This causes glutamate concentration to be several times higher in the blood than in the brain; in turn, the body must act to maintain equilibrium between the two concentrations by pumping the glutamate out of the bloodstream and into the neurons of the brain.
Tako ostajajo v možganih, dokler se ne razgradijo, a ko se dovolj nakopičijo, tvorijo obloge, ki so za nevrone strupene.