Download or read book Marine Toxins and Other Bioactive Marine Metabolites written by Yoshirō Hashimoto and published by . This book was released on 1979 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Toxins and Other Bioactive Marine Metabolites written by Yoshiro Hashimoto and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioactive Marine Natural Products written by Dewan S. Bhakuni and published by Springer Science & Business Media. This book was released on 2006-06-30 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioactive Marine Natural Products is the first book available that covers all aspects of bioactive marine natural products. It fills the void in the literature for bioactive marine natural products. The book covers various aspects of marine natural products and it is hoped that all the major classes of bioactive compounds are included. Different classes of marine organisms and the separation and isolation techniques are discussed. The chemistry and biology of marine toxins, peptides, alkaloids, nucleosides and prostanoids are discussed in detail. Biological, toxicological and clinical evaluations are also dealt with to ensure that the book may be adopted at any stage by any practicing organic chemist or biologist, working in academia or in R and D divisions of pharmaceutical companies. Each chapter in the book includes an abstract to highlight the major points discussed in the text and concluding remarks are given. References to books, monographs, review articles and original papers are provided at the end of each chapter.
Download or read book Marine Toxins as Research Tools written by Nobuhiro Fusetani and published by Springer Science & Business Media. This book was released on 2009-01-31 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine organisms produce a wide array of toxins, many of which are not only structurally unusual, but also show potent and interesting modes of action. Since the discovery of tetrodotoxin, a pufferfish toxin, as a potent and selective blocker of Na+ channels in 1964, it has been widely used as a research tool in pharmacological and physiological research. This has led to the identification of a number of important biological functions for Na+ channels. In recent years, much biological research has been carried out at molecular and cellular levels, and therefore selective inhibitors of enzymes and selective antagonist/agonists of receptors and channels have become increasingly important research tools. Accordingly, interest in using such compounds as reagents has increased. Marine toxins are some of the most popular research tools and have already contributed much to our understanding of biological processes and disease mechanisms.
Download or read book From Monsoons to Microbes written by National Research Council and published by National Academies Press. This book was released on 1999-05-05 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: What can sharks teach us about our immune system? What can horseshoe crabs show us about eyesight? The more we learn about the ocean, the more we realize how critical these vast bodies of water are to our health and well-being. Sometimes the ocean helps us, as when a marine organism yields a new medical treatment. At other times, the ocean poses the threat of coastal storm surges or toxic algal blooms. From Monsoons to Microbes offers a deeper look into the oceans that surround us, often nurturing yet sometimes harming humankind. This book explores the links among physical oceanography, public health, epidemiology, marine biology, and medicine in understanding what the ocean has to offer. It will help readers grasp such important points as: How the ocean's sweeping physical processes create long-term phenomena such as El Nino and short-term disastrous events such as tsunamisâ€"including what communities can do to prepare. What medicines and nutritional products have come from the ocean and what the prospects are for more such discoveries. How estuaries workâ€"where salt and fresh water meetâ€"and what can go wrong, as in the 7,000 square mile "dead zone" at the out-flow of the Mississippi River. How the growing demand for seafood and the expansion of ocean-going transport has increased our exposure to infectious agentsâ€"and how these agents can be tracked down and fought. Why "red tides" of toxic algae suddenly appear in previously unaffected coastal areas, and what happens when algal toxins find their way into our food supply or the air we breathe. The book recommends ways we can implement exciting new technologies to monitor the physics, chemistry, and biology of the ocean to recognize change as it happens. From the impact of worldwide atmospheric warming to the significance of exotic bacteria from submarine hydrothermal vents, the ocean has many depths left to explore.
