Glutathione 1990

The aim of this important book is to present the reader with developments concerning glutathione research. This work focuses on the synthesis-degradation and oxidation-reduction cycles of glutathione, the physiological functions of glutathione (especially in mammalian cells), and the analytical methods used to accurately measure the glutathione status of cells. This resource addresses specific modification of glutathione metabolism that is of special interest in the treatment of some tumors. This rare volume also introduces some different, new techniques on how to accurately measure glutathione, specifically in its oxidized form. Anyone involved with biochemistry, physiology, toxicology, pharmacology, nutrition and radiation biology will find this publication interesting and filled with useful information. It is also a valuable reference for research scientists in such fields as aging, metabolism disorders, and glutathione research.

The aim of this important book is to present the reader with developments concerning glutathione research. This work focuses on the synthesis-degradation and oxidation-reduction cycles of glutathione, the physiological functions of glutathione (especially in mammalian cells), and the analytical methods used to accurately measure the glutathione status of cells. This resource addresses specific modification of glutathione metabolism that is of special interest in the treatment of some tumors. This rare volume also introduces some different, new techniques on how to accurately measure glutathione, specifically in its oxidized form. Anyone involved with biochemistry, physiology, toxicology, pharmacology, nutrition and radiation biology will find this publication interesting and filled with useful information. It is also a valuable reference for research scientists in such fields as aging, metabolism disorders, and glutathione research.

Glutathione s-transferases (GSTs) constitute the most important enzymes protecting human and many other organisms from potentially toxic chemicals, including drugs and carcinogens. This book reviews scientific developments in research of this enzyme.

This text presents the principles of mineral nutrition in the light of current advances. For this second edition more emphasis has been placed on root water relations and functions of micronutrients as well as external and internal factors on root growth and the root-soil interface.

Glutathione (GSH) has been described for a long time just as a defensive reagent against the action of toxic xenobiotics (drugs, pollutants, carcinogens), both directly and as a cofactor for GSH transferases. As a prototype antioxidant, it has been involved in cell protection from the noxious effect of excess oxidant stress, both directly and as a cofactor of glutathione peroxidases. In addition, it has long been known that GSH is capable of forming disulfide bonds with cysteine residues of proteins, and the relevance of this mechanism ("S-glutathionylation") in regulation of protein function has been well documented in a number of research fields. Rather paradoxically, it has also been highlighted that GSH—and notably its catabolites, as originated by metabolism by gamma-glutamyltransferase—can promote oxidative processes, by participating in metal ion-mediated reactions eventually leading to formation of reactive oxygen species and free radicals. Also, a fundamental role of GSH has been recognized in the storage and transport of nitric oxide (NO), in the form of S-nitrosoglutathione (GSNO). The significance of GSH as a major factor in regulation of cell life, proliferation, and death, can be regarded as the integrated result of all these roles, as well as of more which are emerging in diverse fields of biology and pathophysiology. Against this background, modulation of GSH levels and GSH-related enzyme activities represents a fertile field for experimental pharmacology in numerous and diverse perspectives of animal, plant and microbiologic research. This research topic includes 14 articles, i.e. 4 Opinion Articles, 6 Reviews, and 4 Original Research Articles. The contributions by several distinguished research groups, each from his own standpoint of competence and expertise, provide a comprehensive and updated view over the diverse roles, the changing faces of GSH and GSH-related enzymes in cell’s health, disease and death.

This informative treatise offers a concise collection of existing, expert data summarizing the composition of milk. The Handbook of Milk Composition summarizes current information on all aspects of human and bovine milk, including: sampling, storage, composition, as well as specific chapters on major and minor components such as protein, carbohydrates, lipids, electrolytes, minerals, vitamins and hormones. The book also features comprehensive coverage of compartmentation, host-defense components, factors affecting composition, composition of commercial formulas, and contaminants. * Reliable data on the composition of human and bovine milks. * Discusses the many factors affecting composition. * Composition tables make up 25-30% of the total book. * Problems concerning sampling and analysis are described. * Should appeal equally to industry and academia. * Also of interest to developing countries in need of information on infant nutrition and agricultural development

The goal of this text is to focus readers attention on three major areas; the origin and localization of GSH in the nervous system; the multiple effects of GSH on neural health activity; and the potential for alterations on GSH status to lead to neurological damage of the type observed in amyotrophic lateral sclerosis, Parkinson's disease and other neurological disorders. The text also touches upon the additional roles of the antoxidant GSH, including possible neurotransmitter action, redox modulation of ionotropic receptor function, and neuroprotection against exicitoxic actions of glutamate.