Author: Wilson Savino Publisher: Frontiers Media SA ISBN: 2889630269 Category : Languages : en Pages : 110
Book Description
Thymus physiology and T-cell homeostasis are controlled by hormones, neurotransmitters, cytokines and other factors that modulate stromal-cell interactions, influence thymocyte development and selection processes, survival and migration, between others. In the context of this Research Topic on “Hormones, Neurotransmitters, and T cell development in Health and Disease”, authors discuss the control of thymus physiology by glucocorticoids (GC), growth hormone (GH) and sex hormones, norepinephrine (NE) and other molecules that seem impact upon thymocyte/microenvironmental interactions, like galectin-3 (Gal-3) ephrins (Eph), extracellular matrix proteins and integrins (like VLA-5). Moreover, some of them draw attention to about how diverse maturation steps and/or the interactions between stromal and thymocytes can be affected in pathological states like diabetes or infections. As shown schematically in the figure, this topic highlight the following notions: 1) GH shows counterregulatory effects against GC rather than influence directly T cell homeostasis; 2) Interactions between sex hormones and noradrenergic secretion may influence thymus homeostasis and involution; 3) Gal-3 are crucial to thymocyte-stromal cell interactions and influence thymic architecture. Moreover, Gal-3 seem to be involved in the regulation of steroidogenic pathway; 4) Ephrins are crucial to assembly the thymic connections between thymocytes and the epithelial network, but have a relative importance in supporting normal thymopoyesis; 5) Pathologic situations like diabetes, or infectious diseases caused by parasites or bacteria alters the normal development of T-lymphocytes and might influence tolerance process. DN: double-negative (CD4-CD8) thymocytes; DP: double-positive (CD4+CD8+) thymocytes; SP: simple-positive thymocytes; LT: T lymphocyte; FN: fibronectin; PVS: peri-vascular space; BM: bone marrow; DBT: diabetes; Eph: Ephrins.
Author: National Academy of Sciences Publisher: National Academies Press ISBN: 0309045290 Category : Medical Languages : en Pages : 195
Book Description
The brain ... There is no other part of the human anatomy that is so intriguing. How does it develop and function and why does it sometimes, tragically, degenerate? The answers are complex. In Discovering the Brain, science writer Sandra Ackerman cuts through the complexity to bring this vital topic to the public. The 1990s were declared the "Decade of the Brain" by former President Bush, and the neuroscience community responded with a host of new investigations and conferences. Discovering the Brain is based on the Institute of Medicine conference, Decade of the Brain: Frontiers in Neuroscience and Brain Research. Discovering the Brain is a "field guide" to the brainâ€"an easy-to-read discussion of the brain's physical structure and where functions such as language and music appreciation lie. Ackerman examines: How electrical and chemical signals are conveyed in the brain. The mechanisms by which we see, hear, think, and pay attentionâ€"and how a "gut feeling" actually originates in the brain. Learning and memory retention, including parallels to computer memory and what they might tell us about our own mental capacity. Development of the brain throughout the life span, with a look at the aging brain. Ackerman provides an enlightening chapter on the connection between the brain's physical condition and various mental disorders and notes what progress can realistically be made toward the prevention and treatment of stroke and other ailments. Finally, she explores the potential for major advances during the "Decade of the Brain," with a look at medical imaging techniquesâ€"what various technologies can and cannot tell usâ€"and how the public and private sectors can contribute to continued advances in neuroscience. This highly readable volume will provide the public and policymakersâ€"and many scientists as wellâ€"with a helpful guide to understanding the many discoveries that are sure to be announced throughout the "Decade of the Brain."
Author: Richard E. Brown Publisher: Cambridge University Press ISBN: 9780521426657 Category : Medical Languages : en Pages : 434
Book Description
This book is designed as an introductory text in neuroendocrinology; the study of the interaction between the brain and endocrine system and the influence of this on behaviour. The endocrine glands, pituitary gland and hypothalamus and their interactions and hormones are discussed. The action of steroid and thyroid hormone receptors and the regulation of target cell response to hormones is examined. The function of neuropeptides is discussed with respect to the neuroendocrine system and behaviour. The neuroimmune system and lymphokines are described and the interaction between the neuroendocrine and neuroimmune systems discussed. Finally, methods for studying hormonal influences on behaviour are outlined. Each chapter has review and essay questions designed for advanced students and honours or graduate students with a background in neuroscience, respectively.
Author: Perminder S. Sachdev Publisher: CRC Press ISBN: 0203970977 Category : Psychology Languages : en Pages : 359
Book Description
When confronted with a neurological or psychiatric disorder in an elderly individual, a clinician or researcher is likely to ask how the processes of ageing have influenced the aetiology and presentation of the disorder, and will impact on its efficient management. There are many urban myths about ageing, and some of these apply to the brain. The reviews included in this book are an attempt to flush out some of these myths, and arm the clinician and general researcher with the empirical facts that can be mustered to substantiate claims about ageing. There are many salient questions: is cognitive change to be expected in an elderly individual? Is this change progressive, relentless and unselective, or is it focal and constrained? Would every person who lived long enough develop Alzheimer’s disease? Do our neurones die as we get old? What happens to the size of the brain and its metabolic activity? How do our hormones change with age? Can anti-oxidants slow or even stop the process of ageing? Are genes important in the ageing brain or is it all in the environment? How much of what we are is due to what we eat? The contributors to this book, each an expert in their field, have addressed some of these questions in a language simple enough for a general reader to understand. The book also deals with some of the most prominent brain disorders of old age - Alzheimer's disease, Parkinson's disease, vascular dementia, and depression. The focus is on the impact of ageing on these disorders. The discussions lay out a broad map for the clinician dealing with neuropsychiatric disorders, and the future researcher of brain ageing. In a field in which the developments are too numerous for any one individual to keep pace with, this book presents up-to-date summaries that can be a useful starting point. The field of brain ageing abounds in tabloid science. This book counters this by providing a strong empirical grounding and considered synthesis of the research.
