The function of the vestibular system is not as obvious as those of vision, hearing, touch or smell. Vestibular dysfunction, however, is clearly apparent where lesions are present. It is probably for this reason that the vestibular sense was not discovered until the nineteenth century and that clinicians have continued to playa major role in basic vestibular research right up to the present. The relationship between basic and clinical research is certainly stronger in the vesti bular field than in that of tactile sensation, for instance, as testified by the work of clinicians as MENIERE, BREUER, BARANY, DEKLEIJN and FRENZEL. In this respect the situation is similar in vestibular physiology and in endocrinology, and for the same reason. This second part of the vestibular volume of the Handbook of Sensory Physio logy will be of interest to neurologists, otologists, neurosurgeons, ophthalmologists and physiotherapists on the one hand, and psychologists, physiologists, engineers and aviation specialists on the other. For a full understanding of Part 2, it is necessary to have assimilated the basic anatomy, physiology, and biochemistry of Part 1."

Coronary circulation research is advancing at a rapid rate. Not only are inno vative techniques for studying myocardial perfusion being developed, new mechanisms related to coronary blood flow control and mechanics are also being discovered. The progress in this field justifies an update in the form of this new monograph. The book is divided into the following sections: "Measurement of Coronary Blood Flow and Assessment of Myocardial Per fusion" discusses advances in perfusion measurements in humans as well as nonradioactive microsphere methods. . "Coronary Flow Dynamics" elucidates the effect of heart contraction on coronary flow, perfusion, and reserve distribution as well as systolic-diastolic interaction. Models-a frequent topic of debate-are used to quantify hypotheses. "Models of Coronary Circulation" attempts to elucidate the concept of tissue pressure. "Regulatory Mechanisms of Coronary circulation and its Clinical Relevance" N u.merous mechanisms affecting coronary flow have been defined and studied at the level of isolated vessels and whole organs. The chapters in this section provide an in-depth analysis of a selection of these mechanisms and their inter actions. "Pathophysiology of Coronary Circulation in Ischemic Heart Disease" considers important aspects of factors which restrict perfusion of the myocardium in ischemic heart disease. An understanding these factors is of crucial importance in the management of patients. "Small Vessel Disorder in Coronary Circulation" describes circulatory flow and how it can be influenced by drugs."

This volume contains the manuscripts of the full papers and posters pre- sented at the conference "Dietary Phenylalanine and Brain Function," which took place at the Park Hyatt Hotel, Washington, D.C., on May 8-10, 1987. The conference was organized by a committee that included Drs. Louis Elsas (Emory University, Atlanta), William Pardridge (UCLA), Timothy Maher (Massachusetts College of Pharmacy), Donald Schomer (Harvard), and Richard Wurtman (MIT). It was sponsored by the Center for Brain Sciences and Metabolism Charitable Trust, a foun- dation which, during the past few years, had also organized seven other conferences related to interactions between circulating compounds (drugs, nutrients, hormones, toxins) and brain function. The Center's most recent other conferences were on "Melatonin in Humans" (Vienna, Austria; November 1985) and "The Pharmacology of Memory Disorders Associ- ated with Aging" (Zurich, Switzerland; January 1987). The decision to organize this conference was based on the perception that major changes had recently occurred in society's uses of phenylalanine and phenylalanine-containing products, and on the belief that a meeting of scientists and physicians who work on the amino acid's neurological effects could both catalyze additional research on these effects and assist regula- tory bodies in formulating appropriate public policies relating to the use of these products: phenylalanine, in both its L- and D-forms, has apparently become a popular sales item at "health-food" stores, and thus is now being consumed by a fairly large number of people, in the absence of the other

While emphysema and chronic bronchitis are primarily lung di seases, one of their major consequences is to deeply affect the function of the respiratory muscles. Lung hyperinflation shortens the inspiratory muscles due to increased airways resistance, more of their effort is demanded and changes in nutritional status wea ken them further. Their malfunction can lead to severe dyspnea and to failure of the ventilatory pump. Over the last 10 years we have witnessed an explosion of information of how respiratory muscles function in health and disease, new techniques for their evaluation have been created, the concept of fatigue, weakness, and failure was developed, and their rest or training was attemp ted. The implication of respiratory muscles malfunction in respi ratory medicine has reached a prominent place. It seems remarkable that while some aspect of skeletal muscles function requires molecular biology techniques to find new an swers, we still know little on respiratory muscles interaction, stra tegies of coordination, their role in dyspnea, chronic hypercapnia or how to effectively improve their function in patients. This workshop was organized and held at the Medical Center of Rehabilitation in Montescano and represents an attempt to focus on how the newly adquired wealth of information can eventually be trasformed into medical care. The particpants in this workshop brought forward challenging thoughts and we are most grateful for their participation. This book represents a report of the proceedings and also provides the most updated information in this field.

