Download or read book An in Vitro Study on the Role of Excitatory Amino acid Receptors in Normal and Epileptic Neocortices written by Granger G. C. (Guo-Chiang) Hwa and published by . This book was released on 1992 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The putative neurotransmitters L-glutamate and L-aspartate can exert their excitatory action by activating the N-methyl-D-aspartate (NMDA) and non-NMDA receptors. The objective of this thesis is to investigate the physiological role of these excitatory amino-acid receptors in neocortical slices of normal rats and epileptic patients. My experiments in the rat neocortex indicate that excitatory synaptic transmission in normal artificial cerebrospinal fluid (ACSF) is primarily mediated by non-NMDA receptors, whereas the NMDA receptor is only activated when synaptic inhibition mediated by gamma-aminobutyric-acid-A receptors is reduced or blocked. Under such conditions, I found that the NMDA receptor participates in neuronal synchronization through polysynaptic circuits and contributes to the depolarization underlying the epileptiform discharge. In the epileptogenic human neocortex, I discovered that both NMDA and non-NMDA receptors are responsible for excitatory synaptic transmission in normal ACSF. Furthermore, their activation can lead to the appearance of epileptiform discharges. Together, the findings reported in this thesis suggest that the function of NMDA and non-NMDA receptors might be enhanced in the epileptogenic human neocortex, and lend further support to the hypothesis that excitatory amino acids are involved in epileptogenesis." --

Download or read book Excitatory Amino Acids and Epilepsy written by Robert Schwarcz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human epilepsy is a major public health problem affecting approximately 2 persons per 1000. It is particularly frequent in ohildren where convul sions may lead to brain damage and subsequent seizure activity in adulthood. Temporal lobe epilepsy (synonyms include limbic epilepsy. psychomotor epilepsy and complex partial epilepsy) is the most devastating form of epilepsy in the adult population since: a) it is often extremely resistant to currently available anticonvulsant drugs (i.e •• it is more resistant than tonico-clonic or grand mal seizures) and b) it includes loss of consciousness. thereby limiting performance of many normal functions and leaving the individual susceptible to bodily injury. It is also associated with nerve cell loss. in particular in the hippocampus and other structures of the temporal lobes. In order to promote an appropriate therapy it is essential to understand the etiology of seizures and its relationship to brain damage. Basic research on epilepsy also provides a very useful vehicle to learn about the way the brain functions under normal conditions. For instance. much of our present understanding of the mechanisms of action of GABA and benzo diazepines. control of neuronal activity. etc. has been derived from such stUdies.

Download or read book Excitatory Amino Acids and the Cerebral Cortex written by Fiorenzo Conti and published by MIT Press. This book was released on 1996 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has recently become clear that the excitatory amino acids and their receptors are critically linked to normal processes of development and synaptic transmission, and to learning and memory, as well as to identifiable disease processes such as Alzheimer's disease, epilepsy, and cortical damage due to stroke/ischemia. Moreover, the pharmacological nature and chemical structures of many of the receptors and binding sites for these synaptic mediators and their modulators are becoming known, thereby enabling the cloning of each receptor subtype. Such advances may help immeasurably in the identification of endogenous ligands for the amino acid receptors and the development of pharmaceuticals and other therapeutic interventions in coming years.

Download or read book Excitatory Amino Acids written by Lechoslaw Turski and published by IOS Press. This book was released on 2001 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This past decade has led to many significant advances in the understanding of the function of excitatory amino acids in synaptic transmission. The cloning of the ionotropic and metabotropic glutamate receptor families of receptor proteins has produced new strategies for the pharmacological modulation of glutamate transmission. The engineering of transgenic animals with modified expression of receptor proteins has created new insights into the function, dysfunction and possible pathology causally related to glutamate receptors. Advances in the pharmacology of glutamate receptors has led to clinical research addressing multiple therapeutic applications of drugs that act on excitatory amino acid systems. A number of NMDA receptor anatagonists have now been studied in humans. AMPA/kainate and metabotropic receptor active compounds have left the preclinical realms of research and have moved towards or are in the clinic.

