Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids


Book Description

This volume is the newest release in the authoritative series of quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people. Dietary Reference Intakes (DRIs) is the newest framework for an expanded approach developed by U.S. and Canadian scientists. This book discusses in detail the role of vitamin C, vitamin E, selenium, and the carotenoids in human physiology and health. For each nutrient the committee presents what is known about how it functions in the human body, which factors may affect how it works, and how the nutrient may be related to chronic disease. Dietary Reference Intakes provides reference intakes, such as Recommended Dietary Allowances (RDAs), for use in planning nutritionally adequate diets for different groups based on age and gender, along with a new reference intake, the Tolerable Upper Intake Level (UL), designed to assist an individual in knowing how much is "too much" of a nutrient.




Retinoids and Carotenoids in Dermatology


Book Description

This up-to-date reference describes how retinoids and carotenoids function in the skin and how they can be utilized to prevent and treat a wide variety of skin diseases, as well as advance biomedical research in relation to cancer treatment and immunology. Providing an in-depth update on the pharmacology, pharmacodynamics, and new applications of




Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc


Book Description

This volume is the newest release in the authoritative series issued by the National Academy of Sciences on dietary reference intakes (DRIs). This series provides recommended intakes, such as Recommended Dietary Allowances (RDAs), for use in planning nutritionally adequate diets for individuals based on age and gender. In addition, a new reference intake, the Tolerable Upper Intake Level (UL), has also been established to assist an individual in knowing how much is "too much" of a nutrient. Based on the Institute of Medicine's review of the scientific literature regarding dietary micronutrients, recommendations have been formulated regarding vitamins A and K, iron, iodine, chromium, copper, manganese, molybdenum, zinc, and other potentially beneficial trace elements such as boron to determine the roles, if any, they play in health. The book also: Reviews selected components of food that may influence the bioavailability of these compounds. Develops estimates of dietary intake of these compounds that are compatible with good nutrition throughout the life span and that may decrease risk of chronic disease where data indicate they play a role. Determines Tolerable Upper Intake levels for each nutrient reviewed where adequate scientific data are available in specific population subgroups. Identifies research needed to improve knowledge of the role of these micronutrients in human health. This book will be important to professionals in nutrition research and education.




Carotenoids in Health and Disease


Book Description

The first source to collect the latest evidence linking carotenoids to human health and disease, this stimulating reference studies the role of carotenoids in the prevention of chronic disease and reviews breakthrough studies from more than 40 field authorities on the latest research. The book reveals the most recent findings regarding the use of c




Carotenoids: Structure and Function in the Human Body


Book Description

Plants produce chemicals as part of their normal metabolic activities. These include primary metabolites found in all plants, such as sugars and fats, as well as secondary metabolites, which can have therapeutic effects in humans and be refined to produce drugs. Plants synthesize a bewildering variety of phytochemicals, but most are derivatives of a few biochemical motifs. Numerous herbal-derived substances have been evaluated for their therapeutic potential. These include alkaloids, coumarins, saponins, plant pigments and flavonoids. Flavonoids, carotenoids and anthocyanins are probably the best known of these substances due to their antioxidant properties. Carotenoids: Structure and Function in the Human Body presents comprehensive coverage of carotenoids. The text covers the scientific literature and clinical significance of this organic pigment, with an emphasis on its therapeutic potential. The authors approach carotenoids from a range of perspectives, from their structural and physicochemical properties to their distribution in nature, interaction with the human metabolism, and use as a coloring agent in various products. The intake, metabolism and secretion of anthocyanins in the human body are covered in-depth, as are the biosynthetic pathways through which these compounds are synthesized in the natural system. Factors affecting stability and extraction are listed, and health-related uses and biological activities are covered in great detail. Present and future trends in carotenoid research are also presented. This book provides a solid background in carotenoids for researchers and professionals in food science, food technology, nutrition, biology, chemistry and medical sciences.




