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Books > Medicine > General issues > Medical equipment & techniques
The idea that the microbial communities within the GI tract have a profound influence on general human health actually originated with Russian scientist Elie Metchnikov at the turn of the last century. Also known as the "father of immunology," Metchnikov believed that putrefactive bacteria in the gut were responsible for enhancing the aging process. He theorized that ingestion of healthy bacteria found in fermented foods could counteract toxic bacteria and was the key to good health. His theories concerning good bacteria and health can be found in his treatise "The Prolongation of Life: Optimistic Studies." These writings prompted Japanese scientist Minoru Shirota to begin investigation of how fermentative bacteria improve health. He succeeded in isolating a strain of Lactobacillus that could survive passage through the intestine, while promoting a healthy balance of microbes. The "Shirota strain" is still used today in the fermented beverage Yakult. It is clear from a commercial standpoint that these ideas have inspired the development of a probiotic industry, which has expanded greatly in the U.S. over the past 5-10 years. Likewise, scientific studies investigating the microbiota and the immune system have increased significantly in recent years. This increase in research is also due to advances in technologies that enable the investigation of large microbial communities, a resurgence in gnotobiotic animal research, and improved methods for molecular analysis of probiotic bacterial species. Our interest in this area stems from our laboratory observations indicating that antibiotics and fungi can skew microbiota composition and systemic immune responses. Our initial base of references upon which to develop further hypotheses concerning the mechanisms involved in microbiota regulation of immune responses was limited. However, in presenting the research at national scientific meetings and at universities across the country, the feedb
This book contains twelve chapters contributed by prestigious international experts who are at the forefront of B cell research, and aims to provide a cutting-edge and comprehensive overview of all aspects of B cells, including B cell development, maturation and activation, germinal center reaction, memory and plasma cell differentiation, and antibody-mediated positive and negative regulation of humoral immune responses. There are also three chapters describing human diseases caused by B cell abnormalities, including primary antibody deficiencies, autoimmune diseases, and B cell malignancies. We hope that this book will become a standard and routine reference for both basic researchers and clinicians.
This is the first book entirely dedicated to Intravital Microscopy. It provides the reader with a broad overview of the main applications of Intravital Microscopy in various areas of the biomedical field. The book contains accurate descriptions of the state of the art methodologies used to image various organs at different level of resolution, ranging from whole tissue down to sub-cellular structures. Moreover, it is an extremely valuable guide to scientists that want to adopt this powerful technique and do not have experience with animal models and microscopy.
Amyloid-forming proteins are implicated in over 30 human diseases. The proteins involved in each disease have unrelated sequences and dissimilar native structures, but they all undergo conformational alterations to form fibrillar polymers. The fibrillar assemblies accumulate progressively into disease-specific lesions in vivo. Substantial evidence suggests these lesions are the end state of aberrant protein folding whereas the actual disease-causing culprits likely are soluble, non-fibrillar assemblies preceding the aggregates. The non-fibrillar protein assemblies range from small, low-order oligomers to spherical, annular, and protofibrillar species. Oligomeric species are believed to mediate various pathogenic mechanisms that lead to cellular dysfunction, cytotoxicity, and cell loss, eventuating in disease-specific degeneration and systemic morbidity. The particular pathologies thus are determined by the afflicted cell types, organs, systems, and the proteins involved. Evidence suggests that the oligomeric species may share structural features and possibly common mechanisms of action. In many cases, the structure function interrelationships amongst the various protein assemblies described in vitro are still elusive. Deciphering these intricate structure function correlations will help understanding a complex array of pathogenic mechanisms, some of which may be common across different diseases albeit affecting different cell types and systems."
High-fidelity chromosomal DNA replication underpins all life on the planet. In humans, there are clear links between chromosome replication defects and genome instability, genetic disease and cancer, making a detailed understanding of the molecular mechanisms of genome duplication vital for future advances in diagnosis and treatment. Building on recent exciting advances in protein structure determination, the book will take the reader on a guided journey through the intricate molecular machinery of eukaryotic chromosome replication and provide an invaluable source of information, ideas and inspiration for all those with an interest in chromosome replication, whether from a basic science, translational biology and medical research perspective.
