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This book covers biologically produced toxins, their chemistry, mode of action, and potential therapeutic applications. In the first part of the book, readers are introduced to the fundamental chemistry of biotoxins, their mechanisms of action, and possible antidotes, paving the way for a deeper understanding of their therapeutic potential. Subsequent chapters outline different types of biotoxins and their impact on food quality and safety, and their potential applications in agriculture and medicine. Particular attention is given to terrestrial and aquatic phytotoxins, bioactive metabolites produced by microorganisms and plants, mycotoxins, phycotoxins, cyanotoxins, neurotoxins of natural origin, bacterial toxins, insect toxins and marine toxins. An authoritative perspective on topics like bioterrorism and the military potential of biological toxins is also offered in this book. The second part of the book presents an overview of cutting-edge detection techniques to identify emerging biotoxins in several matrices. Readers will find an authoritative overview of the recent developments in nanotechnology and microfluidics (nanomaterial-based systems), and biosensors (immunosensors, receptor-based biosensors, and cell-based biosensors). The book also covers other detection techniques applied to food such as fluorescent, colourimetric, electrochemical, photoelectrochemical, and electrochemiluminescent techniques. Given its breadth, the book appeals to researchers, academics, and students interested in biotoxins, their pharmacological importance and their impact on agriculture and human health.

Biogenic toxins are fascinating natural products characterized by an enormous diversity of chemical structures and pharmacological activities. They not only pose hazards to humans and animals, but they are important components in the interplay of substances and living beings in nature and, moreover, important sources for new drugs. Numerous images of plants and chemical structural formulas complete the book, as well as extensive references for further reading. The multivolume reference is an essential resource for physicians, veterinarians, pharmacists, chemists, biochemists, food chemists and biologists, for students in the relevant fields, and maybe for interested laymen. All aspects of natural toxins based on the latest scientific knowledge are included: All aspects of the toxicology of all living organisms and natural foods, chemistry, action mechanisms, symptoms of intoxications. The only book arranged on a strictly scientific base according to the biogenetic origin and chemical structure. Natural Poisons and Venoms in 5 Volumes:Volume 1: Plant Toxins: Terpenes and Steroids 2023, ISBN 978-3-11-072472-1 Volume 2: Plant Toxins: Polyketides, Phenylpropanoids and Further Compounds 2024, ISBN 978-3-11-072851-4 Volume 3: Plant Toxins: Alkaloids and Lectins 2025, ISBN 978-3-11-112740-8 Volume 5: Fungal and Microbial Toxins 2025, ISBN 978-3-11-072856-9

Hormones, Regulators and Hippocampus, Volume 118 in the Vitamins and Hormones serial highlights new advances in the field, with this new volume presenting interesting chapters, including Thyroid hormone regulation of adult hippocampal neurogenesis – putative molecular and cellular mechanisms, Synergistic gene regulation by thyroid hormone and glucocorticoid in the hippocampus, Oxytocin and vasopressin in the hippocampus, Steroid hormones and hippocampal neurogenesis in the adult mammalian brain, Steroidogenic enzymes in the hippocampus: transcriptional regulation aspects, Ectonucleotidases in the hippocampus: spatial distribution and expression after ovariectomy and estradiol replacement, and much more. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Vitamins and Hormones serials - Updated release includes the latest information on Hormones, Regulators and Hippocampus

Hormones and Aging, Volume 115 in the Vitamins and Hormones series, highlights advances in the field, with this new volume presenting timely topics, including hypothalamic aging and hormones, endocannabinoids and aging-inflammation, neuroplasticity, mood and pain, the impact of hormones and bone loss across the menopause transition, and much more. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Vitamins and Hormones series - Includes the latest information on Hormones and Aging

This book focuses on the significance and implications of Calcium (Ca2+) transport machinery in the plant cell in generating alternating Ca2+ levels and impacting the cell's physiological, biochemical and developmental processes. In the following sections, the concept of Ca2+ homeostasis, Ca2+ signature, various Ca2+ transport protein families and conductance systems would be discussed in detail- elucidation of their functional characterization, structure, mechanism, sub-cellular localization and specific physiological roles in ensuring Ca2+ homeostasis. Also, the aspect of Ca2+ as a “signaling hub” –transducing distinct plant responses to diverse environmental stimuli, Ca2+ binding proteins, and the tools used in studying these proteins are explained in brief to paint a holistic picture of Ca2+ transport in plant systems. This has resulted in an elaborative literature account to serve as a staple by providing recent insights and advance knowledge surrounding genetic and molecular dissection of Ca2+homeostasis maintenance mechanisms and extant Ca2+ transport systems in plants.

