Download or read book Vitamin E written by Etsuo Niki and published by Royal Society of Chemistry. This book was released on 2019-02-04 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamin E was discovered in 1922 by Evans and Bishop as an essential micronutrient for reproduction in rats. The active substance was isolated in 1936 by Evans and was named tocopherol, although the tocopherols and tocotrienols are actually a group of eight isomeric molecules that are characterized by a chromanol ring structure and a side chain. Providing an overview of the state-of-the-art of the chemistry of vitamin E, this book reflects the issues stemming from the complexity of the role and actions in vivo as well as in vitro. It summarizes information on the properties and function of vitamin E, the current understanding of the advantages and limitations of it, and also its application in promotion of health and prevention of diseases. Based on sound, solid scientific evidence, this is a timely addition to the literature as the centennial anniversary of the discovery of this important vitamin approaches.

Download or read book Vitamin E in Health and Disease written by Lester Packer and published by CRC Press. This book was released on 2023-06-14 with total page 1023 pages. Available in PDF, EPUB and Kindle. Book excerpt: Probes developments and trends in research and clinical applications of vitamin E, discussing its chemistry and biochemistry and natural occurence in nuts, seeds, whole grains and vegetable and fish-liver oils. The book covers new findings on the role of vitamin E as a biological response modifier.

Download or read book Lipid Soluble Antioxidants Biochemistry and Clinical Applications written by ONG and published by Birkhäuser. This book was released on 2013-03-09 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antioxidants inhibit the formation and spread of free radicals which can be damaging in biological systems. Free radicals form in biological systems through metabolism, but it is also realized that exogenous environmental sources, such as radiation, food, and drugs, contribute significantly to the generation of free radicals in biological systems. Being reactive species, free radicals are short-lived and do not travel far from cellular targets. Their concentration in biological systems is very low and is difficult to detect directly by electron spin resonance spectroscopy (ESR). Indirect methods of reactions of radicals with specific biomolecules are also sufficiently sensitive to detect quantitatively their presence. Thus the response of antioxidant defenses which react with radical species, can serve as an indirect measure that free radicals have been formed. Redox-based antioxidants change their oxidation state and antioxidants become free radicals themselves. Often, however, the antioxidants give rise to more persistent free radicals, sometimes owing to delocalization of the lone electron around ring structures (in vitamin E, ubiquinones, and certain carotenes). Persistent free radicals react only rarely and the precursors often can be regenerated in biological systems. In recent years, it is becoming clearer from biochemical studies on how the major lipophilic antioxidants work. Particular attention has been given to vitamin E and quinones found in animal and plant membranes and in carotenoids, for the protection of membranes in lipoprotein systems. Flavonoids form another rich and varied source of natural antioxidants.

Download or read book Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1983 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.

Download or read book The Fat Soluble Vitamins written by H. DeLuca and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first demonstration of the existence of a vitamin and the full recognition of this fact are often attributed to the work of McCollum, who found that a sub stance in butterfat and cod-liver oil was necessary for growth and health of ani mals fed purified diets. It became obvious that an organic substance present in microconcentrations was vital to growth and reproduction of animals. Following the coining of the word vitamine by Funk, McCollum named this fat-soluble sub stance vitamin A. We can, therefore, state that vitamin A was certainly one of the first known vitamins, yet its function and the function of the other fat-soluble vitamins had remained largely unknown until recent years. However, there has been an explosion of investigation and new information in this field, which had remained quiescent for at least two or three decades. It is now obvious that the fat-soluble vitamins function quite differently from their water-soluble counter parts. We have learned that vitamin D functions by virtue of its being converted in the kidney to a hormone that functions to regulate calcium and phosphorus metabolism. This new endocrine system is in the process of being elucidated in detail, and in addition, the medical use of these hormonal forms of vitamin D in the treatment of a variety of metabolic bone diseases has excited the medical com munity.

