Metabolism of amino acids in protein-calorie-deficient rats

Lipid supplementation of laying hen diets deficient in protein and sulphur amino acids

The metabolism of aromatic amino acids in leukemic rats.

Previous reports from this laboratory have shown that the concentrations of some of the circulating free amino acids in the plasma of leukemic patients were higher when compared with values obtained from normal individuals (6, 20). In particular, it was found that the leukemic patients exhibited abnormally elevated values for valine, phenylalanine, tyrosine, isoleucine, and glutamic acid. To in...

Modulations of muscle protein metabolism by branched-chain amino acids in normal and muscle-atrophying rats.

It has been shown that BCAAs, especially leucine, regulate skeletal muscle protein metabolism. However, it remains unclear how BCAAs regulate muscle protein metabolism and lead to anabolism in vivo. We examined muscle protein synthesis rate and breakdown rate simultaneously during BCAA infusion in muscle atrophy models as well as in normal healthy rats. Corticosterone-treated rats and hindlimb-...

The Metabolism of Amino Acids

It was shown by Seth and Luck (1) that the intestinal absorption of glycine and alanine by rabbits was followed by pronounced aminoacidemia. Other amino acids when administered in similar amounts provoked smaller increases in the amino nitrogen content of the blood. Glutamic acid and aspartic acid were absorbed with but a slight aminoacidemia. The question then arose as to whether these strikin...

Metabolism and Nutrition: Amino Acids

In the United States, guinea fowl (GF) production has continued to increase due to increased demand and consumption of specialty meats . However, there is lack of information on optimum nutrients, such as amino acids, that would support optimum growth performance and minimize production cost of the GF . The amino acid methionine is most limiting in poultry feeding while methionine and cysteine ...