synaptosomal membrane potential , as estimated from synaptosomal accumulation of the permeant cation [ 3h ] tetraphenylphosphonium , was not affected by n-alcohols in the concentrations used in this study , suggesting that neither the inhibitory or enhancing effects of these n-alcohols were attributable to changes in trans-synaptosomal membrane ion gradients .
C0007447
cation
C0022023
ion