Download or read book Mechanisms of Presynaptic Ca subscript v2 2 N type Modulation written by Allen W. Chan and published by . This book was released on 2008 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurotransmitter release at presynaptic terminals is a complex process involving calcium ion influx through voltage-gated calcium channels (Ca V). In addition to their role as entry points through which calcium influx may occur, CaV are now understood to be fundamental components of a common release-site complex that is highly adapted for modulation.In addition to G-protein regulation, presynaptic CaV2.2 have been demonstrated to exhibit a resistance to voltage-dependent inactivation (VDI), a property thought to be important in determining channel availability and synaptic excitability. I demonstrated a role for dynamic palmitoylation in conferring resistance to VDI in presynaptic terminals of the chick ciliary ganglion. Using tunicamycin, an inhibitor of palmitoylation, I induced a hyperpolarizing shift in the steady-state-inactivation (SSI) profile of presynaptic Ca V2.2.Finally, I examined the role of a CaV interacting protein, Munc18, as a potential regulator of CaV. I probed for alterations in CaV2.2 function in DRG neurons that had been transfected with Munc18 or Munc18 siRNA. Despite the intimate interaction between Munc18 and CaV2.2, no major effects on the fundamental characteristics of CaV2.2 function were observed. However, a hyperpolarizing shift in the inactivation profile of CaV2.2 was determined in DRG neurons in which Munc18 was knocked down. It is not clear if this was a direct consequence of Munc18 perturbation.Consistent with this model, I investigated mechanisms of modulating a presynaptic calcium channel, CaV2.2, via a heterotrimeric G-protein pathway. Using the patch-clamp technique, I demonstrated in chick dorsal root ganglion (DRG) neurons that the slow kinetics of G-protein inhibition of Ca V2.2 via GTPgammaS were limited by the rate of GDP dissociation from the G-protein nucleotide binding site. In addition, I investigated the role of G-protein regulation of CaV2.2 currents evoked by action potential-like stimuli. Here, I characterized an inhibited current that was advanced in time with respect to uninhibited controls. These currents exhibited a shorter latency to current activation and faster deactivation. These findings may have important physiological ramifications on signal transduction and timing.
Download or read book Mechanisms of Presynaptic CaV2 2 N type Modulation written by Allen Chan and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurotransmitter release at presynaptic terminals is a complex process involving calcium ion influx through voltage-gated calcium channels (CaV). In addition to their role as entry points through which calcium influx may occur, CaV are now understood to be fundamental components of a common release-site complex that is highly adapted for modulation. Consistent with this model, I investigated mechanisms of modulating a presynaptic calcium channel, CaV2.2, via a heterotrimeric G-protein pathway. Using the patch-clamp technique, I demonstrated in chick dorsal root ganglion (DRG) neurons that the slow kinetics of G-protein inhibition of CaV2.2 via GTPgammaS were limited by the rate of GDP dissociation from the G-protein nucleotide binding site. In addition, I investigated the role of G-protein regulation of CaV2.2 currents evoked by action potential-like stimuli. Here, I characterized an inhibited current that was advanced in time with respect to uninhibited controls. These currents exhibited a shorter latency to current activation and faster deactivation. These findings may have important physiological ramifications on signal transduction and timing. In addition to G-protein regulation, presynaptic CaV2.2 have been demonstrated to exhibit a resistance to voltage-dependent inactivation (VDI), a property thought to be important in determining channel availability and synaptic excitability. I demonstrated a role for dynamic palmitoylation in conferring resistance to VDI in presynaptic terminals of the chick ciliary ganglion. Using tunicamycin, an inhibitor of palmitoylation, I induced a hyperpolarizing shift in the steady-state-inactivation (SSI) profile of presynaptic CaV2.2. Finally, I examined the role of a CaV interacting protein, Munc18, as a potential regulator of CaV. I probed for alterations in CaV2.2 function in DRG neurons that had been transfected with Munc18 or Munc18 siRNA. Despite the intimate interaction between Munc18 and CaV2.2, no major effects on the fundamental characteristics of CaV2.2 function were observed. However, a hyperpolarizing shift in the inactivation profile of CaV2.2 was determined in DRG neurons in which Munc18 was knocked down. It is not clear if this was a direct consequence of Munc18 perturbation.