The chemical study of insects has been growing for four decades, and with it an interest in how insects make their pheromones, hormones, defensive secretions, venoms, pigments and surface coverings. By investigating the biosynthesis of insects, one can gain a greater insight into the structure and function of insect compounds, into ways of disrupting biosynthetic reactions in pest species and how these pathways evolved. The first textbook of its kind, Biosynthesis in Insects amalgamates previously fragmented information and recent exciting developments in the field to provide a unique, concise chemical study of how insect substances are biosynthesised. This book provides a comprehensive introduction to the ways that have been investigated, by which a great variety of insects, and some related arthropods, make their so-called secondary metabolites. Simpler biosynthetic pathways are explored before considering the experimental methods by which these studies are conducted. Consideration is also given to some of the plant substances which insects store or metabolize to their own use. Abundantly illustrated with structures and reactions, and some beautiful photographs, Biosynthesis in Insects includes a series of problems and answers to facilitate and assess learning, making this unique look at biosynthesis in insects and their near relations ideal for students with some chemical background starting out on a study of insect substances. Researchers and academics will also welcome the amalgamation of previously scattered information. Including an index of compounds and species, and lists for further reading, this book provides a truly unique source for those working in the field.

This book covers key topics in polyamine research from a range of organisms, including plants, mammals, and prokaryotes such as bacteria and archaea. The book provides an introduction to general concepts in the field of polyamine research, as well as more detailed information. With the availability of genome sequence data from a broad range of organisms, the evolution of the genes involved in polyamine metabolism is discussed. The mode of action of polyamines has been shown to be dependent on cation channels, and this mechanism is described in the book. The origin of polyamine transporters (from bacteria, yeasts, and plants) is described. The various effects of polyamines on growth and survival are also documented. The book details the mechanisms of polyamine homeostasis and the role of polyamine molecules as precursors of secondary metabolites such as plant alkaloids and toxins derived from spiders and wasps. The role of polyamines in longevity and disease is discussed. A link between polyamine contents and cancer progression is reported, as is the use of polyamine metabolites as diagnostic markers in the initial stages of cancer. Moreover, a novel approach that utilizes the polyamine pathway of a parasite as a drug target in African sleeping sickness is described. Therefore, this book is a valuable resource, both as a textbook for undergraduate and graduate students and also as a reference book for front-line polyamine researchers.

With contributions by numerous experts

The nature.and diversity of presentations at the conference on:'Bee Products: Prop­ erties, Applications and Apitherapy'held at Tel-Aviv on May 26--30, 1996, emphasize the increasing interest of physicians, practitioners, scientists, herbalists, dieticians, cosmeti­ cians, microbiologists, and beekeepers in different facets of bee products. This volume consists of a selection of 31 contributions presented at the conference and which provide information on the present status of our knowledge in this area. In spite of their diversity, they reflect the mainstream of the conference, namely:'Imported'Prod­ ucts (honey, pollen and propolis), Exocrine Secretions of Workers (venom, royal jelly). Toxicity and Contaminants, Quality Control, Marketing, Apitherapy, Cosmetics, etc. Since antiquity, honey as well as other bee products were used as food, as a cure for ailments of humans and animals, and as cosmetics. We hope that this volume will contribute to interdisciplinary studies on chemical composition, pharmacological effects, nutrition, and other aspects of bee products. Critical and unbiased experimental research may unravel the yet unknown composition and mode of action of bee products and elucidate many unanswered questions. The noteworthy features of this conference were the participants from all parts of the world and of different cultural backgrounds, who shared their keen interest and curios­ ity regarding honey bees and their products. We thank all of them for their personal con­ tribution to the success of this conference.