The recent interest in the pharmacology of the skin and the treatment of its diseases has come about for two reasons. The first is a realisation that many aspects of pharmacology can be studied as easily in human skin as in animal models, where they may be more relevant to human physiology and disease. Examples of this are the action of various vasoactive agents and the isolation of mediators of inflammation after UV irradiation and antigen-induced dermatitis. The second reason is the fortuitous realisation that a pharmacological approach to the treatment of skin disease need not always await the full elucidation of aetiology and mechanism. For example, whilst the argument continued un resolved as to whether the pilo-sebaceous infection which constitutes acne was due to a blocked duct or to a simple increase in sebum production, 13-cis retinoic acid, was found quite by chance totally to ablate the disease; again, whilst cyclosporin, fresh from its triumphs in organ transplantation, has been found able to suppress the rash of psoriasis, it has resuscitated the debate on aetiology. We are therefore entering a new era in which the pharmacology and clinical pharmacology of skin are being studied as a fascinating new way of exploring questions of human physiology and pharmacology as well as for the development and study of new drugs, use of which will improve disease control and at the same time help to define pathological mechanisms.

Who said learning A&P can't be fun? The Anatomy and Physiology Learning System, 4th Edition makes it easy to learn normal structure and function of the body, and summarizes the common disorders found in each body system. Written by well-known educator Edith Applegate, this book combines clear, crisp writing with hundreds of vibrant illustrations. This edition includes a stronger emphasis on medical vocabulary, so you understand key terms before you learn anatomy. A wide array of engaging features simplifies physiology concepts, and an Evolve website supports the book with a wealth of new learning opportunities. Even if you have little or no background in science, you will learn the A&P you need to enter your career! A clear and concise writing style makes the book easy to read and understand, even if you have a limited background in science. Quick Check questions let you check your comprehension at various points within a chapter. Chapter quizzes provide recall, thought, and application questions to check your understanding of A&P concepts. An Evolve website includes online tutoring, a Body Spectrum coloring book, Anatomy & Physiology Pioneers boxes with brief biographies of trailblazers in science and medicine, 3-D animations, an audio glossary, Spanish pronunciations of key terms, and frequently asked questions. Outlines and objectives at the beginning of each chapter help you prioritize your study. Key terms are highlighted to help you analyze, pronounce, and spell important medical words. A glossary provides definitions and a pronunciation guide for key terms. Functional Relationships pages illustrate the connection between each individual system and the other body systems, showing how all systems work together. Representative Disorders describe the common health issues associated with each body system. Focus on Aging boxes describe the effects of aging on body systems. Quick Applications boxes connect the material to real-world scenarios. From the Pharmacy boxes describe common medications for each body system and include a brief description of the drug and its action, common uses, and abbreviations. 100 new high-quality illustrations help you visualize anatomical features and physiological processes. Chapter summaries and vocabulary quizzes have been added to the end of each chapter. New Building Your Medical Vocabulary section covers the history of medical words, giving you the building blocks to use and recognize new terms.

Morphology and physiology are two fields which cannot be separated. This statement needs to be amplified: purely factual results of a morphological or physiological nature only have real value when they are gained in the context of certain guiding, embracing questions. By themselves they are mostly of little value, because only a guiding hypothesis or theory is of any importance. Equally, a physiological question will always raise questions as to the morphological substrate, and vice versa. Thus, Wiedemann's discovery, for instance, that the visual cells in each ommatidium of the dipterans have differing fields of vision has revived the question as to what the optical properties of individual visual cells, and the complete ommatidium, might be and how neighboring ommatidia interact. These questions in turn led to that of the morphological, neuronal wiring diagram of the visual cells in the optical ganglia. Within the realm of invertebrates, the morphological and physiological problems of visual perception have been resolved in very different ways on various levels, from the photo receptor to higher centers; despite many investigations, however, there remain unsolved problems. The first chapter of Vol. VII/6B deals with the neuroarchitecture in the visual system of two groups: crustaceans and insects. These systems are best known through recent investigations. The second chapter is devoted to the neural principles in the visual system of insects. It could not have been written without parallel research into morphology."

