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Books > Medicine > Pre-clinical medicine: basic sciences > Physiology > General
The human brain represents about 2% of the body weight, yet it accounts for approximately 20% of aerobic metabolism. This high dependency on energy-consuming processes is mainly caused by the active transport of ions, which is necessary to compensate for the transmembrane ion currents that are part ofthe complex signaling processes in the brain. Ninety-five percent ofthe brain's ATP is derived from mitochondrial oxidative phosphorylation. Since that organ' s storage capacity for oxygen is minimal, any interruption of oxygen delivery to brain cells willlead to changes in membrane excitability and, there fore, to disruption of neuronal signaling within seconds. It seems that mamma lian brain is especially vulnerable to such an interruption, since oxygen deprivation leads to activation of ion channel mechanisms in neurons that impair their communications. Thus, the function of the brain as a coordinator of vital homeostatic reflexes, and complex body reactions to external challenges, depends critically on the rate of oxygen delivery and oxygen consumption. Oxygen delivery depends on two variables described in the Fick relation ship: volume flow rate ofblood and the arterial oxygen content. A reduction in either of these two variables will have serious effects on vital brain func tions. Reduction of arterial blood flow to the brain can be caused by cardiac arrest, shock, carotid occlusion, Of hypotension (global ischemia). Oxygen content is progressively decreased in asphyxia (including drowning)."
Atrial Fibrillation from an Engineering Perspective provides an up-to-date overview of techniques developed for acquisition, modeling, and analysis of noninvasive, bioelectrical signals reflecting this common arrhythmia. Special emphasis is put on emerging technologies for monitoring of atrial fibrillation in connection with ischemic stroke, interventional ablation procedures, and pharmacological treatment, applications which all depend on the availability of techniques for detecting and characterizing episodes of paroxysmal atrial fibrillation. Detectors exploring both rhythm and morphology are described, as well as detectors confined to rhythm and better suited for low power implementation. A wide variety of approaches to modeling and characterization of atrial activity are described, emanating from a statistical and deterministic starting points. This book is suitable for graduate students, researchers, and engineers who want a comprehensive treatise of atrial fibrillation from an engineering perspective. It may be used for self-study, as a supplement to courses in signal processing, or as a modern monograph by researchers in the field of atrial fibrillation.
1. Broad introductory psychology text with a biological focus which includes content on brain anatomy (something normally left out of standard introductory texts). 2. Packed full of pedagogical features including questions to test reader knowledge, sections to demonstrate real-world applications and a key terms and concepts glossary. 3. The book also reflects the latest APA Guidelines for the undergraduate psychology major (2013).
As nutrition research is shifting its focus from epidemiology and physiology to effects of nutrients at the molecular level, a uniquely tailored diet that corresponds to the demands of our genetic signature is emerging as an indispensable need. Using high-throughput genomic tools, nutrigenomics unravels the influence of micro- and macronutrients as potent dietary signals regulating metabolic pathways and unmasks how susceptible genotypes are predisposed to diet-related diseases. Selected topics from this field have been covered in some books, but no other comprehensive text on epigenetics, nutrition, and human health and disease is available, until now. This book illustrates nutrition's influence on epigenetic inheritance and the mechanisms underlying the modification of the metabolic imprint of an individual. This enriched understanding of nutrigenomics can be applied to master a tailored diet that can alleviate imprinted metabolic syndromes. Specifically, the book focuses on: * Maternal, perinatal, and neonatal nutrition * Epigenetic mechanisms and cancer * Impacts of dietary factors, folate deficiency and DNA methylation * Nutrition's influence on genetic imprinting * The basics of nutrigenomics and epigenetic regulation
Molecular Signalling: Ca2+-Signaling in Cardiac Myocytes: Evidence from Evolutionary and Transgenic Models; M. Morad, Y.J. Suzuki. Diastolic Viscoelastic Properties of Rat Cardiac Muscle; Involvement of Ca2+; B.D.M.Y. Stuyvers, et al. The Contractile Mechanism and Energetics: Molecular Control of Myocardial Mechanics and Energetics: The Chemo-Mechanical Conversion; A. Landesberg. Myocardial Cell Energetics; H. Kammermeier. Cardiac Mechanics and Flow Dynamics: How Cardiac Contraction Affects the Coronary Vasculature; N. Westerhof, et al. Dynamic Interaction between Myocardial Contracton and Coronary Flow; R. Beyar, S. Sideman. Vascular Structure and Remodeling: Endothelial Gene Regulation by Laminar Shear Stress; N. Resnick, et al. Myocardial Structure and Function. Tissue Remodeling with Micro-Structurally Based Material Laws; P. Hunter, T. Arts. Electrical Activation and Propagation: Cardiac Excitation: An Interactive Process of Ion Channels and Gap Junctions; Y. Rudy, R.M. Shaw. The Cardionome: Concepts in Modeling: Design and Strategy for the Cardionome Project; J.B. Bassingthwaighte. 20 Additional Chapters. Index.
