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Books > Medicine > Pre-clinical medicine: basic sciences > Physiology > General
Understanding the mechanisms involved in intracellular movement and localization of proteins is a central issue in cell biology. This volume is concerned with the events involved in the transport of membrane proteins, and the contents of vesicular compartments, to their ultimate destinations. In several chapters, particular attention is given to studies with viruses that are assembled by budding at specific membrane sites within the cell or at the cell surface; studies with such viral systems have provided significant insights into membrane biogenesis.
This book is dedicated to the memory of Walter Brendel, late Professor of Experimental Surgery and Chairman of the Institute for Surgical Research at the University of Munich, Germany. For 20 years Walter Brendel organized the renowned Round Table Symposium on Applied Immunology, first in Kitzbiihel and later in Axams, Austria. On the occasion of the 20th symposium in January 1989 he gathered together a number of scientists who have been leaders in the field of transplantation immunology and clinical transplantation for the past two decades. All of them had participated at previous meetings, some on a regular basis. Many of the new discoveries in applied immunology and transplantation medicine were first presented and vividly dis cussed at the Round Table Symposia. The annual Kitzbiihel! Axams meetings became well-known and invitations much sought after, not only for this reason but also because of the uniquely intimate atmosphere that promoted the free exchange of research findings and theoretical cut and thrust.
Catecholamines are important transmitter substances in the autonomic and central nervous systems. These two volumes provide a comprehensive presentation of the state-of-the-art of catecholamine research and development in the past 15 years. The volumes present in-depth reviews of topical areas of catecholamine research in which substantial progress has been made and which are of current interest to various theoretical and clinical disciplines. Each topic has been dealt with by an established expert. Clinical subjects of relevant importance are included. Catecholamines are of interest in pharmacology, physiology, biochemistry, as well as in neurology, psychiatry, internal medicine (cardiology, hypertension, asthma), ophthalmology and anesthesiology.
Recent years have witnessed an explosion of knowledge lea- ding to a molecular understanding of the mechanisms of ac- tion of calcium on excitation and contraction coupling and its role in the regulation of contractility. This book highlights the most recent progress as well as providing a historial perspective of the field. It presents a concise and comprehensive overview of our current knowledge regar- ding calcium channels and regulatory proteins as well as in- tracellular calcium handling and the mechanisms underlying the activation of contractile proteins. It also describes how these basic mechanisms have been adapted in various types of muscle, especially in cardiac and smooth muscle.
th This volume contains selected lectures presented at the 12 International Conference on Advances in Prostaglandin, Leukotriene and Other Bioactive Lipid Research: Basic Science and Clinical Applications which was held in Istanbul, Turkey, on August 25-29, 2002. This meeting brought together basic and clinical scientists for the purpose of discussing advances in bioactive lipid research with.special attention to cancer, cardiovascular diseases, gastrointestinal diseases and respiratory diseases. Topics covered included: the role of leukotrienes and lipoxins in of inflammation, the cytochrome P450 pathway, the genetics and genomics bioactive lipids, lipid peroxidation, apoptosis, angiogenesis, isoprostanes, receptors and inhibitors, cyclooxygenase and lipoxygenase pathways and inhibitors, prostaglandin synthases and receptor signaling, phospholipases and inhibitors. Sessions included plenary lectures with expertise in particular areas, oral presentation on selected topics and general poster sessions. J.M. Drazen (Boston, USA) discussed anti-leukotriene treatment in asthma patients while C. Brink (paris, France) presented the recent advances in leukotriene receptors. The recent advances in cytochrome p450 pathway described in the session organized by J.C. McGiff (Valhalla, NY, USA). T. Shimizu (Tokyo, Japan) and M. Balazy (Valhalla, NY, USA) gave an update on phospholipases and arachidonic acid peroxydation. The editors are greatful to the Organizing, Programme and Advisory Committees for their valuable contributions. We greatfully acknowledge the generous financial support provided by PharmaciaIPfizer, Fako Pharmaceuticals Inc. and Novartis Pharmaceuticals Inc. ofthe contributors to this volume, in particular We are also greatful to all to those who delivered their manuscripts by or before the requested deadline.