Download or read book Excitatory Amino Acids written by Roger P. Simon and published by . This book was released on 1992 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Excitatory Amino Acid Antagonists written by B. S. Meldrum and published by Wiley-Blackwell. This book was released on 1991-09-02 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excitatory amino acids are normal components of the human brain which serve as transmitters of nerve impulses. Recent research has shown that during stroke, when the brain is starved of oxygen, they are released in very large quantities which causes calcium overload and leads to degeneration and death of nerve cells. Such damage gives rise to the paralysis and memory loss occurring after episodes of stroke. Newly developed antagonists to excitatory amino acids when given shortly after stroke are able to dramatically reduce the extent of the resulting neural damage. It is also likely that these drugs will be of significant benefit in the treatment of epilepsy as they attenuate the paroxysmal discharges of hyperexcitable neurones. Estimates of the potential market size for drugs active against neurological disorders have led to a major investment by the pharmaceutical industry in research directed to new antagonists of excitatory amino acids. This is, therefore, an appropriate moment to summarize what is known about these compounds and to try to assess their future prospects. This book gives a scholarly overview of the recent developments in this important field. It is edited by the foremost authority on the subject and has been written by leading neuroscientists from all over the world, all of whom have made significant contributions to the subject. It is the first book in the world to be devoted specifically to excitatory amino acide antagonists and unlike most books in the field of neurochemistry, it is not based on a meeting! As such it will be of interest to all pharmacologists and neurologists engaged in research on the central nervous system and particularly those working on the development of new drugs for combating stroke, epilepsy and neurodegenerative disease

Download or read book Frontiers in Excitatory Amino Acid Research written by Esper A. Cavalheiro and published by Alan R. Liss. This book was released on 1988 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Oxford Textbook of Epilepsy and Epileptic Seizures written by Samden Lhatoo and published by Oxford University Press, USA. This book was released on 2012-12-20 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of the Oxford Textbooks in Clinical Neurology (OTCN) series, this volume covers the scientific basis, clinical diagnosis, and treatment of epilepsy and epileptic seizures, and is complemented by an online edition.

Download or read book Astrocytes and Epilepsy written by Jacqueline A. Hubbard and published by Academic Press. This book was released on 2016-07-05 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epilepsy is a devastating group of neurological disorders characterized by periodic and unpredictable seizure activity in the brain. There is a critical need for new drugs and approaches given than at least one-third of all epilepsy patients are not made free of seizures by existing medications and become "medically refractory". Much of epilepsy research has focused on neuronal therapeutic targets, but current antiepileptic drugs often cause severe cognitive, developmental, and behavioral side effects. Recent findings indicate a critical contribution of astrocytes, star-shaped glial cells in the brain, to neuronal and network excitability and seizure activity. Furthermore, many important cellular and molecular changes occur in astrocytes in epileptic tissue in both humans and animal models of epilepsy. The goal of Astrocytes and Epilepsy is to comprehensively review exciting findings linking changes in astrocytes to functional changes responsible for epilepsy for the first time in book format. These insights into astrocyte contribution to seizure susceptibility indicate that astrocytes may represent an important new therapeutic target in the control of epilepsy. Astrocytes and Epilepsy includes background explanatory text on astrocyte morphology and physiology, epilepsy models and syndromes, and evidence from both human tissue studies and animal models linking functional changes in astrocytes to epilepsy. Beautifully labelled diagrams are presented and relevant figures from the literature are reproduced to elucidate key findings and concepts in this rapidly emerging field. Astrocytes and Epilepsy is written for neuroscientists, epilepsy researchers, astrocyte investigators as well as neurologists and other specialists caring for patients with epilepsy. Presents the first comprehensive book to synthesize historical and recent research on astrocytes and epilepsy into one coherent volume Provides a great resource on the field of astrocyte biology and astrocyte-neuron interactions Details potential therapeutic targets, including chapters on gap junctions, water and potassium channels, glutamate and adenosine metabolism, and inflammation

