Amino Acid Needs for Early Growth and Development1,2

The Journal of Nutrition;  June 1, 2004 ;     700+ words ......data exist on amino acid needs in infants...until recently, amino acid requirements...determined using nitrogen balance. The advent of the indicator amino acid oxidation (IAAO...until recently, amino acid requirements...determined using nitrogen ...

Amino Acid Adequacy in Pathophysiological States1,2

The Journal of Nutrition;  June 1, 2004 ;     700+ words ...ABSTRACT Amino acid utilization and, therefore...In disease states, the amino acid composition of amino acids...adequacy of the administered amino acid mix. Maintenance of a positive nitrogen balance and growth is less important...system, and injured sites. ...

Recent advances in the understanding of amino acid regulation of gene...

The Journal of Nutrition;  June 1, 2003 ;     700+ words ......mechanisms involved in the amino acid regulation of gene...expression. Regulation of amino acid metabolism and homeostasis...precisely regulate amino acid homeostasis while...characteristics of amino acid metabolism: 1) multicellular...important dispensable amino ...

Qualitative manipulation of amino acid supply during total parenteral...

JPEN, Journal of Parenteral and Enteral Nutrition;  March 1, 2002 ;     700+ words ......manipulation of amino acid mixture could...same standard amino acid solution (Vintene...infusion of each amino acid and its plasma...respectively). Daily nitrogen balance and urinary excretion...measures were made, amino acid variations except...group. ...

Epinephrine transiently increase amino acid disappearance to lower amino...

JPEN, Journal of Parenteral and Enteral Nutrition;  September 1, 1999 ;     700+ words ......Infusion of epinephrine decreases plasma amino acid concentrations. However, the mechanism...normal healthy adults. The essential amino acid tracers L-[1-^sup 13^C] leucine and L...and blood samples obtained to determine amino acid rates of appearance and disappearance...

Amino acid pharmacokinetics and safety assessment1

The Journal of Nutrition;  June 1, 2003 ;     700+ words ...ABSTRACT Tracer kinetic studies of amino acid metabolism during periods of high amino acid intake should allow insights into adaptive or maladaptive regulatory mechanisms controlling amino acid catabolic or disposal events before clinically...

Molecular and Functional Characterization of a Family of Amino Acid...

Plant Physiology;  October 1, 2004 ;     700+ words ...More than 50 distinct amino acid transporter genes have been identified in the genome...can be divided into two major superfamilies: the amino acid transporter family and the amino acid polyamine choline transporter family. Currently...

Branched-chain amino acid requirements in school-aged children determined...

The Journal of Nutrition;  November 1, 2003 ;     700+ words ......children are based on nitrogen balance studies that have...lower estimates of amino acid requirements that...consistently the amino acid requirements in...when assessing nitrogen balance. There are also...measurement of nitrogen balance in the ...

ANT(1), an aromatic and neutral amino acid tansporter in Arabidopsis

Plant Physiology;  April 1, 2001 ;     700+ words ...A new amino acid transporter was identified from the...cDNAs by expressing the cDNA in a yeast amino acid transport mutant. Transport analysis...Phylogenetic comparisons with other known amino acid transporters in plants suggests that...

Oral and intravenous tracer protocols of the indicator amino acid...

The Journal of Nutrition;  August 1, 2002 ;     700+ words ......the tracer affects amino acid requirement estimates...administration on amino acid kinetics has been...isotope infusion on amino acid (tryptophan) requirement...in humans in which amino acid requirement estimates...using the indicator amino acid oxidation ...

The Indicator Amino Acid Oxidation Method Identified Limiting Amino Acids...

The Journal of Nutrition;  May 1, 2007 ;     700+ words ...Abstract Recent studies using the indicator amino acid oxidation (IAAO) technique in TPN-fed...been instrumental in defining parenteral amino acid requirements. None of the commercial...whether the oxidation of an indicator amino acid would decline with the addition of amino...

Amino acid composition of the fetal pig

The Journal of Nutrition;  May 1, 1999 ;     700+ words ...Amino Acid Composition of the Fetal Pig1 ABSTRACT Amino acid composition and accretion were determined in fetal pigs...of uterine arteriovenous concentrations. Nitrogen and amino acid accretion in fetal pigs increased more rapidly with gestation...

Threonine deprivation rapidly activates the system A amino acid...

The Journal of Nutrition;  July 1, 2003 ;     700+ words ......recognition of essential (indispensable) amino acid deficiency by changing their feeding...20 min, yet the cellular mechanisms of amino acid sensation in eukaryotes are poorly understood...analog in birds likely houses the in vivo amino acid chemosensor. Because amino ...

The mechanism for transcriptional activation of the human ATA2 transporter...

The Journal of Nutrition;  October 1, 2002 ;     700+ words ......of the Human ATA2 Transporter Gene by Amino Acid Deprivation is Different than That for Asparagine Synthetase1 ABSTRACT After amino acid deprivation, the mRNA content for both...regulatory characteristics with those of AS. Amino acid limitation was initiated by incubation...

Protein and amino acid requirements and the composition of complementary...

The Journal of Nutrition;  September 1, 2003 ;     700+ words ......weight-specific protein and amino acid requirement that results...requirements. The amino acid modeling implies that...protein deposition and nitrogen balance will be the primary...of the protein and amino acid requirements of children...topic of protein and ...