Peter J. Quinn

Krzysztof M. Górski

The book is the first thorough overview of the first important steps to develop a worldwide virtual observatory so that, in the future, it could be easier to "dial-up" a part of the sky than wait many months to access a telescope. The articles in this book present details on the status of the first efforts to develop a standardized framework for the virtual observatory, including steps towards completion and deployment of technical infrastructure, uptake by data providers worldwide, and utilization by the scientific community.

Proceedings of the ESO/ESA/NASA/NSF Conference Held at Garching, Germany, 10–14 June 2002

Toward an International Virtual Observatory

Valerian E. Kagan

The last few years have witnessed an explosion of both interest and knowledge about apoptosis, the process by which a cell actively commits suicide. It is now well recognised that apoptosis is essential in many aspects of normal development and is required for maintaining tissue homeostasis. The molecular mechanisms of apoptosis are presently unknown and the subject of focused research effort. It is clear that cell membrane structure and properties play an early part in the induction process. There is increasing evidence that the arrangement of polar lipids in the membrane lipid matrix is an important factor coupled with the homeostatic mechanisms responsible for preserving membrane lipid composition and asymmetry. Changes in membrane permeability are also likely to be involved, possibly as a direct consequence of disturbances in the lipid bilayer matrix. The purpose of this volume is to examine the involvement of membrane lipids in early events of apoptosis. In particular, the role of phospholipids in mitochondrial permeability, membrane lipid asymmetry, and sphingolipid and phospholipid signalling processes in early apoptotic events are reviewed by current researchers in these fields.

Phospholipid Metabolism in Apoptosis

John L. Harwood

The 9th International Symposium on Plant Lipid Biochemistry was held at Wye College, Kent, in July 1990. Not only has the scale and scope of the topic expanded since the first biannual meeting in 1974, but there have been giant strides, particularly in the last few years, in our knowledge of the detailed structure and function of plant lipids. Industry has never been slow to recognize the commercial importance of plant lipids and has invested heavily in the new technologies described in this book. Virtually all the laboratories that have contributed to these developments were represented at the meeting, and this volume is a compendium of their individual contributions.

The Proceedings of the Ninth International Symposium on Plant Lipids, Held at Wye College, Kent, July 1990

Plant Lipid Biochemistry, Structure and Utilization

The subject for a volume on the fat-soluble vitamins needs no justification considering the importance of this group of nutrients and the rate of expan sion of our knowledge of its role in cell biology, genetics, and disease. The level of our understanding has clearly moved from knowing what fat soluble vitamins do to how they perform their functions. Hand in hand with a knowledge of their molecular mechanisms of action is the recognition that vitamins are used sparingly, and regeneration processes operate in certain cases to recycle vitamins from their metabolites. We have divided the volume into alphabetical sections beginning with vitamin A and the carotenoids through vitamins D, E, F, and K, and ending with coenzyme Q. The contributors are all acknowledged experts in their particular fields and have made significant contributions to published research results. All have worked assiduously to deliver the product of their labors on a restricted time scale and to provide the most up-to date information on their respective topics. We are truly grateful for their indulgence.

Fat-Soluble Vitamins

Xiaoyuan Wang

Endotoxins are potentially toxic compounds produced by Gram-negative bacteria including some pathogens. Unlike exotoxins, which are secreted in soluble form by live bacteria, endotoxins are comprised of structural components of bacteria. Endotoxins can cause a whole-body inflammatory state, sepsis, leading to low blood pressure, multiple organ dysfunction syndrome and death. This book brings together contributions from researchers in the forefront of these subjects. It is divided into two sections. The first deals with how endotoxins are synthesized and end up on the bacterial surface. The second discussed how endotoxins activate TLR4 and, in turn, how TLR4 generates the molecular signals leading to infectious and inflammatory diseases. The way endotoxins interact with the host cells is fundamental to understanding the mechanism of sepsis, and recent research on these aspects of endotoxins has served to illuminate previously undescribed functions of the innate immune system. This volume presents a description of endotoxins according to their genetic constitution, structure, function and mode of interaction with host cells.

Endotoxins: Structure, Function and Recognition

P. J. Quinn

Clinical Veterinary Microbiology

The last few years have witnessed an explosion of both interest and knowledge about apoptosis, the process by which a cell actively commits suicide. The number of publications on the topic has increased from nothing in the early 1980s to more than 10,000 papers annually today. It is now well recognized that apoptosis is essential in many aspects of normal development and is required for maintaining tissue homeostasis. The idea that life requires death seems somewhat paradoxical, but cell suicide is essential for an animal to survive. For example, without selective destruction of “non-self” T cells, an animal would lack immunity. Similarly, meaningful neural connections in the brain are whittled from a mass of cells. Further, developmental cell remodeling during tissue maturation involves programmed cell death as the major mechanism for functional and structural safe transition of undifferentiated cells to more specialized counterparts. Apoptosis research, with roots in biochemistry, developmental and cell biology, genetics, and immunology, embraces this long-ignored natural law. Failure to properly regulate apoptosis can have catastrophic consequences. Cancer and many diseases (AIDS, Alzheimer’s disease, Parkinson’s disease, heart attack, stroke, etc. ) are thought to arise from deregulation of apoptosis. As apoptosis emerges as a key biological regulatory mechanism, it has become harder and harder to keep up with new developments in this field.

Since its discovery in 1957, Coenzyme Q has piqued the interest of scientists from a wide range of disciplines because of its bioenergetics, vitamin-like behavior, and interactions with antioxidant vitamins E and C. Coenzyme Q: Molecular Mechanisms in Health and Disease is a comprehensive treatise on this often-studied coenzyme. International experts cover the research that led to its emergence as an exciting, new dietary supplement. The present volume summarizes the latest developments in various areas of CoQ research. New concepts on extramitochondrial functions of CoQ are discussed in two chapters, while recent discoveries in biosynthetic pathways for CoQ based on molecular genetic approaches are presented in another chapter. Further chapters explore the role of CoQ as an antioxidant, revealing the need for additional research in this exciting area. This book will be of extreme interest to biochemists, biophysicists, molecular and cell biologists, as well as nutritionists and biomedical health workers.

Peter J. Quinn

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