Download or read book Mechanisms of Presynaptic CaV2 2 N type Modulation written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: PhD.
Download or read book Medicinal Natural Products A Disease Focused Approach written by and published by Academic Press. This book was released on 2020-09-21 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal Natural Products: A Disease-Focused Approach, Volume 55 in the Annual Reports in Medicinal Chemistry series, highlights the applications of natural products as medicines or prospective medicinal leads for the treatment of various human ailments. Each chapter covers a particular disease area or medical condition, with chapters in this new release covering Medicinal Natural Products – An Introduction, Anticancer Natural Products, Antimicrobial Natural Products, Antimalarial and Antiparasitic Natural Products, Anti-inflammatory Natural Products, Neuroprotective Natural Products, Hepatoprotective Natural Products, Nephroprotective Natural Products, Cancer Chemopreventive Natural Products, Antipsoriatic Natural Products, Medicinal Natural Products in Osteoporosis, Antidiabetic Natural Products, Anti-obesity Natural Products, and much more. - Presents a disease-focused perspective - Includes the latest on the medicinal chemistry of natural products - Covers natural products in drug delivery
Download or read book Foundations of Cellular Neurophysiology written by Daniel Johnston and published by MIT Press. This book was released on 1994-11-02 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: with simulations and illustrations by Richard Gray Problem solving is an indispensable part of learning a quantitative science such as neurophysiology. This text for graduate and advanced undergraduate students in neuroscience, physiology, biophysics, and computational neuroscience provides comprehensive, mathematically sophisticated descriptions of modern principles of cellular neurophysiology. It is the only neurophysiology text that gives detailed derivations of equations, worked examples, and homework problem sets (with complete answers). Developed from notes for the course that the authors have taught since 1983, Foundations of Cellular Neurophysiology covers cellular neurophysiology (also some material at the molecular and systems levels) from its physical and mathematical foundations in a way that is far more rigorous than other commonly used texts in this area.
Download or read book Mathematical Foundations of Neuroscience written by G. Bard Ermentrout and published by Springer Science & Business Media. This book was released on 2010-07-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book applies methods from nonlinear dynamics to problems in neuroscience. It uses modern mathematical approaches to understand patterns of neuronal activity seen in experiments and models of neuronal behavior. The intended audience is researchers interested in applying mathematics to important problems in neuroscience, and neuroscientists who would like to understand how to create models, as well as the mathematical and computational methods for analyzing them. The authors take a very broad approach and use many different methods to solve and understand complex models of neurons and circuits. They explain and combine numerical, analytical, dynamical systems and perturbation methods to produce a modern approach to the types of model equations that arise in neuroscience. There are extensive chapters on the role of noise, multiple time scales and spatial interactions in generating complex activity patterns found in experiments. The early chapters require little more than basic calculus and some elementary differential equations and can form the core of a computational neuroscience course. Later chapters can be used as a basis for a graduate class and as a source for current research in mathematical neuroscience. The book contains a large number of illustrations, chapter summaries and hundreds of exercises which are motivated by issues that arise in biology, and involve both computation and analysis. Bard Ermentrout is Professor of Computational Biology and Professor of Mathematics at the University of Pittsburgh. David Terman is Professor of Mathematics at the Ohio State University.
