the fate of catecholamines released in rat kidneys was examined by microinjecting tritiated norepinephrine ( ne ) , normetanephrine ( nmn ) , dopamine ( d ) and 3-methoxytyramine ( 3mt ) into proximal and distal tubule lumina and peritubular capillaries .
C0028351
norepinephrine
C0028385
normetanephrine