in the 6 patients with the longest tolerance times for forearm ischemic pain ( all in group a ) and in the 5 having the shortest tolerance times ( all in group b ) , plasma levels of beta endorphin , met-enkephalin , noradrenaline and adrenaline were similar during both the basal state and the induction of forearm ischemic pain .
C0028351
noradrenaline
C0014563
adrenaline