Novartis Foundation Symposia
13 primary works • 14 total works
Book 222
Homology
by Novartis Foundation, Brian Hall, and Foundation Symposium Novartis
Published 30 March 1999
Homology is the condition of being homogolous, meaning deriving from the same evolutionary origins. For example, the forelimb of a quadruped, the human arm and the wing of a bird are said to be homogolous. This book deals with the central debates and controversies concerning both fundamental definitions and the nature of the criteria by which homology is judged. It includes contributions on the historical development of the concept of homology and its use in population studies, while other chapters deal with issues of homology in morphological and development studies, behavioural studies and studies at the molecular genetic level.
Book 223
Novartis Foundation Symposium 223 – Insect–plant Interactions and Induced Plant Defence
by Novartis Foundation
Published 24 September 1999
Insect-Plant Interactions and Induced Plant Defence Chair: John A. Pickett 1999 This book examines the sophisticated mechanisms that plants use to defend themselves against attack by insects and pathogens, focusing on the networks of plant signalling pathways that underlie these defences. In response to herbivory, plants release a complex blend of as many as 100 volatile chemicals, known as semiochemicals ('sign chemicals'). These act as an airborne SOS signal, revealing the presence of the herbivore to the predators and parasitoids that are its natural enemies. Plants also have endogenous defence mechanisms that can be induced in response to pathogens, and separate chapters deal with systemic acquired resistance, phytoalexins, and the interacting pathways in pathogen and pest resistance. The book discusses underlying biochemical mechanisms by which plant stress leads to the biosynthesis of chemical signals from pools of secondary metabolite precursors, or even from the primary metabolism source. Finally, consideration is given to the possibilities for exploiting these signalling pathways by plant molecular genetics.
The use of plant signals and their analogues to switch on defence pathways in crop plants is covered in depth. Bringing together contributions from entomologists, chemical ecologists, molecular biologists and plant physiologists this book is truly interdisciplinary, and will be essential reading for anyone with an interest in agricultural pest control.
The use of plant signals and their analogues to switch on defence pathways in crop plants is covered in depth. Bringing together contributions from entomologists, chemical ecologists, molecular biologists and plant physiologists this book is truly interdisciplinary, and will be essential reading for anyone with an interest in agricultural pest control.
Book 236
Rice Biotechnology
by Novartis Foundation, Foundation Symposium Novartis, Jamie Goode, and Derek Chadwick
Published 15 June 2001
Rice is the most important food crop for half the world's population. Over the last three decades, the imporvement in human nutrition and health in Asia has largely been attributable to a relatively stable and affordable rice supply. The challenge to produce enough rice for the future, however, remains daunting, as the current rate of population growth outpaces that of increases in rice production. Science has a central role to play in raising rice productivity and this book highlights areas of plant science that are particularly relevant to solving the major constraints on rice production. Examining molecular, genetic and cellular techniques, it considers recent advances in four research approaches for increasing yields and improving the nutritional quality of rice. Plant genomics: knowing the identity and location of each gene in the rice genome is of immense value in all aspects of rice science and cultivar improvement. Molecular biological approaches to increase yield: to produce more biomass by increasing photosynthetic rate and duration, and by improving grain filling.
Enhancing tolerance to biotic and abiotic stresses: with new DNA array technologies, it is now possible to assess global genomic response to stresses. Understanding the relationships among stress pathways may create new opportunities for gene manipulation to enhance tolerance to multiple biotic and abiotic stresses. Improving nutritional quality in the grain: knowledge of the biosynthesis of micronutrients in plants permits genetic engineering of metabolic pathways to enhance the availability of micronutrients.
Enhancing tolerance to biotic and abiotic stresses: with new DNA array technologies, it is now possible to assess global genomic response to stresses. Understanding the relationships among stress pathways may create new opportunities for gene manipulation to enhance tolerance to multiple biotic and abiotic stresses. Improving nutritional quality in the grain: knowledge of the biosynthesis of micronutrients in plants permits genetic engineering of metabolic pathways to enhance the availability of micronutrients.
