the norepinephrine ( ne ) , epinephrine ( epi ) , dopamine ( da ) and serotonin ( 5-ht ) contents were measured radioenzymatically in seven anatomically defined regions ( frontal cerebral cortex , hippocampus , hypothalamus , midbrain , pons-medulla oblongata , cerebellum and spinal cord ) in adult normal animals , after treatment with the tryptophan hydroxylase inhibitor p-chlorophenylalanine ( p-cpa ) , and after the intraventricular administration of either 6-hydroxydopamine ( 6-ohda ) or 5,7-dihydroxytryptamine ( 5,7-dht ) .
C0028351
norepinephrine
C0014563
epinephrine