Download or read book Biology of Vitamin E written by Ruth Porter and published by John Wiley & Sons. This book was released on 2009-09-14 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Novartis Foundation Series is a popular collection of the proceedings from Novartis Foundation Symposia, in which groups of leading scientists from a range of topics across biology, chemistry and medicine assembled to present papers and discuss results. The Novartis Foundation, originally known as the Ciba Foundation, is well known to scientists and clinicians around the world.

Download or read book Vitamin E in Human Health written by Peter Weber and published by Springer. This book was released on 2019-04-01 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vitamin E is a well described and established fat-soluble essential micronutrient and as such has to be provided to the human body on a regular basis in order to avoid deficiency and maintain a healthy status. This is well established and also reviewed in a number of publications. However, a huge body of evidence has accumulated over the last decade, or so, which provides new insights on the mode of action of vitamin E, and the biological role of the tocopherol isomers, and sheds new light on the role of vitamin E in human health. Both fundamental knowledge gain and new data on the role and challenges of vitamin E as an essential micronutrient, including emerging evidence on clinical benefits, will be addressed to put this essential micronutrient in the appropriate perspective. Given this level of new evidence which has emerged over the recent years, a book on vitamin E will put into perspective the concerns which have been raised on vitamin E and which resulted in a misinformation and confusion of the public regarding the importance of vitamin E for human health. This book will reemphasize that Vitamin E is clearly required for human health and its inadequacy leads to increased risk of a variety of diseases. In addition new data of non-communicable diseases (NCD) dependent on vitamin E status show that a lifetime of low intake increases risks of development, severity and complications of NCDs. This text will put the vitamin E case into an up-to-date, science based, applicable real-life perspective and offer pragmatic solutions for its safe and personalized use beyond the various methodological and statistical controversies. The purpose of this book is also to raise awareness not only in the nutrition and medical community, but also in the public media that there are a number of health conditions where an increased intake of vitamin E can be of potential importance. Further this review should also stimulate funding organizations and agencies to increase their support for vitamin E research in order to facilitate the further exploration of the safe and efficacious use of this essential micronutrient.

Download or read book Tocopherol Oxygen and Biomembranes written by Christian De Duve and published by Elsevier Science & Technology. This book was released on 1978 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cellular Antioxidant Defense Mechanisms written by Ching Kuang Chow and published by CRC Press. This book was released on 2019-07-17 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1988, this three-volume set offers a full insight into the immune systems and its response to antioxidants. Carefully compiled and filled with diagrams, references and information this set is recommended for students of immunology and other professionals in their respective fields.

Download or read book Fetal and Neonatal Physiology E Book written by Richard A. Polin and published by Elsevier Health Sciences. This book was released on 2011-08-13 with total page 2202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fetal and Neonatal Physiology, edited by Drs. Polin, Fox, and Abman, focuses on physiologic developments of the fetus and newborn and their impact on the clinical practice of neonatology. A must for practice, this 4th edition brings you the latest information on genetic therapy, intrauterine infections, brain protection and neuroimaging, and much more. Gain a comprehensive, state-of-the-art understanding of normal and abnormal physiology, and its relationship to disease in the fetus and newborn premature infant, from Dr. Richard Polin and other acknowledged worldwide leaders in the field. Understand the implications of fetal and neonatal physiology through chapters devoted to clinical correlation. Apply the latest insights on genetic therapy, intrauterine infections, brain protection and neuroimaging, and much more. Effectively manage the consequences of intrauterine infections with three new chapters covering intrauterine infection and preterm birth, intrauterine infection and brain injury, and intrauterine infection and chronic lung disease.