This book is a collection of articles presented by researchers and practitioners, including engineers, biologists, health professionals and informatics/computer scientists, interested in both theoretical advances and applications of information systems, artificial intelligence, signal processing, electronics and other engineering tools in areas related to biology and medicine in the All India Seminar on Biomedical Engineering 2012 (AISOBE 2012), organized by The Institution of Engineers (India), Jabalpur Local Centre, Jabalpur, India during November 3-4, 2012. The content of the book is useful to doctors, engineers, researchers and academicians as well as industry professionals.
Reviews in Plasmonics is a comprehensive collection of current trends and emerging hot topics in the field of Plasmonics and closely related disciplines. It summarizes the years progress in Plasmonics and its applications, with authoritative analytical reviews specialized enough to be attractive to professional researchers, yet also appealing to the wider audience of scientists in related disciplines of Plasmonics.
This volume looks at the state-of-the-science in stem cells, discusses the current challenges, and examines the new directions the field is taking. Dr. Turksen, editor-in-chief of the journal "Stem Cell Reviews and Reports," has assembled a volume of internationally-known scientists who cover topics that are both clinically and research-oriented. The contents range from sources of stem cells through their physiological role in health and disease, therapeutic applications in regenerative medicine, and ethics and society. An initial overview and a final summary bookend the contents into a cohesive and invaluable volume.
A panel of leading investigators summarizes and synthesizes the new discoveries in the rapidly evolving field of histone acetylation as a key regulatory mechanism for gene expression. The authors describe what has been learned about these proteins, including the identification of the enzymes, the elucidation of the enzymatic mechanisms of action, and the identification of their substrates and their partners. They also review the structures that have been solved for a number of enzymes-both alone and in complex with small molecule inhibitors-and the biological roles of the several histone deacetylases (HDAC) genes that have been knocked out in mice.
This book addresses current topics on pathogenic Vibrio spp. from a comprehensive and holistic perspective. Here, experts in the field provide timely chapters, ranging from genomics, pathogen emergence, and epidemiology to pathogenesis, virulence regulation and host colonization. Questions addressed include: How does climate change affect the spread of these bacteria? What is the status of current vaccines? Are there novel therapeutic options to treat Vibrio infections? Is there likelihood of emergence of new pathogenic strains or species? Can insights from mathematical models and epidemiology lead to prediction of pathogen outbreaks? Recent decades have seen a steady increase in Vibrio spp. infections originating in aquatic and marine habitats, driven by higher human population densities, warming of polluted oceans, natural and human-made disasters, and mass seafood production. These conditions increase the likelihood of pathogenic Vibrio spp. coming into contact with humans, making their study even more timely and relevant as these problems escalate over time. This book is a valuable resource for health management professionals, experienced microbiologists/ microbial ecologists, and early career scientists alike who want to learn more about these important environmental human pathogens. The ideas and technologies presented in this book for preventing, controlling, and monitoring Vibrio spp. infections contribute to the UN Sustainable Development Goal 3: Good Health and Well-Being.
This book is a major update of novel targets in angiogenesis modulation, including pro- and anti-angiogenesis. There is in-depth coverage of preclinical and clinical methods and models, investigational status, and clinical applications. The impact of nanotechnology in advancing the applications of pro-and anti-angiogenesis strategies is also highlighted, along with stem cell and biotechnologies in research and development of angiogenesis modulating targets.
The atlas of the Light and Specular Microscopy of the Cornea, particularly of the corneal endothelium presents photographs of healthy and pathological corneas, as well as corneas prepared for grafting. Photographs are taken from donor or patient's corneas. The first part section of the atlas shows healthy corneas and its particular layers: the epithelium (superficial and basal cells, subepithelial nerve plexus), stroma and keratocytes, and the endothelium. Blood vessels or palisades of Vogt in limbus are shown as well. The second part section that shows corneas processed for grafting is focused focuses on the endothelial layer. Main causes of exclusion of corneas from grafting, such as the presence of dead cells, polymeghatism, pleomorphism, cornea guttata or stromal scars have been shown. The third part section of the atlas shows corneas before and after storage in tissue cultures or hypothermic conditions with the aim to assess its suitability of for tissue for grafting. The last final section contains photographs of pathological corneal explants
Psychoneuroimmunology (PNI) has developed rapidly in the last four decades. As a multidisciplinary area, PNI may provide a scientific basis for mind-body relationships toward the development of personalized and systems medicine. In Psychoneuroimmunology:Methods and Protocols, expert researchers in the field detail methods and protocols geared toward the development of integrative and individualized therapeutics in multiple dimensions from drugs to behaviors. Written in the highly successful Methods in Molecular Biology (TM) series format, the chapters include the kind of detailed description and implementation advice that is crucial for getting optimal results in the laboratory. Thorough and intuitive, Psychoneuroimmunology:Methods and Protocols aids scientists in continuing to study holistic views for the translation of psychoneuroimmunology into better preventive and personalized medical practice.
