levels of excitatory and inhibitory neurotransmitter amino acids [ gamma-aminobutyric acid ( gaba ) , glutamate , aspartate , glycine , taurine ] and levels of nonneurotransmitter amino acids ( asparagine , glutamine , alanine , threonine , serine ) were determined at 5 min , 4 h , and 24 h posttrauma .
C0002520
amino
C0001898
alanine