Download or read book Encyclopedia of Basic Epilepsy Research written by and published by Academic Press. This book was released on 2009-05-27 with total page 1853 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a truly translational area of biomedical investigation, epilepsy research spans an extraordinary breadth of subjects and involves virtually every tool that modern neuroscience has at its disposal. The Encyclopedia of Basic Epilepsy Research provides an up to date, comprehensive reference for all epilepsy researchers. With an expert list of authors, the encyclopedia covers the full spectrum of research activities from genes and molecules to animal models and human patients. The encyclopedia's electronic format also provides unparalleled access to frequent updates and additions, while the limited edition print version provides another option for owning this content. The Encyclopedia of Basic Epilepsy Research is an essential resource for researchers of all levels and clinicians who study epilepsy. The only comprehensive reference for basic research and current activities in epilepsy Electronic format provides fast and easy access to updates and additions, with limited print version available as well Contains over 85 articles, all written by experts in epilepsy research

Download or read book Seizures and Epilepsy written by Jerome Engel Jr and published by Oxford University Press. This book was released on 2013-01-31 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of 'Seizures and Epilepsy' is completely revised, due to tremendous advances in the understanding of the fundamental neuronal mechanisms underlying epileptic phenomena, as well as current diagnosis and treatment, which have been heavily influenced over the past several decades by seminal neuroscientific developments, particularly the introduction of molecular neurobiology, genetics, and modern neuroimaging. This resource covers a broad range of both basic and clinical epileptology.

Download or read book Factors Affecting Neurological Aging written by Colin R Martin and published by Academic Press. This book was released on 2021-06-01 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factors Affecting Neurological Aging: Genetics, Neurology, Behavior, and Diet is a comprehensive reference on the genetic and behavioral features associated with neurological aging and associated disorders. This book discusses the mechanisms underlying neurological aging and provides readers with a detailed introduction to the aging of neural connections and complexities in biological circuitries, as well as the physiological, behavioral, molecular, and cellular features of neurological aging. Finally, this comprehensive resource examines the use of animal modeling of aging and neurological disease. Provides the most comprehensive coverage on a broad range of topics related to the neuroscience of aging Features sections on the genetic components that influence aging and diseases of aging Focuses on neurological diseases and conditions linked to aging, environmental factors and clinical recommendations Includes more than 500 illustrations and tables

Download or read book American Doctoral Dissertations written by and published by . This book was released on 2001 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Kainic Acid as a Tool in Neurobiology written by Edith G. McGeer and published by Lippincott Williams & Wilkins. This book was released on 1978 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Jasper s Basic Mechanisms of the Epilepsies written by Jeffrey Noebels and published by OUP USA. This book was released on 2012-06-29 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jasper's Basic Mechanisms, Fourth Edition, is the newest most ambitious and now clinically relevant publishing project to build on the four-decade legacy of the Jasper's series. In keeping with the original goal of searching for "a better understanding of the epilepsies and rational methods of prevention and treatment.", the book represents an encyclopedic compendium neurobiological mechanisms of seizures, epileptogenesis, epilepsy genetics and comordid conditions. Of practical importance to the clinician, and new to this edition are disease mechanisms of genetic epilepsies and therapeutic approaches, ranging from novel antiepileptic drug targets to cell and gene therapies.

Download or read book Epileptogenic and Excitotoxic Mechanisms written by G. Avanzini and published by John Libbey Eurotext. This book was released on 1993 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is based on an advanced course on epileptogenic and excitotoxic mechanisms with emphasis on development. Information on partial and generalized epileptogenesis, derived from different experimental models, is comprehensively reviewed. Special sections are devoted to anatomical, biochemical and functional aspects of the maturing brain and to their interaction with epileptogenic agents.