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Books > Professional & Technical > Veterinary science > General
The Fifth Chinese Peptide Symposium, hosted by Lanzhou University, was held at Lanzhou, China July 14-17, 1998, with 156 participants, including 30 scientists from abroad, representing nine countries. The four-day conference was both intense and spiritually rewarding. Our goal for CPS-98 was to provide a forum for the exchange of knowledge, cooperation and friendship between the international and Chinese scientific communities, and we believe this goal was met. The symposium consisted of 8 sessions with 42 oral and 90 poster presentations, including synthetic methods, molecular diversity and peptide libraries, structure and conformation of peptides and proteins, bioactive peptides, peptide immunology, De Novo design and synthesis of proteins and peptides, ligand-receptor interactions, the chemistry-biology-interface and challenging problems in peptides. The enthusiastic cooperation and excellent contributions were gratifying and the active response of the invited speakers contributed to the success of the symposium. The presentations were of excellent caliber and represented the most current and significant aspects of peptide science. Dr. Kit Lam of the University of Arizona and Dr. Yun-Hua Ye of Peking University were the recipients of "The Cathay Award" sponsored by the H. H. Liu Education Foundation, offered for their seminal contribution in peptide science and the Chinese Peptide Symposium. Four outstanding young scientists were selected by the organizing committee to receive awards sponsored by Haikou Nanhai Pharmaceutical Industry Co. Ltd. (Zhong He Group).
Autoimmunity is the most common cause of endocrine disorders. This volume provides an up-to-date summary of recent advances in this important field. In addition, it describes developments in our understanding of conditions such as vitiligo and pernicious anaemia which are frequently associated with autoimmune endocrinopathies. There is a detailed review of animal models of endocrine disease which have contributed greatly to current knowledge. Furthermore, the aetiology, pathogenesis and treatment of the clinical disorders are discussed in depth. The book will be of interest to anyone working in the areas of endocrinology and immunology.
The field of genito-urinary oncology is rapidly evolving at virtually every level. Significant advances have been made in our understanding of the molecular and cellular events which contribute to the generation of GU malignancies. At the same time, similar advances have been made in the clinical arena which have improved the diagnosis and treatment of urologic cancers. This volume attempts to summarize those advances which most impact us as clinicians, and has been divided into three sections. Section One, 'Diagnostic advances: the use of molecular medicine in the diagnosis and prognosis of GU malignancies', details how epidemiologic studies and new molecular techniques are impacting our ability to diagnose and treat GU tumors. Section Two, 'Surgical and radiation advances', details the recent major advances in the treatment of organ-confined cancers. Section Three, 'Medical advances', addresses major issues in the treatment of metastatic disease. This volume will serve as a compendium of the advances, both at the basic science and clinical levels, which are currently impacting practicing oncologists and urologists.
Proceedings of the European Cooperation in the Field of Scientific and Technical Research (COST 825) Symposium on Mammary Gland Biology, held September 16-18, 1999, in Tours, France. It is difficult to overstate the evolutionary and functional significance of mammary tissue in biology. Substantial progress has been made by researchers in various disciplines, particularly over the last fifteen years, towards realizing the potential of this tissue to yield powerful experimental models for morphogenesis and tissue development; for cellular differentiation; for the biosynthesis and secretion of proteins, lipids, small molecules and inorganic salts; and for the coordination and regulation of these processes. More recently, the possibility of exploiting the secretory epithelial cells of mammary tissue as `cell factories' has become a reality and the recombinant production by lactating animals of an increasing number of proteins, valuable both in the pharmaceutical and `nutraceutical' fields, is in progress or under development. Also in this sphere of agricultural production, genetic as well as nutritional technologies are under investigation and exploitation to optimize milk composition for various end-uses - for instance in food process and manufacture. The possibilities of deriving health benefit from the bioactive properties of some of the minor constituents of milk are emerging to counter the highly-publicized negative health impact of excessive consumption of saturated animal fats. In human nutrition and medicine, the mammary gland is both a source of nutrition to the neonate and a potential health threat to the adult female - breast cancer remains the major single cause of female mortality in most developed countries. This volume provides a unique glimpse into our understanding, at the cutting edge of a variety of disciplines, of this versatile and extraordinary tissue, at the birth of the twenty-first century.