The Taurine Symposium- "Taurine: Beginning the 21'' Century"- was held September 20-23, 2002, on the beautiful island of Kauai in Hawaii. The headquarters of the meeting was the Radisson Kauai Beach Resort. This international meeting was attending by approximately 80 individuals from 23 nations and 4 continents. Seventy-five papers were presented either as platform presentations or poster presentations. Taurine, first isolated from ox bile in 1827 by Tiedemann and Gmelin and named in 1838 by Demarcay, became of significant scientific interest in 1968 when the first extensive review article was published by Jacobsen and Smith. Interest in taurine grew exponentially after 1975 when the first taurine symposium was organized by Ryan Huxtable in Tucson, Arizona. Since that date, taurine symposia have been held approximately every two years held in various cities and resort areas around the world. Taurine investigators have had the privilege of attending these scientific meetings on three continents - Asia, Europe, and North America. Since the initial meeting in 1975, a central question addressed during many of the symposia has been: "What is physiological, pharmacological, nutritional, and pathological role of taurine?". Although taurine has been established as an important osmolyte, it appears to affect many other biological processes. However, the exact mechanism(s) by "which taurine acts" has not yet been definitively answered. In Kauai, the patticipants discussed many topics and asked many questions regarding the role and actions of taurine.
When survival is challenged by the cold, animals react by employing both behavioral and physiological solutions. Depending on the magni tude of the cold stress and the nature of the adjustment, simple avoidance or sophisticated capacity or resistance compensations may be used. Thus, migration, shelter seeking, metabolic and insulative compen sation, torpor, and freezing avoidance and tolerance are successful tac tics used by diverse groups of animals. To understand and appreciate the benefits of these tactics, it is necessary to examine not only the well being of the whole animal but also their basic underlying mechanisms. In ad dition, it is also of fundamental importance to grasp how seasonal cold affects the survivorship and reproductive success of populations when confronted by a general reduction in primary productivity and an elevated energy cost for maintenance (e. g. in endotherms). In this regard, a synthetic overview which integrates aspects of cell biology, biochem istry, physiology, neurobiology, behavior, and population biology should be a fruitful approach in providing a holistic understanding on how animals adapt to cold. The present volume is an attempt to achieve such an overview; its objective is to provide a depth and breadth of coverage that is essential to a full appreciation of animal adaptation to cold. It is the hope of the contributing authors that this book will serve as an effective reference text for all senior undergraduate and graduate students as well as research scientists with an interest in cold physiology."
At one time or another, everyone has said "I am thirsty". Yet what causes this sensation of thirst? It is obvious that a certain quantity of fluid must be present for the body to function normally. How does a water deficit in the body then influence drinking habits? But supposing the physiological need is met, what about the psychological need or social need? Water is certainly the most necessary fluid; then why do we humans often prefer other beverages, even at great cost of effort or money or health? The subject of thirst and drinking behavior are uniquely discussed in this book. For the first time both the physiological and the psychological aspects of water and beverage consumption are examined in one volume. The many recent developments concerning how a lack of water is signalled physiologically and processed neurally to affect drinking behavior are critically surveyed. Prospects for understanding the cultural and sensory influences on beverage consumption are mapped out. The thirty-one chapters by authorities in the field were all mutually reviewed and revised in the light of precirculated comments and round-table discussions. Together they provide a complete picture of the current state of knowledge on what determines fluid consumption in human beings and animals.
This second volume in Modern Methods of Plant Analysis, New Series concentrates on nuclear magnetic resonance (NMR) spectroscopy, a powerful technique that is now being used for plant studies in a major way. This is the first time that a series of chapters by leading experts on the application of NMR to plant cells has been assembled in a single volume. The methods are described in detail so that even beginners can apply them directly in the laboratory. Topics include general metabolism in higher plants and fungi, intercellular pH, energy status, DNA structure analysis, multiple quantum two-dimensional NMR spectroscopy, chloroplast orientation, rubber analysis, and the use of NMR to determine pollen viability. This volume should provide not only an excellent practical guide to the possibilities of NMR application to the plant sciences, but also give impetus to its future use.
Recent research has given great insight into the physiological and pharmaceutical effects of histamine on the central nervous system and especially on the brain. This volume focuses on these many new findings, including the role of brain histamine in the arousal system, learning, and memory. Also featured are the mechanisms of histamine release in bone marrow and mast cells and the role of histamine in neutrophil differentiation. These are analyzed using the most up-to-date techniques of molecular pharmacology and refined immunoelectroscopy. In addition, the pharmacological profiles of newly developed H1 antagonists are described, making this book invaluable to those who want to understand the very latest advances in histamine research.
Well over one decade has passed since the appearance of the original four volumes of Membrane Transport in Biology. Since the publication of the last volume there have been spectacular advances in this field. These advances have been in part the result of the application of exciting new methodologies, and in part the result of new insights into the regulation and integration of transport processes. This volume, as well as a sixth volume, which is in preparation, are intended to cover key areas in which the development has been particularly striking. For many years the trend in studies of membrane transport had been that of increasing specialization with regard to the transporter of interest and of the cell or tissue studied. This trend was supported by the enormous number of publications directed at understanding the cellular physiology of specific organ systems and tissues, and also by the fact that different tissues often seemed to react so differently to the same conditions that mechanisms unique to each appear to be at play. One of the happy developments in recent years has been the realization that this apparent disparity of behaviors in different tissues is based on varying combinations of a limited number of transport mechanisms, all mediated by the same or similar proteins. Some of these transport proteins have already been isolated and analyzed with respect to amino acid sequence whereas others are just entering this phase.
