Vertebrate Cranial Placodes

Author : Byung-Yong Park,Jean-Pierre Saint-Jeannet
Publisher : Morgan & Claypool Publishers
Page : 93 pages
File Size : 50,6 Mb
Release : 2010
Category : Science
ISBN : 9781615041022

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Induction and Segregation of the Vertebrate Cranial Placodes by Byung-Yong Park,Jean-Pierre Saint-Jeannet Pdf

During evolution the vertebrate head has acquired a number of unique features including specialized paired sense organs and cranial sensory ganglia. These evolutionary novelties arise from discrete thickenings of the head ectoderm known as cranial placodes. They include the adenohypophyseal, olfactory, lens, trigeminal, profundal, otic, epibranchial and lateral line placodes. While distinct in the derivatives and cell types they will form, all cranial placodes originate from a common preplacodal domain surrounding the anterior neural plate. Recent evidence suggests that the induction of this pre-placodal domain and its subsequent subdivision into individual placodes with specific identities is a multi-step process. Here we describe the development of these placodes and their derivatives and summarize recent advances in the characterization of the repertoire of transcription factors underlying their development. We also review recent studies that have started to address the role of several classes of signaling molecules in placode induction and segregation, including Bone Morphogenetic Proteins, Fibroblast Growth Factors and Wnt molecules. Table of Contents: Introduction / Cranial Placodes and Their Derivatives / Molecular Identity of Cranial Placodes / Induction and Segregation of the Cranial Placodes / Conclusion / Acknowledgments / References / Author Biographies

Author : Gerhard Schlosser
Publisher : Unknown
Page : 0 pages
File Size : 52,8 Mb
Release : 2023-06-26
Category : Electronic
ISBN : 0367747782

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Development of Sensory and Neurosecretory Cell Types by Gerhard Schlosser Pdf

Most of the cranial sense organs of vertebrates arise from embryonic structures known as cranial placodes. Schlosser discusses how these primordia are established in the early embryo, how individual placodes develop, and how various placodally derived sensory and neurosecretory cell types differentiate into discrete structures.

Author : GERHARD. SCHLOSSER
Publisher : CRC Press
Page : 752 pages
File Size : 49,9 Mb
Release : 2021-04-29
Category : Electronic
ISBN : 0367748533

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Vertebrate Cranial Placodes by GERHARD. SCHLOSSER Pdf

Most of the cranial sense organs of vertebrates arise from embryonic structures known as cranial placodes. Such placodes also give rise to sensory neurons that transmit information to the brain as well as to many neurosecretory cells. This book focuses on the development of sensory and neurosecretory cell types from cranial placodes by introducing the vertebrate head with its sense organs and neurosecretory organs and providing an overview of the various cranial placodes and their derivatives, including evidence of common embryonic primordia. Schlosser discusses how these primordia are established in the early embryo and how individual placodes develop. The latter chapters explain how various placodally derived sensory and neurosecretory cell types differentiate into discrete structures.

Author : Gerhard Schlosser
Publisher : CRC Press
Page : 325 pages
File Size : 55,8 Mb
Release : 2021-06-17
Category : Science
ISBN : 9781000369137

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Evolutionary Origin of Sensory and Neurosecretory Cell Types by Gerhard Schlosser Pdf

Most vertebrate cranial sense organs arise from placodes. These placodes give rise to sensory neurons that transmit information to the brain and neurosecretory cells. This book reviews the evolutionary origin of the sensory and neurosecretory cell types. It summarizes our current understanding of vertebrate evolution, clarifies conceptual issues relating to homology and evolutionary innovation of cell types, compares the sensory and neurosecretory cell types with similar cell types in other animals, and addresses the question of how cranial placodes evolved as novel structures in vertebrates by redeploying pre-existing and sometimes evolutionarily ancient cell types.

Author : Jean-Pierre Saint-Jeannet,Lisa Taneyhill,Patrick Blader
Publisher : Frontiers Media SA
Page : 213 pages
File Size : 53,9 Mb
Release : 2021-06-16
Category : Science
ISBN : 9782889668823

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Cranial Placodes and Neural Crest Interactions in Craniofacial Development by Jean-Pierre Saint-Jeannet,Lisa Taneyhill,Patrick Blader Pdf

Author : Gerhard Schlosser
Publisher : CRC Press
Page : 305 pages
File Size : 53,5 Mb
Release : 2021-06-17
Category : Science
ISBN : 9781351667838

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Development of Sensory and Neurosecretory Cell Types by Gerhard Schlosser Pdf

Most of the cranial sense organs of vertebrates arise from embryonic structures known as cranial placodes. Such placodes also give rise to sensory neurons that transmit information to the brain as well as to many neurosecretory cells. This book focuses on the development of sensory and neurosecretory cell types from cranial placodes by introducing the vertebrate head with its sense organs and neurosecretory organs and providing an overview of the various cranial placodes and their derivatives, including evidence of common embryonic primordia. Schlosser discusses how these primordia are established in the early embryo and how individual placodes develop. The latter chapters explain how various placodally derived sensory and neurosecretory cell types differentiate into discrete structures.

