Dirk Haller und Gabriele Hörmannsperger geben einen Überblick über die zentrale Rolle des Darms und seiner Bewohner für die Gesundheit und vermitteln zusätzlich einen ersten Eindruck von den komplexen und dynamischen Interaktionen zwischen D+armbakterien und Wirt. Denn Forschungsergebnisse der letzten Jahre weisen darauf hin, dass die lange unbeachteten Darmbakterien (intestinale Mikrobiota) eine unerwartet zentrale Rolle für die Aufrechterhaltung der Gesundheit einnehmen. Die Forschung beschäftigt sich aktuell intensiv damit, die Grundlagen für ein funktionierendes und gesundheitsförderndes mikrobielles Ökosystem zu identifizieren. Dieses Wissen kann zukünftig für die Entwicklung gezielter Maßnahmen zur Prävention und Therapie Mikrobiota-assoziierter Erkrankungen eingesetzt werden.

The first insights into the site and mechanisms of RNA process- ing to functional mRNA in eukaryotic cells came from the group of Georgiev (Lukanidin et al. 1972) who demonstrated the association of rapidly labelled, heterogeneous nuclear RNA (hnRNA) with a limited number of specific proteins in the cell nucleus. These "informofers", i. e. packaged precursors of mRNA (pre-mRNA or hnRNA), are in a form presumably amenable to the action of nucleases. With the availability of better analytical techniques, the considerable heterogeneity of hnRNA associated proteins was revealed (Niessing and Sekeris 1970), suggesting a role that was more composite, rather than solely structural, for these proteins. Later studies investigated the RNA binding behavior of these proteins (Schenkel et al. 1988, 1989; Wilk et al. 1983). For a long time, the small nuclear RNAs, well characterized with respect to primary structure (reviewed by Reddy and Busch 1983), were naively ignored regarding their function. Several events then set the stage for a detailed study of the intricate mechanisms of the splicing process and other steps involved in hnRNA processing: (1) The demonstration of a second class of nuclear ribonucleoproteins (RNPs), composed of small nuclear RNAs (snRNAs) and another characteristic group ofheterogene- ous proteins (Lerner et al. 1980; Guialis et al. 1983); (2) the detec- tion of the association of snRNPs with hnRNPs by virtue of base pairing between hnRNA and snRNA (Flytzanis et al.

Marks' Essentials of Medical Biochemistry takes a patient-oriented approach that links biochemistry to physiology and pathophysiology, allowing students to apply fundamental concepts to the practice of medicine. Based on the established text, Marks' Basic Medical Biochemistry, Marks' Essentials is streamlined to focus only on the most essential biochemical concepts, while maintaining intuitively organized chapters centered on hypothetical patient vignettes and helpful icons for smooth navigation. Full-color illustrations of chemical structures and biochemical pathways elucidate core concepts and enhance understanding of the text Hypothetical patient vignettes ensure clinical relevance and help connect biochemistry to human health and disease Helpful icons guide you through each chapter and identify key concepts such as signs and symptoms, clinical pearls, treatment options and outcomes, and more Chapter Outlines and Key Points allow readers to preview and review chapter content End-of-Chapter Review Questions and Summary Disease Tables highlight the take-home messages and reinforce knowledge

Shows cranial nerves and vessles in the base of brain. Also provides lateral and sagittal section views of the arteries of the brain. Illustrates lobes, limbic system, ventricles of the brain, coronal section, Circle of Willis, circulation of cerebrospinal fluid (CSF), somatotopic organization of the cerebrum and meninges of the brain. Size is 20" W by 26" H.

