[Anomaly in the neurotransmitter amino acids in amyotrophic lateral sclerosis: a therapeutic application].

Although the cause of amyotrophic lateral sclerosis remains unknown, the excitatory amino acids may be involved in its pathogenesis. Glutamate level analysis shows a differential distribution of the amino acids. One of the therapeutic methods consists of reinforcing the inhibitory amino acid activity using L-threonine which has been shown to improve some symptoms and signs of ALS.