Download or read book Chemistry and Toxicology of Pyrrolizidine Alkaloids written by A. R. Mattocks and published by . This book was released on 1986 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Naturally Occurring Pyrrolizidine Alkaloids written by Dr. Abdel-Fatta Rizk and published by CRC Press. This book was released on 1990-11-20 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants containing pyrrolizidine alkaloids are so numerous and widespread that they can be expected to be present in most environments. About 200 pyrrolizidine alkaloids have been isolated and identified from different plants. Interest in these alkaloids has increased in recent years due to their causative effects in the heavy loss of livestock in many countries. Naturally Occurring Pyrrolizidine Alkaloids discusses the plant sources and properties of pyrrolizidine alkaloids; extraction, fractionation and identification; various methods of spectrometry of pyrrolizidine alkaloids; quantitative determination; and the toxicity, carcinogenicity, pharmacology, and other biological activities of pyrrolizidine alkaloids. Researchers in veterinary and human medicine will find this book to be a fascinating and useful reference tool.
Download or read book Pyrrolizidine Alkaloids written by Helmut Wiedenfeld and published by Vandenhoeck & Ruprecht. This book was released on 2008 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pyrrolizidine alkaloids show only minor toxicity in their native state, but are metabolized in the human or animal organisms to carcinogenic, teratogenic and mutagenic compounds, with the precise structure of these compounds being responsible for the metabolic toxification process. Therefore, to be able to evaluate the toxic potential of each alkaloid, it is essential to exactly know the structure of the respective compound. X-ray structure analysis is the appropriate method both for elucidating the structure and for determining other parameters, such as the lengths of the bonds that influence the metabolic process. This book describes the incidence and the process of the intoxication as well as the possibilities to how the substances may reach the organism. In addition, the compounds elucidated by X-ray structure analysis to date are shown in their three-dimensional structure and structure-toxicity relationships are discussed.Pyrrolizidinalkaloide weisen in nativem Zustand nur geringe Toxizität auf, werden jedoch zu kanzerogenen, teratogenen und mutagenen Verbindungen metabolisiert, wenn sie in den menschlichen oder tierischen Organismus gelangen. Der Verlauf dieser Toxifizierung hängt von der konkreten Struktur dieser Stoffe und weiteren Parametern ab. Zur Bestimmung dieser Faktoren stellt die Röntgenstrukturanalyse die geeignete Methode dar. Im vorliegenden Buch werden das Vorkommen, der Ablauf der Toxifizierung und die Möglichkeiten, wie die Stoffe in den Organismus gelangen können, beschrieben. Es werden die bislang durch Röntgenstrukturanalyse vermessenen Verbindungen in ihrer 3D-Struktur aufgefÃ"hrt und Struktur-Toxizitätsbeziehungen diskutiert.
Download or read book The Pyrrolizidine Alkaloids written by L. B. Bull and published by . This book was released on 1968 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry and Toxicology of Diverse Classes of Alkaloids written by Murray Sheldon Blum and published by Alaken, Incorporated. This book was released on 1996 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alkaloids Chemical and Biological Perspectives written by S.W. Pelletier and published by Elsevier. This book was released on 2017-05-03 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph series provides unprecedented interdisciplinary coverage of research relating to the chemistry and biological properties of alkaloids - a class of biologically active compounds of more than 10,000 members. Timely, comprehensive and authoritative, the series features chapters on chemical properties and structure elucidation, synthesis, biosynthesis, taxonomy, spectroscopy, pharmacology, toxicology, and X-ray crystallography of alkaloids. The chapters are written and reviewed by eminent researchers, all of them acknowledged experts in the field. Subject and organism indexes are included for each volume.