We live in an unprecedented era of flourishing of scientific publishing. However, many professionals in the biomedical sciences find writing articles to be a daunting task. The book is meant to serve as a practical writing guide that covers the writing process from the project's inception until online distribution of the published article.The book covers the framework for constructing a scientific study into a coherent narrative that can later be easily translated into a written manuscript. The content of each article section in accordance with the IMRAD format is covered and many details for the construction of additional submission materials are provided. Characteristics of papers reporting on specific types of research are presented as well as article types other than the general full research article. The book is full of resources for additional reading and learning.There are many writing guides on the market. Most of them are general, cover a wide range of scientific writing, and are mainly aimed at students. This book is best suited for young professionals who are a few years out of school. They no longer enjoy the benefit of close mentoring by a thesis adviser or equivalent, but still lack the experience to lead writing projects on their own. Through her experience of teaching young professionals and editing their work, Dr Diskin has learned their unique set of needs and the book has been written in an attempt to address them. Dr Diskin addresses the reader in the second person, with an ever-supportive tone. Importantly, the practicalities of writing articles in today's interconnected environment are discussed throughout the book. Topics such as coordinating the writing in a multinational team, use of different types of software in the writing process and resources available online to support the writer are addressed in detail.Related Link(s)

Dieses Buch bietet strukturierte und aktuellste Informationen zu allen Routineanwendungen der Mehrschicht- (Multidetektor-) Computertomographie, auch der neuesten Gerategeneration (Dual-Slice bzw. Dual-Layer).

Es enthalt ausfuhrliche Kapitel zum technischen Hintergrund und behandelt systematisch alle wichtigen Organsysteme: Herz, Kopf und Hals, Thorax und Abdomen mit parenchymalen Organen und Gastrointestinaltrakt.

Jedes Protokoll wird tabellarisch prasentiert; dies ermoglicht dem Benutzer einen schnellen Uberblick uber die gewunschten Anwendungen und die notwendigen Einstellungen des CT-Gerats.

Alle Beitrage sind verfasst von anerkannten Experten auf dem Gebiet der CT, die nicht nur ihre reiche klinische Erfahrung in jedem Anwendungsgebiet einbringen, sondern auch Anleitungen fur Indikationen, Arbeitsablauf, Nachbearbeitung und Rekonstruktionsalgorithmen erarbeitet haben."

Ein halbes Jahrzehnt nach der ersten Auflage erscheint das Buch nun komplett neu bearbeitet und aktualisiert in doppeltem Umfang. Die Neugestaltung wurde vom Polymerfaser-Anwendungszentrum der FH Nurnberg geleitet, wobei viele eigene Messungen zur Bandbreite, zu den optischen Eigenschaften und zu moglichen Ubertragungskapazitaten an mehr als einem Dutzend optischer Dickkernfasern wiedergegeben werden.

Noch vor wenigen Jahren war die POF eine Nischentechnologie. Inzwischen fahren viele Millionen PKW mit POF-Bordnetzen. Mit dem rasanten Anstieg der privaten Breitbandanschlusse und dem gleichzeitigen Anwachsen der Bitraten, vor allem durch IP-TV getrieben, wird die POF auch mehr und mehr in Gebaudenetzen eingesetzt. Das Handbuch zeigt vorhandene kommerzielle Losungen ebenso wie das Potenzial fur zukunftige Anwendungen. Optische Wellenleiter, Polymerfasern als preiswerte Sensoren und vielfach parallele Datenverbindungen sind weitere Anwendungsfelder, die beschrieben werden. Uber 1000 Abbildungen, 600 Literaturstellen und zahlreiche Tabellen vervollstandigen den Text."

Le recenti evoluzioni tecnologiche nella diagnostica per immagini hanno consentito gli cogliere le alterazioni anatomiche e funzionali che caratterizzano la fase di esordio delle artropatie degenerative ed infiammatorie. Nell'ambito di queste ultime, in particolare, l'imaging risulta non solo fondamentale nella diagnosi dello stadio early delle artriti ma anche nella definizione della loro evoluzione e della risposta al moderno trattamento terapeutico. La valutazione di una nuova semeiologia imaging, che si avvale notevolmente dell'impiego di mdc in relazione sia al power Doppler sia alla risonanza magnetica, ha consentito di restringere il gap tra istologia ed imaging nella diagnostica reumatologica.

Technische Dokumentation ist die Aufbereitung und Publikation technischer Sachverhalte und Abl ufe. Dabei spielen die Strukturierung der Information, die pr gnante Formulierung von Texten, die visuelle Aufbereitung und die Wahl des Mediums eine wesentliche Rolle. Die Ber cksichtigung von Gesetzen, Normen und Richtlinien kann dazu beitragen, Hersteller vor Schadensersatzforderungen zu sch tzen. Das Buch vermittelt grundlegendes Wissen f r die externe Technische Dokumentation von Maschinen, Anlagen und anderen technischen Produkten.