Carotenoids and Human Health


Book Description

Carotenoids and Human Health provides an introduction to food sources and metabolism. Written by experts in their fields and including the most up-to-date information, this volume serves as an in-depth guide to studies that have been performed in humans and observations that have been made in population level assessments. Special emphasis is given to associations with disease, as well as the importance of carotenoids internationally, specifically as a source of vitamin A for the world. Comprehensive and easy to use, Carotenoids and Human Health is a very useful resource for nutritionists, registered dieticians, medical students, and graduate students.




Cosmetic Dermatology


Book Description

Back for a new edition, Zoe Draelos' outstanding resource to cosmetic dermatology again provides a highly-illustrated, clinical guide to the full range of cosmetic skin treatments. Bringing together experts from research, industry, surgery and practice, it is structured in four distinct parts for easy navigation by the busy clinician: Basic Concepts - giving an overview of the physiology pertinent to cosmetic dermatology and the delivery systems by which treatments can take effect; Hygiene Products - evaluating cleansing and moisturising products; Adornment - looking at aesthetic techniques such as cosmetics, nail protheses and hair treatment; Antiaging - ie, injectables, resurfacing and skin contouring techniques, and the rapidly growing area of Cosmeceuticals. With over 300 high-quality images and key summary boxes throughout, this new edition incorporates the newest procedural innovations in this rapidly developing field. Perfect for all dermatologists, especially those specialising in cosmetic dermatology and whether hospital-based or in private practice, it provides the complete cosmetic regimen for your patients and will be an indispensable tool to consult over and over again.




Vitamin A and Carotenoids


Book Description

Vitamin A has an important role to play in vision, bone growth, reproduction, cell division, and cell differentiation. With the focus on Vitamin A and Carotenoids, this book includes the latest research in these areas and starts with an overview putting the compounds in context with other vitamins, supplementation and discussing the importance of beta-carotene. Details of the chemistry, structure and biochemistry of the compounds begins with nomenclature followed by information on encapsulation, thermal degradation and occurrence. Developments in analytical and bioanalytical techniques concerning these compounds in plant, milk and human tissue systems are covered in detail. Finally, the book covers the extensive functions and effects of Vitamin A on eg developmental growth, immune function, cancer risk, the brain and lungs as well as vision. Delivering high quality information, this book will be of benefit to anyone researching this area of health and nutritional science. It will bridge scientific disciplines so that the information is more meaningful and applicable to health in general. Part of a series of books, it is specifically designed for chemists, analytical scientists, forensic scientists, food scientists, dieticians and health care workers, nutritionists, toxicologists and research academics. Due to its interdisciplinary nature it could also be suitable for lecturers and teachers in food and nutritional sciences and as a college or university library reference guide.




Laboratory Assessment of Vitamin Status


Book Description

Laboratory Assessment of Vitamin Status provides a comprehensive understanding of the limitations of commonly used approaches used for the evaluation of vitamin status, reducing harm in the general health setting. It outlines the application of 'Best Practice' approaches to the evaluation of vitamin status, giving physicians and other healthcare professionals the opportunity to make evidence-based interventions. Nearly every metabolic and developmental pathway in the human body has a dependency on at least one micronutrient. Currently, the clinical utility of approaches taken by laboratories for the assessment of vitamin status is generally poorly understood, missing the opportunity to diagnosis vitamin deficiencies. This essential reference gives clinical and biomedical scientists an understanding of the limitations of commonly used approaches to the evaluation of vitamin status in the general health setting through change in practice. Nutritionists and dietitians gain an understanding of more sophisticated markers of vitamin status. - Describes specialist assays in sufficient detail to enable laboratories to replicate what is being performed by expert groups - Provides detailed information that supports laboratories in the setting up of methods for the evaluation of vitamin status - Informs laboratories looking for third party providers of specialist investigations - Provides an essential overview of reference ranges for each vitamin




The Fat-Soluble Vitamins


Book Description

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.