Leading researchers are specially invited to provide a complete understanding of a key topic within the multidisciplinary fields of physiology, biochemistry and pharmacology. In a form immediately useful to scientists, this periodical aims to filter, highlight and review the latest developments in these rapidly advancing fields.
The groundbreaking science behind the surprising source of good health Stanford University's Justin and Erica Sonnenburg are pioneers in the most exciting and potentially transformative field of human health and wellness, the study of the relationship between our bodies and the trillions of organisms representing thousands of species to which our bodies play host, the microbes we call the microbiota. The Sonnenburgs argue that the microbiota determines in no small part whether we're sick or healthy, fit or obese, sunny or moody-and that the microbiota has always been with us, coevolving with humans and entwining its functions with ours. They show us that humans are really composite organisms with microbial and human parts. But now, because of changes to diet, antibiotic over-use, and over-sterilization, our gut microbiota is facing a "mass extinction event," which may explain the mysterious spike in some of our most troubling modern afflictions, from food allergies to autism, cancer to depression. It doesn't have to be this way. The Good Gut is a groundbreaking work that offers a new plan for health that focuses on how to nourish your microbiota, including recipes and a menu plan. The Sonnenburgs show how we can keep our microbiota off the endangered species list and strengthen the community that inhabits our gut and thereby improve our own health. In this important and timely investigation, they look at safe alternatives to antibiotics; dietary and lifestyle choices to encourage microbial health; the management of the aging microbiota; and the nourishment of your own individual microbiome. Caring for our gut microbes may be the most important health choice we can make.
In this Edited Volume, a diverse group of exercise metabolism experts, assembled a multi-facetted collection of fascinating contributions. The chapters focus on metabolism during exercise, including anaerobic and aerobic metabolism, carbohydrate metabolism (separate chapters on muscle glycogen and blood glucose), fat metabolism (separate chapters on muscle and adipose tissue) and protein metabolism. Readers will find discussion on various tissues in addition to skeletal muscle, such as liver, heart and brain metabolism during exercise. In addition, the book includes chapters on other perspectives such as thermodynamic and bioenergetic aspects of exercise and a dive into history. Another focal point is on the effects of exercise in relation to training, age, sex, fatigue and the circadian rhythm. This contemporary collection will be an essential resource for Physiologists, Sports Scientists, Coaches, Athletes and students alike.
This book covers the latest developments in the therapeutic implications of angiogenesis, ranging from angiogenesis in the brain, angiogenesis in cancer, angiogenesis' role in atherosclerosis and heart disease as well as metabolic disorders and peripheral vascular disease. The book is comprehensive in its coverage of angiogenesis in a diverse set of diseases and examines the role of cellular and subcellular structures during the development of angiogenesis. Well-organized and thorough, this is an ideal book for researchers and biomedical engineers working in the field of therapeutic implications of angiogenesis. This book also: Covers the basics of the physiology of angiogenesis, including VEGF pathways in angiogenesis, integr ins in angiogenesis, angiogenesis and exercise physiology, and more Details the role of angiogenesis in atherosclerosis and heart disease, including vascular endothelial growth factor and atherosclerotic plaque progression as well as angiogenesis and heart failure Illustrates in detail brain angiogenesis after stroke and the relationship between angiogenesis and Alzheimer's disease
Vasopressin is a hormone which has an increasingly important profile. Not only does it play a physiologically significant role in renal water regulation but it also has other renal actions and plays a role in overall cardiovascular control. Even more interesting is the recent growing interest in its potential effects on the brain, notably its influence on specific behaviours. This monograph about the polypeptide vasopressin covers all aspects relating to the production, control of release, and actions of this molecule within the body, including its roles as a hormone and as a central neurotransmitter. A consideration of the evolution of the molecule across the species and a brief historical perspective are also included. Clinical conditions associated with hypo- and hyper-production states are considered together with aspects of treatment, in addition to other clinical correlates.