Over the past decade, major advancements in the understanding of the molecular mechanisms and pathophysiology of pulmonary hypertension occurred in parallel with the discovery and development of new therapies. Pharmacological agents that modulate the main pathophysiological pathways of pulmonary arterial hypertension have changed the course of this devastating disease by relieving symptoms and improving and prolonging patients lives. The first part of the book covers definition, classification, pathophysiology, pathology, biomarkers and animal models of pulmonary hypertension, thus laying the conceptual basis for what follows. The middle section provides an overview of the established therapies, such as calcium channel blockers, prostanoids, endothelin receptor antagonists, phosphodiesterase-5 inhibitors and inhaled nitric oxide. The concluding section explores novel pathways and emerging therapeutic approaches including soluble guanylate cyclase stimulators, Rho-kinase inhibitors, inhibitors of serotonin receptors and transporters, peptide growth factors, vasoactive peptides, modulators of redox equilibrium and cyclic nucleotides homeostasis, as well as immunosuppressive and anti-proliferative agents. Particular attention is given to clinical applications of these experimental therapies. "
About 8000 clinical trials are undertaken annually in all areas of medicine, from the treatment of acne to the prevention of cancer. Correct interpretation of the data from such trials depends largely on adequate design and on performing the appropriate statistical analyses. In this book, the statistical aspects of both the design and analysis of trials are described, with particular emphasis on recently developed methods of analysis.
This book provides an overview of modern sensing technologies and reflects the remarkable advances that have been made in the field of intelligent and smart sensors, environmental monitoring, health monitoring, and many other sensing and monitoring contexts in today's world. It addresses a broad range of aspects, from human health monitoring to the monitoring of environmental conditions, from wireless sensor networks and the Internet of Things to structural health monitoring. Given its breadth of scope, the book will benefit researchers, practitioners, technologists and graduate students involved in the monitoring of systems within the human body, functions and activities, healthcare technologies and services, the environment, etc.
Therapeutic regimens for visceral leishmaniasis (also Kala-azar, Dum-dum fever or black fever), caused by parasitic protozoa of the Leishmania genus, evolve at a pace never seen before. Spread by tiny and abundant sand flies, the parasite infects internal organs and bone marrow and if left untreated will almost always result in the death of the host. In developing countries successful diagnosis and treatment are complicated by asymptomatic cases, undernutrition and Kala-azar/HIV co-infections. This book brings together world-renown experts writing state-of-arts review on the progress in diagnosis and treatment of visceral leishmaniasis, ultimately leading to the complete elimination of this fatal disease from South Asia. The chapters provide valuable information for disease control as well as therapy and the diagnostic improvements necessary for early treatment, subclinical detection and drug-resistant cases. The presented methods allow for points-of-care testing in the endemic area, enabling rapid detection in resource-poor settings with easy handling and low costs. This book provides essential information for scientists, medical practitioners and policy makers involved in the diagnosis, treatment and elimination of Kala-azar.
Case-based reasoning (CBR) is an Artificial Intelligence (AI) technique to support the capability of reasoning and learning in advanced decision support systems. CBR exploits the specific knowledge collected on previously encountered and solved situations, which are known as cases. In this book, we have collected a selection of papers on very recent CBR applications. These, after an in-depth analysis of their specific application domain needs, propose proper methodological solutions and give encouraging evaluation results, which have in some cases led to the commercialization step. The collected contributions demonstrate the capability of CBR to solve or handle issues which would be too difficult to manage with other classical AI methods and techniques, such as rules or models. The heterogeneity of the involved application domains indicates the flexibility of CBR, and its applicability in all those fields where experiential knowledge is (readily) available.