During the past several decades, a significant international research effort has been directed towards understanding the composition and regulation of the preocular tear film. This effort has been motivated by the recognition that the tear film plays a critical role in maintaining corneal and conjunctival integrity, protecting against microbial challenge and preserving visual acuity. In addition, research has been stimulated by the knowledge that alteration or deficiency of the tear film, which occurs in numerous individuals throughout the world, may lead to desiccation of the ocular surface, ulceration and perforation of the cornea, an increased incidence of infectious disease, and potentionally pronounced visual disability and blindness.
Interest in the coronaviruses has never been greater. Their economic impact is considerable as they infect humans, livestock, poultry and companion animals. Murine hepatitis virus (MHV) infection of the mouse and rat central nervous systems are the subject of intense study; these investigations are providing insights into the potential role of viruses in human neurological diseases and, more generally, into mechanisms causing neurological damage. The single-stranded, positive-sense RNA genomes of two species of these enveloped viruses (IBV and MHV) have been cloned completely and one of them (lBV) sequenced in its entirety, revealing a genome size of some 27000 nucleotides. This has made possible more incisive investigations into the nature of those polypeptides, encoded by more than half of the genome, which are likely to contribute, in the main, to RNA polymerase/replicase activity. Intriguingly, ribosomal frameshifting is exhibited within the mRNA coding for these polypeptides. The cloning/sequencing phase of coronavirology for which the 1980's will be partly remembered, has provided a sound framework for furthex: studies of the virus structural proteins and also some provocative insights relevant to these studies. The large spike glycoprotein(s), responsible for membrane fusion and bearing important antigenic sites, varies amazingly in length and composition both within as well as between coronavirus species. Receptors on host cells have been identified. The integral membrane glycoprotein (M) has been shown to use internal hydrophobic sequences to direct translocation within membranes.
The vasculature of the central nervous system (eNS) is characterized by the existence of the blood-brain barrier (BBB), which can be regarded as both an anatomical and physiological phenomenon. The BBB is formed by a complex cellular system of endothelial cells, astroglia, pericytes, perivascular macrophages and a basal membrane, although the anatomic substrate of the BBB is the interendothelial tight junctions that form a continuous sealing. The BBB serves as an exquisitely controlled, functional gate to the eNS. It not only protects the brain from agents in the blood that could impair neurological function, but also controls the influx and efflux of numerous substances to maintain proper homeostasis and provide the brain with necessary nutrients. The structural and functional integrity of the BBB was shown to be dramatically altered during various diseases of the eNS, including neoplasia, ischemia, trauma, hypertension, inflammation and epilepsy. Recent years research has partially elucidated the mechanisms underlying the development of some of these brain disorders as well as the pathways used by different pathogens, like bacteria and viruses, to initiate eNS infections. The development of in vitro models of the BBB had instrumental role in the understanding of the involvement of the BBB in the pathogenesis of several eNS diseases. The intimate, functional association between the function of the brain and the activity of the BBB makes the later a target for pharmacological modulation that will expand the therapeutic possibilities for a range of neurological diseases.
Elastic filaments refer mainly to titin, the largest of all known proteins. Titin was discovered initially in muscle cells, where it interconnects the thick filament with the Z-line. Titin forms a molecular spring that is responsible for maintaining the structural integrity of contracting muscle, ensuring efficient muscle contraction. More recently, it has become clear that titin is not restricted to muscle cells alone. For example, titin is found in chromosomes of neurons and also in blood platelets. This topic is fast becoming a focal point for research in understanding viscoelastic properties at the molecular, cellular, and tissue levels. In titin may lie a generic basis for biological viscoelasticity. It has become clear that titin may hold the key to certain clinical anomalies. For example, it is clear that titin-based ventricular stiffness is modulated by calcium and that titin is responsible for the altered stiffness in cardiomyopathies. It is also clear from evidence from a group of Finnish families that titin mutations may underlie some muscular dystrophies and that with other mutations chromatids fail to separate during mitosis. Thus, it is clear that this protein will have important clinical implications stemming from its biomechanical role. One aspect of this field is the bringing together of bioengineers with clinical researchers and biologists. Genetic and biochemical aspects of titin-related proteins are being studied together with front-line engineering approaches designed to measure the mechanics of titin either in small aggregates or in single molecules.