Integrates Student Knowledge of Nutrition Science with Physiology Today's knowledge of human health demands a multidisciplinary understanding of medically related sciences, and Case Studies in the Physiology of Nutrition answers the call. Dedicated to the integration of nutrition science with physiology, this text cohesively incorporates descriptions of human problems in order to stimulate students' critical thinking about how the body integrates various physiological factors to maintain homeostasis. Contains Key Points, Vocabulary Exercises, and Critical Thinking Problems This textbook uses short story-type case studies about fictional individuals who have health problems in order to address a range of issues in an approachable manner. The studies vary in difficulty, with some being straightforward with very simple answers, while others require in-depth thinking and literature research to solve. Each study presents patient background, symptoms, clinical finding, and questions to ponder. Upon qualifying course adoption, this book also includes a valuable instructor's manual, which provides solutions to exercises, problem analysis, and resolution to each case study. This ready-to-implement resource addresses: Homeostasis Obesity and malnutrition Anemia and diabetes Nutrient-gene expression Immune system Food safety Aging and nutrition Muscle and bone studies Case Studies in the Physiology of Nutrition provides an understanding of nutritional components by defining biochemical, mechanical, and physical functions. Its unique approach will aid students in relating functionality to system failure as well as understanding the role of environment in health and nutrition.
Bundle includes: 9781119576488 Fundamentals of Anatomy and Physiology: For Nursing and Healthcare Students, 3rd Edition A concise yet comprehensive introduction to the structure and function of the human body. Written with the needs of nursing and healthcare students in mind, this best-selling textbook incorporates clinical examples and scenarios throughout to illustrate how the topics covered are applied in practice. Hundreds of full-colour illustrations complement numerous case studies encompassing all fields of nursing practice, alongside learning outcomes, self-assessment tests and other effective learning tools. 9781119699491 Fundamentals of Applied Pathophysiology: An Essential Guide for Nursing and Healthcare Students, 4th Edition A highly visual and accessible introduction to pathophysiology for nursing and healthcare students, including brand-new content on homeostasis, a systematic approach to assessment, and key terminology. The book features links to clinical observations, vital signs to observe, investigation boxes, clinical red flags, medication alerts, and the latest, contemporary evidence for care management, including National Early Warning Score 2 (NEWS2).
Like many of us, journalist David K. Randall never gave sleep much thought. That is, until he began sleepwalking. One midnight crash into a hallway wall sent him on an investigation into the strange science of sleep. In Dreamland, Randall explores the research that is investigating those dark hours that make up nearly a third of our lives. Taking readers from military battlefields to children s bedrooms, Dreamland shows that sleep isn't as simple as it seems. Why did the results of one sleep study change the bookmakers odds for certain Monday Night Football games? Do women sleep differently than men? And if you happen to kill someone while you are sleepwalking, does that count as murder? This book is a tour of the often odd, sometimes disturbing, and always fascinating things that go on in the peculiar world of sleep. You ll never look at your pillow the same way again."
When human muscle fatigues, athletic performance becomes impaired. For those individuals suffering muscle or metabolic diseases the effects of muscle fatigue can make everyday tasks difficult. Understanding the scientific processes responsible for skeletal muscle fatigue is therefore central to the study of the physiology of sport, exercise and health. Written by a team of leading international exercise scientists, this book explores the mechanisms of muscle fatigue and presents a comprehensive survey of current research on this important topic. Examining the wide variety of protocols, assessment methods and exercise models used to study muscle fatigue, the book explores the differential effects of fatigue as influenced by:
Human Muscle Fatigue covers both clinical and applied approaches in sport and exercise physiology and devotes an entire section to the conceptual framework underpinning research in this area, helping readers from a wide range of backgrounds to engage with the topic. Accessible and detailed, this book is a key text for students and practitioners working in exercise and sports science, medicine, physical therapy and health.
In 1772 in Uppsala the Swedish chemist Karl Wilhelm Scheele discovered the element Oxygen. Two hundred and one years later, in 1973, the International Society on Oxygen Transport to Tissue (ISOTT) was founded. Since then there has been an annual ISOTT meeting. After 24 years of international ISOTT meetings it was decided, at the 2005 summit in Bary, Italy, that the 2007 meeting was to be held in Uppsala, Sweden. Thus, after the Louisville meeting we, in the Uppsala group, withdrew to the Edgewater Resort at Taylorsville Lake outside Louisville and prepared the Uppsala ISOTT meeting by tasting Kentucky Bourbons, smoking cigars while bathing in a jacuzzi in the hot dark Kentucky night full of fire flies and a sky full of stars. The ISOTT program should include different aspects of oxygen - however, it is accepted that each meeting has its own local "touch". We decided to focus the Uppsala ISOTT meeting on the theme of "Imaging and measuring oxygen changes". With this in mind we invited scientists within and outside the ISOTT society. We then also received lots of good abstracts from ISOTT members that were included in the program. Lars-Olof Sundeloef introduction speech "AIR AND FIRE" concerned how oxygen was discovered in Uppsala in 1772 by Karl Wilhelm Scheele. After the introduction speech a get together event took place in the magnificent and spacious foyer of Uppsala University main building. The vice chancellor Ulf Pettersson welcomed all delegates to Sweden and Uppsala.
