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The Glutamate Gaba Glutamine Cycle
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Book Synopsis The Glutamate/GABA-Glutamine Cycle by : Arne Schousboe
Download or read book The Glutamate/GABA-Glutamine Cycle written by Arne Schousboe and published by Springer. This book was released on 2016-11-25 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamental biochemical studies of basic brain metabolism focusing on the neuroactive amino acids glutamate and GABA combined with the seminal observation that one of the key enzymes, glutamine synthetase is localized in astroglial cells but not in neurons resulted in the formulation of the term “The Glutamate-Glutamine Cycle.” In this cycle glutamate released from neurons is taken up by surrounding astrocytes, amidated by the action of glutamine synthetase to glutamine which can be transferred back to the neurons. The conversion of glutamate to glutamine is like a stealth technology, hiding the glutamate molecule which would be highly toxic to neurons due to its excitotoxic action. This series of reactions require the concerted and precise interaction of a number of enzymes and plasma membrane transporters, and this volume provides in-depth descriptions of these processes. Obviously such a series of complicated reactions may well be prone to malfunction and therefore neurological diseases are likely to be associated with such malfunction of the enzymes and transporters involved in the cycle. These aspects are also discussed in several chapters of the book. A number of leading experts in neuroscience including intermediary metabolism, enzymology and transporter physiology have contributed to this book which provides comprehensive discussions of these different aspects of the functional importance of the glutamate-glutamine cycle coupling homeostasis of glutamatergic, excitatory neurotransmission to basic aspects of brain energy metabolism. This book will be of particular importance for students as well as professionals interested in these fundamental processes involved in brain function and dysfunction.
Book Synopsis Glutamate-Related Biomarkers in Drug Development for Disorders of the Nervous System by : Institute of Medicine
Download or read book Glutamate-Related Biomarkers in Drug Development for Disorders of the Nervous System written by Institute of Medicine and published by National Academies Press. This book was released on 2011-07-05 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glutamate is the most pervasive neurotransmitter in the central nervous system (CNS). Despite this fact, no validated biological markers, or biomarkers, currently exist for measuring glutamate pathology in CNS disorders or injuries. Glutamate dysfunction has been associated with an extensive range of nervous system diseases and disorders. Problems with how the neurotransmitter glutamate functions in the brain have been linked to a wide variety of disorders, including schizophrenia, Alzheimer's, substance abuse, and traumatic brain injury. These conditions are widespread, affecting a large portion of the United States population, and remain difficult to treat. Efforts to understand, treat, and prevent glutamate-related disorders can be aided by the identification of valid biomarkers. The Institute of Medicine's Forum on Neuroscience and Nervous System Disorders held a workshop on June 21-22, 2010, to explore ways to accelerate the development, validation, and implementation of such biomarkers. Glutamate-Related Biomarkers in Drug Development for Disorders of the Nervous System: Workshop Summary investigates promising current and emerging technologies, and outlines strategies to procure resources and tools to advance drug development for associated nervous system disorders. Moreover, this report highlights presentations by expert panelists, and the open panel discussions that occurred during the workshop.
Book Synopsis GABA And Glutamate by : Janko Samardzic
Download or read book GABA And Glutamate written by Janko Samardzic and published by BoD – Books on Demand. This book was released on 2018-03-21 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collates the contributions of a selected number of neuroscientists that are interested in the molecular, preclinical, and clinical aspects of neurotransmission research. The seven chapters in this book address the latest research/review data related to GABA/glutamate system's organization and function, the structure of receptors, subtypes and their ligands, as well as the translational approach and clinical implications. The book offers readers a rich collection of data regarding current and future applications of GABA and glutamate neurotransmission, including promising research strategies and potential clinical benefits.