Download or read book Poisonous Plants and Phytochemicals in Drug Discovery written by Andrew G. Mtewa and published by John Wiley & Sons. This book was released on 2020-12-22 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on phytochemicals and their potential for drug discovery, this book offers a comprehensive resource on poisonous plants and their applications in chemistry and in pharmacology. Provides a comprehensive resource on phytotoxins, covering historical perspectives, modern applications, and their potential in drug discovery Covers the mechanisms, benefits, risks and management protocols of phytotoxins in a scientific laboratory and the usefulness in drug discovery Presents chapters in a carefully designed, clear order, making it an ideal resource for the academic researcher or the industry professional at any stage in their career
Download or read book Toxicants of Plant Origin written by Peter R. Cheeke and published by CRC Press. This book was released on 1989-08-31 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive treatise offers an in-depth discussion of natural toxicants in plants, emphasizing their effects as defenses against herbivory. Coevolution of plants and her-bivores are covered with a detailed treatment of toxicant metabolism and systemic effects in mammalian tissues. Con-sideration of the economic importance of plant toxins, modi-fication by plant breeding, management of toxico-sis, and toxicant problems in various geographic areas are in-cluded. Each volume offers an extensive description of chemistry, biosynthesis, analysis, distribution in plants, metabolism in mam-mals and insects, and practical problems in humans and livestock.
Download or read book Analysis of Food Toxins and Toxicants 2 Volume Set written by Yiu-Chung Wong and published by John Wiley & Sons. This book was released on 2017-09-25 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of Food Toxins and Toxicants consists of five sections, providing up-to-date descriptions of the analytical approaches used to detect a range of food toxins. Part I reviews the recent developments in analytical technology including sample pre-treatment and food additives. Part II covers the novel analysis of microbial and plant toxins including plant pyrrolizidine alkaloids. Part III focuses on marine toxins in fish and shellfish. Part IV discusses biogenic amines and common food toxicants, such as pesticides and heavy metals. Part V summarizes quality assurance and the recent developments in regulatory limits for toxins, toxicants and allergens, including discussions on laboratory accreditation and reference materials.
Download or read book Alkaloids Secrets of Life written by Tadeusz Aniszewski and published by Elsevier. This book was released on 2007-03-22 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alkaloids, represent a group of interesting and complex chemical compounds, produced by the secondary metabolism of living organisms in different biotopes. They are relatively common chemicals in all kingdoms of living organisms in all environments. Two hundred years of scientific research has still not fully explained the connections between alkaloids and life. Alkaloids-Chemistry, Biological Significance, Applications and Ecological Role provides knowledge on structural typology, biosynthesis and metabolism in relation to recent research work on alkaloids. Considering an organic chemistry approach to alkaloids using biological and ecological explanation. Within the book several questions that persist in this field of research are approached as are some unresearched areas. The book provides beneficial text for an academic and professional audience and serves as a source of knowledge for anyone who is interested in the fascinating subject of alkaloids. Each chapter features an abstract. Appendices are included, as are a listing of alkaloids, plants containing alkaloids and some basic protocols of alkaloid analysis. * Presents the ecological role of alkaloids in nature and ecosystems * Interdisciplinary and reader friendly approach * Up-to-date knowledge
Download or read book Medical Toxicology of Natural Substances written by Donald G. Barceloux and published by John Wiley & Sons. This book was released on 2012-03-07 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest and information in the field of medical toxicology has grown rapidly, but there has never been a concise, authoritative reference focused on the subjects of natural substances, chemical and physical toxins, drugs of abuse, and pharmaceutical overdoses. Medical Toxicology of Natural Substances finally gives you an easily accessible resource for vital toxicological information on foods, plants, and animals in key areas in the natural environment.
Download or read book Haddad and Winchester s Clinical Management of Poisoning and Drug Overdose written by Michael W. Shannon and published by Saunders. This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition is a reference for information related to the clinical management of children and adults whose health has been effected or potentially effected by toxic agents, including drugs, environmental threats, and natural toxins.
Download or read book Poisonous Plants written by Kip Eugene Panter and published by Cabi. This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite decades of research, poisonous plants continue to be responsible for large economic losses to livestock producers throughout the world. As the expansion into rural areas and the use of rangelands increases, an understanding of plant toxicology has become ever more important. This book represents the product of a wide-range of research aimed at solving the various issues surrounding poisonous plants. Broader themes include plant biochemistry, toxic effects in animals and humans, and rangeland management approaches to prevent poisoning amongst others. Individual chapters address plant animal relationships, various classes of secondary plant compounds, isolation, identification and effects of these toxins on biological mammalian systems and analytical methods, diagnostic tools and management strategies for plant toxicoses in animals and humans.