Recent publications have addressed specific aspects of the endothelins, such as their roles in disease or the importance of endothelin receptors. However, in this book the entire field of endothelins is covered. This includes the pathways of endothelin production and their regulation, the local and systemic actions of endothelins, receptors for the endothelins and the signalling pathways employed, and the involvement of endothelins in a range of diseases. Attention is also paid to the development through chemistry, pharmacology and toxicology of endothelin antagonists and endothelin-converting enzyme inhibitors, with mention of all the important members of these drug classes. This leads to well-rounded discussions of the potential therapeutic benefit of endothelin inhibitors.

This volume emphasizes the comparative approach to under standing vertebrate renal function. I am convinced that this approach is of particular value in understanding both the details of renal function at the cellular and subcellular levels and the renal role in regulating fluid volumes and solute concentrations. My exposure to this approach first occurred during a student research experience in the laboratory of Wilbur H. Sawyer, who also provided an introduction to the works of Homer W. Smith and August Krogh. The importance of this approach was reinforced by doctoral and postdoctoral research in the laboratory of Bodil Schmidt-Nielsen. It has been confirmed through years of personal experience since then. My research and my understanding of renal function have been aided through the years by collaboration and discussion with numerous students and associates. Of particular impor tance in developing my views on comparative renal function, and especially on the relationship of structure to function, has been my long association with my colleague and friend, Eldon J. Braun. Donald S. Farner, who suggested the writing of this volume, provided valuable editorial assistance. Much of my personal research in this area has been supported over the years by grants from the United States National Science Foundation and National Institutes of Health. The writing of this volume was completed while I was in Wiirzburg, Federal Republic of Germany, supported by a Senior U.S. Scientist Award from the Alexander von Humboldt Foundation."

"Immunopharmacology" , why not "pharmacoimmunology"? Professor H. O. Schild University College London, 1962 An intact immune response is essential for survival, as is evidenced by the various innate immune deficiency syndromes and by the emergence of the acquired immune deficiency syndrome (AIDS) as a pandemic during the last decade. Substances which stimulate the immune response might contribute to the therapy of AIDS and its precursor, AIDS-related syndrome, as well as of other clinical conditions in which immune responses can be diminished, such as carcinoma and infections. In other circumstances, an intact or heightened immune response may pose clinical problems; hence there is need to suppress, or diminish, components of the immune response. For instance, it is necessary to impair cellular immunity in order to ensure lasting acceptance of heterografts and it is already established that agents effective in transplantation are therapeutically effective in an range of autoimmune diseases. More recently, experimental studies have indicated that aberrant manifestations of humoral immunity, as in allergies, may also be amenable to pharmacological intervention.

Several methods have been used to demonstrate the vasculature of different organs in man and other species. Many attempts to evaluate the precise microangioarchitecture of organ systems remained unproductive, others were controversial. The development of electron microscope in thirties opend new perspectives in researching microvascular systems. Transmission electron microscopy provided a two-dimensional view on microcirculatory system at higher magnifications, however, its standardization was delayed unnecessarily. The use of methyl methacrylate and related compounds for obtaining replicas of vascular beds, and their study in scanning electron microscope opened a new window in micromorphological research. For the first time, a three-dimensional image analysis of the vascular system was possible. The microvascular corrosion casting method has meanwhile attracted the interest of many contemporary scientists. Its application to medical and biological problems justify it to be used as a routine method for microvascular investigations. The first investigators who used this method, focused either on methodological details or they dealt with the normal microanatomy of organs. The advantages of this method in demonstrating pathological microvascular patterns are also evident.

