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 Neuropeptide Systems as Targets for Parasite and Pest Control written by Timothy G. Geary and published by Springer Science & Business Media. This book was released on 2011-01-13 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to continually discover new agents for the control or treatment of invertebrate pests and pathogens is undeniable. Agriculture, both animal and plant, succeeds only to the extent that arthropod and helminth consumers, vectors and pathogens can be kept at bay. Humans and their companion animals are also plagued by invertebrate parasites. The deployment of chemical agents for these purposes inevitably elicits the selection of resistant populations of the targets of control, necessitating a regular introduction of new kinds of molecules. Experience in other areas of chemotherapy has shown that a thorough understanding of the biology of disease is an essential platform upon which to build a discovery program. Unfortunately, investment of research resources into understanding the basic physiology of invertebrates as a strategy to illuminate new molecular targets for pesticide and parasiticide discovery has been scarce, and the pace of introduction of new molecules for these indications has been slowed as a result. An exciting and so far unexploited area to explore in this regard is invertebrate neuropeptide physiology. This book was assembled to focus attention on this promising field by compiling a comprehensive review of recent research on neuropeptides in arthropods and helminths, with contributions from many of the leading laboratories working on these systems.
Download or read book Neuroscience written by Dale Purves and published by Sinauer Associates Incorporated. This book was released on 2004-01-01 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neuroscience is a comprehensive textbook created primarily for medical and premedical students; it emphasises the structure of the nervous system, the correlation of structure and function, and the structure/function relationships particularly pertinent to the practice of medicine. Although not primarily about pathology, the book includes the basis of a variety of neurological disorders. It could serve equally well as a text for undergraduate neuroscience courses in which many of the students are premeds. Being both comprehensive and authoritative, it is also appropriate for graduate and professional use. The new edition offers a host of new features including a new art program and the completely revised Sylvius for Neuroscience: Visual Glossary of Human Neuroanatomy, an interactive CD-ROM reference guide to the human nervous system. Major changes to the new edition also include: additional neuroanatomical content, including two appendices-(1) The Brainstem and Cranial Nerves and (2) Vascular Supply, the Meninges, and the Ventricular System; and updated and new boxes on neurological and psychiatric diseases.
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 The Extraordinary Biology of the Naked Mole Rat written by Rochelle Buffenstein and published by Springer Nature. This book was released on 2021-08-23 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on the huge advances in the last 25 years on the use of this animal model for biomedical research (cancer, heart disease and neurodegeneration), fundamental neuroscience and basic subterranean biology. In 2013, Science magazine named the naked mole-rat as the Vertebrate of the Year. This was partly due to research carried out documenting its extreme longevity, negligible senescence, and prolonged maintenance of cancer free, good health well into old age as well as seminal work on mechanisms involved in these processes, pain and hypoxia resistance. In addition to this research focus on longevity and chronic diseases such as cancer and cardiovascular disease, the naked mole-rat has also made a substantial contribution to the fields of ecophysiology, neuroscience and behavior. With international contributions, this book provides a valuable text for zoological students, behavioral scientists and biomedical researchers.
Download or read book The Neurobiology of Painting written by Ronald J. Bradley and published by Elsevier. This book was released on 2006-05-19 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a basis for the interaction of the brain and nervous system with painting, music and literature, and a discussion of art from multiple facets – such as anatomy, migraine, illusion and evolutionary biology. The book explores several aspects of the neurobiology of painting, including evolutionary neurobiology, sensation vs. perception, the visual brain and how the mind works, and also explores the affects of brain disorders and trauma on artist, with a concluding chapter on Frida Kahlo and the spinal cord injury that influenced her painting.
Download or read book The Oxford Handbook of the Neurobiology of Pain written by John N. Wood and published by Oxford University Press, USA. This book was released on 2020 with total page 939 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is currently in development, with individual articles publishing online in advance of print publication. At this time, we cannot add information about unpublished articles in this handbook, however the table of contents will continue to grow as additional articles pass through the review process and are added to the site. Please note that the online publication date for this handbook is the date that the first article in the title was published online.