Book Synopsis The Heterogeneity of Cancer Metabolism by : Anne Le
Download or read book The Heterogeneity of Cancer Metabolism written by Anne Le and published by Springer Nature. This book was released on 2021-05-20 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access volume will introduce recent discoveries in cancer metabolism since the publication of the first edition in 2018, providing readers with an up-to-date understanding of developments in the field. Genetic alterations in cancer, in addition to being the fundamental drivers of tumorigenesis, can give rise to a variety of metabolic adaptations that allow cancer cells to survive and proliferate in diverse tumor microenvironments. This metabolic flexibility is different from normal cellular metabolic processes and leads to heterogeneity in cancer metabolism within the same cancer type or even within the same tumor. In this book, the authors delve into the complexity and diversity of cancer metabolism and highlight how understanding the heterogeneity of cancer metabolism is fundamental to the development of effective metabolism-based therapeutic strategies for cancer treatment. Deciphering how cancer cells utilize various nutrient resources will enable clinicians and researchers to pair specific chemotherapeutic agents with patients who are most likely to respond with positive outcomes, allowing for more cost-effective and personalized cancer treatment. This book has four major parts. Part one will cover the basic metabolism of cancer cells, followed by a discussion of the heterogeneity of cancer metabolism in part two. Part three addresses the relationship between cancer cells and cancer-associated fibroblasts, and the new part four will explore the metabolic interplay between cancer and other diseases. This new section makes the book unique from other texts currently available on the market. The second edition will be useful for cancer metabolism researchers, cancer biologists, epidemiologists, physicians, health care professionals in related disciplines, policymakers, marketing and economic strategists, among others. It may also be used in courses such as intro to cancer metabolism, cancer biology, and related biochemistry courses for undergraduate and graduate students.
Book Synopsis Astrocytic-neuronal-astrocytic Pathway Selection for Formation and Degradation of Glutamate/GABA by : Leif Hertz
Download or read book Astrocytic-neuronal-astrocytic Pathway Selection for Formation and Degradation of Glutamate/GABA written by Leif Hertz and published by Frontiers E-books. This book was released on 2014-04-30 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endocrinological research early recognized the importance of intercellular interactions and realized the importance of glutamatergic and GABAergic signaling. In turn this signalling depends on elaborate interactions between astrocytes and neurons, without which neurons would be unable to produce, reuse and metabolize transmitter glutamate and GABA. Details of these subjects are described in this Research Topic by key investigators in this field. It focuses on the intricate and extremely swift pathway producing these amino acid transmitters from glucose in brain but also discusses difficulties in determining expression of some of the necessary genes in astrocytes and related processes in pancreatic islets. However, it does not discuss how closely associated astrocytes and neurons are anatomically, enabling these interactions. This is elegantly shown in this cover image, kindly provided by Professor Andreas Reichenbach (University of Leipzig, Germany).
Book Synopsis Biochemistry of Vitamin B6 and PQQ by : G. Marino
Download or read book Biochemistry of Vitamin B6 and PQQ written by G. Marino and published by Birkhäuser. This book was released on 2012-12-06 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intemational Meeting on Vitamin B6 and Carbonyl Catalysis took place on Capri, Italy from 22nd to 27th May 1994 and was organized in conjunction with the 3rd Symposium on PQQ and Quinoproteins. It was an extraordinary occasion for scientists from all over the world to meet and discuss new developments in these overlapping fields. Several sessions were dedicated to the molecular aspects of Vitamin B6 and Quinone dependent enzymes, as well as to the cellular, biomedical and nutritional aspects. The congress was inaugurated by Paolo Fasella in his capacity as General Director of Science, Research and Development of the Commission of the European Communities, with an overview on Intemational Scientific Collaboration. The scientific sessions started with a talk on the History of Vitamin B6 given by David Metzler who at the very last minute presented Esmond Snell's paper adding some personal remarks. Unfortunately, both Esmond Snell and Alton Meister had to unexpectedly cancel the trip to Capri. These proceedings contain the papers presented as oral contributions and a few selected poster presentations. The limited number of pages meant we could not publish many interesting poster presentations, including those selected for the three lively and exciting evening poster discussion sessions called by the organizers "Vino, taralli and ... discussion".