Hands-on experts describe in step-by-step detail the key methodologies of contemporary peptide synthesis and illustrate their numerous applications. The techniques presented include protocols for chemical ligation, the synthesis of cyclic and phosphotyrosine-containing peptides, lipoamino acid- and sugar-conjugated peptides, and peptide purification and analyses. Additional chapters detail methodologies and instrumentation for high-throughput peptide synthesis, many different applications of peptides as novel research tools and biological probes, and the design and application of fluorescent substrate-based peptides that can be used to determine the selectivity and activity of peptidases. A practical guide to the identification of proteins using mass spectrometric analyses of peptide mixtures is also included.

Vitamin C, or ascorbic acid, has a long and multifaceted scientific history. In 1937, the Nobel Prize for Physiology and Medicine was awarded to Albert Szent-Gyorgyi'in recognition of his discoveries concerning the biological oxida tion processes with special reference to vitamin C', and the Nobel Prize for Chemistry was shared by Sir Norman W. Haworth, who was the first to synthesize the vitamin. Vitamin C is a potent antioxidant, and this action represented the theoretical basis for various lines of investigation on this molecule in which the potential role of ascorbic acid in the prevention and treatment of a series of dis eases, whose pathogenesis is linked to an excess of free radicals such as athero sclerosis and cancer, have been examined. These data have been analyzed in detail by experts in biochemistry, epidemi ology, and preventive and clinical medicine in the International Symposium Vitamin C, the state of the art in disease prevention sixty years after the Nobel Prize, held in Monte Carlo from October 31 to November 1, 1997, under the aus pices and the scientific endorsement of the Nutrition Foundation of Italy and with the financial support of Bracco SpA and Merck."

Scientists now understand that cancer is a genetic disease and cutting -edge molecular therapies are making their way from the laboratory into clinical practice. Introduction to Oncogenes and Molecular Cancer Medicine provides the physician with a solid understanding of molecular biology and its applications for the diagnosis and treatment of cancer. The book reviews the basic molecular principles and the basic principles of cancer medicine, including controls of cell growth and senescence, carcinogenesis, tumorogenesis, and epidemiology. The second part of the book gives clinical examples to demonstrate the basic science principles, including chapters on leukemia, colon cancer, and breast cancer. A chapter on molecular diagnostics and screening plus a chapter on new molecular anti-cancer therapies give the reader a look at current cutting-edge therapies as well as as the future of molecular cancer medicine. A useful glossary defines new terminology at-a-glance. Introduction to Oncogenes and Molecular Cancer Medicine is for all physicians seeking a better understanding of the modern molecular principles of cancer medicine. Written in a user-friendly, conversational format, this text will be welcomed by all physicians eager to sharpen their own understanding of molecular cancer medicine as well as to help them provide patients with balanced information on the advances and limitations of current treatment options.

The polymerase chain reaction (PCR) is one of the most important molecular biological methods ever devised, with numerous applications to cli- cal molecular medicine. Since its description in 1985, PCR has undergone tremendous improvements, and many variations on the basic PCR theme have been published. With such a large volume of PCR-related literature, a clinical scientist wishing to use the technique will have a difficult task loc- ing the relevant information to implement it effectively. There is thus clearly a need for an up-to-date volume with detailed protocols to facilitate the setting up of those techniques most relevant to clinical applications. Unlike some other books on this topic, Clinical Applications of PCR includes only methods that are of direct relevance in clinical settings. The book is organized in three parts: an introductory section, a section on general methodology, and a final section with specific clinical applications. The first section covers the basic principles of PCR and is most useful to those new to molecular diagnosis. The next chapter includes useful tips for setting up a PCR laboratory. Section 2 then outlines some of the most commonly used PCR-based techniques in molecular diagnosis. Section 3 includes carefully chosen examples that represent typical applications of PCR in diverse clinical fields, encompassing hematology, oncology, genetics, and microbiology.

