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Books > Medicine > Pre-clinical medicine: basic sciences > Physiology > General
Angiogenesis is the growth of new blood vessels and is an important
natural process in the body. A healthy body maintains a perfect
balance of angiogenesis modulators. In many serious disease states,
however, the body loses control over antiogenesis. Diseases that
are angiogensis-dependent result when blood vessels either grow
excessively or insufficiently.
Angiogenesis is a multi-stage process that drives the generation of new blood and lymphatic vessels from pre-existing ones. It is highly active during embryogenesis, largely inactive during adulthood but reactivated during wound healing and under a number of pathological conditions including cancer and ocular diseases. In addition to endothelial cells, which line the walls of the vessels, several other cell types (pericytes, macrophages, progenitor cells ) also contribute to angiogenesis. A number of signaling pathways are activated and very finely tune the delicate morphogenetic events that ultimately lead to the formation of stable blood proof neovessels. This book reviews recent advances in our understanding of the molecular and cellular mechanisms of angiogenesis, with a focus on how to integrate these observations into the context of developmental, post-natal and pathological neovascularization. The book was published under the auspices of the French Angiogenesis Society. Most contributors are prominent members of this Society or international researchers who have actively contributed to the Annual Meetings of the Society."
Obesity is currently regarded as one of the major health challenges of the developed world. Excess body weight is an important risk factor for morbidity and mortality from cardiovascular diseases, diabetes, cancer, musculoskeletal disorders and even psychiatric problems and is estimated to cause nearly 3 million deaths per year worldwide. Obesity is not necessarily associated with comorbidities: there are indeed metabolically healthy obese individuals. Thus, we need to consider individuals presenting simple with obesity separately from those at risk of developing or who have already developed complex clinical states potentially leading to disability. Comorbidities can tip the balance of independence in patients who already have functional limitations mainly due to the excess of mass itself or who develop conditions such as diabetes, cardiovascular conditions, non-alcoholic fatty liver disease, where an abnormal metabolism of adipose tissue prevails. Morbid obesity with comorbidities leading to disability represents a real social and economic burden for National Health Systems worldwide. The presence of multiple and associated comorbidities often represents an obstacle to being admitted to hospitals for the treatment of metabolic diseases. On the other hand, clinical units with optimal standards for the treatment of pathological conditions in normal-weight patients are often structurally and technologically inadequate for the care of patients with extreme obesity. The aim of this book is to focus on the pathophysiological and rehabilitative aspects of disabling obesity, highlighting multidisciplinary rehabilitation interventions as key to counteracting the disabling aspects of complicated obesity.
Muscarinic acetylcholine receptors have played a key role in the advancement of knowledge of pharmacology and neurotransmission since the inception of studies in these fields, and the effects of naturally occurring drugs acting on muscarinic receptors were known and exploited for both therapeutic and non-therapeutic purposes for hundreds of years before the existence of the receptors themselves was recognized. This volume presents a broad yet detailed review of current knowledge of muscarinic receptors that will be valuable both to long-time muscarinic investigators and to those new to the field. It describes the detailed insights that have been obtained on the structure, function, and cell biology of muscarinic receptors. This volume also describes physiological analyses of muscarinic receptors and their roles in regulating the function of the brain and of a variety of peripheral tissues. This volume shows how the study of muscarinic receptors continues to provide new and surprising insights not just to the cholinergic system but to the broad areas of neurobiology, cell biology, pharmacology, and therapeutics.
The integrated and advanced science research topic
Man-Machine-Environment system engineering (MMESE) was first
established in China by Professor Shengzhao Long in 1981, with
direct support from one of the greatest modern Chinese scientists,
Xuesen Qian. In a letter to Shengzhao Long from October 22nd, 1993,
Xuesen Qian wrote: You have created a very important modern science
and technology in China
This is an easy-to-use terminology guidebook that is presented in a convenient paperback format. The book contains over 2,000 terms relating to human anatomy and physiology, along with their definitions. The book also includes a complete index and table of contents. (Note that EasyTerms is available for nine different college-level subjects including Nursing and Nutrition.) Although this is college-level material, high school students can use EasyTerms guidebooks to accelerate their education and/or prepare for college, getting a "jump start" on learning words that they'll need before they even arrive on campus. Additionally, the guidebooks can help nearly anyone boost their vocabulary.