Download or read book Novel Oxylipins and Other Bioactive Metabolites from Marine Algae written by Dale George Nagle and published by . This book was released on 1994 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: I have participated in a drug discovery program designed to screen marine algae for inhibitors of cancer-related enzymes, antitumor compounds, antiinflammatory substances, and other agents of potential pharmaceutical utility. Over 1,500 lipid and aqueous extracts of marine plants and animals were surveyed for biomedical potential. Assays designed to screen extracts for new types of marine toxins have served to guide the isolation and identification of biologically active compounds. Extracts of the Oregon marine alga Constantinea simplex were found to contain a mixture of constanolactones, and lactonized cyclopropyl-containing oxylipin metabolites that logically derive from arachidonic and eicosapentaenoic acids. Spectroscopic analysis and chiroptical measurements of the natural products and various synthetically produced derivatives afforded the structures of seven structurally related compounds. Nakienones A-C and nakitriol, a series of reactive cytotoxic metabolites, were isolated from dead and necrotic branches of stony coral (Acropora sp.) which were completely covered with a gray-black mat of cyanobacteria (Synechocystis sp.). Their structures were determined spectroscopically by interpretation of 2D-NMR experiments, including heteronuclear multiple-bond coherence spectroscopy (HMBC) and 2-D nuclear Overhauser exchange spectroscopy (NOESY), and by comparison with model compounds. Bioassay-guided fractionation of the organic extract of a Curacao Lyngbya majuscula organic extract led to the isolation of an extremely potent brine shrimp toxin with antiproliferative activity. The structure of this new thiazoline ring-containing lipid, curacin A, was deduced from spectroscopic information and comparison of products obtained from chemical degradation of the natural product with the same substances prepared by synthesis. Curacin A is an antimitotic agent that inhibits microtubule assembly and the binding of colchicine to tubulin. In addition to curacin A, a potent new ichthyotoxic depsipeptide (antillatoxin), a new malyngamide derivative, and an unusual molluscicidal compound have been isolated from this alga.
Download or read book Recent Advances in the Analysis of Marine Toxins written by and published by Elsevier. This book was released on 2017-09-18 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Advances in the Analysis of Marine Toxins, Volume 78, the newest release in the Comprehensive Analytical Chemistry series, presents chapters from the best authors in the field, making it an essential resource. Updated sections in this new volume include topics such as The importance of toxin detection and quantification: environmental issues, public health, food safety, animal health, bioterrorism, bioactive compounds, medical approach, an LC-MS/MS analysis of marine toxins, Animal bioassays: identification of toxins and mechanism of action, Receptor binding assays for the analysis of marine toxins, Immunoassays and optical biosensors (visual, SPR, fluorescence) for marine toxins, and Electrochemical biosensors for marine toxins. Chapters in this ongoing series contain practical and useful information, describing real advantages and limitations. Experts in this field contribute based on their research and personal point-of-view. Contains contributions from the best authors in the field Provides an essential resource for marine monitoring managers and scientific community
Download or read book Bioactive Marine Natural Products written by D.S. Bhakuni & D.S. Rawat and published by . This book was released on 2005-01-01 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Marine Natural Products written by Ernesto Fattorusso and published by Springer. This book was released on 2012-10-23 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Handbook of Marine Natural Products" takes a fresh approach to describing the major themes of research in this rapidly developing field. This two volume reference work begins with a section that provides a taxonomic survey of the secondary metabolites of diverse marine life including microbes, algae, and invertebrates. This is followed by a demonstration of the techniques and strategies employed in modern structure elucidation of complex natural products. The natural roles of marine natural products are then explored in a series of focused chapters which include the topics of symbiosis, anti-predation and antifouling, chemical interactions, and defence against UV stress. Various routes which facilitate the understanding of marine natural product biosynthesis are subsequently explained and these are followed by an extensive set of chapters on the biomedical potential of marine natural products. The latter portion of this section considers the technologies and scientific disciplines necessary for advancing bioactive marine natural product lead compounds into actual pharmaceuticals. The reference work finishes with a selection of chapters describing marine toxins and their impact on public health and seafood resources. Final thoughts presented at the end of the second volume focus on the future of this field of investigation and discovery research. This publication is presented as a reference handbook and general concepts are emphasized and illustrated with numerous interesting examples, graphical information, and a comprehensive index. "Handbook of Marine Natural Products" introduces students who are at advanced undergraduate and entry graduate student levels to this fascinating multidisciplinary field. It is an ideal desk companion for courses focusing on this contemporary area.
Download or read book Bioactive Metabolites from Marine Organisms written by Shirley W. Dong and published by . This book was released on 2003 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Biotoxins written by Hans P. Egmond and published by Food & Agriculture Org.. This book was released on 2004 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides an extensive review of different aspects of five shellfish-poisoning syndromes (paralytic, diarrhoeic, amnesic, neurologic and azapiracid), as well as one fish-poisoning syndrome (ciguatera fish poisoning), and discusses in detail the causative toxins produced by marine organisms, chemical structures and analytical methods of the toxins, habitat and occurrence of the toxin-producing organisms, case studies and existing regulations. Based on this analysis, risk assessments are carried out for each of the toxins, and recommendations are elaborated to improve the management of these risks in order to reduce the harmful effect of these toxins on public health.