Download or read book Parkinson s Disease and Related Disorders written by Peter Riederer and published by Springer Science & Business Media. This book was released on 2006-11-23 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview on current clinical and basic research issues related to Parkinson’s disease and its related disorders. The book is the result of the 16th International Congress of Parkinson’s Disease and Related disorders congress 2005. Its contents are suitable for neurologists, psychiatrists, neurosurgeons, basic researchers, geneticians and patients as well as their relatives.
Download or read book The Case of the Frozen Addicts written by J.W. Langston and published by IOS Press. This book was released on 2013-12-02 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 1982, hospital emergency rooms in the San Francisco Bay Area were suddenly confronted with mysteriously “frozen” patients – young men and women who, though conscious, could neither move nor speak. Doctors were baffled, until neurologist J. William Langston, recognizing the symptoms of advanced Parkinson’s disease, administered L-dopa – the only known effective treatment – and “unfroze” his patient. Dr. Langston determined that this patient and five others had all used the same tainted batch of synthetic heroin, inadvertently laced with a toxin that had destroyed an area of their brains essential to normal movement. This same area, the substantia nigra, slowly deteriorates in Parkinson’s disease. As scientists raced to capitalize on this breakthrough, Dr. Langston struggled to salvage the lives of his frozen patients, for whom L-dopa provided only short-term relief. The solution he found lay in the most daring area of research: fetal-tissue transplants. The astonishing recovery of two of his patients garnered worldwide press coverage, helped overturn federal restrictions on fetal-tissue research, and offered hope to millions suffering from Parkinson’s, Alzheimer’s, and other degenerative brain disorders. This is the story behind the headline – a spellbinding account that brings to life the intellectual excitement, ethical dilemmas, and fierce competitiveness of medical research. This new updated edition of the classic neurological mystery tale, “The Case of the Frozen Addicts,” illuminates how the solution to a baffling mystery of the brain’s chemistry opened a new frontier in medicine and restored life to people without hope. “It begins with a series of quixotic discoveries, escalates to providing possible solutions for one of humanity’s most intractable medical problems, and then catapults the reader into the center of America’s hottest political arena – abortion and fetal sanctity. Bravo! A brilliant read.” – Laurie Garrett, author of The Coming Plague “[Langston and Palfreman] weave a highly readable and spellbinding medical detective tale... It is as absorbing as a good mystery, as entertaining as an exciting novel, and as enlightening as a good biography.” – Stanley Fahn, New England Journal of Medicine “I could not put it down... it is the lives of the ‘frozen addicts’ themselves – and the fullness with which this is presented – which makes the whole thing overwhelming.” – Oliver Sacks
Download or read book Principles of Neurobiology written by Liqun Luo and published by Garland Science. This book was released on 2015-07-14 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Neurobiology presents the major concepts of neuroscience with an emphasis on how we know what we know. The text is organized around a series of key experiments to illustrate how scientific progress is made and helps upper-level undergraduate and graduate students discover the relevant primary literature. Written by a single author in
Download or read book Animal Models of Movement Disorders written by Emma L. Lane and published by Humana Press. This book was released on 2011-09-08 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Movement is the way that animals interact with their environment and is under the organization and complex control of the brain and spinal cord. Multiple central nervous systems, including cortex, basal ganglia, cerebellum, and brainstem, interact to provide precise motor control and integration. Damage or disease within these systems cause profound motor disturbances in man, which can be effectively modeled in animals to develop a better understanding and treatment of the human condition. Animal Models of Movement Disorders introduces a variety of methods and techniques used to model and assess motor function in experimental animals from lower orders, such as drosophila and c. elegans, through vertebrate species including fish, to mammals, such as rodents and non-human primates. The most advanced contemporary models in each system are presented at multiple levels of analysis from molecular and genetic modeling, lesions, anatomy, neurochemistry, to imaging and behavior. Volume II of this detailed collection contains sections on the basal ganglia, neo- and allo-cortical systems, cerebellar and brain stem systems, as well as spinal cord systems. Comprehensive and meticulous, Animal Models of Movement Disorders serves as a valuable reference for those studying motor disorders by covering methodologies in detail and providing the information necessary to consider both the appropriate models and assessment tools that can most informatively answer the key experimental issues in the field.