Pressure-related chronic wounds are an important health concern that affects millions of patients and accumulates billions in annual costs. These wounds may occur when soft tissues are mechanically compressed between bony prominences and a supporting surface. This book gives a complete and quantitative explanation of the mechanobiology which causes chronic wounds. The reviews give an overall picture on all length scales of the phenomenon, starting from musculoskeletal biomechanics to the modeling of soft tissues and their interaction with bones. At the microscopic levels, it thoroughly reviews experiments and modeling of cellular forces and molecular processes that occur during injury and healing, including the integrity of living cells subjected to sustained mechanical forces and deformations. The results allow a complete picture of the tolerance of human tissues to sustained loads, and an understanding of the risk for onset of chronic wounds. Hence, this book is also valuable for all professionals involved in the prevention and treatment of chronic wounds.

The first edition of this book was well received by updated. The two of us have made further collab orative efforts to present a better understanding of medical students, graduate students, and clinicians interested in furthering their understanding of basic the function of the kidney in conjunction with the principles of renal physiology. Most of the reviews most recent anatomical findings. of the first edition and comments from the various The second edition consists of 13 Chapters and 3 instructors who used the book were very positive Appendices. As in the first edition, the anatomical and complimentary with regard to the presentation description of the kidney is incorporated into the of the physiological information and the use of the various chapters dealing with kidney functions. Most system analysis approach to describe renal function. of the anatomical information was written by Wil These positive and encouraging comments over the helm Kriz. The physiological information was writ past nine years, since the publication of the first ten by Esmail Koushanpour, except for Chapter 12 edition, gave us the impetus to consider the prepa which was jointly written. Chapters 1 through 3 were ration of a second edition."

We are pleased to present to our readers the Proceedings of the Second International Symposium "Proteases: Potential Role in Health and Disease" which was held in Rothenburg ob der Tauber (FRG) during May 17-20, 1987. The topics discussed included those dealing with the physiology and pathophysiology of proteases and their inhibitors, the inter- actions of proteases and hormones, the kallikrein-kinin, com- plement and coagulation system, the function of proteases in arthritis, malignoma, pancreatitis, intestinal tract, lung and kidney disease as well as in hypercatabolic states (acute renal failure, multiple trauma and septicemia). Furthermore some reports dealed with the role of proteases during extracorporeal circulation. The papers presented answered many questions, but raised many more concerning the significance of proteases and their in- hibitors in clinical medicine. It was unfortunately impossible in this volume, to include the extended, lively and stimulating discussions which were enjoyed by the participiants during the conference. The meeting has provided a unique framework for close inter- action between scientists from various disciplines, including molecular biology, biochemistry, physiology, surgery, anaesthe- siology, endocrinology, hematology, pneumatology and nephrology.

Having received the invitation from Springer-Verlag to produce a volume on drug-induced birth defects for the Handbook of Experimental Pharmacology, we asked ourselves what new approach could we offer that would capture the state of the science and bring a new synthesis of the information on this topic to the world's literature. We chose a three-pronged approach, centered around those particular drugs for which we have a relatively well established basis for understanding how they exert their unwanted effects on the human embryo. We then supplemented this information with a series of reviews of critical biological processes involved in the established normal developmental patterns, with emphasis on what happens to the embryo when the processes are perturbed by experimental means. Knowing that the search for mechanisms in teratology has often been inhibited by the lack of understanding of how normal development proceeds, we also included chapters describing the amazing new discoveries related to the molecular control of normal morphogenesis for several organ systems in the hope that the experimental toxicologists and molecular biologists will begin to better appreciate each others questions and progress. Several times during the last two years of developing outlines, issuing invitations, reviewing chapters, and cajoling belated contributors, we have wondered whether we made the correct decision to undertake this effort.

Apoptosis is a fascinating concept for the basic scientist. This is not only because of the multifaceted variety of proposed and discovered mechanisms, but because apoptosis represents a fundamental pathway for cell renewal. The study of apoptosis has resulted in an array of discoveries on signal transduc tion and downstream effects that have facilitated and advanced many fields in biology, including research on cancer and other diseases. Thus, the apoptotic process can be viewed as the largest effort of the scientific community to understand how cells work and tissues assemble or remodel. The most direct consequence of this accumulated knowledge is a greater understanding of disease and pathological mechanisms. The end result of these efforts will be significant contributions to health and the adoption of new, never anticipated, therapeutic approaches. This book represents the summation of considerable effort from a significant group of contributors from all over the world as well as from its editors. In this fashion, many viewpoints have been collected and SUbjected to thorough academic discussion. The concepts contained in this medically important volume will stimulate and renew the ideas of scientists and indeed, will generate additional work to advance biological knowledge even further. The emphasis of this volume cements what has been established, adds what has not been explored fully, and creates a fertile ground for further hypotheses that will lead to a more complete understanding of the apoptotic process."

