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Books > Medicine > Pre-clinical medicine: basic sciences > Physiology > Cellular physiology
Features that characterize the aging process include the gradual accumulation of cell damage after prolonged exposure to oxidative and inflammatory events over a lifetime. In addition to the accretion of lesions, the intrinsic levels of pro-oxidant and aberrant immune responses are elevated with age. These adverse events are often further enhanced by the chronic and slow progressing diseases that characterize the senescent brain and cardiovascular system. The incidence of some disorders such as Alzheimer's disease and vascular diseases are sufficiently prevalent in the extreme elderly that these disorders can arguably be considered "normal". Aging and Aging-Related Disorders examines the interface between normal and pathological aging, and illustrates how this border can sometimes be diffuse. It explores and illustrates the processes underlying the means by which aging becomes increasingly associated with inappropriate levels of free radical activity and how this can serve as a platform for the progression of age-related diseases. The book provides chapters that examine the interactive relationship between systems in the body that can enhance or sometimes even limit cellular longevity. In addition, specific redox mechanisms in cells are discussed. Another important aspect for aging discussed here is the close relationship between the systems of the body and exposure to environmental influences of oxidative stress that can affect both cellular senescence and a cell's nuclear DNA. What may be even more interesting to note is that these external stressors are not simply confined to illnesses usually associated with aging, but can be evident in maturing and young individuals. A broad range of internationally recognized experts have contributed to this book. Their aim is to successfully highlight emerging knowledge and therapy for the understanding of the basis and development of aging-related disorders.
Current techniques for studying biological macromolecules and their interactions are based on the application of physical methods, ranging from classical thermodynamics to more recently developed techniques for the detection and manipulation of single molecules. Reflecting the advances made in biophysics research over the past decade, and now including a new section on medical imaging, this new edition describes the physical methods used in modern biology. All key techniques are covered, including mass spectrometry, hydrodynamics, microscopy and imaging, diffraction and spectroscopy, electron microscopy, molecular dynamics simulations and nuclear magnetic resonance. Each method is explained in detail using examples of real-world applications. Short asides are provided throughout to ensure that explanations are accessible to life scientists, physicists and those with medical backgrounds. The book remains an unparalleled and comprehensive resource for graduate students of biophysics and medical physics in science and medical schools, as well as for research scientists looking for an introduction to techniques from across this interdisciplinary field.
Rapid progress has been made in our understanding of the molecular mechanisms of cell growth and oncogenesis during the past decade. This book comprises recent results on the regulation of cell growth in normal and neoplastic tissues by growth factors including hormones, and by the activation and inactivation of oncogenes and tumor suppressor genes, respectively. Special attention has been given to the presentation of the frequently neglected close correlation between changes in signal transduction and metabolism pathways during oncogenesis.
In 1898, an Austrian microbiologist Heinrich Winterberg made a curious observation: the number of microbial cells in his samples did not match the number of colonies formed on nutrient media (Winterberg 1898). About a decade later, J. Amann qu- tified this mismatch, which turned out to be surprisingly large, with non-growing cells outnumbering the cultivable ones almost 150 times (Amann 1911). These papers signify some of the earliest steps towards the discovery of an important phenomenon known today as the Great Plate Count Anomaly (Staley and Konopka 1985). Note how early in the history of microbiology these steps were taken. Detecting the Anomaly almost certainly required the Plate. If so, then the period from 1881 to 1887, the years when Robert Koch and Petri introduced their key inventions (Koch 1881; Petri 1887), sets the earliest boundary for the discovery, which is remarkably close to the 1898 observations by H. Winterberg. Celebrating its 111th anniversary, the Great Plate Count Anomaly today is arguably the oldest unresolved microbiological phenomenon. In the years to follow, the Anomaly was repeatedly confirmed by all microb- logists who cared to compare the cell count in the inoculum to the colony count in the Petri dish (cf., Cholodny 1929; Butkevich 1932; Butkevich and Butkevich 1936). By mid-century, the remarkable difference between the two counts became a universally recognized phenomenon, acknowledged by several classics of the time (Waksman and Hotchkiss 1937; ZoBell 1946; Jannasch and Jones 1959).
Alzheimer s disease (AD) is a neurodegenerative disease that robs the minds of our elderly population. Approximately one in every eight adults over the age of 65 and nearly half of those over 85 are afflicted with this disease. The aging population in developed societies will impose an ever increasing socioeconomic threat in the future. Current medicines for AD patients are mainly symptomatic treatments and a huge unmet medical need exists to slow the progression of this disease. A great deal of research has been dedicated to understanding the pathogenesis of AD from which comes many ideas for intervening with its progression. Some of these ideas have been fast-tracked to clinical trials due to the availability of medicines with proven clinical efficacies for other diseases (e.g. atorvastatin, simvastatin, rosiglitazone and clioquinol) while others represent novel chemical entities (e.g. glycogen synthase kinase-3 inhibitors). This volume will first review existing cholinesterase inhibitors prescribed for AD patients followed by some target mechanisms with ongoing clinical trials. It offers a glimpse of what our future medicine cabinets may look like for AD patients. It also provides an interesting read on why and how current medicines for other indications could potentially be used to treat AD."
