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Splanchnic uptake and metabolism contributes significantly to the differences in flux seen between the intravenous and intragastric ingestion of certain indispensable amino acids.
This is the third in a series of studies designed to increase the investigators knowledge of the metabolism of two indispensable amino acids, threonine and lysine, by the splanchnic bed. In the initial two studies the investigators established the neonatal parenteral requirement of threonine and lysine. In the current study, the investigators will be examining the differences in uptake and metabolism of threonine and lysine across the splanchnic bed.
We propose that we will see a smaller amount of enterally fed isotopes reach the plasma as compared to the amount in plasma from the parenterally delivered isotopes. We also believe that the amount of enterally delivered threonine isotope that reaches the plasma will be significantly less than the amount of enterally fed lysine isotope.
Allocation: Randomized, Control: Uncontrolled, Endpoint Classification: Bio-availability Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Basic Science
The Hospital for Sick Children
The Hospital for Sick Children
Published on BioPortfolio: 2014-08-27T03:17:17-0400
The daily requirement of threonine, an essential amino acid, will be evaluated in healthy adult males and in adult males with Crohn's Disease or ulcerative colitis using the indicator amin...
This sub-study aims to assess the effect and breakdown of lysine administration, specifically examining whether it leads to increased plasma 2-AAA in healthy humans.
The purpose of this study is to establish the parenteral lysine requirements for neonates.
Threonine is an indispensable amino acid, which is required for human growth and protein synthesis. Deficiency in threonine can affect small intestine growth due to its structural importan...
The purpose of this study is to determine the toxicity, tolerability and safety of single ascending doses of GMC-252-L-Lysine Salt in healthy male subjects.
The objective of this study was to evaluate whether or not the use of a prebiotic yeast cell wall (YCW) affects threonine requirements in starter broilers. Two hundred and forty 1-d-old Ross 308 broil...
Lysine is the first limiting amino acid in cereal proteins and is found mainly in animal-derived products. Current Dietary Reference Intake (DRI) recommendations extrapolate lysine requirements during...
We conducted 2 experiments to determine lysine loss from 2 lipid-coated lysine products after mixing with silage. In our first experiment, we mixed 2 lipid-coated lysine products, crystalline lysine o...
L-Lysine is widely used as a nutrition supplement in feed, food, and beverage industries as well as a chemical intermediate. At present, great efforts are made to further decrease the cost of lysine t...
Lysine acetylation has emerged as a key post-translational modification found at many sites throughout the cell. It plays an important role in epigenetic processes, and more generally in the regulatio...
An enzyme that catalyzes the reduction of aspartic beta-semialdehyde to homoserine, which is the branch point in biosynthesis of methionine, lysine, threonine and leucine from aspartic acid. EC 22.214.171.124.
An enzyme that activates lysine with its specific transfer RNA. EC 126.96.36.199.
A pyridoxal-phosphate protein that catalyzes the deamination of THREONINE to 2-ketobutyrate and AMMONIA. The role of this enzyme can be biosynthetic or biodegradative. In the former role it supplies 2-ketobutyrate required for ISOLEUCINE biosynthesis, while in the latter it is only involved in the breakdown of threonine to supply energy. This enzyme was formerly listed as EC 188.8.131.52.
Healthy People Programs are a set of health objectives to be used by governments, communities, professional organizations, and others to help develop programs to improve health. It builds on initiatives pursued over the past two decades beginning with the 1979 Surgeon General's Report, Healthy People, Healthy People 2000: National Health Promotion and Disease Prevention Objectives, and Healthy People 2010. These established national health objectives and served as the basis for the development of state and community plans. These are administered by the Office of Disease Prevention and Health Promotion (ODPHP). Similar programs are conducted by other national governments.
An enzyme that activates threonine with its specific transfer RNA. EC 184.108.40.206.
Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...