catecholamine ( 10 ( -5 ) m epinephrine , isoproterenol , or norepinephrine ) -stimulated adenylate cyclase activity increased by 200-300 % between 6 and 24-27 mo of age in ad libitum-fed rats , whereas in food-restricted rats catecholamine response increased by only 58-84 % between 6 and 30 mo .
C0022245
isoproterenol
C0007412
catecholamine