Protein Metabolism In Protein Depleted Infants

Other chapters focus on the nutritional importance of nonprotein nitrogen; the role of essential and nonessential amino acids in neonatal nutrition; the significance of nucleic acids, nucleotides, and related compounds in infants; and the role of tumor necrosis factor in protein metabolism.

Protein plays a vital role in growth and development and is able to 'program' healthy growth by influencing gene methylation for positive long-term health outcomes. The understanding of these mechanisms is critical to support and improve the health of future generations in both the short and long term.The first part of this book reviews the role of hydrolyzed proteins in infant feeding and the evidence-based benefits of their use in non-breastfed infants at risk of allergy and in infants with functional gastrointestinal disorders. The second part focuses on human milk and its potential alternatives in the feeding of healthy term infants. The final section is dedicated to preterm infants, their nutrition needs, and physiological capacities to ingest adequate amounts of protein for appropriate growth and development. Presenting the latest scientific findings on protein in early nutrition, this publication provides essential reading for pediatricians and researchers alike.

Mammalian Protein Metabolism, Volume II focuses on the processes, methodologies, and reactions involved in mammalian protein metabolism, including toxicities, amino acid imbalance, and digestion and absorption. The selection first offers information on the nutritive value of dietary proteins, amino acid toxicities and imbalances, and protein requirements. Discussions focus on the protein requirements of adults, infants, and children, amino acid requirements, protein requirements in pregnancy, amino acid imbalance, mixed diets, and nutritive value and maintenance. The text then ponders on protein metabolism and requirements in pregnancy and lactation and protein metabolism and requirements in the newborn. The publication examines protein metabolism and requirements in the elderly; anomalies of amino acid metabolism; and physical injury and its effects on protein metabolism. Topics include general disturbance of protein metabolism following physical injury, nature of inflammatory reaction, acquired disturbances of amino acid metabolism, plasma proteins, nitrogen balance, digestion and absorption, and protein withdrawal. The text then elaborates on protein metabolism and tumor growth, experimental protein-calorie deficiency, and the clinical aspects of protein malnutrition. The selection is a dependable source of data for researchers interested in mammalian protein metabolism.

Abstract: A reference text for clinicians and nutrition researchers presents the proceedings of a recent symposium that focused on energy and protein requirements during infant development. The text includes 11 authoritative, critical reviews and 4 technic al discussions, prepared by experts in the respective fields of study, that have been grouped among 4 principal themes: (1) energy needs during infancy (including a model to explain metabolic rate variability); (2) protein requirements during infancy (covering the needs of both term and preterm infants, and the types of proteins and growth modulators in human milk); (3) protein-energy interactions, including their assessments and mechanisms; and (4) problems in meeting the energy and protein requirements of infants (including amino acid needs and glucose and lipid metabolism in parenteral feeding of infants). A discussion paper is appended to each of these 4 sections. Tabular data and illustrations are provided throughout the text, and literature citations are appended to each of the reviews.

For the first time, an entire publication has been dedicated to providing a critical review of the identification and analysis of the milk specific proteins such as lactalbumin, lactoferrin and casein; the non-milk specific proteins such as plasma and membrane proteins; and the minor nitrogen-containing components such as enzymes, hormones, and growth factors. Biological roles, whether nutritional, endocrinological or immunological, of the specific nitrogen compounds in mammary milk production and/or growth and development of the breast-fed infant are also presented. Identification of the molecular weight compounds that have led to questions about their function in milk and their inclusion in modern infant formulas is thoroughly discussed and of great value to scientists in sub-specialties of biochemistry, nutrition, physiology and immunology, as well as to pediatric practitioners with primary interests in the infant food industry, academia, or clinical nutrition. The thoroughness of each chapter, often providing an historical panorama of the specific aspect of milk composition, makes this book useful for both the uninitiated and expert audiences who are interested in advancing their knowledge of human milk biochemistry and its physiological significance to the recipient infant.

In this volume, world-renowned specialists review the latest scientific information and recommendations for protein and energy requirements of infants and children. New data obtained with the latest techniques show significantly lower requirements for both energy and protein than previously thought. This will have far-reaching implications for nutrition and health, not only during infancy and childhood, but also for long-term health outcomes, such as obesity and related disorders. Indeed for the latest generation of some infant formulas, many of the new nutrition concepts presented in this volume (especially those concerning protein level and quality) have already been translated into clinically tested products that are coming ever closer to the "gold standard" human milk, not only in terms of composition, but also of outcome. The important public health implications of the information reviewed in this volume provide essential reading for pediatricians, clinical investigators and health workers engaged in the prevention of nutrition-related disorders.