Book Synopsis Neural Metabolism In Vivo by : In-Young Choi
Download or read book Neural Metabolism In Vivo written by In-Young Choi and published by Springer Science & Business Media. This book was released on 2012-03-08 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the preface: “Neural Metabolism In Vivo aims to provide a comprehensive overview of neurobiology by presenting the basic principles of up-to-date and cutting-edge technology, as well as their application in assessing the functional, morphological and metabolic aspects of the brain. Investigation of neural activity of the living brain via neurovascular coupling using multimodal imaging techniques extended our understanding of fundamental neurophysiological mechanisms, regulation of cerebral blood flow in connection to neural activity and the interplay between neurons, astrocytes and blood vessels. Constant delivery of glucose and oxygen for energy metabolism is vital for brain function, and the physiological basis of neural activity can be assessed through measurements of cerebral blood flow and consumption of glucose and oxygen.... This book presents the complex physiological and neurochemical processes of neural metabolism and function in response to various physiological conditions and pharmacological stimulations. Neurochemical detection technologies and quantitative aspects of monitoring cerebral energy substrates and other metabolites in the living brain are described under the “Cerebral metabolism of antioxidants, osmolytes and others in vivo” section. Altogether, the advent of new in vivo tools has transformed neuroscience and neurobiology research, and demands interdisciplinary approaches as each technology could only approximate a very small fraction of the true complexity of the underlying biological processes. However, translational values of the emerging in vivo methods to the application of preclinical to clinical studies cannot be emphasized enough. Thus, it is our hope that advances in our understanding of biochemical, molecular, functional and physiological processes of the brain could eventually help people with neurological problems, which are still dominated by the unknowns.” -- In-Young Choi and Rolf Gruetter
Book Synopsis Handbook of Neurochemistry by : Abel Lajtha
Download or read book Handbook of Neurochemistry written by Abel Lajtha and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biochemistry for Anesthesiologists and Intensivists by : Fernando Alemanno
Download or read book Biochemistry for Anesthesiologists and Intensivists written by Fernando Alemanno and published by Springer. This book was released on 2020-11-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses and explains the importance of biochemistry knowledge in understanding what happens to patients during anesthesia and/or to those being in intensive care. It covers a wide range of topics, such as Cerebral Edema, Shock, Blood-Brain Barrier, The Pulmonary surfactant, The Acid – Base equilibrium, Local anaesthetics, Perineural adjuvants, Normobaric Oxygen Therapy, Theories of Narcosis. Hyperventilation effects and consequences are also presented. For instance, by hyperventilating a patient with a PaCO2 significantly below 25 mmHg, we risk blocking pyruvic acid carboxylation and transforming it into oxalacetic acid, which in turn knocks out the Krebs cycle, possibly leading to a complication, i.e. to metabolic acidosis and not to compensation for respiratory alkalosis. It is also worth remembering that vitamins are actually molecules of pretty considerable potency and should not be simply intended as integrators. If we inject a patient under intensive care with vitamin C, this not only plays a capillary-protective role but facilitates the conversion of dopamine to noradrenaline. As far as vitamin B6 goes, not only is it the most natural of antiemetics but the coenzyme responsible for transforming glutamate as one of the most powerful excitatory mediators into GABA, one of the fiercest inhibitors. Anesthesiological and intensive care practice require a detailed biochemistry knowledge to avoid onset of complications and/or to deal with unexpected events promptly and appropriately. The book is intended for anesthesiologists, intensivists, anesthesia teachers, anesthesia trainees and residents.
Book Synopsis Monogenic Hyperinsulinemic Hypoglycemia Disorders by : D.D. De Léon
Download or read book Monogenic Hyperinsulinemic Hypoglycemia Disorders written by D.D. De Léon and published by Karger Medical and Scientific Publishers. This book was released on 2012-02-16 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume of 'Frontiers in Diabetes' dealing with the molecular basis of monogenic disease of beta-cell insulin regulation, world-renowned experts provide in-depth descriptions of the many recent advances in genetic defects that cause hyperinsulinemic hypoglycemia. These disorders comprise the most important form of hypoglycemia in infants and children and are associated with a high risk of morbidity, including seizures and severe brain injury. The discovery of eight different genetic loci involved in congenital hyperinsulinism has led to greatly improved methods of diagnosis and treatment. New approaches to diagnosis are highlighted, such as 18F-DOPA PET scans for preoperative localization of focal hyperinsulinism, as well as potential new treatments, such as green tea polyphenols for GDH-HI and GLP-receptor antagonists for SUR1 and Kir6.2 hyperinsulinism.Practitioners, including pediatricians and specialists in endocrinology, surgery, genetics, pathology, and radiology, will find important up-to-date information for clinical diagnosis, management, and new treatments for infants and children with congenital hyperinsulinism. Researchers will discover how genetic hyperinsulinism disorders provide novel insights into the basic mechanisms regulating insulin secretion not only in diabetics, but also in healthy humans.