Author: Toshiyuki Fukada Publisher: Springer Nature ISBN: 9811505578 Category : Medical Languages : en Pages : 412
Book Description
This book, now in an extensively revised second edition, describes the crucial role of zinc signaling in biological processes on a molecular and physiological basis. Global leaders in the field review the latest knowledge, including the very significant advances in understanding that have been achieved since publication of the first edition. Detailed information is provided on all the essentials of zinc signaling, covering molecular aspects and the roles of zinc transporters, the zinc sensing receptor, and metallothioneins. Detection techniques for zinc signals, involving genetically encoded and chemical probes, are also described. The critical contributions of the zinc signal in maintaining health and the adverse consequences of any imbalance in the signal are then thoroughly addressed. Here, readers will find up-to-date information on the significance of the zinc signal in a wide range of conditions, including cardiovascular disorders, neurodegenerative diseases, diabetes, autoimmune diseases, inflammatory conditions, skin disease, osteoarthritis, and cancer. The book will be of value for researchers, clinicians, and advanced students.
Author: Mia Levite Publisher: Springer Science & Business Media ISBN: 3709108888 Category : Medical Languages : en Pages : 374
Book Description
“Nerve-Driven Immunity: Neurotransmitters and Neuropeptides in the Immune System” summarizes, analyzes and sheds new light on an unrecognized, yet very important role of key neurotransmitters and neuropeptides in the immune system. Each chapter of the book deals with a different neurotransmitter/neuropeptide from the following list: Dopamine, Adrenaline, Noradrenaline, Acetylcholine, Glutamate, GABA, Somatostatin, Neuropeptide Y (NPY), Vasoactive intestinal polypeptide (VIP), Calcitonin gene related peptide (CGRP), Opioids and Cannabinoids. For each of these neurotransmitters/neuropeptides, the following four topics are discussed: The specific receptors for the neurotransmitter/neuropeptide expressed in various types of immune cells The direct effects induced by the neurotransmitter/neuropeptide in various types of immune cells (either resting or activated), and the specific immune functions and features it activates/elevates or rather inhibits in specific concentrations The production of the neurotransmitter/neuropeptide in, and its release by, various types of immune cells The involvement of the neurotransmitter/neuropeptide in various diseases of the immune system (among them autoimmune diseases, immunodeficiency diseases and hematological cancers) The book includes many original figures, overview tables, and proposed models of events which are instrumental, enriching and stimulating for the reader. In light of the above-mentioned aspects, “Nerve-Driven Immunity: Neurotransmitters and Neuropeptides in the Immune System” is ideally suited as a textbook for new courses in Immunology, Neurology, Neuro-immunology or Pharmacology. The book chapters were written by highly skilled authors from 10 countries: the USA, the United Kingdom, Italy, Israel, Sweden, France, Germany, Spain, Serbia and Romania. “Nerve-Driven Immunity” is a term first coined by Dr. Mia Levite (the editor of the book).
Author: Rolf C. Gaillard Publisher: Karger Medical and Scientific Publishers ISBN: 3805572824 Category : Medical Languages : en Pages : 144
Book Description
Interactions between the immune, endocrine and nervous systems seldom appear as main issues in the neurosciences and in immunology. So far this was most likely due to the need to focus on the molecular and cellular bases of single neural, endocrine and immune processes. But hormones, neurotransmitters and neuropeptides can also influence more subtle mechanisms underlying immune cell activity. The contents of this volume aim at listing some aspects which show that not only the bases for neuroendocrine control of more refined mechanisms related to the organization and functioning of the immune systems to exist, but also that the immune system can actively communicate with neuroendocrine structures. The evidence is divided into three categories: - Anatomical, cellular and molecular bases for the exchange of information between immune, endocrine and neural cells, - reciprocal effects between immune and neuroendocrine mechanisms, and - immune-neuroendocrine regulatory circuits. Immunologically triggered neuroendocrine responses can be either beneficial or deleterious for the host. A systematic approach would imply the simultaneous evaluation of neuroendocrine and immune parameters and thus provide the basis for therapeutic interventions based on antagonizing or blocking undesirable effects.
Author: Irwin B. Levitan Publisher: Oxford University Press, USA ISBN: 9780195145236 Category : Language Arts & Disciplines Languages : en Pages : 640
Book Description
Intended for use by advanced undergraduate, graduate and medical students, this book presents a study of the unique biochemical and physiological properties of neurons, emphasising the molecular mechanisms that generate and regulate their activity.
Author: Wilson Savino
Author: National Academy of Sciences
Author: Kinji Yagi
Author: Richard E. Brown
Author: Perminder S. Sachdev
Author: Zhi-Gang Zhang
Author: Toshiyuki Fukada
Author: Mia Levite
Author: Rolf C. Gaillard
Author: Irwin B. Levitan