Showing posts with label Pharmacology. Show all posts
Showing posts with label Pharmacology. Show all posts

Sunday, 20 October 2013

Toxic Plants of North America, 2nd Edition

Toxic Plants of North America, Second Edition is an up-to-date, comprehensive reference for both wild and cultivated toxic plants on the North American continent. In addition to compiling and presenting information about the toxicology and classification of these plants published in the years since the appearance of the first edition, this edition significantly expands coverage of human and wildlife—both free-roaming and captive—intoxications and the roles of secondary compounds and fungal endophytes in plant intoxications.

More than 2,700 new literature citations document identification of previously unknown toxicants, mechanisms of intoxication, additional reports of intoxication problems, and significant changes in the classification of plant families and genera and associated changes in plant nomenclature. Toxic Plants of North America, Second Edition is a comprehensive, essential resource for veterinarians, toxicologists, agricultural extension agents, animal scientists, and poison control professionals.


Handbook of herbs and spices: Second edition; Volume 1

Herbs and spices are among the most versatile and widely used ingredients in food processing. As well as their traditional role in flavouring and colouring foods, they have been increasingly used as natural preservatives and for their potential health-promoting properties, for example as antioxidants. Edited by a leading authority in the field, and with a distinguished international team of contributors, the Handbook of herbs and spices provides an essential reference for manufacturers wishing to make the most of these important ingredients. 

The first group of chapters looks at general issues including quality indices for conventional and organically produced herbs, spices and their essential oils.
 
The main body of the handbook consists of over twenty chapters covering key spices and herbs from aniseed, bay leaves and black pepper to saffron, tamarind and turmeric. Each chapter covers key issues from definition and classification including:  chemical structure; cultivation; post-harvest processing; uses in food processing  functional properties; quality indices; methods of analysis.



Thursday, 19 September 2013

Organic medicinal and Pharmaceutical chemistry; Eleventh Edition

For almost six decades, Wilson and Gisvold's Textbook of Organic Medicinal and Pharmaceutical chemistry has been a standard in the literature of medicinal chemistry. Generations of students and faculty have depended on this textbook not only for undergraduate courses in medicinal chemistry but also as a supplement for graduate studies. Moreover, students in other health sciences have found certain chapters useful at one time or another. The current editors and authors worked on the eleventh edition with the objective of continuing the tradition of a modem textbook for undergraduate students and also for graduate students who need a general review of medicinal chemistry. Because the chapters include a blend of chemical and pharmacological principles necessary for understanding structure activity relationships and molecular mechanisms of drug action, the book should be useful in supporting courses in medicinal chemistry and in complementing pharmacology courses. It is our goal that the eleventh edition follow in the footsteps of the tenth edition and reflect the dynamic changes occurring in medicinal chemistry. Recognizing that the search for new drugs involves both synthesis and screening of large numbers of compounds, there is a new chapter on combinatorial chemistry that includes a discussion on how the process is automated. The power of mainframe computing now is on the medicinal chemist's desk. A new chapter describes techniques of molecular modeling and computational chemistry. With a significant percentage of the general population purchasing alternative medicines, there is a new chapter on herbal medicines that describes the chemical content of many of these products.

The previous edition had new chapters on drug latentiation and prodrugs, immunizing biological, diagnostic imaging agents, and biotechnology. Expansion of chapters from the tenth edition includes the antiviral chapter that contains the newest drugs that have changed the way HIV is treated. Dramatic progress in the application of molecular biology to the production of pharmaceutical agents has produced such important molecules as modified human insulin, granulocyte colony-stimulating factors, erythropoietins, and interferons. all products of cloned and, sometimes, modified human genes. The chapter on biotechnology describes these exciting applications. Recent advances in understanding the immune system at the molecular level have led to new agents that suppress or modify the immune response, producing new treatments for autoimmune diseases including rheumatoid arthritis, Crohn's disease, and multiple sclerosis. Techniques of genetic engineering now allow the preparation of pure surface antigens as vaccines while totally eliminating the pathogenic organisms from which they are derived.