Over the last two decades, the analysis of blood pressure and heart rate variability has been increasingly used to obtain information on the mechanisms responsible for cardiovascular regulation in different physiological and pathological conditions. The evidence gathered so far has strongly supported the ability of this approach to provide unique insights into the factors involved in cardiovascular control. However, studies making use of these techniques have also underlined a number of problems concerning both the selection of the most appropriate analysis procedure to be used in a given situation and the interpretation of the results thus obtained. In this book volume leading experts from both the technological and the medical milieu have deeply addressed these issues. New tools for describing the regulation of the heart and the peripheral circulation in terms of 1/f processes, nonlinear and chaotic and complex systems have also been discussed. The overall result is a collection of contributions which provide the most recent development in this stimulating field.
Presenting topics from the basic application of molecular genetics to more complex gene expression analysis using different models of study, this detailed volume explores asthma through the lens of genetics, considered to play an essential role in the etiopathogenesis of the disease. Since asthma is a complex disease, this book is designed to provide a review of the most useful techniques with examples of their applications in specific laboratory protocols. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Molecular Genetics of Asthma serves as an ideal guide to researchers investigating this vital field of study.
This book presents an overview of the most important current developments in the pre-analytical handling of tissue. It addresses in particular potential ways to improve the situation whereby methods employed in the pre-analytical phase - the period from surgical removal of tissue to the start of pathological processing - have remained essentially unchanged for decades with only modest standardization. It is examined how the pre-analytical period can be optimized, resulting not only in an increase in diagnostic quality but also in a reduction in processing time and costs. Among the key topics examined are the so-called cold ischemia time between tissue removal and fixation, the potential superiority of vacuum-based preservation over immediate formalin fixation, two-temperature fixation, molecular analysis methods, and the pre-analytics of specimens from particular tissues. Readers will find this book to be an important update that reveals the full importance of the pre-analytical phase for quality of pathological work-up.
SocialBonding,aProductofEvolution: anIntroductiontotheVolume Mechanisms underlying reproductive and maternal functions or coping represent the initialstructuringforcebehindmanysocialbehaviors.Theyareaccompaniedbysel- tivehormonalenvironmentsaimedatfacilitatingor stabilizingthem.Sexandadrenal steroids are major players in the regulation of reproductive functions and coping challenges, but other hormones also participate in a variety of social behaviors (in particular,oxytocinandvasopressin,twophylogeneticallyveryoldmoietiesoriginally associated with maternal care and water balance) and are receiving increasing att- tion. Their role is highlighted in the present volume, which gathers contributions to theColloqueMedicineetRecherche"HormonesandSocialBehavior"organizedbythe FondationIPSENinDecember 2007. Whatisthekeytounderstandingtherationaleofhormonalsubstratesofbehavior? Evolution, of course. Higher manifestations of social behavior have evolved from - productivebehavior,characterizedbyErnstMayras"theleadingedgeofevolutionary change." As formulated by one contributor to thisvolume, however, "the evolutionary increase in neocortex seen in primates has induced a signi?cant emancipation of - havior from hormonal determinants, and in parallel, an increasing role for intelligent socialstrategies"(Keverne 2008). In so-called "lower" mammalian animals, many social behaviors are closely - pendent upon the olfactory system, a component of autonomous regulation of such importancethatitexpressesalargeproportionofallreceptorgenespresentinthebrain. Whenonelooksat"higher"mammalssuchasprimates,olfactorycontrolbecomesless stringent. Olfactory structures exhibit the same number of receptor genes, but a large number are transformed into non-coding "pseudogenes." In parallel, hormones i- tially targeted on physiological functions become increasingly associated with more diversi?edcognitivefunctions.
Over the past 10 years, work on acute promyelocytic leukemia (APL) has become the paradigm of translational research that began with the discovery of a recurrent chromosomal translocation, followed by the identification of the genes and proteins involved, finding their molecular functions in transcriptional control, establishing mouse models and culminating in the development of targeted therapy.
The research field of biobanks and tissue research is highly promising. Many projects around the globe are involved in the collection of human tissue and health data for research purposes. These initiatives are driven by the perspective of decisive breakthroughs in the knowledge of the genetic pathways involved in widespread diseases. However, there are considerable ethical and legal challenges to be considered as well. These challenges encompass the use of body material for research purposes, the misuse of genetic and other health data by third parties, trust in science and medicine, concerns regarding privacy, use of genetic data for forensic applications by the state and the police, and regulatory issues. This volume is divided into three parts: the inclusion of the public, the rights of donors and patients, examples and recommendations for the future of tissue research. It presents a comprehensive overview of the most important topics in the field by renowned scholars in medical ethics and biolaw. |
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