the increased catecholamine synthesis in the poststimulation period can be accounted for by increased tyrosine hydroxylation since : 1 ) the synthesis of [ 14c ] catecholamines from [ 14c ] dopa was not increased by k+ depolarization and 2 ) k+ depolarization led to a 71 % increase in the accumulation of [ 3h ] dopa newly synthesized from [ 3h ] tyrosine in the presence of the decarboxylase inhibitor , brocresine .
C0007412
catecholamines
C0013023
dopa