Book 245
Ion channels provide a unique opportunity to use computational approaches to attempt an understanding of the function of a membrane protein, starting with an atomic resolution structure and progressing through a hierarchy of theoretical descriptions until one can account quantitatively for their physiological function. This book brings together physiologists, structural biologists and theorists who came together to help define the direction of the field in the immediate future. Topics covered include: the x-ray structure of channels and pores computer simulation of channel function detailed data on potassium channels, chloride and calcium channels, and ligand-gated ion channels
Book 246
Smooth muscle contraction is a vital component of the functioning of blood vessels, the uterus, airways and the bladder. Its malfunction can lead to serious pathological conditions, such as hypertension and pre-term labour. The calcium ion plays a central role in smooth muscle function, increasing in concentration for contraction and decreasing for relaxation. Calcium entry into the cell is facilitated by the sarcoplasmic reticulum (SR). This book explores the latest research on the role of the sarcoplasmic reticulum (SR) in smooth muscle function. It examines the control and modulation of the SR and how this may vary among smooth muscle types. Potential therapeutic implications are also discussed. * Discusses new and exciting work in this area and identifies promising new research directions.* Considers the advances in this relatively unexplored field, offering new insights into the role of the SR muscle.* Brings together contributions from key workers, both in basic and clinical science, whose studies range from physiological to pathological and molecular to whole animal.
Book 247
Novartis Foundation Symposium 247 – ′In Silico′ Simulation of Biological Processes
by Novartis Foundation
Published 7 October 2008
Over recent decades vast amounts of biological data have been accumulated. However, it is becoming increasingly difficult to apply traditional theoretical methods to the formulation of coherent pictures of cell and organ function because it is no longer possible for a human theorist to integrate all of the available information. Instead, computer technologies must now be used to perform this integration. This book brings together contributions from many different fields to summarize the current status of computer-assisted modelling of biological processes. The initial chapters deal with fundamental developments in hardware, software and mathematics that underlie current approaches to biological modelling. Next, different approaches to collating data on gene structure and function are presented. These databases form a vital resource for any investigator trying to construct an integrated picture of particular biological systems. Cell signalling systems form a particularly complicated aspect of all cellular function and are important both in the understanding of basic cellular processes and in selecting targets for drugs.
Recent approaches to integrating data on cell signalling into computer models are covered. Further chapters build on these approaches to show how computerized models of intact cells can be developed. Finally, approaches to the computer modelling of whole organs such as the heart are presented. The role of computer modelling in drug design is the subject of the final chapter and is also touched on throughout the discussions.
Recent approaches to integrating data on cell signalling into computer models are covered. Further chapters build on these approaches to show how computerized models of intact cells can be developed. Finally, approaches to the computer modelling of whole organs such as the heart are presented. The role of computer modelling in drug design is the subject of the final chapter and is also touched on throughout the discussions.
Book 260
Novartis Foundation Symposium 260 – Osteoarthritic Joint Pain
by Novartis Foundation
Published 7 October 2008
Osteoarthritis is a chronic degenerative disease associated with joint pain and loss of joint function. It has an estimated incidence of 4 out of every 100 people and significantly reduces the quality of life in affected individuals. The major symptoms are chronic pain, swelling and stiffness; severe, chronic joint pain is often the central factor that causes patients to seek medical attention. Within the affected joint, there is focal degradation and remodelling of articular cartilage, new bone formation (osteophytes) and mild synovitis. Several mechanisms are thought to contribute to osteoarthritic joint pain. These include mild synovial inflammation, bone oedema, ligament stretching, osteophyte formation and cartilage-derived mediators. Changes in joint biomechanics and muscle strength also influence the severity and duration of joint pain in osteoarthritis. Within the nervous system, the relative contributions of peripheral afferent nociceptive fibres and central mechanisms remain to be defined, and there is limited information on the phenotype of sensory neurons in the OA joint.
