Matched description: … There is increased activity of the inhibitory gamma-aminobutyric acid (GABA) system, and the energy supply ... of these inborn errors of metabolism are associated with urea cycle disorders or impairment to amino acid …
Matched description: … extent phenylalanine, which are both converted to 4-hydroxyphenylacetic acid by intestinal bacteria, ... More specifically, p-Cresol is derived from the breakdown of the amino acid tyrosine, and to a more limited …