This book brings together the most up-to-date information about the physiology of progestogens. Addressing the bidirectional communication between hormones, fertility, tumors, and autoimmunity, it provides the basic science and clinical perspectives of progestogens which have not been previously available in one volume. In addition to estrogens, androgens, mineralocorticoids and glucocorticoids, progestogens are a major class of steroid hormone. While present in certain phases of estrous and menstrual cycles, progestogens are named for their function in maintaining pregnancy. This book is essentially practical in orientation, addressing the specific issues that confront the practitioner, and provides information to Obstetricians, Gynecologists, Reproductive endocrinologists, as well as Gynecological Oncologists and Rheumatologists. Contributions are from an international team of experts in the field, now completely updated in this new edition with new developments in primary dysmenorrhea and contraception.
This significantly updated and expanded new edition presents the scientific foundations of inhalation research essential to the design and conduct of toxicologic studies. It explores the full range of numerous scientific developments in the field, including recent advances in biology and the rapidly increasing global concerns and studies on particulate air pollution. Key topics in the "Second Edition" include: - new developments in the ultrafine particle health effects and concentrated aerosol research - advances in understanding postnatal lung growth and the deposition and clearance of inhaled particles - new techniques in toxicity testing - the explosion of knowledge in the genetic and molecular realms - the introduction of a large number of transgenic animal models - updated ethical guidelines for animal testing - the emergence of aerosol medicine - the growing threat of aerosol-related terrorism - increased appreciation of nonpulmonary effects of inhaled substances - use of medical scanning techniques to study respiratory tract structure - the introduction of new inhalation exposure systems - the emergence of aerosol concentrators for use in air pollution studies
Hepatocytes account for approximately 80% of the liver mass and play a significant role in various aspects of liver physiopathology, exhibiting unrivaled complexity and diversity of functions. In Hepatocytes: Methods and Protocols, expert researchers provide the reader with methods, technical protocols, and review chapters focusing on selected areas of hepatocyte biology including isolation, culture, differentiation and stem cells, and hepatocyte use in clinical, basic, and applied research. With a specific emphasis on human hepatocytes, the volume presents chapters covering subjects including hepatocyte culture models, cryopreservation methods, differentiation assessment, liver ontogenesis, production of hepatocytes from stem cells, drug/xenobiotic metabolism, toxicity and transport, bile acid and blood coagulation factor production, infection by HBV and HCV, humanized animals, biortificial liver devices, hepatocyte transplantation. As a volume in the highly successful Methods in Molecular Biology (TM) series, protocol chapters include brief introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and notes on troubleshooting and avoiding known pitfalls. Comprehensive and cutting-edge, Hepatocytes: Methods and Protocols will be useful to all those who are currently using or planning to use human, or animal, hepatocytes to investigate any aspect of liver physiopathology or who are interested in liver development or liver stem cells and liver biotherapy.
Medicine and engineering work together towards solutions for biomedical problems. The interactions of blood elements with artificial materials (bags, tubes, artificial organs, etc.) require many disciplines for its understanding. Thus the effort presented in this book is the culmination of a genuine discussion on the problems arising in blood banks, in hospitals, in biomaterials development, in experimental haemocompatibility testing when platelets interact with biomaterials. Haematologists, chemists, biologists and engineers have tried to put their own point of view and to understand the point of view of the other disciplines. The main themes that are presented in the discussion are: platelet collection, storage and transfusion; haemostasis and anticoagulation; platelet and biomaterials, extracorporeal circulation and implanted materials; haemorheological parameters; modulation of platelet function; biological tests for evaluating platelet biomaterial interactions.