Importantly, there is no relation between clinical severity, as measured by radiographic changes, and the presence and severity of joint pain. Patients with severe joint pain may have normal joint architecture as determined by X-ray, whereas patients with considerable evidence of joint remodelling may not have significant joint pain. Treatments for osteoarthritic joint pain include non-steroidal anti-inflammatory compounds, exercise, corrective shoes and surgical intervention. There remains a critical need for improved control of joint pain in osteoarthritis. This book brings together contributions from key investigators in the area of osteoarthritic joint pain. It covers the clinical presentation of joint pain, the pathways involved in joint pain, osteoarthritis disease processes and pain, experimental models and pain control. The discussions provide insights into the nature of osteoarthritic joint pain, identify key studies needed to advance understanding of the problem, highlight possible intervention points and indicate future pathways towards a better treatment of osteoarthritic joint pain.
Importantly, there is no relation between clinical severity, as measured by radiographic changes, and the presence and severity of joint pain. Patients with severe joint pain may have normal joint architecture as determined by X-ray, whereas patients with considerable evidence of joint remodelling may not have significant joint pain. Treatments for osteoarthritic joint pain include non-steroidal anti-inflammatory compounds, exercise, corrective shoes and surgical intervention. There remains a critical need for improved control of joint pain in osteoarthritis. This book brings together contributions from key investigators in the area of osteoarthritic joint pain. It covers the clinical presentation of joint pain, the pathways involved in joint pain, osteoarthritis disease processes and pain, experimental models and pain control. The discussions provide insights into the nature of osteoarthritic joint pain, identify key studies needed to advance understanding of the problem, highlight possible intervention points and indicate future pathways towards a better treatment of osteoarthritic joint pain.
Book 261
Novartis Foundation Symposium 261 – Pathological Pain – From Molecular to Clinical Aspects
by Novartis Foundation
Published 7 October 2008
This book brings together contributions from key investigators in the area of pathological pain. It covers the molecular basis of receptors and channels involved in nociception, the possible messages that cause neuropathic plasticity, spinal plasticity in neuropathy, plastic changes in opioid systems in neuropathy and opioid tolerance, and plastic changes related to pathological pain.
Book 264
Novartis Foundation Symposium 264 – Nuclear Organization in Development and Disease
by Novartis Foundation
Published 7 October 2008
This book draws together contributions from cell and developmental biologists, structural biologists, geneticists and clinical scientists aimed at a better understanding of the cellular and molecular basis of these diseases. Topics include:* How nuclear structure and location within a nucleus affect gene expression* Chromatin organization and cell differentiation* The nature of the interactions between the nuclear envelope and the cytoskeleton* The extent to which the cytoskeleton mediates communication between the cell membrane and nucleus in regulating gene expression and whether disruption of such communication might underlie the disease processes It is hoped that a better understanding of the mechanisms leading to disease pathogenesis may ultimately lead to more rational and appropriate treatments.
Book 270
Novartis Foundation Symposium 270 – Percept, Decision, Action – Bridging the Gaps
by Novartis Foundation
Published 7 October 2008
Seemingly simple behaviours turn out, on reflection, to be discouragingly complex. For many years, cognitive operations such as sensation, perception, comparing percepts to stored models (short-term and long-term memory), decision-making and planning of actions were treated by most neuroscientists as separate areas of research. This was not because the neuroscience community believed these operations to act independently-it is intuitive that any common cognitive process seamlessly interweaves these operations-but because too little was known about the individual processes constituting the full behaviour, and experimental paradigms and data collection methods were not sufficiently well developed to put the processes in sequence in any controlled manner. These limitations are now being overcome in the leading cognitive neuroscience laboratories, and this book is a timely summary of the current state of the art. The theme of the book is how the brain uses sensory information to develop and decide upon the appropriate action, and how the brain determines the appropriate action to optimize the collection of new sensory information. It addresses several key questions.