Book Synopsis Chemical Biology of Neurodegeneration by : Pedro Merino
Download or read book Chemical Biology of Neurodegeneration written by Pedro Merino and published by John Wiley & Sons. This book was released on 2019-08-07 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridges the gap between the chemistry of small molecule neuromodulators and the complex pattern of neurodegenerative disorders Written by an experienced neurochemist, this book focuses on the main actors involved in neurodegenerative disorders at a molecular level, and places special emphasis on structural aspects and modes of action. Drawing on recent data on enzyme structure, mode of action, and inhibitor design, it describes?from a biochemical point of view?the six most important neurotransmitter systems and their constituent enzymes and receptors. Misfolding and aggregation of proteins within the brain is also covered. In addition, the book surveys a wide range of proven and prospective therapeutic agents that modulate key processes in the brain, from their chemical synthesis to their mode of action in model systems as well as in the patient. Chemical Biology of Neurodegeneration: A Molecular Approach is presented in two parts. The first introduces the neurotransmitter systems and provides a general explanation of the synapse and a description of the main structures involved in neurotransmission that can be considered therapeutic targets for disorders of the central nervous system. The second part presents molecular and chemical aspects directly involved or affected in neurodegeneration, including the metabolism of neurotransmitters, enzymes processing neurotransmitters, protein misfolding, and therapeutic agents. -Uses an interdisciplinary approach to bridge the gap between the basic biochemical events in a nerve cell and their neurological effects on the brain -Places emphasis on the chemistry of small molecule modulators that are potential lead molecules for new drugs -Covers six key neurotransmitter systems and their enzymes and receptors?dopaminergic, noradrenergic, serotonergic, cholinergic, GABAergic, and glutamatergic Chemical Biology of Neurodegeneration: A Molecular Approach is a key resource for medicinal chemists, neurobiologists, neurochemists, biochemists, molecular biologists, and neurophysiologists.
Book Synopsis Magnesium in the Central Nervous System by : Robert Vink
Download or read book Magnesium in the Central Nervous System written by Robert Vink and published by University of Adelaide Press. This book was released on 2011 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The brain is the most complex organ in our body. Indeed, it is perhaps the most complex structure we have ever encountered in nature. Both structurally and functionally, there are many peculiarities that differentiate the brain from all other organs. The brain is our connection to the world around us and by governing nervous system and higher function, any disturbance induces severe neurological and psychiatric disorders that can have a devastating effect on quality of life. Our understanding of the physiology and biochemistry of the brain has improved dramatically in the last two decades. In particular, the critical role of cations, including magnesium, has become evident, even if incompletely understood at a mechanistic level. The exact role and regulation of magnesium, in particular, remains elusive, largely because intracellular levels are so difficult to routinely quantify. Nonetheless, the importance of magnesium to normal central nervous system activity is self-evident given the complicated homeostatic mechanisms that maintain the concentration of this cation within strict limits essential for normal physiology and metabolism. There is also considerable accumulating evidence to suggest alterations to some brain functions in both normal and pathological conditions may be linked to alterations in local magnesium concentration. This book, containing chapters written by some of the foremost experts in the field of magnesium research, brings together the latest in experimental and clinical magnesium research as it relates to the central nervous system. It offers a complete and updated view of magnesiums involvement in central nervous system function and in so doing, brings together two main pillars of contemporary neuroscience research, namely providing an explanation for the molecular mechanisms involved in brain function, and emphasizing the connections between the molecular changes and behavior. It is the untiring efforts of those magnesium researchers who have dedicated their lives to unraveling the mysteries of magnesiums role in biological systems that has inspired the collation of this volume of work.