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
Master the principles and skills of respiratory care for neonates, infants, and children! Neonatal and Pediatric Respiratory Care, 6th Edition provides a solid foundation in the assessment and treatment of respiratory disorders in children. Clear, full-color coverage simplifies the concepts of respiratory care while emphasizing clinical application. Reflecting the changing face of this profession, this edition unpacks care strategies with coverage of the newest treatment algorithms, interventions, mechanical ventilation technologies, and more. From an expert team of contributors led by Brian K. Walsh, an experienced respiratory therapist and researcher, this text is an excellent study tool for the NBRC's Neonatal/Pediatric Specialty examination. Authoritative, evidence-based content covers all of the major topics of respiratory care for neonates, infants, and children, including both theory and application, with an emphasis on an entry-level BS degree. Nearly 500 full-color illustrations - plus clear tables and graphs - make it easier to understand key concepts. Case studies include a brief patient history and questions for each, showing how concepts apply to the more difficult areas of care for neonatal and pediatric disorders. Complete test preparation is provided through coverage of all the content in the matrix for the 2020 NBRC neonatal/pediatric specialty (NPS) credentialing exam. Learning Objectives at the beginning of each chapter break down key content into measurable behaviors, criteria, and conditions. Key Points at the end of each chapter summarize the more important information in a bulleted format. Assessment Questions at the end of each chapter are written in the NBRC multiple-choice style as found on the Neonatal/Pediatric Specialty (NPS) exam, helping you become familiar with the NBRC testing format. Glossary makes it easy to find definitions of all of the book's key terminology. Answers to assessment and case study questions are provided on the Evolve website. NEW! Logical, easy-to-use organization divides the content into three sections of 1) Neonatal, 2) Pediatrics, and 3) Neonatal and Pediatric combined, mirroring the academic approach of most respiratory care programs. NEW! Updated content reflects the new matrix for the 2020 NBRC Neonatal/Pediatric Specialty (NPS) exam. NEW! Assessment Questions at the end of each chapter are updated to reflect the changes to the 2020 NBRC exam. NEW! Additional treatment algorithms of care are added to relevant chapters.
This volume will explore the most recent findings on cellular mechanisms of inhibitory plasticity and its functional role in shaping neuronal circuits, their rewiring in response to experience, drug addiction and in neuropathology. Inhibitory Synaptic Plasticity will be of particular interest to neuroscientists and neurophysiologists.
The fields of biological and medical physics and biomedical engineering are broad, multidisciplinary and dyanmic. They lie at the crossroads of frontier - search in physics, biology, chemistry, and medicine. The Biological & Me- cal Physics/Biomedical Engineering Series is intended to be comprehensive, covering a broad range of topics important to the study of the physical, che- cal and biological sciences. Its goal is to provide scientists and engineers with textbooks, monographs, and reference works to address the growing need for information. Books in the series emphasize established and emergent areas of science - cluding molecular, membrane, and mathematical biophysics; photosynthetic - ergy harvesting and conversion; information processing; physical principles of genetics; sensory communications; automata networks, neural networks, and cellular automata. Equally important will be coverage of applied aspects of b- logical and medical physics and biomedical engineering such as molecular el- tronic components and devices, biosensors, medicine, imaging, physical prin- ples of renewable energy production, advanced prostheses, and environmental control and engineering. Elias Greenbaum Oak Ridge, TN M. Zamir Department of Applied Mathematics University of Western Ontario London, Ontario, N6A 5B7 CANADA [email protected] Library of Congress Cataloging-in-Publication Data Zamir, M. (Mair) The physics of coronary blood flow / M. Zamir. p. cm. - (Biological and medical physics, biomedical engineering) Includes bibliographical references and index. 1. Coronary circulation. 2. Hemodynamics. 3. Blood flow. I. Title. II. Series. QP108.Z36 2005 612.1?7-dc22 2005042502 ISBN-10: 0-387-25297-5 e-ISBN: 0-387-26019-6 Printed on acid-free paper.
The study and modulation of cortical connections is a rapidly growing area in neuroscience. This unique book by prominent researchers in the field covers recent advances in this area. The first section of the book describes studies of cortical connections, modulation of cortical connectivity and changes in cortical connections with activities such as motor learning and grasping in primates. The second section covers the use of non-invasive brain stimulation to study and modulate cortical connectivity in humans. The last section describes changes in brain connectivity in neurological and psychiatric diseases, and potential new treatments that manipulate brain connectivity. This book provides an up-to-date view of the study of cortical connectivity, and covers its role in both fundamental neuroscience and potential clinical applications.