Download or read book Fetal and Neonatal Physiology written by Richard A. Polin and published by Elsevier Health Sciences. This book was released on 2011-01-01 with total page 2213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fetal and Neonatal Physiology, edited by Drs. Polin, Fox, and Abman, focuses on physiologic developments of the fetus and newborn and their impact on the clinical practice of neonatology. A must for practice, this 4th edition brings you the latest information on genetic therapy, intrauterine infections, brain protection and neuroimaging, and much more. You'll also have easy access to the complete contents and illustrations online at expertconsult.com. Gain a comprehensive, state-of-the-art understanding of normal and abnormal physiology, and its relationship to disease in the fetus and newborn premature infant, from Dr. Richard Polin and other acknowledged worldwide leaders in the field. Understand the implications of fetal and neonatal physiology through chapters devoted to clinical correlation. Apply the latest insights on genetic therapy, intrauterine infections, brain protection and neuroimaging, and much more. Effectively manage the consequences of intrauterine infections with three new chapters covering intrauterine infection and preterm birth, intrauterine infection and brain injury, and intrauterine infection and chronic lung disease. Access the complete contents and illustrations online at expertconsult.com - fully searchable! Get the latest developments and a full understanding of the distinct physiology of the fetus and newborn so you can treat and manage sick newborns and preemies.

Download or read book Nutritional Elements and Clinical Biochemistry written by Marge A. Brewster and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The important role that the nutritional status exerts in determining the course of life from birth to death in the human being and especially its impact in disease states is only par tially appreciated at this time. Nutritional deficiencies are usually considered to be major problems only in under-privileged or developing populations, except for those occurring in specific diseases. This attitude is incorrect as indicated by reports of Bestrian et al (1974, 1976) and Merritt and Suskin (1979) and others who found evidence of nutritional depletion in as much as 50% of the patients in varied groups of hospitalized patients in the United States. Other studies, some of which are included in this book, emphasized the existence of deficiencies of certain specific nutrients. Despite evidence of nutritional deficiencies occurring more frequently than previously appreciated, there is no well established protocol of laboratory studies that the clinical chemist or scientist should provide to help the physician detect lack of essential nutrients before extensive and possibly irreparable damage has occurred to the individual patient. Considerable research data are needed to determine the best biologic material (i.e., erythrocytes, leucocytes, plasma, serum, urine, cerebrospinal fluid, lymph) for analysis to determine accurately at an early stage metabolic deficiencies due to a specific nutritional element. Improved techniques for analysis of key metabolites and nutrients are available in the research labora tory and many of them can be adapted to the clinical laboratory.

Download or read book Antioxidant Nutrients and Immune Functions written by Adrianne Bendich and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detenmnation of optimal nutritional status has traditionally been based upon generalized parameters such as weight gain and body fat levels. Vitamin and mineral requirements were often related to the intakes needed to prevent overt signs of deficiency diseases such as beriberi or scurvy. However, in the past decade or so, there have been intensive investigations to determine the subtle changes in physiological functions associated with marginal micronutrient intakes. There is a growing consensus that immune system activities are very sensitive indicators of micronutrient status. During this decade, there has also been a rapid expansion of research in the role of free radicals and antioxidants in the major chronic diseases which afflict mankind( i.e. cancer, cardiovascular disease,and autoimmune disease). The main function of antioxidant nutrients in an appropriate diet is the prevention of oxidative damage to cells and their physiological functions. Antioxidant nutrients counteract free radicals and damaging oxidative actions on cell membranes. Since the cells of the immune system are rapidly differentiating and proliferating, such dividing and transforming cells are particularly susceptible to damage by oxidation. The interactions of antioxidant nutrition and immune system activities and disease resistance are therefore logical areas for research. Thus, the objective of this symposium was to bring together the leading investigators who have examined the immunological effects of dietary essential nutrients which share the capacity to act as antioxidants.

