Neural Crest Induction and Differentiation

Author: Jean-Pierre Saint-Jeannet
Publisher: Springer Science & Business Media
ISBN: 0387469540
Format: PDF, Mobi
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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.

Developmental Patterning of the Vertebrate Limb

Author: J.Richard Hinchliffe
Publisher: Springer Science & Business Media
ISBN: 1461533104
Format: PDF
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Following pioneering work by Harrison on amphibian limbs in the 1920s and by Saunders (1948) on the apical ridge in chick limbs, limb development became a classical model system for investigating such fundamental developmental issues as tissue interactions and induction, and the control of pattern formation. Earlier international conferences, at Grenoble 1972, Glasgow 1976,and Storrs, Connecticut 1982, reflected the interests and technology of their time. Grenoble was concerned with ectoderm-mesenchyme interaction, but by the time of the Glasgow meeting, the zone of polarizing activity (ZPA) and its role in control of patterning was the dominant theme. Storrs produced the first intimations that the ZPA could be mimicked by retinoic acid (RA), but the diversity of extracellular masrix ~olecules,particularly in skeletogenesis,was the main focus of attention. By 1990, the paradigms had again shifted. Originally, the planners of the ARW saw retinoic acid (as a possible morphogen controlling skeletal patterning), the variety of extracellular matrix components and their roles, and the developmental basis of limb evolution as the leading contemporary topics. However, as planning proceeded, it was clear that the new results emerging from the use of homeobox gene probes (first developed to investigate the genetic control of patterning of Drosophila embryos) to analyse the localised expression of "patterning genes" in limb buds would also be an important theme.

Role of Proteases in Cellular Dysfunction

Author: Naranjan S. Dhalla
Publisher: Springer Science & Business Media
ISBN: 1461490995
Format: PDF, Kindle
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It is now well known that proteases are found everywhere, in viruses and bacteria as well as in all human, animal and plant cells, and play a role in a variety of biological functions ranging from digestion, fertilization, development to senescence and death. Under physiological conditions the ability of proteases is regulated by endogenous inhibitors. However, when the activity of proteases is not regulated appropriately, disease processes can result, as seen in Alzheimer’s disease, cancer metastasis and tumor progression, inflammation and atherosclerosis. Thus it is evident that there is an absolute need for a tighter control of proteolytic activities in different cells and tissues. Aimed at graduate students and researchers with an interest in cellular proteolytic events, Role of Proteases in Cellular Dysfunctions is the second book on Proteases in this series. The book consists of three parts in specified topics based on current literatures for a better understanding for the readers with respect to their subject-wise interests. The first section of this book covers a brief idea about the neuronal disorders and the involvement of proteases such as calpains, caspases and matrix metalloproteases (MMPs). The second section covers the deadly disease cancer and its relation to ubiquitin-proteasome system, MMPs and serine proteases. The last section is about the role of proteases such as calpains, MMPs and serine protease as well as urokinase type plasminogen activator receptor (uPAR) in causing cardiovascular defects.

The Neural Crest in Development and Evolution

Author: Brian K. Hall
Publisher: Springer Science & Business Media
ISBN: 1475730640
Format: PDF, ePub, Docs
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A discussion of the neural crest and neural crest cells, dealing with their discovery, their embryological and evolutionary origins, their cellular derivatives - in both agnathan and jawed vertebrates or gnathostomes - and the broad topics of migration and differentiation in normal development. The book also considers what goes wrong when development is misdirected by mutations, or by exposure of embryos to exogenous agents such as drugs, alcohol, or excess vitamin A, and includes discussions of tumours and syndromes and birth defects involving neural crest cells.