This book provides a concise set of protocols for assessing basic neutrophil functions, investigating specialized areas in neutrophil research, and completing step-by-step diagnostic assays of common neutrophil disorders. Each of the protocols is written by leading researchers in the field and includes hints for success, as well as guidance for troubleshooting. Scientists and clinicians will find this collection an invaluable aid.
This book contains a collection of papers that were presented at the IUTAM Symposium on Mechanics of Biological Tissue, which was held in Graz, A- tria,fromJune27toJuly2,2004.ThesettingofGrazwasveryappropriatefor the symposium since it is the city where such illustriousscientistsasJohannes Kepler, Ernst Mach, Ludwig Boltzmann, Erwin Schr. odinger and Otto Kratky spent parts of their lives, while the cultural life of Graz provided ample - portunity for complementing the scienti?c proceedings. Graz has an historic centre, which is one of the best preserved old town centres in Europe, and which was added to the UNESCO world cultural heritage list in 1999. Thesymposiumbroughttogether96participantsfromuniversities,research centres and clinics in 19 countries. There were 42 oral presentations, incl- ing 7 keynote lectures, and 15 poster presentations. The keynote lectures were given by P.B. Canham (University of Western Ontario, Canada), S.C. Cowin (City University of New York, USA), K. Hayashi (Osaka University, Japan), J.D. Humphrey (Texas A&M University, USA), P.J. Hunter (University of Auckland, New Zealand), R.S. Lakes (University of Wisconsin, USA), and P.D. Richardson (Brown University, USA).
Each title in the new Integrated series focuses on the core knowledge in a specific basic science discipline, while linking that information to related concepts from other disciplines. Case-based questions at the end of each chapter enable you to gauge your mastery of the material, and a color-coded format allows you to quickly find the specific guidance you need. Bonus STUDENT CONSULT access - included with the text - allows you to conveniently access the book's content online * clip content to your handheld device * link to content in other STUDENT CONSULT titles * and more! These concise and user-friendly references provide crucial guidance for the early years of medical training, as well as for exam preparation. Includes case-based questions at the end of each chapter Features a colour-coded format to facilitate quick reference and promote effective retention Offers access to STUDENT CONSULT! At www.studentconsult.com, you'll find the complete text and illustrations of the book online, fully searchable * "Integration Links" to bonus content in other STUDENT CONSULT titles * content clipping for handheld devices * an interactive community center with a wealth of additional resources * and much more!
The craniofacial musculature, including the extraocular muscles, muscles associated with the auditory system, the masseter, the tongue, and the laryngeal and pharyngeal muscles, all participate in functions that are critical to life: vision, intact of nutrition, breathing, and hearing. Despite their critical importance, the majority of research on skeletal muscle basically has ignored this collection of muscles. This is most likely due to their complexity in form, development, fiber types, physiology, and disease profiles. All these make these muscles extremely difficult to study. Vision depends on voluntary and reflexive eye movements initiated by the oculomotor system. The effector arm of this motor system includes the extraocular muscles and their motor neurons. Mastication, and therefore food intake, depends on the complex movements of the masseter and tongue musculature. The effector arm of this motor system includes the masseter and tongue muscles and their motor neurons. Respiration, human phonation, as well as gestation, depend on the laryngeal and pharyngeal musculature. The effector arm of these motor systems includes the intrinsic and extrinsic laryngeal muscles and the pharyngeal muscles and their motor neurons. Recently there has been a renewed interest in understanding the basic cell biology and pathologies associated with these unusual skeletal muscles. This book will highlight novel findings on the development of these muscles and their innervation, metabolic design, functional consequences of their structural organization, and potential reasons for their differential response to various neuromuscular diseases. In addition, critical areas for future studies will be identified.
Contents E.I. Christensen and R. Nielsen: Role of Megalin and Cubilin in Renal Physiology and Pathophysiology G. Zifarelli and M. Pusch: CLC Chloride Channels and Transporters: A Biophysical and Physiological Perspective S.F.J. van de Graaf, R.J.M. Bindels and J.G.J. Hoenderop: Physiology of Epithelial Ca2 and Mg2+ Transport
This updated edition is a comprehensive treatise that spans the
complete range of basic biochemistry of bone and cartilage
components to the clinical evaluation of disease markers in bone
and joint disorders. With contributions from over 75 international
experts, this latest edition is indispensable reading for those
involved in skeletal research as well as for rheumatologists,
endocrinologists, clinical biochemists, and other clinical
disciplines participating in the management of patients with bone
and cartilage diseases.
