use of tetrodotoxin to suppress the release of amino acids from neurons in slices caused by the joint action of protoveratrine and ouabain ( the latter being added to diminish reuptake of amino acids ) , it was shown that the major pools of glutamate , aspartate , glycine , serine and probably gamma-aminobutyrate are in the neurons .
C0002520
amino acids
C0017890
glycine