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Hypericum extract preparations are used extensively in many countries to treat mildly to moderately depressed patients. While this was based previously on traditional experience, extensive research over the last 10 years has given a broad preclinical and clinical basis to justify the use of Hypericum as an antidepressant. This book reviews the available data related to the biochemical, functional, and behavioural pharmacology of Hypericum and its active constituents. The clinical chapters overview the evidenced basis for its use as an antidepressant, initial data in anxiety and somatoform disorders, and the site effect profile of Hypericum and its possible relevant drug interactions. The known pharmacokinetics of the relevant constituents and the biopharmaceutical quality of commercially available Hypericum preparations are also discussed.
Ethnopharmacology is a component of Encyclopedia of Biological, Physiological and Health Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Ethnopharmacology is the scientific study correlating ethnic groups, their health, and how it relates to their physical habits and methodology in creating and using medicines. This Theme on Ethnopharmacology presents the field as an amalgam of perspectives, primarily those of pharmacology, pharmacognosy, anthropology, and botany. It highlights the uniquely biocultural perspective on ethnopharmacology offered by medical anthropology, which underscores that health and healing ...
A tribute to the pioneering scientific work of Professor Koji Nakanishi, whose studies of natural products have effaced some of the conventional boundaries between biology and chemistry. It discusses an array of chromatographic separation methods and determination of structures on a microscale, analyzes bioassay-directed fractionation and other means of isolating biologically active compounds from plants and other sources, covers vital enzymes isolated from marine organisms such as algae, and more.
This new series, Methods in Plant Biochemistry, is an authoritative reference on current techniques in the various fields of plant biochemical research. Each volume in the series, under the expert guidance of a guest editor, addresses a particular group of plant compounds.**The most current and useful methods of analysis are described, with detailed discussions of the development, protocols, and suitability of each technique. Case treatments, diagrams, chemical structures, reference data, and properties are featured where appropriate, along with a full list of references to the specialist literature.**Conceived as a practical companion to the Biochemistry of Plants, edited by P.K. Stumpf and E.E. Conn, no plant biochemical laboratory can afford to be without this comprehensive and up-to-date reference. Addresses the laboratory analysis of all major plant compounds**Illustrates authoritative and detailed practical instructions and recipes for analytical methods**Describes assays suitable for showing biological or pharmacological properties in crude plant extracts
In the plant kingdom a variety of chemical constituents occur in a glycoside form (conjugation with sugar). Glycosides are important, secondary metabolites. The structural diversity is a result of the vast amount of varieties and stereochemical configurations of the sugar component. Aglycones belong to terpenoid, steroid, flavonoid, quinonoid, lignan, other simple phenolics, and isothiocyanate. However, biological activities of glycosides are, in many cases, susceptible to the nature of sugar moieties, even though their aglycone is the same.Since the 80s, plant glycosides have been attracting an increasing volume of interest from botanists and phytochemists world-wide for the following reaso...
Medical and Health Sciences is a component of Encyclopedia of Biological, Physiological and Health Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. These volume set contains several chapters, each of size 5000-30000 words, with perspectives, applications and extensive illustrations. It carries state-of-the-art knowledge in the fields of Medical and Health Sciences and is aimed, by virtue of the several applications, at the following five major target audiences: University and College Students, Educators, Professional Practitioners, Research Personnel and Policy Analysts, Managers, and Decision Makers and NGOs.
The continent of Africa is richly endowed with diverse cultures, a body of indigenous knowledge and technologies. These bodies of knowledge and technologies that are indeed embodied in the diverse African cultures are as old as humankind. From time immemorial, they have been used to solve socio-economic, political, health, and environmental problems, and to respond to the development needs of Africans. Yet with the advent of colonialism and Western scientism, these African cultures, knowledges, and technologies have been despised and relegated to the periphery, to the detriment of the self-reliant development of Africans. It is out of this observation and realisation that this book was born....
Following the successful format of the original, this new edition presents applications of the most recent techniques for the detection, isolation, and structural determination of bioactive natural products. It features new case studies and illustrations that demonstrate applications of techniques covered in the book. Complementing as much as replacing the first edition, most of the contributors are new. The text includes updates on chemical extraction, and NMR-based structure determination, and new contributions on liquid chromatography linked with mass and NMR spectroscopy, dereplication approaches, assessment of source material for natural products and novel bioassay development.
This series identifies areas of research in natural plant products that are of immediate or projected importance from a practical point of view. It reviews these areas in a concise and critical manner. Graduate students, researchers will find the timely reviews presented here to be invaluable. Decision makers in industry and government agencies will also find the material beneficial.