Metabolism of Aromatic Amino Acids in Plants I

Metabolism of aromatic amino acids and amines.

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...

Metabolism and Nutrition I: Amino Acids

The intestinal peptide transporter, PepT1, is known to be regulated by a variety of dietary factors, including protein quantity, protein quality, and feed intake. The objective of this experiment was to determine the effect of dietary protein composition on mRNA abundance of chicken PepT1. From day of hatch to day 8, chicks from 2 genetic lines (A and B, selected under different dietary conditi...

4 Aromatic Amino Acids in the Brain

This chapter describes the aromatic L‐amino acids tryptophan and tyrosine and the effects on tyrosine metabolism of phenylalanine. Tryptophan and phenylalanine are essential amino acids and must ultimately be derived from dietary proteins; tyrosine is obtained both from dietary proteins and from the hydroxylation of phenylalanine by phenylalanine hydroxylase (PAH). The proportions of dietary tr...

Sulfur Metabolism and Sulfur-Containing Amino Acids: I- Molecular Effectors

The biology of the macro-element sulfur (S) is attracting an ever growing attention concerning cell physiology and human health. Sulfur metabolism works at the interplay between genetics and epigenetic as well as in the maintain of cell redox homeostasis. Indeed, unbalanced levels of S compounds in the body are actually under investigation as vulnerability factors and/or indicators of impaired ...