Epigenetics

Author: Benedikt Hallgrímsson
Publisher: Univ of California Press
ISBN: 0520267095
Format: PDF, ePub
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“If you want to understand evolution, you need to understand the murky world of epigenetics. A hearty congratulations should be paid to Hallgrimsson and Hall, who provide reliable and steady illumination.”-Bernard Wood, Center for the Advanced Study of Hominid Paleobiology, George Washington University

Extracellular Matrix in Development

Author: Douglas W. DeSimone
Publisher: Springer Science & Business Media
ISBN: 3642359353
Format: PDF, ePub, Mobi
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Cells in the developing embryo depend on signals from the extracellular environment to help guide their differentiation. An important mediator in this process is the extracellular matrix – secreted macromolecules that interact to form large protein networks outside the cell. During development, the extracellular matrix serves to separate adjacent cell groups, participates in establishing morphogenic gradients, and, through its ability to interact directly will cell-surface receptors, provides developmental clocks and positional information. This volume discusses how the extracellular matrix influences fundamental developmental processes and how model systems can be used to elucidate ECM function. The topics addressed range from how ECM influences early development as well as repair processes in the adult that recapitulate developmental pathways.

Clinical Neuroembryology

Author: Hans J. ten Donkelaar
Publisher: Springer
ISBN: 3642546870
Format: PDF, ePub, Mobi
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This book provides a comprehensive overview of the development of the human central nervous system (CNS) in the context of its many developmental disorders due to genetic, environmental, and hypoxic/ischemic causes. The introductory chapters give an overview of the development of the human brain and the spinal cord, the mechanisms of development as obtained in experimental studies of various invertebrates and vertebrates, and the causes of congenital malformations. In the main part, the developmental disorders of the human brain and the spinal cord are presented in a regional, more or less segmental way, starting with neurulation and neural tube defects, and ending with developmental disorders of the cerebral cortex. These are underlined by carefully chosen clinical case studies, including imaging data and, when available, postmortem verification of the developmental disorders involved. Numerous color photographs and illustrations complement the text. This second edition emphasizes the prenatal diagnosis by ultrasound, MRI, and DTI and implements new classifications of developmental disorders.

Topobiology

Author: Gerald Edelman
Publisher: Basic Books
ISBN: 9780465086535
Format: PDF, Docs
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If you had a complete copy of a dinosaur's DNA and the genetic code, you still would not be able to make a dinosaur—or even determine what one looked like. Why? How do animals get their shape and how does shape evolve? In this important book, Nobel laureate Gerald M. Edelman challenges the notion that an understanding of the genetic code and of cell differentiation is sufficient to answer these questions. Rather, he argues, a trio of related issues must also be investigated—the development of form, the evolution of form, and the morphological and functional bases of behavior. Topobiology presents an introduction to molecular embryology and describes a comprehensive hypothesis to account for the evolution and development of animal form.

Before the Backbone

Author: H. Gee
Publisher: Springer Science & Business Media
ISBN: 0585252726
Format: PDF, Mobi
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We cannot catechise our stony ichthyolites, as did the necromantic lady of the Arabian Nights did the coloured fishes of the lake which had once been a city, when she touched their dead bodies with her wand, and they straightaway raised their heads and rephed to her queries. We would have many a question to ask them if we could - questions never to be solved. Hugh Miller, The Old Red Sandstone When I started this book in 1991, the subject of vertebrate origins was fusty and unfashionable. Early drafts for this preface read like an extend ed complaint at the lot of traditional morphologists, cast aside by the march of modern molecular biology. But no longer - this book should reach you at a time of renewed inter est in the origin of the vertebrates, our own particular corner of creation. For although the topic has excited interest for well over a century, molec ular biology has only lately achieved the maturity necessary to test its predictions. As a legitimate field of study, it is fashionable again.

Sound Communication in Fishes

Author: Friedrich Ladich
Publisher: Springer
ISBN: 3709118468
Format: PDF, ePub
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This volume examines fish sounds that have a proven signal function, as well as sounds assumed to have evolved for communication purposes. It provides an overview of the mechanisms, evolution and neurobiology behind sound production in fishes, and discusses the role of fish sounds in behavior with a special focus on choice of mate, sex-specific and age-specific signaling. Furthermore, it highlights the ontogenetic development of sound communication and ecoacoustical conditions in fish habitats and the influence of hormones on vocal production and sound detection. Sound Communication in Fishes offers a must-have compendium for lecturers, researchers and students working in the fields of animal communication, fish biology, neurobiology and animal behavior.