in the median eminence and posterior pituitary the accumulation of dopa appears to occur primarily in da nerves since : ( 1 ) the rate of synthesis of norepinephrine ( ne ) , as estimated from the alpha-methyltyrosine-induced decline of catecholamines , accounts for less than 10 % of total catecholamine synthesis in these two brain regions ;
C0013023
dopa
C0007412
catecholamines