Drosophila (Heisenberg et al., 2000; Veeman et al., 2003), suggesting a role for cell polarity in regulating gastrulation movements. However, the cellular and molecular mechanisms by whi
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Gerstner, Norman. "Endocytic Modulation of Developmental Signaling during Zebrafish Gastrulation." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-156636.

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Biological information processing in living systems like cells, tissues and organs critically depends on the physical interactions of molecular signaling components in time and space. How endocytic transport of signaling molecules contributes to the regulation of developmental signaling in the complex in vivo environment of a developing organism is not well understood. In a previously performed genome-wide screen on endocytosis, several genes have been identified, that selectively regulate transport of signaling molecules to different types of endosomes, without disrupting endocytosis. My Ph
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Solimena, Michele, Jakob Suckale, Olivia Wendling, et al. "PTBP1 Is Required for Embryonic Development before Gastrulation." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-191525.

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Polypyrimidine-tract binding protein 1 (PTBP1) is an important cellular regulator of messenger RNAs influencing the alternative splicing profile of a cell as well as its mRNA stability, location and translation. In addition, it is diverted by some viruses to facilitate their replication. Here, we used a novel PTBP1 knockout mouse to analyse the tissue expression pattern of PTBP1 as well as the effect of its complete removal during development. We found evidence of strong PTBP1 expression in embryonic stem cells and throughout embryonic development, especially in the developing brain and spinal
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Moly, Pricila K., James R. Cooley, Sebastian L. Zeltzer, Tatiana A. Yatskievych, and Parker B. Antin. "Gastrulation EMT Is Independent of P-Cadherin Downregulation." Public Library of Science, 2016. http://hdl.handle.net/10150/614679.

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Epithelial-mesenchymal transition (EMT) is an evolutionarily conserved process during which cells lose epithelial characteristics and gain a migratory phenotype. Although downregulation of epithelial cadherins by Snail and other transcriptional repressors is generally considered a prerequisite for EMT, recent studies have challenged this view. Here we investigate the relationship between E-cadherin and P-cadherin expression and localization, Snail function and EMT during gastrulation in chicken embryos. Expression analyses show that while E-cadherin transcripts are detected in the epiblast but
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Solimena, Michele, Jakob Suckale, Olivia Wendling, et al. "PTBP1 Is Required for Embryonic Development before Gastrulation." Public Library of Science, 2011. https://tud.qucosa.de/id/qucosa%3A29128.

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Polypyrimidine-tract binding protein 1 (PTBP1) is an important cellular regulator of messenger RNAs influencing the alternative splicing profile of a cell as well as its mRNA stability, location and translation. In addition, it is diverted by some viruses to facilitate their replication. Here, we used a novel PTBP1 knockout mouse to analyse the tissue expression pattern of PTBP1 as well as the effect of its complete removal during development. We found evidence of strong PTBP1 expression in embryonic stem cells and throughout embryonic development, especially in the developing brain and spinal
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Books on the topic "Gastrulation"

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Keller, Ray, Wallis H. Clark, and Frederick Griffin, eds. Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8.

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Bodega Marine Science Colloquium on Gastrulation: Movements, Patterns, and Molecules (3rd 1990 Bodega Bay, Calif.). Gastrulation: Movements, patterns, and molecules. Plenum Press, 1991.

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Frumkin, Ayala. Ofyon ha-mivneh ṿeha-totsar ha-ḥelvboni shel ha-gen baʻal homeʼo-boḳs mi-tarnegolot, CdxA. ḥ. mo. l., 1992.

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Concepcion, Daniel. The roles of T and Tbx6 during gastrulation and determination of left/right asymmetry. [publisher not identified], 2013.

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D, Stern C., Ingham Phil W, and British Society for Developmental Biology. Meeting, eds. Gastrulation: Papers presented at a meeting of the British Society for Development Biology at the University of Sussex, April 1992. Company of Biologists, 1992.

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Klinowska, Teresa Caroline Maria. The emergence and migration of primitive streak mesoderm during gastrulationin the mouse. University of Manchester, 1994.

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Craig, Gavin Michael. The identification and characterisation of centrosome associated kinase (Cenk), a novel serine/threonine protein kinase expressed in gastrulating mouse embryos. typescript, 1999.

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Solnica-Krezel, Liliana. Gastrulation. Elsevier Science & Technology, 2020.

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Hardin, Jefferson. Gastrulation. University of Cambridge ESOL Examinations, 2004.

