two days after an iv infusion of norepinephrine ( ne ) ( 4 micrograms.kg-1.min-1 x 60 min ) in rabbits , patchy myocardial damage in frozen cross sections of right and left papillary muscles was associated with loss of staining for alkaline phosphatase ( alp ) , an enzyme present in normal capillary endothelium , whereas a regular pattern of staining was observed in control normal muscles .
C0027061
myocardial
C0030352
papillary muscles