Death receptors play a central role in directing apoptosis in mammalian cells. This process of active cell death is important for a number of biological processes, e.g. for the regulation of the immune system. Death receptors are cell surface receptors that transmit apoptotic signals initiated by corresponding death ligands. Many complex signaling pathways are activated and apoptosis is the final result of a complex biochemical cascade of events. Besides their role in the induction of cell death, evidence now exists that death receptors are able to activate several non-apoptotic signaling pathways which, depending on cellular context, may lead to apoptosis resistance, secretion of pro-inflammatory proteins, proliferation and invasive growth of cancer cells. This book looks at the molecular basis of death receptor signaling and the role of death receptors in cancer development.
With the ever-increasing volume of information in clinical medicine, researchers and health professionals need computer-based storage, processing and dissemination. In this book, leading experts in the field provide a series of articles focusing on software applications used to translate information into outcomes of clinical relevance. This book is the perfect guide for researchers and clinical scientists working in this emerging "omics" era.
Medical science and practice have undergone fundamental changes in the last 5 years, as large-scale genome projects have resulted in the sequencing of a number of important microbial, plant and animal genomes. This book aims to combine industry standard software engineering and design principles with genomics, bioinformatics and cancer research. Rather than an exercise in learning a programming platform, the text focuses on useful analytical tools for the scientific community.
Contents include: 'Biochemistry and molecular biology of neural lipids', 'Advances in lipid analysis/lipidomics', 'Metabolism and enzymology of glycerolipids', 'Lipid metabolism in brain development and aging', 'Cellular and subcellular localization of neural lipids', and much more.
This book presents a compendium of methodologies for the study of membrane lipids, varying from traditional lab bench experimentation to computer simulation and theoretical models. The volume provides a comprehensive set of techniques for studying membrane lipids with a strong biophysical emphasis. It compares the various available techniques including the pros and cons as seen by the experts.
Neural network research often builds on the fiction that neurons
are simple linear threshold units, completely neglecting the highly
dynamic and complex nature of synapses, dendrites, and
voltage-dependent ionic currents. Biophysics of Computation:
Information Processing in Single Neurons challenges this notion,
using richly detailed experimental and theoretical findings from
cellular biophysics to explain the repertoire of computational
functions available to single neurons. The author shows how
individual nerve cells can multiply, integrate, or delay synaptic
inputs and how information can be encoded in the voltage across the
membrane, in the intracellular calcium concentration, or in the
timing of individual spikes.
Our understanding of cancer is slowly undergoing a revolution, allowing for the development of more effective treatments. For the first time ever, the death rate from cancer is showing a steady decline ... but the 'War on Cancer' has hardly been won. In The Cancer Code, Dr Jason Fung offers a revolutionary new understanding of this invasive, often fatal disease - what it is, how it manifests and why it is so challenging to treat. In this rousing narrative, Dr Fung identifies the medical community's many missteps in cancer research - in particular, its focus on genetics, or what he terms the 'seed' of cancer, at the expense of examining the 'soil,' or the conditions under which cancer flourishes. Dr Fung - whose ground-breaking work in the treatment of obesity and diabetes has won him international acclaim - suggests that the primary disease pathway of cancer is caused by the dysregulation of insulin. In fact, obesity and type 2 diabetes significantly increase an individual's risk of cancer. In this accessible read, Dr Fung provides a new paradigm for dealing with cancer, with recommendations for what we can do to create a hostile soil for this dangerous seed. One such strategy is intermittent fasting, which reduces blood glucose, lowering insulin levels. Another, eliminating intake of insulin-stimulating foods, such as sugar and refined carbohydrates. For hundreds of years, cancer has been portrayed as a foreign invader we've been powerless to stop. By reshaping our view of cancer as an internal uprising of our own healthy cells, we can begin to take back control. The seed of cancer may exist in all of us, but the power to change the soil is in our hands.
