Skønt pathogenesen ved ALS ikke er helt belyst, er der dog en formodning om, at glutaminat (den primære excitatoriske neurotransmitter i centralnervesystemet) spiller en stor rolle for celledød ved sygdommen.
Although the pathogenesis of ALS is not completely elucidated, it is suggested that glutamate (the primary excitatory neurotransmitter in the central nervous system) plays a role for cell death in the disease.