Download or read book New Therapeutics for Traumatic Brain Injury written by Kim Heidenreich and published by Academic Press. This book was released on 2016-09-27 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Therapeutics for Traumatic Brain Injury: Prevention of Secondary Brain Damage and Enhancement of Repair and Regeneration explores traumatic brain injury (TBI), a major cause of death and disability throughout the world. The delayed nature of the secondary injury phase suggests that there is a therapeutic window for pharmacological interventions or other approaches to prevent progressive tissue damage and improve functional outcomes. It is now apparent that therapeutic interventions should entail both protective and repair/regeneration strategies depending on the phase of brain injury. This book describes emerging experimental strategies for the treatment of TBI, including new anti-inflammatory or anti-apoptotic therapeutics that limit brain damage, and novel or repurposed drugs that enhance repair or regeneration of the brain after injury. Comprehensive overview of basic approaches and translational development of new therapies for TBI Edited by a prominent TBI researcher that includes contributions by leading global researchers in the field Presents a great resource for researchers and practitioners to learn more about the many evolving preclinical studies and clinical trials currently underway, and the challenges of bringing translational studies in TBI to the clinic
Download or read book Mathematics for Neuroscientists written by Fabrizio Gabbiani and published by Academic Press. This book was released on 2017-02-04 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematics for Neuroscientists, Second Edition, presents a comprehensive introduction to mathematical and computational methods used in neuroscience to describe and model neural components of the brain from ion channels to single neurons, neural networks and their relation to behavior. The book contains more than 200 figures generated using Matlab code available to the student and scholar. Mathematical concepts are introduced hand in hand with neuroscience, emphasizing the connection between experimental results and theory. - Fully revised material and corrected text - Additional chapters on extracellular potentials, motion detection and neurovascular coupling - Revised selection of exercises with solutions - More than 200 Matlab scripts reproducing the figures as well as a selection of equivalent Python scripts
Download or read book Inhibitory Synaptic Plasticity written by Melanie A. Woodin and published by Springer Science & Business Media. This book was released on 2010-11-02 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will explore the most recent findings on cellular mechanisms of inhibitory plasticity and its functional role in shaping neuronal circuits, their rewiring in response to experience, drug addiction and in neuropathology. Inhibitory Synaptic Plasticity will be of particular interest to neuroscientists and neurophysiologists.
Download or read book Neuropsychopharmacology written by Kenneth L. Davis and published by Lippincott Williams & Wilkins. This book was released on 2002 with total page 1964 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly updated and completely reorganized for a sharper clinical focus, the Fifth Edition of this world-renowned classic synthesizes the latest advances in basic neurobiology, biological psychiatry, and clinical neuropsychopharmacology. The book establishes a critical bridge connecting new discoveries in molecular and cellular biology, genetics, and neuroimaging with the etiology, diagnosis, and treatment of all neuropsychiatric disorders. Nine sections focus on specific groups of disorders, covering clinical course, genetics, neurobiology, neuroimaging, and current and emerging therapeutics. Four sections cover neurotransmitter and signal transduction, emerging methods in molecular biology and genetics, emerging imaging technologies and their psychiatric applications, and drug discovery and evaluation. Compatibility: BlackBerry(R) OS 4.1 or Higher / iPhone/iPod Touch 2.0 or Higher /Palm OS 3.5 or higher / Palm Pre Classic / Symbian S60, 3rd edition (Nokia) / Windows Mobile(TM) Pocket PC (all versions) / Windows Mobile Smartphone / Windows 98SE/2000/ME/XP/Vista/Tablet PC
Download or read book Spiking Neuron Models written by Wulfram Gerstner and published by Cambridge University Press. This book was released on 2002-08-15 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurons in the brain communicate by short electrical pulses, the so-called action potentials or spikes. How can we understand the process of spike generation? How can we understand information transmission by neurons? What happens if thousands of neurons are coupled together in a seemingly random network? How does the network connectivity determine the activity patterns? And, vice versa, how does the spike activity influence the connectivity pattern? These questions are addressed in this 2002 introduction to spiking neurons aimed at those taking courses in computational neuroscience, theoretical biology, biophysics, or neural networks. The approach will suit students of physics, mathematics, or computer science; it will also be useful for biologists who are interested in mathematical modelling. The text is enhanced by many worked examples and illustrations. There are no mathematical prerequisites beyond what the audience would meet as undergraduates: more advanced techniques are introduced in an elementary, concrete fashion when needed.