How are percepts built up in the cortex and how are judgments of the percept made? In what way does information flow within and between cortical regions, and what is accomplished by successive (and reverberating) stages of processing? How are decisions made about the percept subsequently acted upon, through their conversion to a response according to the learned criterion for action? How does the predicted or expected sensation interact with the actual incoming flow of sensory signals? The chapters and discussions in the book reveal how answering these questions requires an understanding of sensory-motor loops: our perception of the world drives new actions, and the actions undertaken at any moment lead to a new 'view' of the world. This book is a fascinating read for all clinical and experimental psychologists and neuroscientists, as well as anyone interested in how we perceive the world and act within it.
How are percepts built up in the cortex and how are judgments of the percept made? In what way does information flow within and between cortical regions, and what is accomplished by successive (and reverberating) stages of processing? How are decisions made about the percept subsequently acted upon, through their conversion to a response according to the learned criterion for action? How does the predicted or expected sensation interact with the actual incoming flow of sensory signals? The chapters and discussions in the book reveal how answering these questions requires an understanding of sensory-motor loops: our perception of the world drives new actions, and the actions undertaken at any moment lead to a new 'view' of the world. This book is a fascinating read for all clinical and experimental psychologists and neuroscientists, as well as anyone interested in how we perceive the world and act within it.
Book 272
Novartis Foundation Symposium 272 – Signalling Pathways in Acute Oxygen Sensing
by Novartis Foundation
Published 7 October 2008
Oxygen sensing is a key physiological function of many tissues, but the identity of the sensor, the signalling pathways linking the sensor to the effector, and the endpoint effector mechanisms are all subjects of controversy. This book evaluates the various mediators that have been proposed, including the mitochondria, NAD(P)H oxidases, cytochrome p450 enzymes, and direct effects on enzymes and ion channels. There has been a resurgence of interest in the role of mitochondria, based partly on the ability of mitochondrial inhibitors to mimic hypoxia, but there is little consensus concerning mechanisms. Some favour the view that the primary signalling event is a reduction in cell redox state and reactive oxygen species (ROS) due to general inhibition of the electron transport chain (ETC); others support a key role for complex III of the ETC and an increase in ROS generation, while others doubt either of these components is the key intermediary. All these hypotheses are discussed in the book, together with conceptual problems concerning the ability of mitochondria to respond to physiological hypoxia.
The other area of controversy covered in the book is the identity of the endpoint effector(s). Some authors favour K+ channel inhibition, followed by depolarization and Ca2+ entry via L-type channels, while others propose that release of Ca2+ from intracellular stores, or capacitative Ca2+ entry and other voltage-independent pathways may be more important. The book also describes evidence for an endothelium-dependent Ca2+-sensitizing pathway involving Rho and possibly other kinases. While some of these differences can be attributed to variation between tissues, many must be related to differences in interpretation or methodology. In this book, experts in the field of acute oxygen sensing working in different tissues address these controversies and their possible origins, and discuss possible approaches whereby these controversies might be resolved. The book will be of great interest to all those working in fields where oxygen sensing is important, particularly cancer and wound healing, as well as researchers in drug discovery and biotechnology.
The other area of controversy covered in the book is the identity of the endpoint effector(s). Some authors favour K+ channel inhibition, followed by depolarization and Ca2+ entry via L-type channels, while others propose that release of Ca2+ from intracellular stores, or capacitative Ca2+ entry and other voltage-independent pathways may be more important. The book also describes evidence for an endothelium-dependent Ca2+-sensitizing pathway involving Rho and possibly other kinases. While some of these differences can be attributed to variation between tissues, many must be related to differences in interpretation or methodology. In this book, experts in the field of acute oxygen sensing working in different tissues address these controversies and their possible origins, and discuss possible approaches whereby these controversies might be resolved. The book will be of great interest to all those working in fields where oxygen sensing is important, particularly cancer and wound healing, as well as researchers in drug discovery and biotechnology.