I am very pleased to present this volume on engineering stem cells in Advances in Biochemical Engineering and Biotechnology. This volume stays abreast of recent developments in stem cell biology and the high expectations concerning the dev- opment of stem cell based regenerative therapies. Regenerative medicine is the focus of current biomedical research, with unique challenges related to scientific, technical and ethical issues of stem cell research, and the potential added value of connecting biomedicine with enabling techno- gies such as materials sciences, mechanical- and nano-engineering. Research activities in regenerative medicine include strategies in endogenous regeneration of injured or degenerated tissues by means of gene therapy or cell transplantation, as well as complex approaches to replace or reconstruct lost or malformed tissue structures, by applying tissue engineering approaches. In most cases, the speci- ized functional cell types of interest cannot be isolated from the diseased organ or expanded to a sufficient degree, and various stem and progenitor cell types rep- sent the only applicable cell source. In almost all cases, stem cells have to be engineered, sometimes for functional improvement, in many cases to produce large numbers of cells, and frequently to achieve efficient and specific differentiation in the cell type(s) of interest.
This book is a volume in the Penn Press Anniversary Collection. To mark its 125th anniversary in 2015, the University of Pennsylvania Press rereleased more than 1,100 titles from Penn Press's distinguished backlist from 1899-1999 that had fallen out of print. Spanning an entire century, the Anniversary Collection offers peer-reviewed scholarship in a wide range of subject areas.
Cajal's Neuronal Forest: Science and Art continues the tradition set forth by its sister volume Cajal's Butterflies of the Soul (OUP, 2009). This new collection contains hundreds of beautiful rarely-seen-before figures produced throughout the nineteenth century and the beginning of the twentieth century by famed father-of-modern-neuroscience Santiago Ramon y Cajal (1852-1934) and his contemporaries. Cajal was captivated by the beautiful shapes of the cells of the nervous system. He and his fellow scientists saw neurons as trees and glial cells as bushes. Given their high density and arrangement, neurons and glial resembled a thick forest, a seemingly impenetrable terrain of interacting cells mediating cognition and behavior. In unraveling the mysteries of the brain, these researchers encountered an almost infinite number of cellular forms with an extraordinary beauty, which they could not help but put pen to paper, allowing them to discover a new artistic world- the neuronal forest- that gave free rein not only to their imagination, but to a new way of viewing the brain as well. This book has been divided into two parts. The first focuses on the scientific atmosphere in Cajal's times, on the history of the neuron, and the anatomical challenge posed in studying neuronal connections. It also delves into the artistic skills of Cajal and other important pioneers in neuroscience and how the neuronal forests have served as an unlimited source of artistic inspiration. The second consists of 275 original drawings by Cajal. All were published over the course of his scientific career and cover virtually all of his research fields of interest, including the spinal cord, the optic lobe and retina, cerebral cortex, and many other regions of the brain. Cajal's Neuronal Forest: Science and Art is a testament to the natural beauty found in science. Despite the common misconception that the drawings of Cajal and other scientists of the time are pieces of art, these drawings are in fact copies of histological preparations and contributed greatly to the discoveries made in the field of neuroscience. This book is a gem in any library, whether serving as a medical history or a gallery of stunning sketches.
The manipulation and control of cells and sub-cellular structures through magnetic nanoparticle-based actuation is a relatively new technique that has led to novel and exciting biomedical applications. Nanomagnetic actuation is being used in laboratory studies of stem cells to determine how these mechanical cues can be used to control stem cell differentiation for regenerative medicine applications. This book explores this rapidly expanding field. It will interest industry bioscientists and biomedical engineers as well as academics in cellular biomechanics, cell and tissue engineering, and regenerative medicine. Key Features Focuses on the fundamentals and applications of magnetic actuation Includes contributions by world-class researchers from several countries and is edited by a well-known researcher in this field Offers multidisciplinary coverage and applications Supplies extensive references at the end of each chapter
The endothelium, the cell layer that forms the inner lining of blood vessels, is a spatially distributed system that extends to all reaches of the human body. Today, clinical and basic research demonstrates that the endothelium plays a crucial role in mediating homeostasis and is involved in virtually every disease, either as a primary determinant of pathophysiology or as a victim of collateral damage. Indeed, the endothelium has remarkable, though largely untapped, diagnostic and therapeutic potential. This volume endeavors to bridge the bench-to-bedside gap in endothelial biomedicine, with the goal of advancing research and development and improving human health. The book is the first to systematically integrate knowledge about the endothelium from different organ-specific disciplines, including neurology, pulmonary, cardiology, gastroenterology, rheumatology, infectious disease, hematology-oncology, nephrology, and dermatology. Moreover, it is unique in its interdisciplinary approach, drawing on expertise from such diverse fields as evolutionary biology, comparative biology, molecular and cell biology, mathematical modeling and complexity theory, translational research, and clinical medicine.
This unique introductory text explains cell functions using the engineering principles of robust devices. Adopting a process-based approach to understanding cell and tissue biology, it describes the molecular and mechanical features that enable the cell to be robust in operating its various components, and explores the ways in which molecular modules respond to environmental signals to execute complex functions. The design and operation of a variety of complex functions are covered, including engineering lipid bilayers to provide fluid boundaries and mechanical controls, adjusting cell shape and forces with dynamic filament networks, and DNA packaging for information retrieval and propagation. Numerous problems, case studies and application examples help readers connect theory with practice, and solutions for instructors and videos of lectures accompany the book online. Assuming only basic mathematical knowledge, this is an invaluable resource for graduate and senior undergraduate students taking single-semester courses in cell mechanics, biophysics and cell biology.
