30 years old: O-GlcNAc reaches age of reason - Regulation of cell signaling and metabolism by O-GlcNAcylation

30 years old: O-GlcNAc reaches age of reason - Regulation of cell signaling and metabolism by O-GlcNAcylation PDF Author: Tony Lefebvre
Publisher: Frontiers Media SA
ISBN: 2889195910
Category : Diseases of the endocrine glands. Clinical endocrinology
Languages : en
Pages : 115

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Book Description
Hundreds post-translational modifications (PTM) were characterized among which a large variety of glycosylations including O-GlcNAcylation. Since its discovery, O-GlcNAcylation has emerged as an unavoidable PTM widespread in the living beings including animal and plant cells, protists, bacteria and viruses. In opposition to N- and O-glycosylations, O-GlcNAcylation only consists in the transfer of a single N-acetylglucosamine moiety through a beta-linkage onto serine and threonine residues of proteins confined within the cytosol, the nucleus and the mitochondria. The O-GlcNAc group is provided by UDP-GlcNAc, the end-product of the hexosamine biosynthetic pathway located at the crossroad of cell metabolisms making O-GlcNAcylation a PTM which level tightly reflects nutritional status; therefore regulation of cell homeostasis should be intimately correlated to lifestyle and environment. Like phosphorylation, with which it can compete, O-GlcNAcylation is reversible. This versatility is managed by OGT (O-GlcNAc transferase) that transfers the GlcNAc group and OGA (O-GlcNAcase) that removes it. Also, like its unsweetened counterpart, O-GlcNAcylation controls fundamental processes, e.g. protein fate, chromatin topology, DNA demethylation and, as recently revealed, circadian clock. Deregulation of O-GlcNAc dynamism may be involved in the emergence of cancers, neuronal and metabolic disorders such as Alzheimer's or diabetes respectively. This Research Topic in Frontiers in Endocrinology is the opportunity to celebrate the thirtieth anniversary of the discovery of "O-GlcNAc" by Gerald W. Hart.

30 years old: O-GlcNAc reaches age of reason - Regulation of cell signaling and metabolism by O-GlcNAcylation

30 years old: O-GlcNAc reaches age of reason - Regulation of cell signaling and metabolism by O-GlcNAcylation PDF Author: Tony Lefebvre
Publisher: Frontiers Media SA
ISBN: 2889195910
Category : Diseases of the endocrine glands. Clinical endocrinology
Languages : en
Pages : 115

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Book Description
Hundreds post-translational modifications (PTM) were characterized among which a large variety of glycosylations including O-GlcNAcylation. Since its discovery, O-GlcNAcylation has emerged as an unavoidable PTM widespread in the living beings including animal and plant cells, protists, bacteria and viruses. In opposition to N- and O-glycosylations, O-GlcNAcylation only consists in the transfer of a single N-acetylglucosamine moiety through a beta-linkage onto serine and threonine residues of proteins confined within the cytosol, the nucleus and the mitochondria. The O-GlcNAc group is provided by UDP-GlcNAc, the end-product of the hexosamine biosynthetic pathway located at the crossroad of cell metabolisms making O-GlcNAcylation a PTM which level tightly reflects nutritional status; therefore regulation of cell homeostasis should be intimately correlated to lifestyle and environment. Like phosphorylation, with which it can compete, O-GlcNAcylation is reversible. This versatility is managed by OGT (O-GlcNAc transferase) that transfers the GlcNAc group and OGA (O-GlcNAcase) that removes it. Also, like its unsweetened counterpart, O-GlcNAcylation controls fundamental processes, e.g. protein fate, chromatin topology, DNA demethylation and, as recently revealed, circadian clock. Deregulation of O-GlcNAc dynamism may be involved in the emergence of cancers, neuronal and metabolic disorders such as Alzheimer's or diabetes respectively. This Research Topic in Frontiers in Endocrinology is the opportunity to celebrate the thirtieth anniversary of the discovery of "O-GlcNAc" by Gerald W. Hart.

