Complexes Of Natural Flavonoids With Transition Metals

Human organisms adapted to plant-based diets in hunter-gatherers times. Statistical studies show that people consuming plant products on a regular basis have lower risks of developing cancer and neurodegenerative diseases than people preferably eating starch and fat. The beneficial effects of plants are primarily associated with flavonoids, molecules present in fruits, vegetables, teas, and herbs, also known in traditional medicine for their antibacterial and anti-inflammatory effects. Flavonoids are able to bind metals and form complexes. The present book summarizes the scientific evidence collected over the past decade on the structure, chemistry, and biological function of the complexes of natural flavonoids with nine essential metals representing d-block elements of the periodic table. The role of each individual metal in the human body and the diseases affected by metal-flavonoid complexes are described. The materials collected in the book will be of interest to chemists, biologists, nutritionists, and medicinal scientists.

Volume 18, entitled Metallo-Drugs: Development and Action of Anticancer Agents of the series Metal Ions in Life Sciences centers on biological, medicinal inorganic chemistry. The serendipitous discovery of the antitumor activity of cis-diamminodichloroplatinum(II) (cisplatin) by Barnett Rosenberg in the 1960s is a landmark in metallodrug-based chemotherapy. The success of cisplatin in the clinic, followed by oxaliplatin and carboplatin, along with their drawbacks relating mainly to resistance development and severe toxicity, initiated research on polynuclear platinum complexes and on Pt(IV) complexes as prodrugs. Furthermore, the indicated shortcomings led to the exploration of other transition and main group metal ions, among them Ru(II/III), Au(I/III), Ti(IV), V(IV/V), and Ga(III) including also the essential metal ions Fe(II/III), Cu(I/II), and Zn(II). Ionic as well as covalent and non-covalent interactions between structurally very different complexes and biomolecules like nucleic acids, proteins, and carbohydrates are studied and discussed with regard to their possible anticancer actions. Hence, MILS-18 summarizes the research at the forefront of medicinal inorganic chemistry, including studies on the next-generation, tailor-made anticancer drugs. All this and more is treated in an authoritative and timely manner in the 17 stimulating chapters of this book, written by 39 internationally recognized experts from 10 nations (from the US via Europe to China and Australia). The impact of this vibrant research area is manifested by more than 2700 references, nearly 150 illustrations (more than half in color) and several comprehensive tables. Metallo-Drugs: Development and Action of Anticancer Agents is an essential resource for scientists working in the wide range from enzymology, material sciences, analytical, organic, and inorganic biochemistry all the way through to medicine including the clinic ... not forgetting that it also provides excellent information for teaching.

Kaempferol is a flavonol that is relatively abundant in various plants and some edible berries. These compounds have antioxidative, anti-inflammatory, antihypertensive, lipolytic and anti-cancer effects. In this book, the authors discuss the chemistry, natural occurrences and health benefits of kaempferol. Topics include the effect of cyclodextrins complexation on the properties of kaempferol; kaempferitrin and kaempferol as nutraceutical compounds contributing to glucose homeostasis by acting at multiple biological sites; distribution of kaempferol glycosides and their function in plants; analytical approaches for kaempferol determination; chemoprotective effects of kaempferol in colorectal tumorigenesis; multipotent flavonoid kaempferol as molecular targets and mechanism of action in nanotechnology applications in cancer and human health; metal complexes of kaempferol and their speciation in human plasma; the action of kaempferol on oral cavity cancer and airway secretion; kaempferol as it regulates intestinal tight junction permeability; and identification of kaempferol in historical textiles.

Flavonoids are abundant secondary metabolites found in plants and fungi that have various roles in these organisms, including pigmentation, cell signalling, plant defence and inter-organism communication. Due to their abundance in nature, flavonoids are also important components of the human diet, and the last four decades have seen an intense study focused on the structure characterization of flavonoids and on their roles in mammal metabolism. This book reviews most of the well-established activities of flavonoids, and we also present more recent research studies on the area of flavonoids, including the chemical aspects of structure characterization of flavonoids, the biosynthesis of flavonoids in model plants as well as their role in abiotic stress situations and in agriculture, the role of flavonoids in metabolism and health and their importance in foods, from consumption to their use as bioactive components.

Providing a comprehensive review of reactions of oxidation for different classes of organic compounds and polymers, and biological processes mediated by free radicals, Oxidation and Antioxidants in Organic Chemistry and Biology puts the data and bibliographical information you need into one easy-to-use resource. You will find up-to-date information

In the recent years, considerable research has been carried out evaluating natural substances as antioxidative additives in food products, leading to novel combinations of antioxidants and the development of novel food products. In addition to their antioxidative capacity, these natural additives have positive effects on the human body with documented health benefits. This valuable new book provides an overview of natural antioxidants, their sources, methods of extraction, regulatory aspects, and application techniques, specifically focusing on different foods of animal origin to improve their oxidative stability.

This is the only book of its kind to provide an overview of the science of flavonoids in plants.

Nutritional Pathophysiology of Obesity and Its Comorbidities: A Case-Study Approach challenges students and practitioners to understand the role of nutrients within the pathophysiology and development of disease, specifically those diseases which develop as a result of obesity. Through a case-based approach, the author presents complex clinical scenarios that require multiple treatment strategies, including targeted diet modification as an adjuvant to medical therapy. The book is divided into 9 modules and 5 appendices each of which covers aspects of obesity and its comorbidities. Within each module, a case is detailed with relevant history, laboratory and physical data, and follow-up information. Each case is followed by a resource section which delineates current understanding of the pathophysiology of the condition, as well as the actions of nutrients and food components shown to modify these processes. A "further readings" section cites current supporting clinical and basic literature as well as published guidelines. Explores how obesity is a key player in the pathophysiology of many diseases, including diabetes mellitus, chronic renal failure, hypertension, and atherosclerosis Integrates current understandings of the molecular mechanisms of nutrient action on the processes of disease development and treatment Presents students and early practitioners with complex clinical scenarios through a practical case-based approach