The objective of this book is to provide recent information on neural regulation in the endocrine system in vertebrates. Classical studies have revealed that certain neurons synthesize and release chemical messengers into the vascular system. These neurons are endocrine devices that link the brain with the endocrine glands and other target organs. In vertebrates, the hypothalamus is the seat for chemical coordination and integration of en- vironmental and hormonal cues to modulate function of the pituitary gland, and conse- quently, the functions of other endocrine glands. Exciting information generated during the past few decades has resulted in profound alterations in the conceptual fabric of endo- crinology. From the wealth of information that emerged on neuropeptides of the central nervous system, and on the other connectivities of various brain centers, its has become clear that several extra-hypothalamic sites are also involved in regulation of hypophysial hormones. The brain has assumed a greater importance in the regulation of the endocrine sys- tem. However, recent studies have revealed varying degrees of functional autonomy in hy- pophysial hormone secretion, which may be due to intrapituitary cytokines. Although gonadotropin-releasing hormone (GnRH) is a key regulator of gonadotropin secretion, there exists a GnRH receptor diversity in vertebrates such as the receptor presence in can- cer cells. Recent studies have demonstrated the multifactorial nature of the neuroendo- crine factors involved in growth hormone regulation in fish. On the other hand, in birds, thyrotropin-releasing hormone plays a major role in growth hormone release.
Cell adhesion is one of the most important properties controlling embryonic development. Extremely precise cell-cell contacts are established according to the nature of adhesion molecules that are expressed on the cell surface. The identifica tion of several families of adhesion molecules, well conserved throughout evolu tion, has been the basis of a considerable amount of work over the past 20 years that contributed to establish functions of cell adhesion in almost all organs. Nowadays, cell adhesion molecules are not just considered as cellular glue but are thought to play critical roles in cell signaling. Their ability to influence cell proliferation, mi gration, or differentiation depends on both cell surface adhesion properties and acti vation of intracellular pathways. The next challenge will be to understand how these molecules interact with each other to ensure specific functions in the morphogen esis of very sophisticated systems. Indeed, by exploring the cellular and molecular mechanisms of nervous system development, the group of H. Fujisawa in Japan identified in 1987 an adhesion molecule, neuropilin, highly expressed in the neuro pile of amphibian optic tectum. Ten years later, two groups discovered that neuropilin is a receptor for guidance signals of the semaphorin family. Axon guidance is a critical step during brain development and the mechanisms ensuring growth cone navigation are beginning to be well understood. The semaphorins are bifunctional signals defining permissive or inhibitory pathways sensed by the growth cone.
During October 18-30, 1981, the second course of the International School of Pure and Applied Biostructure, a NATO Advanced Study Institute, was held at the Ettore Majorana Center for Scientific Culture in Erice, Italy, co-sponsored by the International Union Against Cancer, the Italian League Against Cancer, the Italian Ministry of Public Education, the Italian Ministry of Scientific and Technological Research, the North Atlantic Treaty Organization, the Italian National Research Council, the Sicilian Regional Government and two pharmaceutical Companies (Zambeletti and Farmitalia). The subject of the course was "Chemical Carcino genesis" with participants selected world-wide from 18 different countries. It is now eminently clear that.the bulk of human cancers are related to one of several types of environmental exposure. Of the environmental hazards, chemicals are among the best characterized carcinogens. However, how chemicals induce cancer is still poorly understood. Because of the magnitude of the problem and the ob vious need for a much more critical scientific analysis of the process by which cancer is induced (carcinogenesis), it was highly desirable to expose a greater number of scientists with varying background to some of the latest thinking in chemical carcino genesis. The course had this as its major objective and the re sulting book does reflect it."