The research field of somatosensory processing in mammals has experienced revolutionary changes in recent years. Accumulation of basic and clinical data has greatly accelerated, and new phenomena have emerged. With the aid of new, refined methods, molecular and cellular changes have been described, underlying the signal transduction-transmission between the internal/external environment and the central nervous system have been described. The discovery of the interaction between the nervous and the immune system has, for example changed our view on the development of inflammatory diseases, while the cloning of genes encoding different trophic factors has boosted studies revealing profound changes in the regeneration of neurons, and induction of changes in phenotype. The study of the pre-and postsynaptic modulation of transmitter release, and the examination of the combined effects of amino acid and peptide transmitters has become recently possible by using cultured cell lines and in vitro techniques. Although it is in embryonic state, computational properties of single DRG cells under normal and pathological conditions are being investigated. Results soon or later will have a great impact on pain research and consequently ultimately in clinical pain management. This brief introduction indicates how our knowledge of the somatosensory system has increased dramatically recently. However, many investigators cultivate only a very specific field in the growing area of somatosensory research and find it difficult to integrate a more universal knowledge of their work.

This volume is dedicated to Professor Ullrich Trendelenburg. It contains the proceedings of a symposium which was held in his honour on the occasion of his retirement and took place March 22-24, 1991 in Wiirzburg. Ullrich Trendelenburg was the head of the Department of Pharmacology at Wiirzburg University from 1968 till the end of March 1991. He is famous internationally for his contributions to the physiology and pharmacology of the autonomic nervous system, and his impact on pharmacology in general throughout the world has been outstanding. The various phases of his life and his career have been delineated recently by Youdim and Riederer (Journal of Neural Transmission; Suppl. 32, 1990). The articles included in this volume reflect a considerable range of current research work dealing with various aspects of neuropharmacology, i. e., the field of research Ullrich Trendelenburg has influenced most. One or more authors of each chapter are either former or present students and coworkers or close friends of Ullrich Trendelenburg. The first section is devoted to the synthesis and metabolism of catecholamines as well as to the mechanisms by which amine transmitters are removed from the extracellular fluid; three chapters deal with the two types of extraneuronal uptake of catecholamines. The second section concentrates on the release of catecholamines in the peripheral and the central nervous system, the regulation of transmitter release and the noradrenaline-ATP co-transmis­ sion. The third section deals with the pharmacology of various receptors, including agrenoceptors, adenosine, 5-HT and glutamate receptors.

Not since the late 1970s has a single work presented the biology of this heterogenous group of secondary alkaloids in such depth. Alkaloids, a unique treatise featuring leaders in the field, presents both the historical use of alkaloids and the latest discoveries in the biochemistry of alkaloid production in plants alkaloid ecology, including marine invertebrates, animal and plant parasites, and alkaloids as antimicrobial and current medicinal use. Highlights include chapters on the chemical ecology of alkaloids in host-predator interactions, and on the compartmentation of alkaloids synthesis, transport, and storage. Extensive cross-referencing in tabular format makes this volume an excellent reference.

Intoxication of humans and animals has become increasingly important in recent years as has contamination of the environment by a variety of chemicals. In order to develop effective means by which such intoxication and contamination can be properly handled, it is imperative to know how these environmental agents act in humans and animals. Despite studies conducted by various investigators, the mechanisms of action of these environmental agents have not been fully elucidated. Insecticides are by no means an exception in terms of the seriousness of the problem and of the urgency of the need for such information. In order to complete a picture of the effects of any particular insecticide, it is of utmost importance that its actions at various levels ranging from those of molecules to whole animals be analyzed and synthesized. To understand the toxicological action on animals or humans, it is not sufficient to know the action at each level only. The actions at various levels must be integrated to construct a picture of the toxic effect on the intact organism. However, in spite of the large body of information that has been accumulated during the past few decades, little or no attempt has been made to integrate experimental data obtained at the molecular, cellular, organ, and animal levels together in order to define the whole picture of insecticidal action.

Biophysics is a rapidly-evolving interdisciplinary science that applies theories and methods of the physical sciences to questions of biology. Biophysics encompasses many disciplines, including physics, chemistry, mathematics, biology, biochemistry, medicine, pharmacology, physiology, and neuroscience, and it is essential that scientists working in these varied fields are able to understand each other's research. Comprehensive Biophysics, Nine Volume Set will help bridge that communication gap. Written by a team of researchers at the forefront of their respective fields, under the guidance of Chief Editor Edward Egelman, Comprehensive Biophysics, Nine Volume Set provides definitive introductions to a broad array of topics, uniting different areas of biophysics research - from the physical techniques for studying macromolecular structure to protein folding, muscle and molecular motors, cell biophysics, bioenergetics and more. The result is this comprehensive scientific resource - a valuable tool both for helping researchers come to grips quickly with material from related biophysics fields outside their areas of expertise, and for reinforcing their existing knowledge. - Biophysical research today encompasses many areas of biology. These studies do not necessarily share a unique identifying factor. This work unites the different areas of research and allows users, regardless of their background, to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding - The field of biophysics counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Biophysics fills this vacuum, being a definitive work on biophysics. It will help users apply context to the diverse journal literature offering, and aid them in identifying areas for further research - Chief Editor Edward Egelman (E-I-C, Biophysical Journal) has assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource

Cells maintain uneven distribution of Na, K and Ca ions across the cell membrane and membranes of intracellular organellae. Cells exert their functions by allowing for some ion to cross the membrane through ion channels which either produces an electrical effect across the membrane or switches on a series of chemical or physicochemical reactions. This is a comprehensive book about these vitally important ion channels with detailed description of the molecular structure and function and especially of activators and inhibitors. All chapters are written by renowned specialists in their field.

The need for information in the understanding of membrane systems has been caused by three things - an increase in computer power; methodological developments and the recent expansion in the number of researchers working on it worldwide. However, there has been no up-to-date book that covers the application of simulation methods to membrane systems directly and this book fills an important void in the market. It provides a much needed update on the current methods and applications as well as highlighting recent advances in the way computer simulation can be applied to the field of membranes and membrane proteins. The objectives are to show how simulation methods can provide an important contribution to the understanding of these systems. The scope of the book is such that it covers simulation of membranes and membrane proteins, but also covers the more recent methodological developments such as coarse-grained molecular dynamics and multiscale approaches in systems biology. Applications embrace a range of biological processes including ion channel and transport proteins. The book is wide ranging with broad coverage and a strong coupling to experimental results wherever possible, including colour illustrations to highlight particular aspects of molecular structure. With an internationally respected list of authors, its publication is timely and it will prove indispensable to a large scientific readership.

This mini-encyclopedia contains more than 1,500 alphabetical entries from the entire field of peptide science in one handy volume, as well as the technical terms, acronyms and concepts used in peptide chemistry. It also features the complete sequence of more than 800 peptides, numerous illustrations and numerous cross-references. Areas covered include: - biological peptides and small proteins - peptide hormones - pharmaceutical peptides - peptide antibiotics - peptide inhibitors - peptide reagents - peptide tags - structural classes - synthesis and purification - analytical methods - proteomics and peptidomics. Condensed yet accessible, only essential information is displayed, extensively linked via references to the recent scientific literature for further study.

With contributions by numerous experts

The Porphyrin Handbook, Volume 11: Bioinorganic and Bioorganic Chemistry presents the fundamental aspects of the synthesis, structure, chemistry, and spectroscopy of phthalocyanines. This book discusses the biology and medical implications of porphyrin systems. Organized into seven chapters, this volume begins with an overview of the design, synthesis, and study of the structural and functional models of heme/copper terminal oxidases. This text then examines the proteins containing iron-protoporphyrin IX (heme), which play key roles in photosynthesis and respiration. Other chapters consider the syntheses of chiral porphyrin derivatives and summarize the uses of such compounds in enantioselective control. This book discusses as well the reactivity and synthesis of synthetic carbine metalloporphyrins. The final chapter deals with the B12-coenzymes, which is the most complex and physiologically important organometallic enzymatic reactions that directly depend on the reactivity of metal coordinated organic ligands. This book is a valuable resource for research scientists, clinicians, and engineers.

How do you keep track of basic information on the proteins you work with? Where do you find details of their physicochemical properties, sequence information, gene organization? Are you tired of scanning review articles, primary papers and databases to locate that elusive fact? The Academic Press FactsBook series will satisfy scientists and clinical researchers suffering from information overload. Each volume provides a catalogue of the essential properties of families of molecules. Gene organization, sequence information, physicochemical properties, and biological activity are presented using a common, easy to follow format. Taken together they compile everything you wanted to know about proteins but were too busy to look for.In a set of four inter-related volumes, The Ion Channel FactsBook provides a comprehensive framework of facts about channel molecules central to electrical signalling phenomena in living cells. The first volume is devoted to Extracellular Ligand-Gated Integral Receptor-Channel Families including those molecular complexes activated by: 5-Hydroxytryptamine, ATP, Glutamate, Acetylcholine, GABA, Glycine. - Nomenclature - Expression - Sequence analyses - Structure and function - Electrophysiology - Pharmacology - Information retrieval