This readable and student-friendly guide simplifies and clearly explains the complex concepts and processes of fluids and electrolytes in the human body. It utilizes a step-by-step learning approach and starts with the basics and advances to cover more complex issues. The new edition features revised NCLEX (R) examination-style questions and new case studies. Unique presentation of content allows students to survive and thrive. Material is presented using adult learning principles and various active-learning strategies to engage nursing students of all ages, backgrounds, and learning styles. Consistent chapter format breaks down information into small units and reinforces an effective thinking process. Special icons for Lifespan Considerations, Cultural Implications, Web Links, and Cautions help the student quickly identify special content in the chapter. Memory-reinforcing interactive activities (including fill-in the blank, matching, word jumbles, true/false, and crossword puzzles) promote student learning. Clinical terms and shorthand expressions are highlighted in parentheses to expose students to terminology that they will hear in the hospital setting. Boxed Take Home Points provide the benefit of years of nursing experience that students can use to prepare for their clinical rotation. Original cartoon-character illustrations walk the student through difficult subjects with a lighthearted approach. Cover design and series title better identifies the series as a fun and simple review. What You Will Learn section provides chapter objectives for the reader to aid in their navigation through the chapters. Over 100 NCLEX (R) examination-style review questions have been moved to the ends of chapters to immediately test student knowledge.
H. Wegele, L. M ller, and J. Buchner: Hsp70 and Hsp90 A Relay Team for Protein Folding R. Sch lein: The Early Stages of the Intracellular Transport of Membrane Proteins: Clinical and Pharmacological Implications L. Schild: The Epithelial Sodium Channel: From Molecule to Disease
TheobservationthatabloodclotspontaneouslydissolveswasfirstdescribedbyDenys in1889. Subsequently,thebloodclottingsystemwasshowntobeinvolvedintumor growth. Forexample,asearlyas1925,Fisherreportedthataviantissueexplantstrans- formedtomalignancybyvirusesgeneratedhighlevelsoffibrinolyticactivityundercon- ditionsinwhichculturesofnormalcellsdidnot. In1958,theconceptthatan equilibriumexistedbetweenthetendencyofbloodtoclotandtoremainfluidwaspro- posedbyAstrup. Atthattime,itwasbelievedthatthishemostaticbalancewasexplained bytheabilityofpolymerizingfibrintoorchestrateitsownclearancebystimulatingfib- rinolyticactivity. Sincethesepioneeringstudies,considerableinformationhasaccumu- latedthathasdefinedthecomponentsofthecoagulationandfibrinolyticsystemsand howtheyareinvolvedinphysiologicalandpathophysiologicalprocesses. Plasminogen: Structure, activation, and regulationfocusesonthebasicprinciplesandrecentdevelop- mentsintheplasminogen/plasminresearchfieldandhowtheseresultsprovideacon- ceptualframeworkforanunderstandingofthephysiologicalroleofplasminogenin healthanddisease. Theenzymaticcascadetriggeredbyactivationofplasminogenhasbeenimplicated inavarietyofnormalandpathologicaleventssuchasfibrinolysis,woundhealing,tis- sueremodeling,embryogenesis,angiogenesis,andtheinvasionandmetastasisoftumor cells. Thisimpressivelistofphysiologicalfunctionsforplasminogenreinforcesthewide diversityofrolesthatplasminogenplaysinvariousphysiologicalprocesses. Productive plasmingenerationrequirestheassemblyofbothplasminogenactivatorsandplasmino- genonasolidsupportsuchasthefibrinpolymerorthecellsurface. Theregulationof plasminproductioninvolvesacomplexinterplaybetweentheseplasminogenactivators, plasminogenactivatorinhibitors,andplasmininhibitors. Clearly,theexplosivegrowth inthisresearchfieldandthemanyexcitingdiscoveriessuggeststhattheresearchefforts inthenextdecadewillrevealthemechanismsbywhichthecomponentsoftheplas- minogensysteminteractandregulatebothplasminactivationandfunctionatacellular level. Plasminogen: Structure, activation, and