this in vivo approach ultilized the observed cytotoxic effects of 6-hydroxydopamine on these catecholamine-containing terminals and the protective effects of simultaneous treatment with catecholamines ( dopamine , norepinephrine , and epinephrine ) , their 3-0-methylated derivatives ( metanephrine and normetanephrine ) , and catechol acids ( 3,4-dihydroxymandelic acid and 2 , 4 , 5-trihydroxymandelic acid ) .
C0007412
catecholamines
C0028351
norepinephrine