Book 278
Novartis Foundation Symposium 278 – Empathy and Fairness
by Novartis Foundation
Published 1 January 2007
Empathy is the process that allows us to share the feelings and emotions of others, in the absence of any direct emotional stimulation to the self. Humans can feel empathy for other people in a wide array of contexts: for basic emotions and sensation such as anger, fear, sadness, joy, pain and lust as well as for more complex emotions such as guilt, embarrassment and love. It has been proposed that, for most people, empathy is the process that prevents us doing harm to others. Although empathy seems to be an automatic response of the brain to others' emotional reactions, there are circumstances under which we do not share the same feeling as others. Imagine, for example, that someone who does the same job as you is paid twice as much. In this case, that person might be very satisfied with their extra salary, but you would not share this satisfaction. This case illustrates the ubiquitous feeling of fairness and justice. Our sense of fairness has also become the focus of modern economic theories.
In contrast to the prominent self-interest hypothesis of classic economy assuming that all people are exclusively motivated by their self-interest, humans are also strongly motivated by other-regarding preferences such as the concern for fairness and reciprocity. The notion of fairness is not only crucial in personal interaction with others in the context of families, workplace or interactions with strangers, but also guides people's behaviour in impersonal economic and political domains. This book brings together work from a wide range of disciplines to explain processes underlying empathy and fairness. The expert contributors approach the topic of empathy and fairness from different viewpoints, namely those of social cognitive neuroscience, developmental psychology, evolutionary anthropology, economics and neuropathology. The result is an interdisciplinary and unitary framework focused on the neuronal, developmental, evolutionary and psychological basis of empathy and fairness. With its extensive discussions and the high calibre of the participants, this important new book is essential reading for anyone with an interest in this topic.
In contrast to the prominent self-interest hypothesis of classic economy assuming that all people are exclusively motivated by their self-interest, humans are also strongly motivated by other-regarding preferences such as the concern for fairness and reciprocity. The notion of fairness is not only crucial in personal interaction with others in the context of families, workplace or interactions with strangers, but also guides people's behaviour in impersonal economic and political domains. This book brings together work from a wide range of disciplines to explain processes underlying empathy and fairness. The expert contributors approach the topic of empathy and fairness from different viewpoints, namely those of social cognitive neuroscience, developmental psychology, evolutionary anthropology, economics and neuropathology. The result is an interdisciplinary and unitary framework focused on the neuronal, developmental, evolutionary and psychological basis of empathy and fairness. With its extensive discussions and the high calibre of the participants, this important new book is essential reading for anyone with an interest in this topic.
Book 284
Novartis Foundation Symposium 284 – Tinkering: The Microevolution of Development
by Novartis Foundation
Published 11 June 2007
Much recent research in evolutionary developmental biology has focused on the origin of new body plans. However, most evolutionary change at the population and species level consists of tinkering: small-scale alterations in developmental pathways within a single body plan. Such microevolutionary events have been well studied on a population genetic level and from the perspective of adaptive phenotypic evolution, but their developmental mechanisms remain poorly studied. This book explores both theoretical and practical issues of tinkering. It features a wide range of perspectives to address several fundamental questions. How does tinkering occur developmentally, and how is it manifested phenotypically? Are the developmental mechanisms by which tinkering occur different from those that underlie larger evolutionary changes? What are the developmental constraints on tinkering? And how do we test hypotheses about microevolutionary shifts in development from the fossil record? With contributions from experts in a range of fields, this fascinating book makes exciting reading for anyone studying evolution, developmental biology or genetics.
Rhodopsins and Phototransduction
by Novartis Foundation, Publishing Wiley, and Foundation Novartis
Published 19 November 1999
Brings together key new results of interdisciplinary collaborations among various research fields on rhodopsin including the photoreceptive mechanism of rhodopsins, the molecular mechanism of the visual transduction process, visual processes in the retina and other transduction processes in the retina and brain. The structures of the rhodopsin molecule are studied in the fields of protein chemistry, molecular biology, organic chemistry and structural biology; the ultra fast reactions of the retinal protein are studied in physics, biophysics, physical chemistry, organic chemistry and photobiology; the phototransduction in retinal proteins and visual cells are studied in biophysics, biochemistry, biophysical chemistry and photobiology; and the localization in the tissues is studied in anatomy and histochemistry. The diversity of visual systems in various animals is studied in zoology and comparative biochemistry.