in hypertensive patients , but not in normotensives , lvm index was significantly correlated with beta-adrenoceptor responsiveness , as evaluated by the chronotropic response to isoproterenol ( cd25 ) ( r = 0.525 , p less than 0.001 ) and with the 24-hour catecholamine urinary output ( r = 0.485 , p less than 0.001 ) .
C0022245
isoproterenol
C0007412
catecholamine