This volume, Biological and Hormonal Therapies of Cancer, which is part of the series Cancer Treatment and Research, presents selected new information concerning biologic and hormonal therapy of cancer. We have attempted to provide the reader with topics of major interest in a timely fashion. There is renewed interest in biologic therapy of cancer. Two chapters review the role of interferon in the hematologic malignancies and in solid tumors. Vaccine therapies have come to the forefront of cancer therapy re cently, and two chapters approach different strategies of vaccine therapies; one reviews the cellular vaccine therapies and another the anti-idiotype ap proach. The hormonal therapy chapters focus on current uses of endocrine therapy in endometrial, breast, and prostate cancer. In addition, hormonal strategies for the prevention of breast cancer and endometrial cancer, including excit ing information relating to phytochemicals, are presented. The effects of tamoxifen on endometrium is a topic of major interest and is discussed in detail. Finally, there is a chapter on estrogen receptor expression and regula tion in human breast cancer. These chapters are all written by experts in the field and contain timely and relevant information of interest to laboratory and clinical scientists and practitioners alike. Biologic and endocrine therapies represent major areas of cancer research interest. The advent of newer biologic therapies, including new antibody targeted treatments, and the use of biologics as tumor modulators to enhance the effects of other treatment regimens is an exploding avenue of research.
Aquaculture is rapidly becoming a major source of fish protein used to meet the nutritional needs of humans. As the aquaculture industry grows, exposure of farmed fish to environmental contaminants, and the need for chemical therapeutic agents for fish, will increase. This book is designed to bring together authorities worldwide on the regulation of environmental contaminants and food chemicals and researchers investigating the metabolism and disposition of foreign chemicals (xenobiotics) in fish species.
Andrew Arnold The past several years have been a time of intense excitement and have brought major advances in the understanding and treatment of endocrine neoplasms. This is therefore an excellent point at which to undertake a broad based overview of the state of the art in endocrine neoplasia for the Cancer Treatment and Research series. Because of the wide and interdisciplinary readership of this series, our aim for each chapter has been to provide ample background for those not highly familiar with the topic, while emphasizing the most recent advances. Furthermore, the chapters have been written with the clinician in mind, whether she or he is an oncologist, endocrinologist, surgeon, generalist, pathologist, or radiologist. As such, the authors' mission has been to focus on clinically relevant issues and to present the scientific basis of current or potential future advances in a manner easily digestible to the nonexpert. Endocrine tumors often cause problems for the patient by virtue of their hormonal activity, which may frequently (but certainly not always) over shadow the adverse consequences related to their mass per se. In fact, it is important to keep in mind that endocrine tumors can manifest two biologically separable but often intertwined properties, namely, increased cell mass and abnormal hormonal function. These need not go hand in hand, and their distinction has definite clinical relevance in, for example, the increasingly recognized problem of incidentally discovered adrenal or pituitary masses.
Glycotechnology brings together in one place important contributions and up-to-date research results in this fast moving area. Glycotechnology serves as an excellent reference, providing insight into some of the most challenging research issues in the field.
With the rapid spread of drug use and abuse in this country over the last decade, events relating to drugs have become increasingly prominent in the court of law as well as in society in general. It is anticipated that throughout the 1980s this problem will continue to be one of the major social problems in the United States. With the complexity of the Federal and state laws and their interrelationships, and with the increasing demand for the expert chemist or toxicologist, or both, in the courtroom, more education for these people relating to drugs must be implemented. The prosecuting and defense attorneys are also in need of accurate toxicological information to adequately handle cases in which drugs playa role. This book is intended to be a practical as well as an educational book-a resource tool for the active forensic chemist, as well as for the student. It is with the forensic chemist in mind that the material on controlled substances and substances found in cases of drug abuse has been arranged in a systematic order for quick and easy reference. This section includes synonyms, pharma ceutical preparations, biochemistry and/or pharmacognosy, toxicology and/or pharmacology, and how the substance is controlled under Federal law. Under the concept of scientific consideration as compared with the Federal law, this book enables one to deal with some of the major conflicts in the American legal system concerning scientific evidence and how it is presented in a court of law."
