Download or read book Neuroglia in C elegans written by Randy F. Stout, Jr. and published by Biota Publishing. This book was released on 2018-02-27 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nematode C. elegans is one of the most important model organisms for understanding neurobiology. Its completely mapped neural connectome of 302 neurons and fully characterized and stereotyped development have made it a prototype for understanding nervous system structure, development, and function. Fifty-six out of C. elegans' total of 959 somatic cells are classified as neuroglia. Although research on worm glia has lagged behind studies focused on neurons, there has been a steep upswing in interest during the past decade. Information arising from the recent burst of research on worm glia supports the idea that C. elegans will continue to be an important animal model for understanding glial cell biology. Since the developmental lineage of all cells was mapped, each glial cell in C. elegans is known by a specific name and has research associated with it. We list and describe the glia of the hermaphrodite form of C. elegans and summarize research findings relating to each glial cell. We hope this lecture provides an informative overview of worm glia to accompany the excellent and freely available online resources available to the worm research community.
Download or read book The Neurobiology of C elegans written by and published by Elsevier. This book was released on 2006-02-02 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Neurobiology of C. elegans assembles together a series of chapters describing the progress researchers have made toward solving some of the major problems in neurobiology with the use of this powerful model organism. The first chapter is an introduction to the anatomy of the C. elegans nervous system. This chapter provides a useful introduction to this system and will help the reader who is less familiar with this system understand the chapters that follow. The next two chapters on learning, conditioning and memory and neuronal specification and differentiation, summarize the current state of the C. elegans field in these two major areas of neurobiology. The remaining chapters describe studies in C. elegans that have provided particularly exciting insights into neurobiology.
Download or read book C Elegans II written by Donald L. Riddle and published by Firefly Books. This book was released on 1997 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defines the current status of research in the genetics, anatomy, and development of the nematode C. elegans, providing a detailed molecular explanation of how development is regulated and how the nervous system specifies varied aspects of behavior. Contains sections on the genome, development, neural networks and behavior, and life history and evolution. Appendices offer genetic nomenclature, a list of laboratory strain and allele designations, skeleton genetic maps, a list of characterized genes, a table of neurotransmitter assignments for specific neurons, and information on codon usage. Includes bandw photos. For researchers in worm studies, as well as the wider community of researchers in cell and molecular biology. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Ay s Neuroanatomy of C Elegans for Computation written by Theodore B. Achacoso and published by CRC Press. This book was released on 2022-04-19 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1992, AY's Neuroanatomy of C. elegans for Computation provides the neural circuitry database of the nematode Caenorhabditis elegans, both in printed form and in ASCII files on 5.25-inch diskettes (for use on IBM® and compatible personal computers, Macintosh® computers, and higher level machines). Tables of connections among neuron classes, synapses among individual neurons, gap junctions among neurons, worm cells and their embryonic origin, and synthetically derived neuromuscular connections are presented together with the references from which the data were compiled and edited. Sample data files and source codes of FORTRAN and BASIC programs are provided to illustrate the use of mathematical tools for any researcher or student interested in examining a natural neural network and discovering what makes it tick.
Download or read book Genomic Regulatory Systems written by Eric H. Davidson and published by Elsevier. This book was released on 2001-01-24 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction between biology and evolution has been the subject of great interest in recent years. Because evolution is such a highly debated topic, a biologically oriented discussion will appeal not only to scientists and biologists but also to the interested lay person. This topic will always be a subject of controversy and therefore any breaking information regarding it is of great interest.The author is a recognized expert in the field of developmental biology and has been instrumental in elucidating the relationship between biology and evolution. The study of evolution is of interest to many different kinds of people and Genomic Regulatory Systems: In Development and Evolution is written at a level that is very easy to read and understand even for the nonscientist. * Contents Include* Regulatory Hardwiring: A Brief Overview of the Genomic Control Apparatus and Its Causal Role in Development and Evolution * Inside the Cis-Regulatory Module: Control Logic and How the Regulatory Environment Is Transduced into Spatial Patterns of Gene Expression* Regulation of Direct Cell-Type Specification in Early Development* The Secret of the Bilaterians: Abstract Regulatory Design in Building Adult Body Parts* Changes That Make New Forms: Gene Regulatory Systems and the Evolution of Body Plans