The Handbook is intended to be a service to the neuroscience community, to help in finding available and useful information, to point out gaps in our knowledge, and to encourage continued studies. It represents the valuable contributions of the many authors of the chapters and the guidance of the editors and most important, it represents support for research in this discipline. Based on the rapid advances in the years since the second edition.
Ion channels are intimately involved in the everyday physiological
functions that enable us to live a full and varied life. When
disease strikes, malfunction of ion channels or their dependent is
often involved, either as the cause or the effect of the illness.
Thus, billions of dollars have been, and still are being, invested
in research to understand the physiological and pathophysiological
functions of ion channels in an attempt to develop novel
therapeutic treatments for a wide range of diseases.
This book series consists of 3 volumes covering the basic science (Volume 1), clinical science (Volume 2) and the technology and methodology (Volume 3) of autophagy. Volume 3 focuses on the technical aspects of autophagy research. It is comprised of two parts. The first part discusses the basic process of autophagy, including its overall classification and individual stages in the life cycle of autophagosomes. The second part discusses the tools, strategies, and model systems in current autophagy research, including cell and animal models, detection and manipulation methods, as well as screening, genomic, proteomic and bioinformatic approaches. The book is written and edited by a team of active scientists. It is intended as a practical reference resource for interested researchers to get started on autophagy studies.
This book consists of 3 volumes: Basic Science (Volume 1), Clinical Science (Volume 2) and Technology and Methodology (Volume 3). Volume 2 focuses on the clinical aspects of autophagy research, discussing the role of autophagy in neuropsychiatric disorders, the cardiovascular, immune, digestive and endocrine systems, as well as tumors, infection, the kidney, and the respiratory and hematological systems. It also addresses autophagy-related drug development. Written and edited by a team of 90 experts, and presenting the state of the art in autophagy research, this book is a valuable reference resource for researchers and clinicians alike. It can also be used as supplementary material for graduate students majoring in biology and medicine
Vast numbers of different prokaryotic microorganisms shape the biosphere, with diverse metabolic capabilities. Determination of genome sequences for a wide range of bacteria and archaea now requires an in-depth knowledge of prokaryotic metabolic function to give biochemical, physiological and ecological meaning to the genomic information. This new edition describes up-to-date knowledge of the key metabolic processes that occur under different conditions, and the cellular processes that determine prokaryotic roles in the environment, biotechnology and human health. Essential for students of microbiology, applied microbiology, biotechnology, genomics and systems biology, this advanced textbook covers prokaryotic structure, composition, nutrient transport, biosynthesis and growth. Newly characterised metabolic pathways are included, as well as the latest understanding of metabolic regulation and stress responses. Additionally, the link between energetics, growth and survival is discussed as well as the maintenance of genetic integrity by the bacterial immune system.
This book series consists of 3 volumes covering the basic science (Volume 1), clinical science (Volume 2) and the technology and methodology (Volume 3) of autophagy. Volume 1 focuses on the biology of autophagy, including the signaling pathways, regulating processes and biological functions. Autophagy is a fundamental physiological process in eukaryotic cells. It not only regulates normal cellular homeostasis, and organ development and function, but also plays an important role in the pathogenesis of a wide range of human diseases. Thanks to the rapid development of molecular biology and omic technologies, research on autophagy has boomed in recent decades, and more and more cellular and animal models and state-of the-art technologies are being used to shed light on the complexity of signaling networks involved in the autophagic process. Further, its involvement in biological functions and the pathogenesis of various diseases has attracted increased attention around the globe. Presenting cutting-edge knowledge, this book series is a useful reference resource for researchers and clinicians who are working on or interested in autophagy.
What every neuroscientist should know about the mathematical modeling of excitable cells. Combining empirical physiology and nonlinear dynamics, this text provides an introduction to the simulation and modeling of dynamic phenomena in cell biology and neuroscience. It introduces mathematical modeling techniques alongside cellular electrophysiology. Topics include membrane transport and diffusion, the biophysics of excitable membranes, the gating of voltage and ligand-gated ion channels, intracellular calcium signalling, and electrical bursting in neurons and other excitable cell types. It introduces mathematical modeling techniques such as ordinary differential equations, phase plane, and bifurcation analysis of single-compartment neuron models. With analytical and computational problem sets, this book is suitable for life sciences majors, in biology to neuroscience, with one year of calculus, as well as graduate students looking for a primer on membrane excitability and calcium signalling. |
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