JAMES L. MCGAUGH Understanding of the nature and functions of neurotransmitter systems in the brain has increased enormously in recent decades. Lack of knowledge required us, not too long ago, to use the adjective "putative" when discussing transmitters. Such caution is no longer essential (at least for a number of transmitters). Impressive progress has been achieved in understanding the pharmacology, biochemistry and anatomy of transmitter systems. There has, however, been relatively less progress in understanding the functioning of brain transmitters in regulating and mediating behavior. A simple and certainly correct explanation for this is, of course, that understanding of neurotransmitter functions requires prior detailed knowledge of basic pharmacology, biochemistry and anatomy. Beyond that, it now seems likely that progress in understanding the functions of brain neurotransmitters will proceed only as we examine the interactions of neurotransmitter systems in regulating behavioral functions. This premise is, of course, suggested by the findings of studies of the chemical neuroanatomy of the brain: Neurotransmitter systems are influenced by other neurotransmitter systems and, in tum, influence the same as well as other systems. No system works alone. The chapters in this book explicitly examine the interactions of neurotransmitter systems involved in the regulation of cognitive processes. The facts and interpretations offered provide compelling support for the premise that cognitive processes are orchestrated by interactions among neurotransmitter systems. And, they offer promise that understanding of such interactions will be of critical importance in the develop ment of treatments for brain diseases affecting cognitive functioning."

Dr. Elisabeth Bock (Photo Keenpress) This book contains review articles that produce a snapshot of recent developments in the field of the neural cell adhesion molecule NCAM. The chapters are grouped into sections reflecting various aspects of NCAM structure and function. The themes cover the structural basis of cell adhesion mediated by NCAM and NCAM interaction partners, NCAM-mediated signaling determinants of NCAM function under physiological conditions and in disease, and the therapeutic potential of NCAM mimetics. Section 1, "Structure and Ligands of NCAM," introduces the reader to the str- tural basis of NCAM-mediated cell adhesion, discussing the current knowledge of extracellular and intracellular NCAM ligands and the structural basis of NCAM int- actions with the fibroblast growth factor (FGF) receptor. Section 2, "NCAM and Polysialic Acid," focuses on NCAM polysialylation, discussing the structural and functional aspects of the most important posttranslational modifications of NCAM by the addition of a long linear homopolymer of sialic acid to the fifth Ig-like NCAM module. Section 3, "NCAM-mediated Signal Transduction," is devoted to signal v BookID 187530_ChapID FM1_Proof# 1 - 01/03/2011 BookID 187530_ChapID FM1_Proof# 1 - 01/03/2011 vi Preface transduction mechanisms associated with NCAM-mediated adhesion, with a focus on signaling pathways involved in NCAM-mediated neurite outgrowth, the role of growth-associated proteins, signaling through lipid microdomains, and signaling crosstalk with the epidermal growth factor (EGF) receptor. Section 4, "NCAM Metabolism," focuses on current knowledge about NCAM biosynthesis and the g- eration and role of soluble NCAM.

The International Society on Oxygen Transport to Tissue (ISOTT, www. isott. info) is an interdisciplinary society comprising about 250 members worldwide. Its purpose is to further the understanding of all aspects of the processes involved in the transport of oxygen from the air to its ultimate consumption in the cells of the various organs of the body. The annual meeting brings together scientists, engineers, clinicians and mathematicians in a unique int- national forum for the exchange of information and knowledge, the updating of participants on latest developments and techniques, and the discussion of controversial issues within the field of oxygen transport to tissue. Founded in 1973, the society has been the leading platform for the presentation of many of the technological and conceptual developments within the field both at the meetings themselves and in the proceedings of the society. These have been published first by Plenum Publishing (1973), then by Kluwer Academic/Plenum Publishers and presently by Springer Publishing, all in the Advances In Expe- mental Medicine and Biology Series. The 36th Annual ISOTT conference was held in Sapporo, Japan during August 3-7, 2008. It was the second occasion that the ISOTT meeting was held in Japan; the first one was held in the same place in 1987 organized by Professor Masaji Mochizuki.