Author : Zerina Johanson,Charlie Underwood,Martha Richter
Publisher : Cambridge University Press
Page : 283 pages
File Size : 47,9 Mb
Release : 2019-01-10
Category : Nature
ISBN : 9781107179448

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Evolution and Development of Fishes by Zerina Johanson,Charlie Underwood,Martha Richter Pdf

World-class palaeontologists and biologists summarise the state-of-the-art on fish evolution and development.

Author : Henry Gee
Publisher : University of Chicago Press
Page : 325 pages
File Size : 55,5 Mb
Release : 2018-07-04
Category : Science
ISBN : 9780226403199

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Across the Bridge by Henry Gee Pdf

“Addresses an important topic for biologists and zoologists about vertebrates’ place in the ‘grand scheme’ . . . genuinely witty and charming . . . magnificent.” —Neil J. Gostling, University of Southampton Our understanding of vertebrate origins and the backbone of human history evolves with each new fossil find and DNA map. Many species have now had their genomes sequenced, and molecular techniques allow genetic inspection of even non-model organisms. But as longtime Nature editor Henry Gee argues in Across the Bridge, despite these giant strides and our deepening understanding of how vertebrates fit into the tree of life, the morphological chasm between vertebrates and invertebrates remains vast and enigmatic. As Gee shows, even as scientific advances have falsified a variety of theories linking these groups, the extant relatives of vertebrates are too few for effective genetic analysis. Moreover, the more we learn about the species that do remain—from sea-squirts to starfish—the clearer it becomes that they are too far evolved along their own courses to be of much use in reconstructing what the latest invertebrate ancestors of vertebrates looked like. Fossils present yet further problems of interpretation. Tracing both the fast-changing science that has helped illuminate the intricacies of vertebrate evolution as well as the limits of that science, Across the Bridge helps us to see how far the field has come in crossing the invertebrate-to-vertebrate divide—and how far we still have to go. “A beautiful ode to some of the least appreciated animals . . . guides the reader joyfully through deuterostomes—weaving disparate elements of embryology, paleontology, and morphology into an unprecedented and accessible narrative.” —Jakob Vinther, University of Bristol

Author : Byung-Yong Park,Jean-Pierre Saint-Jeannet
Publisher : Biota Publishing
Page : 92 pages
File Size : 54,7 Mb
Release : 2010-04-01
Category : Medical
ISBN : 9781615041039

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Induction and Segregation of the Vertebrate Cranial Placodes by Byung-Yong Park,Jean-Pierre Saint-Jeannet Pdf

During evolution the vertebrate head has acquired a number of unique features including specialized paired sense organs and cranial sensory ganglia. These evolutionary novelties arise from discrete thickenings of the head ectoderm known as cranial placodes. They include the adenohypophyseal, olfactory, lens, trigeminal, profundal, otic, epibranchial and lateral line placodes. While distinct in the derivatives and cell types they will form, all cranial placodes originate from a common preplacodal domain surrounding the anterior neural plate. Recent evidence suggests that the induction of this pre-placodal domain and its subsequent subdivision into individual placodes with specific identities is a multi-step process. Here we describe the development of these placodes and their derivatives and summarize recent advances in the characterization of the repertoire of transcription factors underlying their development. We also review recent studies that have started to address the role of several classes of signaling molecules in placode induction and segregation, including Bone Morphogenetic Proteins, Fibroblast Growth Factors and Wnt molecules. Table of Contents: Introduction / Cranial Placodes and Their Derivatives / Molecular Identity of Cranial Placodes / Induction and Segregation of the Cranial Placodes / Conclusion / Acknowledgments / References / Author Biographies

Author : Philippa H. Francis-West,Lesley Robson,Darrell J.R. Evans
Publisher : Springer Science & Business Media
Page : 217 pages
File Size : 40,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642555701

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Craniofacial Development The Tissue and Molecular Interactions That Control Development of the Head by Philippa H. Francis-West,Lesley Robson,Darrell J.R. Evans Pdf

Craniofacial development is a multistep and intricate process initially involving a number of inductive interactions that control neural and neural crest development, which are followed by a series of epithelial-mesenchymal interactions that control outgrowth, patterning, and skeletal differentiation. Certain aspects of craniofacial development are unique developmental processes in higher vertebrates. First, in higher vertebrates the cranial neural crest, in contrast to the trunk neural crest, gives rise to the skeletal structures. These skeletal elements include those comprising mem brane bone and secondary cartilage, which with the exception of the clavicle are tissue types found exclusively in the head in higher vertebrates. Second, with the exception of the tongue, the origin of the musculature is distinct from other regions of the body. The body and tongue muscles are formed from the segmented epithelial somites whilst the head musculature is formed from unsegmented paraxial and prechordal mesoderm. Furthermore, the signalling cascades that control myogenic differentia tion appear to be distinct as determined by gene expression and the response of myogenic cells to growth factors. Finally, the neurogenic placodes, which give rise to the sensory organs and some cranial ganglia, are only found in the head. Over recent years, there have been significant advances in our knowledge of the molecular proc esses that control craniofacial development in a number of animal models. This has given insight into the genes that control many aspects of head development from the initial induction of the head to the final stages of differentiation.