Download or read book Marine Biotoxins and Seafood Poisoning written by Pedro Reis Costa and published by MDPI. This book was released on 2019-11-21 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine biotoxins may pose a threat to the human consumption of seafood and seafood products. The increasing global trade and higher demand for seafood products worldwide represents a challenge for food safety authorities, policy makers, food business operators, and the scientific community, in particular, researchers devoted to environmental sciences, toxicology, and analytical chemistry. In addition, due to changes in climate conditions and technological developments, new and emerging marine toxins are being detected in regions where they were previously unknown. This Special Issue highlight studies aiming to the develop detection methods for marine biotoxins for better understanding the dynamics of accumulation/elimination of marine biotoxins and their effects on marine organisms, as well as toxin exposure studies that aim to evaluate the risks associated with the consumption of contaminated seafood.
Download or read book Bioactive Compounds from Marine Organisms written by Mary-Frances Thompson and published by . This book was released on 1991 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Pharmacognosy written by Dean Martin and published by Elsevier. This book was released on 2012-12-02 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Pharmacognosy: Action of Marine Biotoxins at the Cellular Level focuses on the study and utilization of marine drugs. This book discusses the methods of isolation and characterization of bioactive agents, bioassays, microcalorimetry, voltage-clamp techniques, toxin-induced alterations, measurement of muscle contraction, and kinetics of toxin-induced hemolysis. Organized into nine chapters, this book starts with an overview of the use and usefulness of marine bioactive agents as research tools. This text then examines the pharmacological effects of maculotoxin, which are similar to those of tetrodoxin and saritoxin. Other chapters consider the role of choline in general cellular processes. This book discusses as well the rate of hemolysis as a function of prymnesin concentration. The final chapter deals with the features of the prymnesin–membrane interaction. This book is a valuable resource for pharmacologists, bacteriologists, zoologists, physiologists, botanists, and oceanographers. Scientists involved in biological oceanography and comparative physiology will also find this book useful.
Download or read book Pharmaceutical and Bioactive Natural Products written by David H. Attaway and published by Springer Science & Business Media. This book was released on 1993-03-31 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biotechnology may be defined as the application of scientific and engineering principles to the processing of materials by biological agents to provide goods and services (Bullet al. , 1982, p. 21) or as any technique that uses living organisms (or parts of organisms) to make or modify products, to improve plants or animals, or to develop microorganisms for specific use (OTC, 1988). In line with these broad definitions we can consider marine biotechnology as the use of marine organisms or their constituents for useful purposes in a controlled fashion. This series will explore a range of scientific advances in support of marine biotechnology. It will provide information on advances in three categories: (1) basic knowledge, (2) ap plied research and development, and (3) commercial and institutional issues. We hope the presentation of the topics will generate interest and interaction among readers in the academic world, government, and industry. This first volume examines chemical and biological properties of some natural products that are useful or potentially useful in research and in the chemical and pharmaceutical industries. One chapter describes a system for producing such substances on a large scale. Biotechnology incorporates molecular biology in order to go beyond tradi tional biochemical technology such as the production of antibiotic drugs from bacterial cultures in bioreactors. Development of the technology for production of antibiotics in this way resulted from fundamental advances in chemistry, phar macology, microbiology, and biochemical engineering.
Download or read book Bioactive Metabolites from Marine Organisms written by Joseph Edward Biskupiak and published by . This book was released on 1985 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Marine Biotoxins written by Ana Gago-Mart´ınez and published by MDPI. This book was released on 2019-08-27 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of marine and freshwater toxins in geographical areas where they have never been reported before is a concern due to the considerable impact on (sea)food contamination, and consequently, on public health. Several groups of marine biotoxins, in particular tetrodotoxins, ciguatoxins, and palytoxins, are included among the relevant marine biotoxins that have recently emerged in several coastal areas. A similar situation has been observed in freshwater, where cyanobacterial toxins, such as microcystins, could end up in unexpected areas such as the estuaries where shellfish are cultivated. Climate change and the increased availability of nutrients have been considered as the key factors in the expansion of all of these toxins into new areas; however, this could also be due to more intense biological invasions, more sensitive analytical methods, or perhaps even an increased scientific interest in these natural contaminations. The incidences of human intoxications due to the consumption of seafood contaminated with these toxins have made their study an important task to accomplish in order to protect human health. This Special Issue has a focus on a wide variety of emerging biotoxin classes and techniques to identify and quantify them.