Rontgenthoraxaufnahmen richtig interpretieren

Thoraxaufnahmen, die auf der Intensivstation aufgenommen werden, unterscheiden sich in der Aufnahmetechnik und in den veranderten physiologischen und anatomischen Verhaltnissen von Standard-Thoraxaufnahmen, die am Rasterwandstativ angefertigt werden. Die Interpretation dieser Bilder bereitet selbst erfahrenen Radiologen und Intensivmedizinern haufig Schwierigkeiten.

Der Weg zur korrekten Interpretation: - Rontgen- und Aufnahmetechnik - Strahlenschutz und -belastung - Klinische Problematik und Interpretation von Thoraxaufnahmen auf der Intensivstation.

Neu in der 2. Auflage:

Bildmaterial moderner Aufnahmeverfahren

Indikationsstellung fur CT-Aufnahmen

Vergleich von Projektionsradiographie und Schnittbildradiographie und mogliche Pitfalls

Ein Praxisbuch von Radiologen, Intensivmedizinern und Medizinphysikern zum Lernen und Nachschlagen. Ein Muss fur jeden auf der Intensivstation tatigen Arzt "

This book constitutes the refereed proceedings of the 4th International Conference on Visualization in Biomedical Computing, VBC '96, held in Hamburg, Germany, in September 1996.
The 73 revised full papers presented were selected from a total of 232 submissions. The book reports the state of the art in the field of computer based visualization in medicine and biology. The papers are organized in sections on visualization; image processing; segmentation; registration; brain: description of shape; brain: characterization of pathology; brain: visualization of function; simulation of surgery and endoscopy; image guided surgery and endoscopy.

In recent years, unprecedented advances in many aspects of the molecular biology of nucleic acids have been witnessed. The area of RNA chemistry has undergone a kind of explosion, with a huge interest in RNA-mediated catalysis. At the same time, our structural understanding of DNA-protein interactions has increased enormously, and the related area of RNA-protein interactions is beginning to gather pace. This softcover edition from the successful series Nucleic Acids and Molecular Biology is devoted to the structure and mechanism of ribozymes, and their potential exploitation. The subject has both important evolutionary implications and potential practical application in the development of therapeutic agents for diseases such as AIDS.

Biochemistry Behind the Symptoms takes a problem-based approach to understanding and applying biochemistry for superior clinical outcomes. Organized around the common symptoms encountered by clinicians, this engaging text clarifies the connections between foundational science and clinical manifestations to help users form confident diagnoses throughout their clerkship and beyond. Each chapter explores the biochemical concepts behind underlying causes and demonstrates their ties to presenting symptoms through 5 realistic patient cases. Accompanying questions encourage discussion and guide users in building accurate differential diagnoses. Ideal for peer-to-peer learning environments or independent study, this practical approach strengthens users' application of fundamental knowledge and ensures the long-term retention essential to clinical success. 50 Patient Cases emphasize the biochemical concepts behind common patient symptoms through problem-based learning. Clinical Impression sections encourage critical thinking and train students step by step in building effective differential diagnoses. Basic Science Correlations in each Patient Case clarify the biochemical concepts underlying diagnosis with an engaging question-and-answer format. High-Yield Concepts summarized after each Patient Case reinforce students' comprehension of essential chapter concepts. Digital Animations immerse students in biochemical processes to enrich their understanding and diagnostic confidence.

This volume is a compendium of the lectures, presentations, and workshops of the International Congress entitled "Facing the Pancreatic Dilemma" and of the 17th Meeting of the Italian Association for the Study of the Pancreas, held in Verona on 16 -19 June 1993. Pancreatology is still a relatively young science. Many pathophysiological aspects of pancreatic disease are as yet obscure, and a fair number of the etio pathogenetic mechanisms adduced are no more than hypothetical. We have therefore chosen to compare and contrast in a single volume the various hypo theses and interpretations put forward by leading experts in the field. In view of the swift evolution of this branch of medical science, it is sound policy to bear in mind that yesterday's heresies have become today's orthodoxy, and that todays's heresies may well turn out to be accepted orthodoxy in a not too distant future. The various "pancreatic dilemmas" are addressed systematically in these pages, and we believe that the book will prove an invaluable tool for the special ist and for any physician dealing with pancreatic disease. The book also represents a tribute by the Verona School of Pancreatology to the memory of Prof. L. A. Scuro, founder of the School and one of the outstanding Italian pioneers of pancreatology."

