the effect of aging on platelet alpha-adrenoceptor binding of 3h-dihydro-alpha-ergocryptine ( 3h-dhe ) and alpha-adrenoceptor response expressed as camp decrease , after the addition of noradrenaline 10 microm to intact platelets in vitro were examined and correlated with adrenaline induced platelet aggregation in a group of twelve young volunteers ( mean age 21 years ) , and twelve old volunteers ( mean age 88 years ) .
C0028351
noradrenaline
C0014563
adrenaline