( 1 ) the inhibition of spontaneous action potentials in guinea pig cerebellar cortex slices by gaba , glycine , taurine and beta-alanine is maintained when c1- in the superfusion medium is almost completely replaced by no3- or i- ( 'permeant ' anion ) , but the inhibition decreases in magnitude with repeated application of the amino acid .
C0021966
i
C0003075
anion