Bereits in der 5. Auflage erfolgreich! Sowohl Grundlagen der Tauchmedizin als auch Ergebnisse der experimentellen tauchmedizinischen Forschung werden behandelt. Die Probleme des Tieftauchens mit Gasgemischen, des Sporttauchens mit Luft im konventionellen Bereich und der stundenlangen UEberexposition der Caissonarbeiter in Tunneln werden abgehandelt. Seit 1985 wird bei Gasembolie, Dekompressionskrankheit des Gehirns/Ruckenmarks und Innenohrschaden die Behandlung mit hyperbarem Sauerstoff (HBO) angewandt; die Ergebnisse werden mit aussagekraftigen Zahlen belegt. Das Rechenmodell ZH-L8 ADT, bei Tauchcomputern der jungsten Generation in Anwendung, wird beschrieben. Ein aussagefahiger UEberblick uber praktische Tauchmedizin, experimentelle Forschung und Aufbau und Funktion von Dekompressionscomputern!

In this volume a distinguished group of internationally renowned clinicians and basic researchers discuss the present state of knowledge of the etiologyand pathogenesis of Dupuytren's contracture, a disease responsible for a considerable portion of disabilities within the working population allover the world. Although the riddle of how the contracture of the palmar fascia develops is still unsolved, the data on the pathobiochemistry and clinic of Dupuytren's Disease achieved in recent years has led to a better understanding of the biochemical and morphological processes underlying the deformation and malfunction of the afflicted tissues. Research in Dupuytren's Disease now enters the era of molecular medicine, which opens up new experimental means of studying the pathological changes which occur during the formation of the contracture on a molecular level. In particular, data are presented as to the role of specific biological macromolecules influencing the phenotype expression of the palmar fascia cells which are involved in autoimmune reactions and present both at the cell surface as well as in the extracellular matrix to regulate cell-to-cell and cell-to-matrix interactions. In vitro cell culture models to investigate fibro-cytic modulations are available and havebeen applied to study the effects of specific biological molecules on isolated cells from healthy palmar fascia and Dupuytren's contracture. Complementary evaluations of morphological, epidemiological, and clinical data contribute essentially to the present understanding of the etiology and pathogenesis of Dupuytren's Disease. This comprehensive and informative summary of the state of the art is completed by numerous references affixed to the individual contributions.

"Fractals in Biology and Medicine" explores the potential of fractal geometry for describing and understanding biological organisms, their development and growth as well as their structural design and functional properties. It extends these notions to assess changes associated with disease in the hope to contribute to the understanding of pathogenetic processes in medicine. The book is the first comprehensive presentation of the importance of the new concept of fractal geometry for biological and medical sciences. It collates in a logical sequence extended papers based on invited lectures and free communications presented at a symposium in Ascona, Switzerland, attended by leading scientists in this field, among them the originator of fractal geometry, Benoit Mandelbrot. "Fractals in Biology and Medicine" begins by asking how the theoretical construct of fractal geometry can be applied to biomedical sciences and then addresses the role of fractals in the design and morphogenesis of biological organisms as well as in molecular and cell biology. The consideration of fractal structure in understanding metabolic functions and pathological changes is a particularly promising avenue for future research.

Diagnose und Therapie von Herz-Kreislauf-Erkrankungen erfordern eine immer engere Zusammenarbeit von Arzten, Naturwissenschaftlern und Ingenieuren. Das vorliegende Lehrbuch wagt daher den Versuch eines Bruckenschlages zwischen den Disziplinen. Im ersten Drittel werden die medizinischen Grundlagen der wichtigsten Herz-Kreislauffunktion und -erkrankungen vermittelt. Auf dieser Basis wird der Aufbau und die Funktionsweise der bekannten Diagnose- und Therapieverfahren aus dem Bereich der Kardiologie erlautert. Dies umfasst sowohl den aktuellen Stand der Technik als auch die neuesten Trends.Das Buch richtet sich somit an Studierende, Lernende und Praktizierende in medizinischen, natur- und ingenieurwissenschaftlichen Berufen. Ziel des Buches ist es, ein gegenseitiges Verstandnis zu wecken, um neue Techniken sinnvoll entwickeln und sicher anwenden zu konnen."