Download or read book Developmental Plasticity in the C Elegans Nervous System written by Erin L. Peckol and published by . This book was released on 1999 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monoamines Mechanosensation and Memory in the C Elegans Nervous System written by Katherine Kindt and published by . This book was released on 2006 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the main goals of neurobiology, and the focus of this dissertation, is to understand how genes act within a nervous system to generate behavior. The nematode Caenorhabditis elegans has a relatively simple nervous system comprised of 302 neurons with known connectivity. Despite this simplicity, C. elegans displays a wide-range of behaviors with surprising complexity. Well-developed genetics combined with a manageable nervous system make C. elegans a useful model to study how genes alter behavior. This dissertation focuses on the mechanosensory neurons of C. elegans. In the development of the gentle touch mechanosensory neurons, serotonin appears to act as permissive cue that allows these neurons to migrate to their proper locations. Mutations in Go-alpha (goa-1) signaling and the calcium channel (unc-2) also affect migration of the gentle touch neurons. Genetic analysis confirms that these genes act in the same pathway to confer motility to the migrating touch neurons. Dopamine is also important for the gentle touch neurons, but not developmentally. DOP-1, a D1-like dopamine receptor expressed in the touch neurons, is required for normal habituation of the gentle touch response. Cell-specific rescue confirms a role for DOP-1 signaling in the touch cells during habituation. Further genetic analysis indicates that Gq-alpha (egl-30) signaling couples to DOP-1. This signaling utilizes the second messengers IP3 and DAG to act on ER calcium and PKC activity respectively to modulate habituation. In vivo calcium imaging indicates that this signaling cascade acts cell autonomously to regulate touch cell sensitivity. Food is an essential cue for dopamine modulation of touch habituation; in the absence of food, DOP-1 worms habituate at the same rate as wildtype. Experiments also suggest that worms utilize their dopamine neurons to sense food mechanically, and release dopamine to slow habituation; this is dependent on the TRPN channel TRP-4. Another potential mechanosensitve TRP channel in C. elegans, TRPA-1 was recently identified. This channel is not required for gentle touch, but instead a distinct type of mechanosensation, nose touch and also foraging related behaviors. Cell-specific rescue and in vivo calcium imaging confirmed a direct role for TRPA-1 in nose touch neurons.
Download or read book The Oxford Handbook of Invertebrate Neurobiology written by John H. Byrne and published by Oxford University Press. This book was released on 2019-01-29 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invertebrates have proven to be extremely useful model systems for gaining insights into the neural and molecular mechanisms of sensory processing, motor control and higher functions such as feeding behavior, learning and memory, navigation, and social behavior. A major factor in their enormous contributions to neuroscience is the relative simplicity of invertebrate nervous systems. In addition, some invertebrates, primarily the molluscs, have large cells, which allow analyses to take place at the level of individually identified neurons. Individual neurons can be surgically removed and assayed for expression of membrane channels, levels of second messengers, protein phosphorylation, and RNA and protein synthesis. Moreover, peptides and nucleotides can be injected into individual neurons. Other invertebrate model systems such as Drosophila and Caenorhabditis elegans offer tremendous advantages for obtaining insights into the neuronal bases of behavior through the application of genetic approaches. The Oxford Handbook of Invertebrate Neurobiology reviews the many neurobiological principles that have emerged from invertebrate analyses, such as motor pattern generation, mechanisms of synaptic transmission, and learning and memory. It also covers general features of the neurobiology of invertebrate circadian rhythms, development, and regeneration and reproduction. Some neurobiological phenomena are species-specific and diverse, especially in the domain of the neuronal control of locomotion and camouflage. Thus, separate chapters are provided on the control of swimming in annelids, crustaea and molluscs, locomotion in hexapods, and camouflage in cephalopods. Unique features of the handbook include chapters that review social behavior and intentionality in invertebrates. A chapter is devoted to summarizing past contributions of invertebrates to the understanding of nervous systems and identifying areas for future studies that will continue to advance that understanding.
Download or read book E coli in Motion written by Howard C. Berg and published by Springer Science & Business Media. This book was released on 2008-01-11 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Escherichia coli, commonly referred to as E. coli, has been the organism of choice for molecular genetics for decades. Its machinery and mobile behavior is one of the most fascinating topics for cell scientists. Scientists and engineers, not trained in microbiology, and who would like to learn more about living machines, can see it as a unique example. This cross-disciplinary monograph covers more than thirty years of research and is accessible to graduate students and scientists alike.
Download or read book The Fine Structure of the Nervous System written by Alan Peters and published by Oxford University Press, USA. This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the most complete and authoritative description on the fine structure of the nervous system available in a single volume. Beginning with background material on the neuron, the book then examines specific portions of the nerve cell, and of the various supporting cells. Structure is first described in a general fashion, followed by detailed coverage of the fine structure of each component, with full discussion of how the structural features relate to their functions. Extensively revised and rewritten, this book will bring readers up to date with the many important developments that have taken place since publication of the previous edition. It includes over 130 electron micrographs and line drawings, many of which are new to this edition.