Download or read book Single Neuron Computation written by Thomas M. McKenna and published by Academic Press. This book was released on 2014-05-19 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains twenty-two original contributions that provide a comprehensive overview of computational approaches to understanding a single neuron structure. The focus on cellular-level processes is twofold. From a computational neuroscience perspective, a thorough understanding of the information processing performed by single neurons leads to an understanding of circuit- and systems-level activity. From the standpoint of artificial neural networks (ANNs), a single real neuron is as complex an operational unit as an entire ANN, and formalizing the complex computations performed by real neurons is essential to the design of enhanced processor elements for use in the next generation of ANNs.The book covers computation in dendrites and spines, computational aspects of ion channels, synapses, patterned discharge and multistate neurons, and stochastic models of neuron dynamics. It is the most up-to-date presentation of biophysical and computational methods.
Download or read book Bioinspired Actuators and Sensors written by Minoru Taya and published by Cambridge University Press. This book was released on 2016-10-13 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: From experts in engineering and biology, this is the first book to integrate sensor and actuator technology with bioinspired design.
Download or read book Neurotransmitters Drugs and Brain Function written by Roy Webster and published by John Wiley & Sons. This book was released on 2001-11-28 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurotransmitters, Drugs and Brain Function aims to link basic aspects of the activity of neurotransmitters at the receptor and synaptic level with their role in normal brain function, disease states, and drug action. Thus, the material considers to what extent our knowledge of the central synaptic action of certain drugs can explain their possible roles in the cause of diseases and in the modes of action of drugs effective in those conditions. It offers a working explanation of drug and neurotransmitter action in CNS function, with a clear, comprehensive, and challenging style of writing. The authors review the chemical basis for drugs and the conditions they treat. It also, includes numerous illustrations and schematic diagrams.
Download or read book Cerebral Cortex written by Edmund T. Rolls and published by Oxford University Press. This book was released on 2016 with total page 979 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides insights into the principles of operation of the cerebral cortex. These principles are key to understanding how we, as humans, function. The book includes Appendices on the operation of many of the neuronal networks described in the book, together with simulation software written in Matlab.
Download or read book Glial Neuronal Signaling written by Glenn I. Hatton and published by Springer Science & Business Media. This book was released on 2004-05-31 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glial Neuronal Signaling fills a need for a monograph/textbook to be used in advanced courses or graduate seminars aimed at exploring glial-neuronal interactions. Even experts in the field will find useful the authoritative summaries of evidence on ion channels and transporters in glia, genes involved in signaling during development, metabolic cross talk and cooperation between astrocytes and neurons, to mention but a few of the timely summaries of a wide range of glial-neuronal interactions. The chapters are written by the top researchers in the field of glial-neuronal signaling, and cover the most current advances in this field. The book will also be of value to the workers in the field of cell biology in general. When we think about the brain we usually think about neurons. Although there are 100 billion neurons in mammalian brain, these cells do not constitute a majority. Quite the contrary, glial cells and other non-neuronal cells are 10-50 times more numerous than neurons. This book is meant to integrate the emerging body of information that has been accumulating, revealing the interactive nature of the brain's two major neural cell types, neurons and glia, in brain function.
Download or read book Excitatory Inhibitory Balance written by Takao K. Hensch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new perspective on brain function depends upon an understanding of the interaction and integration of excitation and inhibition. A recent surge in research activity focused on inhibitory interneurons now makes a more balanced view possible. Technological advances such as improved imaging methods, visualized patch-clamp recording, multiplex single-cell PCR, and gene-targeted deletion or knock-in mice are some of the novel tools featured in this book. This book will provide an integrated view of neuron function, operating in a balanced regime of excitation and inhibition. It is a timely contribution emphasizing how this balance is established, maintained, and modified from the molecular to system levels. The broad spectrum of topics from molecular to cellular and system/computational neuroscience will appeal to a wide audience of advanced graduate students, post-docs, and faculty. Moreover, this book this book features active young researchers from around the world, who are currently educating the brain scientists of tomorrow.