Instrumentation is central to the study of physiology and genetics in living organisms, especially at the molecular level. Numerous techniques have been developed to address this in various biological disciplines, creating a need to understand the physical principles involved in the operation of research instruments and the parameters required in using them. Introduction to Instrumentation in Life Sciences fills this need by addressing different aspects of tools that hold the keys to cutting-edge research and innovative applications, from basic techniques to advanced instrumentation. The text describes all topics so even beginners can easily understand the theoretical and practical aspects.Comprehensive chapters encompass well-defined methodology that describes the instruments and their corresponding applications in different scientific fields. The book covers optical and electron microscopy; micrometry, especially in microbial taxonomy; pH meters and oxygen electrodes; chromatography for separation and purification of products from complex mixtures; spectroscopic and spectrophotometric techniques to determine structure and function of biomolecules; preparative and analytical centrifugation; electrophoretic techniques; x-ray microanalysis including crystallography; applications of radioactivity, including autoradiography and radioimmunoassays; and fermentation technology and subsequent separation of products of interest.The book is designed to serve a wide range of students and researchers in diversified fields of life sciences: pharmacy, biotechnology, microbiology, biochemistry, and environmental sciences. It introduces different aspects of basic experimental methods and instrumentation. The book is unique in its broad subject coverage, incorporating fundamental techniques as well as applications of modern molecular and proteomic tools that are the basis for state-of-the-art research. The text emphasizes techniques encountered b

Nel corso della (TM)accrescimento la (TM)apparato muscolo-scheletrico va incontro a profonde e continue modificazioni che riguardano non soltanto la forma, la struttura e le dimensioni dei singoli costituenti, ma anche la capacitA di resistenza allo stress e la forza muscolare espressa, le influenze ormonali e metaboliche.

Le caratteristiche anatomiche e funzionali che rendono lo scheletro pediatrico diverso da quello della (TM)adulto condizionano anche la differente modalitA di realizzarsi del danno traumatico, alla quale contribuisce anche il diverso stile di vita e le differenti occasioni di trauma, dalla frattura da parto alla "sindrome del bambino battuto."

Le fratture incomplete, le fratture osteo-cartilaginee, i distacchi apofisari e le osteocondriti sono alcune delle specificitA del trauma osteo-articolare in etA pediatrica, cosA� come la (TM)elevata velocitA di consolidazione e la (TM)elevata attivitA di rimodellamento ne caratterizzano la distinzione rispetto ai corrispettivi quadri patologici nella (TM)adulto.

In questo volume vengono rappresentate le caratteristiche anatomiche peculiari della (TM)apparato muscolo-scheletrico in etA evolutiva, le lesioni traumatiche acute e croniche tipiche della (TM)etA e le modalitA di imaging di volta in volta piA idonee per la loro diagnosi e il loro follow-up.

This second edition of Protein Purification provides a guide to the major chromatographic techniques, including non-affinity absorption techniques, affinity procedures, non-absorption techniques and methods for monitoring protein purity. The new edition of the book has been organized to encourage incremental learning about the topic, starting with the properties of water, progressing through the characteristics of amino acids and proteins which relate to the purification process. There is an overview of protein strategy and equipment, followed by discussions and examples of each technique and their applications. The basic theory and simple explanations given in Protein Purification make it an ideal handbook for final year undergraduates, and postgraduates, who are conducting research projects. It will also be a useful guide to more experienced researchers who need a good overview of the techniques and products used in protein purification. Key Features * Guide to the major techniques used in protein purification * Includes flowcharts to help the reader slect the best purification strategy * Contains step-by-step protocols that guide the reader through each technique and its use * Includes exercises and solutions