Download or read book Neuronal Serotonin written by N. N. Osborne and published by . This book was released on 1988-06-03 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents wide-ranging views on the roles of serotonin in various functions, such as sleep, pain, and behavior, as well as new developments in serotonin research. Placing major emphasis on serotonin receptors, it examines the progress made in scientific understanding in the field, including coverage of specific receptors linked to the utilization of inositol phosphate(s) as a second messenger, peripheral serotonin receptors, the production and clinical significance of targeted antagonists to these receptors, and evidence supporting the presence of at least five types of serotonin receptors in the mammalian nervous system, including various experimental strategies and findings on their functional significance.
Download or read book Reinventing Discovery written by Michael Nielsen and published by Princeton University Press. This book was released on 2020-04-07 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reinventing Discovery argues that we are in the early days of the most dramatic change in how science is done in more than 300 years. This change is being driven by new online tools, which are transforming and radically accelerating scientific discovery"--
Download or read book Brains Through Time written by Georg F. Striedter and published by Oxford University Press, USA. This book was released on 2020 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Much is conserved in vertebrate evolution, but significant changes in the nervous system occurred at the origin of vertebrates and in most of the major vertebrate lineages. This book examines these innovations and relates them to evolutionary changes in other organ systems, animal behavior, and ecological conditions at the time. The resulting perspective clarifies what makes the major vertebrate lineages unique and helps explain their varying degrees of ecological success. One of the book's major conclusions is that vertebrate nervous systems are more diverse than commonly assumed, at least among neurobiologists. Examples of important innovations include not only the emergence of novel brain regions, such as the cerebellum and neocortex, but also major changes in neuronal circuitry and functional organization. A second major conclusion is that many of the apparent similarities in vertebrate nervous systems resulted from convergent evolution, rather than inheritance from a common ancestor. For example, brain size and complexity increased numerous times, in many vertebrate lineages. In conjunction with these changes, olfactory inputs to the telencephalic pallium were reduced in several different lineages, and this reduction was associated with the emergence of pallial regions that process non-olfactory sensory inputs. These conclusions cast doubt on the widely held assumption that all vertebrate nervous systems are built according to a single, common plan. Instead, the book encourages readers to view both species similarities and differences as fundamental to a comprehensive understanding of nervous systems. Evolution; Phylogeny; Neuroscience; Neurobiology; Neuroanatomy; Functional Morphology; Paleoecology; Homology; Endocast; Brain"--
Download or read book Cognitive Ecology written by Reuven Dukas and published by University of Chicago Press. This book was released on 1998-07-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cognitive Ecology lays the foundations for a field of study that integrates theory and data from evolutionary ecology and cognitive science to investigate how animal interactions with natural habitats shape cognitive systems, and how constraints imposed on nervous systems limit or bias animal behavior. Using critical literature reviews and theoretical models, the contributors provide new insights and raise novel questions about the adaptive design of specific brain capacities and about optimal behavior subject to the computational capabilities of brains.
Download or read book Serotonin in the Central Nervous System and Periphery written by Akikazu Takada and published by Elsevier Science & Technology. This book was released on 1995 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work contains contributions on the progress of serotonin research. On the central nervous system, papers deal with topics such as 5-HT receptors and animal models of anxiety; in the periphery, the roles of 5-HT and effects of antagonists of 5-HT receptors in the circulation are presented.