Download or read book The Role of Suppressors of Unc 34 ena in C Elegans Nervous System Development written by Pamela Jacobs Vanderzalm and published by . This book was released on 2006 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nature s Gift to Neuroscience written by Chun-Fang Wu and published by CRC Press. This book was released on 2022-02-27 with total page 839 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1960s, Sydney Brenner proposed to use the nematode worm Caenorhabditis elegans to discover the control mechanisms of animal development and to reveal how a small number of neurons generate different behaviours, giving birth to a vibrant community that uses this animal model for their studies. Brenner was aided in his aim by John Sulston, who mapped the C. elegans cell lineages – from a single cell to the multicellular adult – which transformed the field of developmental biology. As a tribute to these two men, this book captures the perspectives of some of the early pioneers of the worm community, from Martin Chalfie, Robert Waterston and Donald Moerman to Catherine Rankin, Antony Stretton and John White. It also includes contributions from subsequent generations of the community, who explore the development and function of the C. elegans nervous system. This book features how this animal has become one of the best models for elucidating the biology of different sensory modalities and their complex behavioural outputs, or how this animal’s survival strategies have contributed to our understanding of ageing and neurodegeneration. Thus, this volume documents the development of the C. elegans neuroscience field, from infancy to maturity. The chapters in this book were originally published as a special issue of the Journal of Neurogenetics.
Download or read book Enteric Glia written by Brian D. Gulbransen and published by Biota Publishing. This book was released on 2014-07-01 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enteric nervous system (ENS) is a complex neural network embedded in the gut wall that orchestrates the reflex behaviors of the intestine. The ENS is often referred to as the “little brain” in the gut because the ENS is more similar in size, complexity and autonomy to the central nervous system (CNS) than other components of the autonomic nervous system. Like the brain, the ENS is composed of neurons that are surrounded by glial cells. Enteric glia are a unique type of peripheral glia that are similar to astrocytes of the CNS. Yet enteric glial cells also differ from astrocytes in many important ways. The roles of enteric glial cell populations in the gut are beginning to come to light and recent evidence implicates enteric glia in almost every aspect of gastrointestinal physiology and pathophysiology. However, elucidating the exact mechanisms by which enteric glia influence gastrointestinal physiology and identifying how those roles are altered during gastrointestinal pathophysiology remain areas of intense research. The purpose of this e-book is to provide an introduction to enteric glial cells and to act as a resource for ongoing studies on this fascinating population of glia. Table of Contents: Introduction / A Historical Perspective on Enteric Glia / Enteric Glia: The Astroglia of the Gut / Molecular Composition of Enteric Glia / Development of Enteric Glia / Functional Roles of Enteric Glia / Enteric Glia and Disease Processes in the Gut / Concluding Remarks / References / Author Biography
Download or read book Regulating Genes in the C Elegans Nervous System written by Bethany Stitt and published by . This book was released on 2004 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Purinergic Signalling in Neuron Glia Interactions written by Derek J. Chadwick and published by John Wiley & Sons. This book was released on 2006-05-01 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: ATP, the intracellular energy source, is also an extremely important cell–cell signalling molecule for a wide variety of cells across evolutionarily diverse organisms. The extracellular biochemistry of ATP and its derivatives is complex, and the multiple membrane receptors that it activates are linked to many intracellular signalling systems. Purinergic signalling affects a diverse range of cellular phenomena, including ion channel function, cytoskeletal dynamics, gene expression, secretion, cell proliferation, differentiation and cell death. Recently, this class of signalling molecules and receptors has been found to mediate communication between neurons and non-neuronal cells (glia) in the central and peripheral nervous systems. Glia are critical for normal brain function, development and response to injury. Neural impulse activity is detected by glia and purinergic signalling is emerging as a major means of integrating functional activity between neurons, glia and vascular cells in the nervous system. These interactions mediate effects of neural activity on the development of the nervous system and in association with injury, neurodegeneration, myelination and cancer. Bringing together contributions from experts in diverse fields, including glial biologists, neurobiologists and specialists in purinergic receptor structure and pharmacology, this book considers how extracellular ATP acts to integrate communication between different types of glia, and between neurons and glia. Beginning with an overview of glia and purinergic signalling, it contains detailed coverage of purine release, receptors and reagents, purinergic signalling in the neural control of glial development, glial involvement in information processing, and discussion of the interactions between neurons and microglia.
Download or read book Cellular Ultrastructure of C Elegans Nervous System written by Nikita Thomas and published by . This book was released on 2013 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Caenorhabditis Elegans written by Henry F. Epstein and published by Academic Press. This book was released on 1995 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first of its kind, this laboratory handbook emphasizes diverse methods and technologies needed to investigate C. elegans, both as an integrated organism and as a model system for research inquiries in cell, developmental, and molecular biology, as well as in genetics and pharmacology. Four primary sections--Genetic and Culture Methods, Neurobiology, Cell and Molecular Biology, and Genomics and Informatics--reflect the cross-disciplinary nature of C. elegans research. Because C. elegans is a simple and malleable organism with a small genome and few cell types, it provides an elegant demonstr.