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Solnica-Krezel, Liliana. Gastrulation. Elsevier Science & Technology Books, 2020.

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Book chapters on the topic "Gastrulation"

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Schoenwolf, Gary C. "Cell Movements in the Epiblast During Gastrulation and Neurulation in Avian Embryos." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_1.

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Boucaut, Jean-Claude, Thierry Darribère, De Li Shi, Jean-Francois Riou, Kurt E. Johnson, and Michel Delarue. "Amphibian Gastrulation: The Molecular Bases of Mesodermal Cell Migration in Urodele Embryos." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_10.

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DeSimone, Douglas W., Jim C. Smith, James E. Howard, David G. Ransom, and Karen Symes. "The Expression of Fibronectins and Integrins During Mesodermal Induction and Gastrulation in Xenopus." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_11.

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Leptin, Maria. "Mechanics and Genetics of Cell Shape Changes during Drosophila Ventral Furrow Formation." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_12.

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Wieschaus, Eric, Dari Sweeton, and Michael Costa. "Convergence and Extension during Germband Elongation in Drosophila Embryos." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_13.

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Jeffery, William R. "Ultraviolet-Sensitive Determinants of Gastrulation and Axis Development in the Ascidian Embryo." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_14.

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Raff, Rudolf A., Jonathan J. Henry, and Gregory A. Wray. "Rapid Evolution of Early Development: Reorganization of Early Morphogenetic Processes in a Direct-Developing Sea Urchin." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_15.

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Wilt, Fred H., Nikolaos C. George, and Oded Khaner. "Sea Urchin Micromeres, Mesenchyme, and Morphogenesis." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_16.

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Ettensohn, Charles A. "Primary Mesenchyme cell Migration in the Sea Urchin Embryo." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_17.

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Solursh, Michael, and Mary Constance Lane. "Cell-Extracellular Matrix Interactions During Primary Mesenchyme Formation in the Sea Urchin Embryo." In Gastrulation. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6027-8_18.

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Conference papers on the topic "Gastrulation"

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Owen, Drew, and Evan Zamir. "The Role of Actomyosin Contractility During Early Avian Gastrulation." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19574.

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Actin-myosin contraction has been shown to play a major role in early morphogenetic movements in Drosophila (fly) and Xenopus (frog) [1,2]. However, the specific role of actomyosin contractility in amniote embryos (reptiles, birds, and mammals) during primitive streak (PS) formation, the “organizing center” for gastrulation (formation of three primary germ layers), is not known. Current theories regarding primitive streak formation in higher order amniotes center around cell-cell intercalation or chemotactic cell movement [3,4]. We hypothesize that contraction via actin-myosin (AM) filaments i
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Zamir, Evan A., Brenda J. Rongish, and Charles D. Little. "Dynamic Movement of Sub-Epiblastic ECM During Primitive Streak Formation." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-189864.

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A well known “Polonaise” pattern of epiblast cell movements accompanies formation of the amniote primitive streak (PS), which is the organizing center for gastrulation. Although the movements observed in classical (text book) and modern studies appear similar, the biophysical mechanisms driving these movements are unknown. In comparison to studies of dynamic cellular movements during PS formation, and more generally, gastrulation, there is a relative paucity of data regarding movement of the extracellular matrix (ECM) lying adjacent to the ventral surface of the epiblast. Electron microscopy a
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Henkels, Julia A., and Evan A. Zamir. "A Novel Biomimetic Model for Studying Mechanics of Embryonic Morphogenesis and Differentiation." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19608.

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Before the explosion of genetics research in the last century, embryonic development was largely studied from a mechanical perspective. Paired with genetic advances in understanding developmental signaling pathways and induction mechanisms, an important goal for understanding morphogenesis is to discover how the genome codes for changes in the mechanical movements of the embryonic cells. After formation of the zygote, a phase of rapid mitotic cell division is followed by epithelialization resulting in a cohesive sheet of cells termed the epiblast. During the next major phase of triploblastic d
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Tayyab, M., A. Lontos, E. Promayon, and J. Demongeot. "Modelling and Image Processing of Constriction and Proliferation in the Gastrulation Process of Drosophila melanogaster." In 2011 IEEE Workshops of International Conference on Advanced Information Networking and Applications (WAINA). IEEE, 2011. http://dx.doi.org/10.1109/waina.2011.152.