Major epidemiologists from the UK, USA and Europe contribute to the first ever, much needed comprehensive review of the epidemiology of peripheral vascular disease in the lower limbs.
During the last years much attention has been given to the investigation of the roles of specific growth modulators acting on liver cell populations. HGF functions as a pleotropic factor in the liver as well as in other extrahepatic tissues. The hepatic stem cell compartment is thought to play a major role in liver tissue restoration. Mechanisms of cell growth and cell death of the liver are described in detail, with particular emphasis on apoptosis. The functions of HBV-pX protein and the roles of hepatitis B virus gene expression relation to hepatocellular carcinoma are discussed. Techniques for obtaining human and nonhuman hepatocytes and other liver cell types and for efficient transfer and expression of genes in hepatocytes and liver-derived cell lines are presented.
The methods of molecular biology, biochemistry, immunocytochem istry, and in-situ hybridization introduce new opportunities for the classification and functional characterization of cell receptors under normal conditions and for a better understanding of pathogenetic mechanisms in human diseases. The cellular localization and trans location of receptor proteins can be identified using morphological methods, and it is apparent that receptors and receptor defects play an important role in pathology, notably in genetic diseases, endocrine disorders, atherosclerosis, infections, and cancer. In this volume in ternational experts give a current review of the morphology and pathological aspects of cell receptors. The complex communication of multicellular organisms is coordi nated by two regulatory systems: neural and humoral. Both systems function via signaling substances (ligands) and signal-recognizing and -transmitting molecules, called receptors. The historical develop ment of the receptor concept is based upon Paul Ehrlich's theory of "receptors in the immune system," Langley's "receptive substances in postssynaptic membranes," and Earl Sutherland's discovery of "sec ond messengers" (cAMP and Ca2])."
After a little more than 20 years since the original discovery of neuropeptide Y (NPY) by Tatemoto and colleagues, the field of NPY research has made remarkable progress and is coming of age.The present volume addresses all major topics in connection with NPY and related peptides by established leaders in their respective areas. Experienced NPY-aficionados will certainly find new and useful additional information in this volume and newcomers to the field will hopefully discover how much exciting research this still has to offer.
Atherosclerotic cardiovascular disease remains the major cause of death and disability in Western society. The field of atherosclerosis research has grown tremendously over the last forty years, shedding a great deal of light on the contributing factors and natural history of the disorder and enabling strategies for its treatment and prevention. Some of the greatest strides in this field in recent years have derived from advances in molecular biology techniques. These strides were chosen for emphasis in the most recent Princess Lilian symposium, whose proceedings this volume represents. Historically, the Princess Lilian meetings have been small ones aimed at bringing together investigators from diverse specialties to discuss a particular subject. The most recent meeting was no exception and included clinicians, clinical investigators, and research ers in basic science. The symposium began with an extensive review of coronary morphopathological findings in patients who died of coronary heart disease. Any rational hypothesis of atherogenesis must take into account clinical findings, and any attempt to bridge the gap between experimental laboratory findings and studies in man is highly desirable. Three chapters focus on endothelial injury: one on the nitric oxide pathway in physiology and pathology, a second on the activation of endothelial cells, and a third on the monocyte and endothelial injury. Still another chapter examines growth factors, in particular the fibroblast growth factor in atherogenesis."
ILSI Human Nutrition Reviews provide an account of current thought in the field under review and point to problems and questions yet to be elucidated. They are intended to fill the gap between the textbook on the one hand and the specialist publication on the other. They are written by leading international authorities and are reviews for workers in the medical, nutritional and allied sciences rather than the expert. Dietary Starches and Sugar in Man presents the latest thinking of leading research scientists in a unique, multi-authored book. Leading European experts have collaborated to prepare a multi-disciplinary update on the subject. Each chapter was submitted to peer review by every other author, after which the commentaries were either incorporated into a revision of the original text or added at the end of the chapter. In many cases the group discussion raised new points, so that the final product truly represents a complete picture of international expertise. This book thus gives nutrition experts in the medical sciences and the food industry all current information on the latest research, and the critiques of this research, concerning these two groups of carbohydrates.