Book Synopsis Laboratory Guide to the Methods in Biochemical Genetics by : Nenad Blau
Download or read book Laboratory Guide to the Methods in Biochemical Genetics written by Nenad Blau and published by Springer Science & Business Media. This book was released on 2008-05-31 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual deals specifically with laboratory approaches to diagnosing inborn errors of metabolism. The key feature is that each chapter is sufficiently detailed so that any individual can adopt the described method into their own respective laboratory.
Book Synopsis Nutrient Metabolism by : Martin Kohlmeier
Download or read book Nutrient Metabolism written by Martin Kohlmeier and published by Elsevier. This book was released on 2003-10-01 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient Metabolism defines the molecular fate of nutrients and other dietary compounds in humans, as well as outlining the molecular basis of processes supporting nutrition, such as chemical sensing and appetite control. It focuses on the presentation of nutritional biochemistry; and the reader is given a clear and specific perspective on the events that control utilization of dietary compounds. Slightly over 100 self-contained chapters cover all essential and important nutrients as well as many other dietary compounds with relevance for human health. An essential read for healthcare professionals and researchers in all areas of health and nutrition who want to access the wealth of nutrition knowledge available today in one single source. Key Features * Highly illustrated with relevant chemical structures and metabolic pathways * Foreword by Steven Zeisel, Editor-in-chief of the Journal of Nutritional Biochemistry * First comprehensive work on the subject
Book Synopsis The Neurobiological Basis of Suicide by : Yogesh Dwivedi
Download or read book The Neurobiological Basis of Suicide written by Yogesh Dwivedi and published by CRC Press. This book was released on 2012-06-25 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: With recent studies using genetic, epigenetic, and other molecular and neurochemical approaches, a new era has begun in understanding pathophysiology of suicide. Emerging evidence suggests that neurobiological factors are not only critical in providing potential risk factors but also provide a promising approach to develop more effective treatment and prevention strategies. The Neurobiological Basis of Suicide discusses the most recent findings in suicide neurobiology. Psychological, psychosocial, and cultural factors are important in determining the risk factors for suicide; however, they offer weak prediction and can be of little clinical use. Interestingly, cognitive characteristics are different among depressed suicidal and depressed nonsuicidal subjects, and could be involved in the development of suicidal behavior. The characterization of the neurobiological basis of suicide is in delineating the risk factors associated with suicide. The Neurobiological Basis of Suicide focuses on how and why these neurobiological factors are crucial in the pathogenic mechanisms of suicidal behavior and how these findings can be transformed into potential therapeutic applications.
Book Synopsis Extrasynaptic GABAA Receptors by : Adam C. Errington
Download or read book Extrasynaptic GABAA Receptors written by Adam C. Errington and published by Springer. This book was released on 2014-09-22 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: GABA is the principal inhibitory neurotransmitter in the CNS and acts via GABAA and GABAB receptors. Recently, a novel form of GABAA receptor-mediated inhibition, termed “tonic” inhibition, has been described. Whereas synaptic GABAA receptors underlie classical “phasic” GABAA receptor-mediated inhibition (inhibitory postsynaptic currents), tonic GABAA receptor-mediated inhibition results from the activation of extrasynaptic receptors by low concentrations of ambient GABA. Extrasynaptic GABAA receptors are composed of receptor subunits that convey biophysical properties ideally suited to the generation of persistent inhibition and are pharmacologically and functionally distinct from their synaptic counterparts. This book highlights ongoing work examining the properties of recombinant and native extrasynaptic GABAA receptors and their preferential targeting by endogenous and clinically relevant agents. In addition, it emphasizes the important role of extrasynaptic GABAA receptors in GABAergic inhibition throughout the CNS and identifies them as a major player in both physiological and pathophysiological processes.
Book Synopsis Obsessive-Compulsive Disorder by : Christopher Pittenger
Download or read book Obsessive-Compulsive Disorder written by Christopher Pittenger and published by Oxford University Press. This book was released on 2017 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: Obsessive-compulsive disorder (OCD) affects one person in 40 and can cause great suffering. This volume provides the first comprehensive summary of our understanding of this enigmatic condition, summarizing current work ranging from genetics and neurobiology through cognitive psychology, treatment, personal experiences, and societal implications