Author : Larry W. Swanson
Publisher : Oxford University Press
Page : 348 pages
File Size : 51,5 Mb
Release : 2012
Category : Medical
ISBN : 9780195378580

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Brain Architecture by Larry W. Swanson Pdf

Now in its second edition, Brain Architecture is the continued exploration of how the brain works. At the very core of our existence, the brain generates our thoughts and feelings, directs our voluntary interactions with the environment, and coordinates all of the vital functions within the body itself. This long-overdue new edition explains this oftentimes daunting intricacy and exquisite detail. The first half of the book discusses the basic parts and how they work, presenting an overview of the nervous system at both the microscopic and macroscopic levels. The approach follows three classic lines of thought that proceed from simple to complex: the history of neuroscience research, the evolution of the nervous system, and the embryological development of the vertebrate central and peripheral nervous systems. The second half of the book outlines the basic wiring diagram of the brain and nervous system-how the parts are interconnected and how they control behavior and the internal state of the body. This is done within the framework of a new four-system network model that greatly simplifies understanding the structure-function organization of the nervous system. Written in clear and sparkling prose, beautifully illustrated, and thoroughly updated, Brain Architecture, Second Edition is must-read for anyone interested in the science of how the brain works.

Author : Mahendra S. Rao,Marcus Jacobson
Publisher : Springer Science & Business Media
Page : 428 pages
File Size : 47,8 Mb
Release : 2006-04-04
Category : Medical
ISBN : 9780387281179

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Developmental Neurobiology by Mahendra S. Rao,Marcus Jacobson Pdf

This consistent and well-illustrated text is an up-to-date survey of cellular and molecular events contributing to the assembly of the vertebrate nervous system. Chapters include a mixture of historical content and descriptions from literature that best illustrate specific aspects of development.

Author : Jean-Pierre Saint-Jeannet
Publisher : Springer Science & Business Media
Page : 267 pages
File Size : 45,7 Mb
Release : 2006-08-28
Category : Medical
ISBN : 9780387351360

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Neural Crest Induction and Differentiation by Jean-Pierre Saint-Jeannet Pdf

Written by an international panel of recognized leaders in the field, Neural Crest Induction and Differentiation discusses all aspects of modern neural crest biology from its evolutionary significance to its specification, migration, plasticity and contribution to multiple lineages of the vertebrate body, to the pathologies associated with abnormal neural crest development and function. Abundant color figures enhance the text providing clear and attractive illustrations of central issues and concepts.

Author : Sally A. Moody
Publisher : Academic Press
Page : 784 pages
File Size : 46,9 Mb
Release : 2014-09-02
Category : Science
ISBN : 9780124059238

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Principles of Developmental Genetics by Sally A. Moody Pdf

Providing expert coverage of all major events in early embryogenesis and the organogenesis of specific systems, and supplemented with representative clinical syndromes, Principles of Developmental Genetics, Second Edition discusses the processes of normal development in embryonic and prenatal animals, including humans. The new edition of this classic work supports clinical researchers developing future therapies with its all-new coverage of systems biology, stem cell biology, new technologies, and clinical disorders. A crystal-clear layout, exceptional full-color design, and bulleted summaries of major takeaways and clinical pathways assist comprehension and readability of the highly complex content. All-new coverage of systems biology and stem cell biology in context of evolving technologies places the work squarely on the modern sciences Chapters are complemented with a bulleted summary for easy digestion of the major points, with a clinical summary for therapeutic application Clinical highlights provides a bridge between basic developmental biology and clinical sciences in embryonic and prenatal syndromes

Author : Eduardo E. Benarroch,Jeremy K. Cutsforth-Gregory,Kelly D. Flemming
Publisher : Oxford University Press
Page : 850 pages
File Size : 55,5 Mb
Release : 2017-11-06
Category : Medical
ISBN : 9780190209421

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Mayo Clinic Medical Neurosciences by Eduardo E. Benarroch,Jeremy K. Cutsforth-Gregory,Kelly D. Flemming Pdf

Fully updated and revised according to student feedback, the sixth edition of Mayo Clinic Medical Neurosciences: Organized by Neurologic System and Level provides a systematic approach to anatomy, physiology, and pathology of the nervous system inspired by the neurologist's approach to solving clinical problems. This volume has 4 sections: 1) an overview of the neurosciences necessary for understanding anatomical localization and pathophysiologic characterization of neurologic disorders; 2) an approach to localizing lesions in the 7 longitudinal systems of the nervous system; 3) an approach to localizing lesions in the 4 horizontal levels of the nervous system; and 4) a collection of clinical problems. This book provides the neuroscience framework to support the neurologist in a clinical setting and is also a great resource for neurology and psychiatry board certifications. This is the perfect guide for all medical students and neurology, psychiatry, and physical medicine residents at early stages of training. New to This Edition - A chapter devoted to multiple-choice questions for self-assessment - Discussion of emerging concepts in molecular, cellular, and system neurosciences - New chapters on emotion and consciousness systems - Incorporation of new discoveries in neuroimaging and an appendix for tables of medications commonly used to treat neurologic disorders