This section will consider the structure and function of muscle receptors, as well as the central nervous system mechanisms with which they are concerned. In volume I of this Handbook, receptor mechanisms are discussed in detail. Also, the crustacean stretch receptor and the frog muscle spindle have been considered. The present section will be concerned with vertebrate muscle receptors with an emphasis on mammals. Muscle receptors provide interesting examples of specialized mechanorecep tors. The muscle spindle is a striking case of a receptor which is regulated in its function by the central nervous system in efferent neurons. Muscle receptors have long been known to playa crucial role in the reflex regulation of movement. In recent years it has become apparent that these receptors are also important in sensory phenomena such as the perception of position and movement. St. Louis, July 1974 c.c. HUNT Contents Chapter I The Morphology of Muscle Receptors. By D. BARKER. With 99 Figures . . . . . . . . . . . . . . . .. 1 Chapter II The Physiology of Muscle Receptors. By C.C. HUNT. With 21 Figures . . . . . . . . . . . . . . . . . 191 Chapter III Central Actions of Impulses in Muscle Afferent Fibres. By A. K. McINTYRE. With 8 Figures 235 Author Index 289 Subject Index 299 List of Contributors BARKER, David Department of Zoology, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, Great Britain HUNT, Carlton C. Department of Physiology and Biophysics, Washington University, School of Medicine, 660 South Euclid Avenue, St. Louis, Mo. 63110, USA McINTYRE, A. K."
Glutamine is a key aminoacid for the synthesis of numerous biologic- ally important compounds in mammalian cells and is a carrier form of ammonia. The advance in knowledge on the metabolic significance of this amino acid is presented in in-depth treatments by experts in this active research field. This includes the enzymology of glutamine synthe- tase and glutaminase activities in different mammalian organs, notably liver, kidney and brain; properties of glutamine transport across bio- logical membranes; role of glutamine metabolism in the liver, with emphasis on the recent discovery of intercellular heterogeneity with respect to enzyme distribution and its functional consequences for ammonia/urea metabolism and pH regulation; renal and intestinal glutamine metabolism; cerebral glutamine/ glutamate interrelationships; skeletal muscle; role of glutamine in cell culture; and finally the clinical aspects, including the new outlook of glutamine antagonists in cancer therapy as well as the role of glutamine in hepatic coma and encephalo- pathy. Some, but not all, of the contributors to this work attended the 48th Conference of the Gesellschaft fur Biologische Chemie on glutamine metabolism held in Gottingen, W. Germany, in September 1983. This conference was supported by the Stiftung Volkswagenwerk, Dr. H. Falk Foundation, Freiburg, and the J. Pfrimmer Co. , Erlangen. The abstracts of the contributions to the conference were published in Hoppe-Seyler's Z. Physiol. Chem. 364,1237-125,6,1983, and this book is not intended as the proceedings of that meeting.
Taste receptors monitor the quality of all the food ingested. They are intimately involved in both food acceptance and rejection. The sensation of taste is also important in the regulation of many specific chemicals necessary for maintenance of the body. For example, disturbance of the adrenal glands results in a change in the intake of salt which is necessary for regulation of the sodium balance. Curt Richter's early studies on specific hungers and preference thresholds initiated a large number of studies in this field. The relationship between taste and food intake is now well recognized by physiologists, psychologists and nutritionists. Our current concepts of the neural coding of taste quality and intensity are largely based upon the classical paper by PFAFFMANN in 1941. Many subsequent single nerve fiber studies have added to our understanding. In recent years Zotterman and Diamant have successfully recorded from the human taste nerves as they pass through the middle ear. This allowed them to study the relationships between the response of taste receptors and the resultant taste sensation. No similar feat has yet been accomplished with the visual and auditory systems.
The serene phrase, Lest I forget thee, glutathione ..., coined by the Kosowers (1) to describe the state in the 1960's, must be replaced now by something like "Inevitable GSH" in order to characterize the current situation. The surge in interest on the ubiquitous tripeptide has been ama- zing, with publications on GSH running at rates as high as one per day, so that it seemed appropriate to convene international experts for a discussion of recent develop- ments this year. Unlike the two previous meetings in this decade held in Tlibingen in 1973 (2) and in santa Ynez in 1975 (3), the scope was restricted to Functions of Gluta- thione in Liver and Kidney. Only in this way did an in-depth discussion of the current state of knowledge in a limit- ed topic appear possible. The last couple of years have seen a fascinating pro- ductivity in the fields of (a) Regulation of the Glutathione Level in the Liver, (b) Role of y-Glutamyltransferase in Gluta- thione Turnover with emphasis on the renal enzyme, and a critical appraisal of the y-Glutamyl Cycle, (c) Hyd:roperox- ide and Disulfide Metaholism, enriched by the discovery of the nonseleniurn-dependent glutathione peroxidase activ- ity and its relation to the glutathione-S-transferases, and the participation of the 2GSH/GSSG system in redox transitions in intact organ, cells and isolated mito- chondria, and (d) a multitude of Pharmacological and Toxi- cological Aspects related to glutathione, mainly centered on the events leading to liver damage and the protective |
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