Download or read book Alkaloids Chemical and Biological Perspectives written by S. William Pelletier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 8 of this series presents four timely reviews on alkaloids: Chapter 1 is a magnificent and monumental review of curare, "a group of dart and/or arrow poisons varying in composition and featuring muscle relaxation as their basic pharmacological action." The fascinating history of curare is recounted, beginning with early encounters by the Spanish Conquistadores through its use as arrow poisons by the forest tribes in hunting and warfare, its chemistry, ethnography, botany and pharmacology. A terminal section of this chapter treats the development of modern muscle relaxants. This chapter thus traces how curare-initially only a crude plant extract-has given rise to the widely used and very important neuromuscular blocking agents of today. The precise role of plant secondary metabolites and their interactions with insect herbivores have been focal points for research by chemists, botanists and entomologists for many years. Alkaloids and their glycosides are frequently involved as feeding deterrents. Chapter 2 treats the relationships between the chemistry of alkaloids in host plants and the effects that these compounds may have on insect herbivores. Interestingly, an alkaloid produced by a plant may manifest different effects on different insects.
Download or read book Toxicology in the Use Misuse and Abuse of Food Drugs and Chemicals written by P.L. Chambers and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many chemotherapeutic agents introduced for use in humans are carcinogenic in laboratory animals (Conklin et al. 1965; Shimkin et al. 1966; Griswold et al. 1968; Harris 1976). However, initially their beneficial effect in disseminated cancer was of such short duration that the inevitable death of the patient from his primary disease precluded any clinical manifestation of the carcinogenic potential. During the last decade, chemotherapy has radically changed the outlook for many patients with cancer. Combinations of drugs, administered as the primary treatment, have resulted in high rates of cure in patients with disseminated malignancies, such as stage IV Hodgkin's disease or childhood acute lymphocytic leukemia. In other disseminated forms of neoplasia, induction of a remission, a substantial palliation and a prolongation of survival have been achieved. In many instances of localised disease, where surgery with or without radiotherapy are the primary form of treatment, anticancer drugs have been used with success as adjuvant therapy for distant microscopic disease. With these spectacular achievements, secondary malignancies, in particular acute non-lymphocytic leukemia (ANLL), has become of major concern. Incidence Acute leukemia is the most frequent form of secondary neoplasia in patients treated for cancer (Penn 1981). In one large series, 5. 9% of all ANLL could be attributed to previous chemotherapy (Kapadia et al. 1980).
Download or read book Nutritional Management of Equine Diseases and Special Cases written by Bryan M. Waldridge and published by John Wiley & Sons. This book was released on 2017-04-17 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutritional Management of Equine Diseases and Special Cases offers a concise, easy-to-comprehend text for equine veterinarians with questions about commonly encountered nutritional problems. Assists veterinarians in supporting equine patients with special nutritional needs Focuses on nutritional problems and impact on different body systems Covers ponies, miniature horses, draft horses, donkeys, and mules Offers complete coverage of common diseases and problems helped by nutrition Includes useful chapters on poisonous plants and mycotoxins
Download or read book Meyler s Side Effects of Drugs written by Jeffrey K. Aronson and published by Elsevier. This book was released on 2015-10-15 with total page 7629 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meyler's Side Effects of Drugs: The International Encyclopedia of Adverse Drug Reactions and Interactions, Sixteenth Edition, Seven Volume Set builds on the success of the 15 previous editions, providing an extensively reorganized and expanded resource that now comprises more than 1,500 individual drug articles with the most complete coverage of adverse reactions and interactions found anywhere. Each article contains detailed and authoritative information about the adverse effects of each drug, with comprehensive references to the primary literature, making this a must–have reference work for any academic or medical library, pharmacologist, regulatory organization, hospital dispensary, or pharmaceutical company. The online version of the book provides an unparalleled depth of coverage and functionality by offering convenient desktop access and enhanced features such as increased searchability, extensive internal cross-linking, and fully downloadable and printable full-text, HTML or PDF articles. Enhanced encyclopedic format with drug monographs now organized alphabetically Completely expanded coverage of each drug, with more than 1,500 drug articles and information on adverse reactions and interactions Clearer, systematic organization of information for easier reading, including case histories to provide perspective on each listing Extensive bibliography with over 40,000 references A must–have reference work for any academic or medical library, pharmacologist, regulatory organization, hospital dispensary, or pharmaceutical company
