in these microdissected regions , the catecholamines noradrenaline ( na ) and dopamine ( da ) , the indoleamine 5-hydroxytryptamine ( 5-ht ; serotonin ) , as well as some of their major metabolites ( 3-methoxy-4-hydroxyphenylglycol ; 3,4-dihydroxyphenylacetic acid ; homovanillic acid ; 3-methoxytyramine ; 5-hydroxy-1-tryptophan ; and 5-hydroxyindole-3-acetic acid ) were assayed by using high-performance liquid chromatography ( hplc ) with electrochemical detection .
C0007412
catecholamines
C0028351
noradrenaline