O-GlcNAcylation: Expanding the Frontiers

O-GlcNAcylation: Expanding the Frontiers PDF Author: Tarik Issad
Publisher: Frontiers Media SA
ISBN: 2889634256
Category :
Languages : en
Pages : 238

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Book Description


O-GlcNAcylation: Expanding the Frontiers

O-GlcNAcylation: Expanding the Frontiers PDF Author: Tarik Issad
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

The Diabetic Kidney

The Diabetic Kidney PDF Author: Pedro Cortes
Publisher: Springer Science & Business Media
ISBN: 1597451533
Category : Medical
Languages : en
Pages : 553

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Book Description
A comprehensive and authoritative survey of recent findings, ideas, and hypotheses about the causes and treatment of diabetic nephropathy. The authors cover both the basic pathogenic mechanisms of the disease, as well as many of its clinical aspects of identification, management, and new therapeutic approaches. Highlights include an entire section devoted to novel approaches to studying diabetic nephropathy with the most advanced molecular techniques, and complete descriptions of the most up-to-date views on the diagnosis and treatment of the disease. The Diabetic Kidney offers both researchers and practicing clinicians a clear understanding of the of the progress that has been made regarding the pathogenesis of diabetic nephropathy and of the therapeutic interventions needed to prevent its development or treat it.

Glycobiology of the Nervous System

Glycobiology of the Nervous System PDF Author: Robert K. Yu
Publisher: Springer
ISBN: 1493911546
Category : Medical
Languages : en
Pages : 590

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Book Description
A thorough introduction is provided to the variety and complexity of the roles that glycoconjugates play in the cells of the nervous system. Basic information as well as the latest developments in neural glycobiology are discussed. Topics covered range from the structure and metabolism of the saccharide chains and current approaches used in their study, to changes glycoconjugates undergo during development and aging of the nervous system and the roles they have in neurological disease. The breadth and depth of topics covered make it an essential reference for those new to the field as well more seasoned investigators.

RNA Metabolism in Neurodegenerative Diseases

RNA Metabolism in Neurodegenerative Diseases PDF Author: Rita Sattler
Publisher: Springer
ISBN: 331989689X
Category : Medical
Languages : en
Pages : 321

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Book Description
It has become evident over the last years that abnormalities in RNA processing play a fundamental part in the pathogenesis of neurodegenerative diseases. Cellular viability depends on proper regulation of RNA metabolism and subsequent protein synthesis, which requires the interplay of many processes including transcription, pre--‐mRNA splicing, mRNA editing as well as mRNA stability, transport and translation. Dysfunction in any of these processes, often caused by mutations in the coding and non--‐ coding RNAs, can be very destructive to the cellular environment and consequently impair neural viability. The result of this RNA toxicity can lead to a toxic gain of function or a loss of function, depending on the nature of the mutation. For example, in repeat expansion disorders, such as the newly discovered hexanucleotide repeat expansion in theC9orf72 gene found in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), a toxic gain of function leads to the formation of RNA foci and the sequestration of RNA binding proteins (RBPs). This in return leads to a loss of function of those RBPs, which is hypothesized to play a significant part in the disease progression of ALS and FTD. Other toxicities arising from repeat expansions are the formation of RNA foci, bi--‐directional transcription and production of repeat associated non--‐ATG (RAN) translation products. This book will touch upon most of these disease mechanisms triggered by aberrant RNA metabolism and will therefore provide a broad perspective of the role of RNA processing and its dysfunction in a variety of neurodegenerative disorders, including ALS, FTD, Alzheimer’s disease, Huntington’s disease, spinal muscular atrophy, myotonic dystrophy and ataxias. The proposed authors are leading scientists in the field and are expected to not only discuss their own work, but to be inclusive of historic as well as late breaking discoveries. The compiled chapters will therefore provide a unique collection of novel studies and hypotheses aimed to describe the consequences of altered RNA processing events and its newest molecular players and pathways.