Download or read book The Queen of Fats written by Susan Allport and published by Univ of California Press. This book was released on 2006-09-12 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: A nutritional whodunit that takes readers from Greenland to Africa to Israel, The Queen of Fats gives a fascinating account of how we have become deficient in a nutrient that is essential for good health: the fatty acids known as omega-3s. Writing with intelligence and passion, Susan Allport tells the story of these vital fats, which are abundant in greens and fish, among other foods. She describes how scientists came to understand the role of omega-3s in our diet, why commercial processing has removed them from the food we eat, and what the tremendous consequences have been for our health. In many Western countries, epidemics of inflammatory diseases and metabolic disorders have been traced to omega-3 deficiencies. The Queen of Fats provides information for every consumer who wants to reduce the risk of heart disease, cancer, arthritis, and obesity and to improve brain function and overall health. This important and compelling investigation into the discovery, science, and politics of omega-3s will transform our thinking about what we should be eating. * Includes steps you can take to add omega-3s to your diet * Shows why eating fish is not the only way, or even the best way, to increase omega-3s. * Provides a new way to understand the complex advice about the role and importance of fats in the body * Explains how and why the food industry has created a deadly imbalance of fats in our foods * Shows how omega-3s can be reintroduced to our diet through food enrichment and changes in the feeding of livestock

Download or read book Free Radicals in Diagnostic Medicine written by Donald Armstrong and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: An International Syaposiua on Free Radicals in Diagnostic Medicine was co-sponsored by the state University of New York at Buffalo, Roswell Park Cancer Institute, and the Upstate NY Section of the American Association of Clinical Chemistry. The theme was "A Systems Approach To Laboratory Technology, Clinical Correlations And Antioxidant Therapy." The symposium was held on October 7-8, 1993 at the Hyatt Hotel and on October 9 at Roswell Park Cancer Institute, Buffalo, New York. This proceedings volume contains chapters from platform presentations, poster sessions and from invited special lectures in the areas of basic science, clinical applications and efficacy of treatment. A Special Lecture on the relevance of free radical analysis to clinical medicine was presented by Professor Kunio Yagi of Japan. The Yagi procedure to measure thiobarbituric acid (TBA) reaction reflects the amount of reactive substances, lipid peroxides and aldehydes, in the sample. For example, normal subjects will have less than 4 nmol/ml of serum lipid peroxides, while a person with diabetes generally has equal or greater than 5.0 and a diabetic person with vascular complications often exceeds 7.5 nmol/ml. Serum TBA is a clinically important measure that relates to aging, gender and estrogen as an antioxidant, in the prognosis for vascular disorders, and in pathological conditions relative to the amount of lipid peroxidation. The BASIC SCIENCES portion of the program examined: "Mechanisms of Action, Pathophysiology and Laboratory Tests" in six presentations.

Download or read book Antioxidants and Disease Prevention written by Harinder Garewal and published by CRC Press. This book was released on 2024-11-01 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of antioxidants and other nutritional agents in disease prevention is a widely discussed subject, attracting attention from professionals in all areas of medicine. This often-debated and rapidly evolving area of medicine could have important implications for how diseases are treated.

Download or read book Photochemical and Photobiological Reviews written by Kendric C. Smith and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goals of the science of photobiology can be divided into four categories: to develop (I) ways to optimize the beneficial effects of light on man and his environment, (2) methods to protect organisms, including man, from the detrimental effects of light, (3) photochemical tools for use in studies of life processes, and (4) photochemical therapies in medicine. To achieve these goals will require the knowledgeable collaboration of biologists, chemists, engineers, mathematicians, physicians, and physicists; because photobiology is a truly multidisciplinary science. While a multidis ciplinary science is more intellectually demanding, it also has a greater potential for unexpected breakthroughs that can occur when data from several areas of science are integrated into new concepts for theoretical or practical use. Photochemical and Photobiological Reviews continues to provide in depth coverage of the many specialty areas of photobiology. It is hoped that these reviews will provide an important service to the younger scientists in the field and to senior scientists in related fields, because they provide a ready access to the recent literature in the field, and more importantly, they frequently offer a critical evaluation of the direction that the field is taking, or suggest a redirection when appropriate. Since it is important that this review series remain responsive to the needs of photochemists and photobiologists, the Editor would value com ments and suggestions from its readers.