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Caraguel, Flavien, Muhammad Tayyab, Françoise Giroud, and Jacques Demongeot. "Evolution of the Genetic Regulatory Networks: The Example of the Cell Cycle Control Network From Gastrulation Modelling to Apocatagenesis." In 2010 IEEE 24th International Conference on Advanced Information Networking and Applications Workshops. IEEE, 2010. http://dx.doi.org/10.1109/waina.2010.82.

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Varner, Victor D., and Larry A. Taber. "Not Just Inductive: A Critical Mechanical Role for the Endoderm During Heart Tube Assembly." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80621.

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The heart is the first functioning organ to form during development. Similar to other organ primordia, the embryonic heart forms as a simple tube — in this case, a straight muscle-wrapped tube situated on the ventral side of the embryo. During gastrulation, the cardiac progenitors reside in the lateral plate mesoderm but maintain close contact with the underlying endoderm. In amniotes, these bilateral heart fields are initially organized as a pair of flat epithelia that move toward the embryonic midline and fuse above the anterior intestinal portal (AIP) to form the heart tube. This medial mot
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Nerurkar, Nandan L., and Clifford J. Tabin. "Cell Velocity Gradients Underlie Early Morphogenesis of the Avian Gut Tube." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80898.

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At the end of gastrulation, the endoderm forms the ventral surface of the developing embryo. Subsequently, through a series of poorly understood morphogenetic events, the initially flat endoderm is transformed into the gut tube, a cylindrical structure that gives rise to the epithelial lining of the entire respiratory and gastrointestinal tracts. At present there is no mechanistic understanding of how the endoderm is transformed from a planar sheet to a simple tube. In avian and mammalian species, formation of the gut tube begins with two invaginations at the anterior and posterior poles of th
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Половинкина, М. А., В. П. Осипова, Е. Н. Пономарева, К. В. Кудрявцев, and А. В. Великородов. "INFLUENCE OF NEW PHENOLIC DERIVATIVES ON FISH-BREEDING PARAMETERS OF FERTILIZED STERLET CAVIAR." In DEVELOPMENT AND MODERN PROBLEMS OF AQUACULTURE. ООО "ДГТУ-Принт" Адресс полиграфического предприятия 344003 пл Гагарина, зд. 1, 2023. http://dx.doi.org/10.23947/aquaculture.2023.94-97.

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The effect of shielded phenol derivatives in comparison with the water-soluble analog of vitamin E – Trolox, on the activity of sterlet sperm and on the fish-breeding indicators of fertilized sterlet eggs before the cryopreservation process was studied in this work. A positive effect of (L)-1-(2-((1-hydroxyphenyl)thio)acetin)pyrrolidine-2-carboxylic acid on sperm activity indicators has been established, which is expressed in an increase in the proportion of living cells and their lifetime. Evaluation of fish-breeding indicators of sterlet reproductive caviar indicates a greater survival rate
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Kim, YongTae, Sagar D. Joshi, Philip R. LeDuc, Lance A. Davidson, and William C. Messner. "Probing Multicellular Dynamics in Xenopus Laevis Embryonic Development Using a Mechanical Engineering Based Microfluidic Feedback Approach." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19319.

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Spatial and temporal regulation of chemical environments in and around cells or tissues for long time periods is important to understand multicellular signaling since the responses to chemical factors control the resulting coordinated events in development. Although progress has been made in command of single cell environments, both long-term and high-speed control of multicellular chemical environments in development is still challenging. We have developed a mechanical engineering based microfluidic feedback approach that allows long-term and high-speed manipulation of a laminar flow interfac
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Joshi, Sagar D., and Lance A. Davidson. "Remote Control of Apical Epithelial Sheet Contraction by Laser Ablation or Nano-Perfusion: Acute Stimulus Triggers Rapid Remodeling of F-Actin Network in Apical Cortex." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-204904.

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Apical contraction is the major tissue movement during remodeling of epithelial sheets in development. During apical contraction, groups of cells narrow their apices to form bottle-shaped structures, driving events such as sea-urchin gastrulation [1], Drosophila ventral-furrow formation, vertebrate neurulation and wound healing [2]. Tissue-folding events such as invagination, ingression and involution involve this tissue movement in which cells actively build “rifts” and “tubes”. Epithelial cells integrate genetic information, mechanical signals, and biochemical gradients to build these struct
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Reports on the topic "Gastrulation"

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Forsman-Earl, Cynthia. Twisted Gastrulation as a BMP Modulator during Mammary Gland Development and Tumorigenesis. Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada610794.

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Forsman-Earl, Cynthia. Twisted Gastrulation as a BMP Modulator During Mammary Gland Development and Tumorigenesis. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada586659.

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