Chemical Glycobiology

Chemical Glycobiology PDF Author: Randall Halcomb
Publisher:
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 348

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Book Description
This ACS symposium book on Chemical Glycobiology summarizes the current status of the chemical techniques and tools developed to study the biological roles of carbohydrates and glycoconjugates. It is suitable for chemists and biochemists who are interested in synthesizing, understanding, and applying carbohydrate-related molecules or manipulating biological systems using carbohydrates.

Oxidative Stress and Chronic Degenerative Diseases

Oxidative Stress and Chronic Degenerative Diseases PDF Author: Jose Antonio Morales-Gonzalez
Publisher: BoD – Books on Demand
ISBN: 953511123X
Category : Science
Languages : en
Pages : 516

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Book Description
This work responds to the need to find, in a sole document, the affect of oxidative stress at different levels, as well as treatment with antioxidants to revert and diminish the damage. Oxidative Stress and Chronic Degenerative Diseases - a Role for Antioxidants is written for health professionals by researchers at diverse educative institutions (Mexico, Brazil, USA, Spain, Australia, and Slovenia). I would like to underscore that of the 19 chapters, 14 are by Mexican researchers, which demonstrates the commitment of Mexican institutions to academic life and to the prevention and treatment of chronic degenerative diseases.

Principles of Nutrigenetics and Nutrigenomics

Principles of Nutrigenetics and Nutrigenomics PDF Author: Raffaele De Caterina
Publisher: Academic Press
ISBN: 0128045876
Category : Medical
Languages : en
Pages : 588

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Book Description
Principles of Nutrigenetics and Nutrigenomics: Fundamentals for Individualized Nutrition is the most comprehensive foundational text on the complex topics of nutrigenetics and nutrigenomics. Edited by three leaders in the field with contributions from the most well-cited researchers conducting groundbreaking research in the field, the book covers how the genetic makeup influences the response to foods and nutrients and how nutrients affect gene expression. Principles of Nutrigenetics and Nutrigenomics: Fundamentals for Individualized Nutrition is broken into four parts providing a valuable overview of genetics, nutrigenetics, and nutrigenomics, and a conclusion that helps to translate research into practice. With an overview of the background, evidence, challenges, and opportunities in the field, readers will come away with a strong understanding of how this new science is the frontier of medical nutrition. Principles of Nutrigenetics and Nutrigenomics: Fundamentals for Individualized Nutrition is a valuable reference for students and researchers studying nutrition, genetics, medicine, and related fields. - Uniquely foundational, comprehensive, and systematic approach with full evidence-based coverage of established and emerging topics in nutrigenetics and nutrigenomics - Includes a valuable guide to ethics for genetic testing for nutritional advice - Chapters include definitions, methods, summaries, figures, and tables to help students, researchers, and faculty grasp key concepts - Companion website includes slide decks, images, questions, and other teaching and learning aids designed to facilitate communication and comprehension of the content presented in the book

Thiamine Deficiency Disease, Dysautonomia, and High Calorie Malnutrition

Thiamine Deficiency Disease, Dysautonomia, and High Calorie Malnutrition PDF Author: Derrick Lonsdale
Publisher: Academic Press
ISBN: 0128103884
Category : Medical
Languages : en
Pages : 358

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Book Description
Thiamine Deficiency Disease, Dysautonomia, and High Calorie Malnutrition explores thiamine and how its deficiency affects the functions of the brainstem and autonomic nervous system by way of metabolic changes at the level of the mitochondria. Thiamine deficiency derails mitochondrial oxidative metabolism and gives rise to the classic disease of beriberi that, in its early stages, can be considered the prototype for a set of disorders that we now recognize as dysautonomia. This book represents the life’s work of the senior author, Dr. Derrick Lonsdale, and a recent collaboration with his co-author Dr. Chandler Marrs. Presents clinical experience and animal research that have answered questions about thiamine chemistry Demonstrates that the consumption of empty calories can result in clinical effects that lead to misdiagnosis Addresses the biochemical changes induced by vitamin deficiency, particularly that of thiamine