Drug Metabolism and Transport: Molecular Methods and Mechanisms

Two key aspects of how the body handles drugs and other chemicals are metabolism and transport. Metabolism is critical because it enables the body to process highly lipophilic molecules for further metabolism and eventual excretion, inactivates biologically active molecules, or detoxifies potentially toxic chemicals. Transport processes are critical because they determine the ability of drugs and other chemicals to gain access to sites of metabolism or to physiological or toxicological targets within tissues. The remarkable advances in molecular and cell biology and the development of novel in vitro model systems to study the various processes involved in metabolism and transport have expanded our knowledge and led to numerous, new therapeutic approaches to treatment of chemically induced toxicity and disease.

Drug Metabolism and Transport: Molecular Methods and Mechanisms, which is part of the Methods in Pharmacology and Toxicology series, presents a collection of chapters on selected aspects of metabolism and transport. The general approach of the chapters is to first present background on the topic to define the state of the science, to summarize key experimental models and methods that are used in the study of the process, and then to evaluate the utility of the various approaches and methods. Along the way, the various authors have endeavoured to provide insight into why each model or approach is advantageous and discuss limitations and cautions in the application of these models or approaches. The goal here is not to provide step-by-step recipes for how to conduct specific assays, although selected procedures are outlined in some detail. Rather, the goal is to present some rationale for why certain models or approaches are used and to describe insight into how they are used to address various issues in drug metabolism and transport.



Human Drug Metabolism: An Introduction; Second Edition

Human Drug Metabolism, An Introduction, Second Edition provides an accessible introduction to the subject and will be particularly invaluable to those who already have some understanding of the life sciences. Completely revised and updated throughout, the new edition focuses only on essential chemical detail and includes patient case histories to illustrate the clinical consequences of changes in drug metabolism and its impact on patient welfare. 

After underlining the relationship between efficacy, toxicity and drug concentration, the book then considers how metabolizing systems operate and how they impact upon drug concentration, both under drug pressure and during inhibition. Factors affecting drug metabolism, such as genetic polymorphisms, age and diet are discussed and how metabolism can lead to toxicity is explained. The book concludes with the role of drug metabolism in the commercial development of therapeutic agents as well as the pharmacology of some illicit drugs.



Drug Metabolism: Chemical and Enzymatic Aspects

Drugs and other xenobiotics can exert a wide variety of pharmacological and toxic effects. In order to understand these effects it is necessary to understand both the structural parameters that are a direct cause of these effects as well as the factors that control the concentration of the drug in the body, such as absorption, metabolism, and elimination. To fully appreciate drug action requires at least minimal expertise in a variety of disciplines such as chemistry, biochemistry, kinetics and biology. While complicated and demanding in its breadth such knowledge is central to the knowledge base of advanced students of Pharmacy, Pharmacokinetics, Medicinal Chemistry, Pharmacology and Toxicology. However, texts that focus on covering these disciplines in rationalizing drug action are rare. Furthermore, many of the effects are due to metabolites rather than due to the parent drug/xenobiotic and some metabolites, or intermediates that lead to metabolites, are chemically reactive. Therefore, when considering the effects of an agent, all of the metabolites that the body produces from the agent must also be taken into consideration. To try and address the gap in multidisciplinary knowledge required, as the title suggests, the focus of this book is on the chemistry, enzymology and to a lesser extent the kinetics of drug metabolism. As indicated above an understanding of this subject at a minimum requires a basic understanding of the chemistry involved. It is also important that these processes be placed into a biological context. Therefore, Chapter 2 entitled "Background for Nonchemists" and Chapter 3 entitled "Background for Chemists" attempt to explicitly confront these issues and provide the necessary background and context. Since chemically reactive metabolites have major implications for toxicity and since understanding their generation and properties requires the spectrum of disciplines outlined above a chapter is devoted to reactive metabolites. Finally, the only way to master the subject is with practice. Sample problems with answers are provided to facilitate this process.