in untreated rats ( controls ) both catecholamines were concentrated in the gastric muscle but norepinephrine levels were 6-8 times higher ( corpus , dopamine 35 +/- 7 ng . g-1 , norepinephrine 265 +/- 50 ng . g-1 , mean +/- se , n = 6 ) .
C0007412
catecholamines
C0013030
dopamine