A firm grasp of the functions of living organisms is one of the most important prerequisites to pharmacy study. The long-awaited second edition of Essentials of Human Physiology presents concepts in physiology in a way that prepares students for their subsequent study of pathophysiology, pharmacology, and pharmacotherapeutics. Thoroughly revised and updated, this text maintains the clarity of the first edition, yet provides important new information to give students a solid grounding in some of the most important aspects of pharmacy. As with the first edition, the book begins with an overview of the fundamental aspects of cell membrane physiology with particular emphasis on nerve cell function. This is followed by a detailed discussion of the two major regulatory systems in the body: the nervous system and the endocrine system. The book then continues with in-depth presentations of the reproductive, muscular, cardiovascular, immune, respiratory, digestive, and renal systems. An important focus throughout the text is how tissue and organ function are regulated in order to maintain homeostasis. New in This Edition: * All 19 chapters updated and expanded * Revised and additional subsections of pharmacy applications * New sections on medical terms with pronunciations and definitions * New chapters on the reproductive and immune systems * Additional figures and tables to clarify information . This book was written by Laurie Kelly McCorry, a professor of physiology for eighteen years. Using simple, straightforward language, the text presents the science of physiology clearly so that undergraduate students will understand the relevance of these concepts as they relate to the practice of pharmacy. By studying and mastering the principles in this text, students will develop a secure foundation in human physiology so that they are better equipped to meet the challenges in their pharmacy career.
Combining topics from numerous applications in biomechanics, Applied Biomedical Engineering Mechanics demonstrates how to analyze physiological processes from an engineering perspective and apply the results to tertiary medical care. The book extends its discussion to the investigation of diagnostic and surgical procedures. It also presents guidelines for prostheses design and explains how to optimize performance in sports games such as soccer, baseball, and gymnastics. Using a problem-based format, the book explains how to- - Formulate diagnostic and interventional procedures, based on the analysis of physiological and organ system-based processes - How human anatomical structures and physiological processes are designed for optimal functionality - Develop orthopedic surgical approaches, using pre-surgical analysis - Assess and promote fitness, and analyze sports games to maximize competency. The world-class instruction presented within Applied Biomedical Engineering Mechanics clearly demonstrates how to quantify physiological processes in order to formulate solutions to various medical problems.
This new, comprehensive analysis of human cardiovascular control explains the control of pressure, vascular volume and blood flow during orthostatis and exercise. Analysis of the physical properties of the vascular system and their modification by mechanical, neural, and humoural factors is highlighted by novel graphical representations of basic concepts. Interactive effects of the vasculature on cardiac performance and factors that both control and limit oxygen transfer from lungs to cells are stressed. This complete account will prove invaluable for all medical students, physiologists and clinicians who wish to better understand the reflex and hormonal control of the human cardiovascular system.
In Endothelin: Molecular Biology, Physiology, and Pathology, academic, clinical, and industrial researchers summarize the dramatic recent progress that has been documented in endothelin research and indicate the optimal direction of future studies. The contributors, highly respected authorities in their fields as well as active bench scientists, produce a critical evaluation and synthesis of our knowledge of endothelin chemistry and pharmacology, its mechanism of action, and its physiological functions. Endothelin: Molecular Biology, Physiology, and Pathology is certain to become the new standard reference source for both basic scientists and informed clinicians who want a clear idea of the roles endothelin may play in cardiovascular physiology and pathology. Biochemists, as well as medicinal and clinical chemists, involved in the development of drugs designed to alter the action or expression of the endothelin molecule will find the book rich in new results and insights.
report on the latest developments in the field with new information in basic as well as in clinical sciences, S"odium in Health Diseases," covers both the physiology of sodium balance and how it relates to disease. Expertly written, its concise text examines ATPase, transport and receptor systems, and sodium balance as it relates to sex hormones, genes, and body fluid. This text will also examine disease based on animal models, genetic disorders, and the influence of sodium on pulse pressure, isolated systolic hypertension, and its blood pressure sensitivity. "Sodium in Health and Disease" will - cover the newest data on sodium transport by the epithelial sodium channel or the impact of renal structure proteins on sodium transport - discuss the latest developments in our understanding of the role of aldosterone and 11-beta-hydroxysteroid dehydrogenase in the regulation of sodium balance. - present original observations on the role of salt in isolated systolic hypertension and in the development of arterial stiffness. - give new data on renal sodium handling in women and in diabetes and the metabolic syndrome. Important topics covered: - the epithelial sodium channel - renal structure proteins and sodium transport - the 11-beta-hydroxysteroid dehydrogenase - the Integrative regulation of sodium sodium
In the forty years since melatonin's isolation and characterization, a large and multifaceted database has accrued. This book documents the diverse research contributions of most of the major laboratories in the field of melatonin research, as presented in a special conference to mark the 40 year anniversary of the isolation and chemical identification of this hormone. In addition, many chapters by younger scientists provide an exciting glimpse of where melatonin research is heading in the future. |
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