Electron microscopy is frequently portrayed as a discipline that stands alone, separated from molecular biology, light microscopy, physiology, and biochemistry, among other disciplines. It is also presented as a technically demanding discipline operating largely in the sphere of "black boxes" and governed by many absolute laws of procedure. At the introductory level, this portrayal does the discipline and the student a disservice. The instrumentation we use is complex, but ultimately understandable and, more importantly, repairable. The procedures we employ for preparing tissues and cells are not totally understood, but enough information is available to allow investigators to make reasonable choices concerning the best techniques to apply to their parti cular problems. There are countless specialized techniques in the field of electron and light microscopy that require the acquisition of specialized knowledge, particularly for interpretation of results (electron tomography and energy dispersive spectroscopy immediately come to mind), but most laboratories possessing the equipment to effect these approaches have specialists to help the casual user. The advent of computer operated electron microscopes has also broadened access to these instruments, allowing users with little technical knowledge about electron microscope design to quickly become operators. This has been a welcome advance, because earlier instru ments required a level of knowledge about electron optics and vacuum systems to produce optimal photographs and to avoid "crashing" the instruments that typically made it difficult for beginners.
Since its launch in 1998 the European Society for Intravenous Anaesthesia (EuroSIVA) has come a long way in providing educational material and supporting the research and clinical application of intravenous anaesthesia. After the first two annual meetings held in Barcelona and Amsterdam in 1998 and 1999, three other successful meetings took place in Vienna, Gothenburg and Nice in 2000, 2001 and 2002. Next to these main meetings, starting in the year 2000, a smaller winter meeting has been organised every last week of January in Crans Montana, Switzerland. Both the main summer and the winter meetings breathe the same atmosphere of sharing the latest on intravenous anaesthesia research in the presence of a friendly environment and good company. Since the first meetings the educational tools of EuroSIVA have increased in quantity and technical quality allowing digital slide and video presentation along with the use of the computer simulation program TIVAtrainer during the speaker sessions and the workshops. Furthermore, EuroSIVA now exploits a website www. eurosiva. org that allows for continuous exchange of information on intravenous anaesthesia, the TIVAtrainer, the EuroSIVA meetings and online registration for these meetings. The EuroSIVA is currently engaged in friendly contacts with the Asian Oceanic Society for Intravenous Anaesthesia (AOSIVA), the United Kingdom Society for Intravenous Anaesthesia (UKSIVA), the Korean Society for Intravenous Anaesthesia (KSIVA), the European Society of Anaesthesiology (ESA) and the International Society for Applied Pharmacology (ISAP).
The last half-century has shown a dramatic increase in the standard of living of millions of people in Europe, North America and many parts of the Third World. This has, in many ways been brought about by scientific and technical developments which were initiated in the 1940s and 1950s. Promises were then made that nuclear energy would provide electricity so cheap that it would not need metering, pesticides would end malnutrition throughout the world and plastics and other synthetic chemicals would revolutionise our manufacturing industry and our way of life. Whilst some of these promises have been fulfilled, the problems of long-term health risks to humans and wildlife arising from the use, production and disposal of these products were either unknown or deliberately understated. Nuclear power is rendered economically unviable when the real cost of decommissioning and storage of waste for several millenia is included, and the effects on health of both humans and wildlife of early pest eradication programmes with organochlorine pesticides were well documented in Rachel Carson's "Silent Spring." Evidence of the effects of aerosols and refrigerants on depletion of the ozone layer has led to restriction on the use of CFCs, and there is now increasing evidence of climate change resulting from our profligate use of fossil fuels.
Within the last few years, iron research has yielded exciting new insights into the under standing of normal iron homeostasis. However, normal iron physiology offers little protec tion from the toxic effects of pathological iron accumulation, because nature did not equip us with effective mechanisms of iron excretion. Excess iron may be effectively removed by phlebotomy in hereditary hemochromatosis, but this method cannot be applied to chronic anemias associated with iron overload. In these diseases, iron chelating therapy is the only method available for preventing early death caused mainly by myocardial and hepatic iron toxicity. Iron chelating therapy has changed the quality of life and life expectancy of thalassemic patients. However, the high cost and rigorous requirements of deferoxamine therapy, and the significant toxicity of deferiprone underline the need for the continued development of new and improved orally effective iron chelators. Such development, and the evolution of improved strategies of iron chelating therapy require better understanding of the pathophysiology of iron toxicity and the mechanism of action of iron chelating drugs. The timeliness of the present volume is underlined by several significant develop ments in recent years. New insights have been gained into the molecular basis of aberrant iron handling in hereditary disorders and the pathophysiology of iron overload (Chapters 1-5)."