Recent developments in recombinant DNA technology have led to the large-scale production of human erythropoietin and to the demonstration that it is effective in the treatment of renal and possibly some other anaemias. This has lent a new impetus to studies of the pathophysiology and pharmacology of the hormone which is reflected in this report of the proceedings of a meeting held in Liibeck in June 1988. In 15 papers, all from European centres, the broad topics covered are erythropoietin's physiology and chemistry, the patho- physiology of erythropoiesis and the use of erythropoietin in the treatment of anaemia. Several of the papers include up-to-date reviews of the literature. The field is now expanding rapidly, and this volume, though not comprehensive, usefully points up many areas of recent understanding as well as others of continuing un- certainty. Overall, it contains material likely to be of interest to biochemists and experimental haematologists as well as to phar- macologists, clinical haematologists and nephrologists.

"What we call the beginning is often the end, and to make an end is to make a beginning. The end is where we start from." T. S. ELIOT, "Geroniton" The discovery of endothelin-l was both an end and a beginning. It is an end because this discovery has started a plethora of investigations as to endothe1in's sites of production, mode of action, it's normal and abnormal physiological role and its involvement in a variety of pathological conditions ranging from renal failure to myocardial infarction, cardiac hypertrophy, hyperten sion, cyclosporine induced toxicity, mental depression, renal failure, stress related illness, and even stroke and sudden death. It is a beginning because no one can foresee where the investigations will ultimately lead, or how they will end. The discovery of the endothelins was a very recent event and soon specialist books will start to appear dealing in detail with different aspects of their chemistry, physiological role and pathological importance. The present book is intended to act as a guide and primer for those who are becoming intrigued by the many endothelin related articles which are now appearing in the journals but who as yet have not had the time or opportunity to be caught up in the web of enthusiasm and excitement which is motivating those more directly involved in the field of research.

The scientific literature has expanded dramatically in recent years, making entry into the structure of any given area extremely difficult; concurrent with this explosion more people are required to become acquainted with information outside their main line of expertise. For this reason there is a need for review articles which give an overall review of circumscribed areas. This volume reviews the subject of respiratory control mechanisms; the authors of each chapter are active research workers engaged in the area covered by their chapter. The first four chapters are concerned with the basic physiological mechanisms which sense changes in the respiratory system, in the standard physiology textbook parlance chemical and neural sensory receptors. The peripheral arterial chemoreceptors sense changes in arterial oxygen tension, carbon dioxide and pH. The first chapter describes the basic responses in the organ produced by changes in blood chemistry. Later chapters discuss changes in activity produced by exercise, chronic hypoxia and the possible role of the chemoreceptors in initiation of respiration in the new-born. In Chapter 1, a section considers the action of drugs on the peripheral chemoreceptors, and finally there is a discussion of the possible mechanisms whereby the organs sense changes in blood chemistry. This pattern is followed in subsequent chapters wherever possible; first a discussion of the basic physiological properties, followed by any clinical application and dis cussion of the mechanism whereby the receptor might operate. The remaining chapters are of a more applied nature.

This volume explores all aspects of vascular biochemistry and includes chapters that provide an understanding of vascular function with descriptions of tissue components present in the vascular wall as well as an exploration of the hemodynamic and metabolic activities associated with this function. In addition, some chapters explore the vasculature under conditions which mimic various disease states. The information provided in this volume will provide new insights into the mechanisms that control vascular function as well as therapies designed to treat vascular disease.

The duplicity theory of vision concerns the comparisons (both differences and similarities) and interaction between the cone and rod systems in the visual pathways, with the assumption that the cone system is active during daylight vision and the rod system functions in low light (night time). Research on this aspect of vision dates back to the 17th century and the work of Newton, and is still ongoing today. This book describes the origin and development of this fundamental theory within vision research - whilst also examining the Young-Helmholtz trichromatic colour theory, and the opponent colour theory of Hering - and presents evidence and ideas in light of modern conceptions of the theory. Written for academic researchers and graduate students, the book brings back knowledge of the tradition of duplicity theory, inspiring questions related to anatomy, comparative biology, molecular biology, photochemistry, physiology, genetics, phylogenetics and psychophysics.