regulationisdividedintotwosections. Thefirstsectiondealswiththestructureandregulationofplasminogen. Thechapters inthissectionrangefromdiscussionsofthestructureofplasminogenandtheregulation oftheplasminogengenetodiscussionsofthestructureandregulationofplasminogen activatorsandplasminogenactivatorinhibitors. Alsoexaminedistherelativelynewdata concerningthegenerationofanti-angiogenicmoleculesfromplasminogen. Thesecond sectiondealswiththephysiologicalandpathophysiologicalrolesofplasminogenaswell astheconsequencesofplasminogengeneknockout. Discussionsinthissectioninclude examinationoftheroleofplasminogeninhematopoieticmalignancies,tumorcell progression,angiogenesis,mammaryglandinvolution,woundhealing,andbone readsorption. xi xii Preface Inclosing,Iwouldliketothankmyadministrativeassistant,Ms. ViSommerfeld,for herinvaluableassistanceandtimelesseffortswiththeorganizationandeditingofthebook. Lastly,Iwouldliketoacknowledgetheeffortsoftheauthorsoftheindividualchapters, whoareauthorities inthisfield,foragreeingtotaketimefrombusyschedulestoprovide thesechaptersinatimelyfashion. DavidMortonWaisman Contents Part I. Plasminogen: Structure and Regulation 1. Human Plasminogen: Structure, Activation, and Function FrancisJ. Castellino and Victoria A. Ploplis 1. Introduction 3 2. StructureofHumanPlasminogen...3 2. 1. PrimaryProteinStructure...3 2. 2. GeneOrganization 5 3. ActivationofHumanPlasminogen...6 3. 1. ActivationbyPhysiologicalActivators 7 3. 1. 1. Urokinase-typePlasminogenActivator...7 3. 1. 2. Tissue-typePlasminogenActivator...8 3. 2. ActivationbyBacterial-derivedPlasminogenActivators...9 3. 2. 1. Streptokinase 9 3. 2. 2. Staphylokinase...9 4. TargetsforPlasminActivity...9 5. DysplasminogenemiasandPhenotypicManifestations 10 6. Conclusions 11 References...11 2. Plasminogen Activators: Structure and Function Vincent Ellis 1. Introduction ...19 2. SerineProteases...20 3. UrokinasePlasminogenActivator,uPA...21 3. 1. SerineProteaseDomain 22 3. 2. N-terminalDomains...24 3. 2. 1. KRModule 24 3. 2. 2. EGModule 24 4. MechanismsRegulatinguPAFunction...25 4. 1. ZymogenActivation...25 4. 2. ZymogenActivity...26 4. 3. ReciprocalZymogenActivation 27 4. 4. uPARStimulationofPlasminogenActivation...27 4. 4. 1. uPAandtheTemplateMechanism 28 4. 4. 2. PlasminogenandtheTemplateMechanism 29 4. 5. AvianuPA,aSpecialCase? 30 xiii xiv Contents 5. TissuePlasminogenActivator,tPA...30 5. 1. SerineProteaseDomain 31 5. 2. N-terminalDomains ,...33 5. 2. 1. KRModules ,. . ,. . ,...33 5. 2. 2. F1-EGSupermodule 33 6.
The eukaryotic translation machinery must recognize the site on a messenger RNA (mRNA) where decoding should begin and where it should end. The selection of the translation start site is generally given by the ?rst AUG codon encoding the amino acid methionine. D- ing initiation soluble translation initiation factors (eukaryotic translation initiation factors [eIFs] in eukaryotes and prokaryotic translation initiation factors [IFs] in prokaryotes) bind the mRNA, deliver the initiator Met-tRNA, and assemble to form a complete 80S ribosome from the 40S and 60S subunits. By progressing along the mRNA in the 5 -to-3 direction the ribosome decodes the information and translates it into the polypeptide chain. During this process, repeated delivery of amino-acyl tRNA (aa-tRNA) to the ribosome, peptide bond formation, movement of the mRNA, and the growing peptidyl-tRNA is mediated by both soluble elongation factors (eukaryotic translation elongation factors [eEFs] in euka- otes and prokaryotic translation elongation factors [EFs] in prokaryotes) and the activity of the ribosome. The ?nal step in the translation process occurs when one of the three t- mination codons occupies the ribosomal A-site. Translation comes to an end and soluble release factors (eukaryotic translation termination factors [eRFs] in eukaryotes and proka- otic translation termination factors [RFs] in prokaryotes) facilitate hydrolytical release of the polypeptide chain (for recent reviews, see Inge-Vechtomov et al. 2003; Kisselev et al. 2003; Wilson and Nierhaus 2003; Kapp and Lorsch 2004). |
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