This book contains the proceedings of the first meeting on invertebrate immunity ever sponsored as a summer research conference by the Federation of American Societies for Experimental Biology (FASEB). The conference was held in Copper Mountain, CO from July 11-16, 1999. It was a an extension of a New York Academy of Sciences meeting entitled "Primordial Immunity: Foundations for the Vertebrate Immune System" held on May 2-5,1993 at the Marine Biological Laboratories in Woods Hole, MA. The proceedings of that meeting were published in The Annals of the New York Academy of Sciences (volume 712). At that meeting all the attendes agreed that this type of conference (a relatively small focused gathering) allowed for participation by investigators at all levels of their careers. We further agreed that we should search for a forum that would allow this meeting to continue. The FASEB Summer Research Conference was an excellent vehicle for this type of meeting. Furthermore, this year's participants decided to continue this meeting as a regularly scheduled FASEB sponsored event. This was a unique conference in the sense that it focused upon mechanisms of development and defense in protostome and deuterostome invertebrates and lower vertebrates. There was a strong emphasis on evolutionary cell biology, phylogenetic inferences and the evolution of recognition and regulatory systems.
The localized attachment of circulating leukocytes to endothelium has been recognized as the cellular hallmark of the inflammatory response. This adhesive interaction, a necessary antecedent to the emigration of leukocytes from the blood into the tissues, is mediated by vascular adhesion molecules. Leukocyte Recruitment, Endothelial Cell Adhesion Molecules and Transcriptional Control: Insights for Drug Discovery outlines some of the cellular and molecular mechanisms of inflammation with contributions from top researchers. This volume provides an overview of three of these endothelial adhesion molecules, as examples of key mediators of leukocyte recruitment. It reviews the structure and regulation of these cell surface proteins and focus on the rapidly expanding field of transcriptional regulation of these inducible proteins, and closes with a discussion of drug discovery possibilities that target the regulation of leukocyte recruitment. This book will be of interest for any researchers, in academia or industry, looking for an overview of leukocyte recruitment or novel approaches to drug discovery.
A variety of metabolic processes are known to be intimately involved in the maintenance of cellular structure and function. It has also become clear that metabolic events involved in the synthesis and hydrolysis of ATP as well as for the synthesis of proteins and phospholipids are essential for cellular health. The regulation of cell function is generally achieved through participation of a wide variety of hormones and different signal transduction mechanisms for the activation/deactivation of some specific metabolic processes. In this regard cyclic AMP and calcium seem to play a crucial role. Various hormones are also known to affect the genetic machinery of all the cell; however, the exact signals for genetic control of cellular function are not well defined. In particular, the sequence of events concerned with remodelling of different types of cells under various pathological situations is poorly understood. In this book we have therefore dealt with some of these issues from biochemical, molecular biological, physiological, and pharmacological viewpoints. Special emphasis has been laid on understanding heart function and metabolism in health and disease in general, and cardiac hypertrophy, heart failure, and ischemic heart disease in particular. It is hoped that this multidisciplinary information will be of value to basic scientists and clinical investigators.
The 23rd annual meeting of the International Society on Oxygen Transport to Tissue took place from August 23-27, 1995, at the Station Square Sheraton along the shores of the Monongahela River where it meets with the Allegheny and Ohio Rivers to form the "Point" of the city of Pittsburgh. Pittsburgh was a convenient location for the meeting be ing between both the East and West coasts of the United States and between the Asian and European continents. It is easily accessible by air via its large international airport. In ad dition, Pittsburgh has just recently undergone a transition from the steel mills and indus tries of old to an age of computers and biotechnology as evidenced by the new Biotechnology Center of the University of Pittsburgh where a lunch and tour were pro vided for interested participants. On the tour, the participants got to see the mix of projects ranging from molecular biology to clinical projects studying membrane oxygenators, ven tricular assist devices, oxygen carriers, and more, representing the forefront of research on oxygen delivery systems to tissue. |
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