furthermore , the same doses of potassium cyanide increased by 50-150 % the levels of brain neutral and aromatic amino acids such as leucine , isoleucine , tyrosine , and phenylalanine , while the levels of acidic amino acid such as taurine , glutamate , and aspartate did not change . alpha-ketoglutarate also significantly inhibited the increase of the neutral and aromatic amino acid levels in brain .
C0031453
phenylalanine
C0301713
aromatic amino acid