To determine the mechanism underlying altered adrenal responsiveness in patients with essential hypertension, the renin-angiotensin-aldosterone axis was assessed in normotensive and hypertensive subjects using three pharmacological probes: SQ 20881, a converting enzyme inhibitor; saralasin, a competitive angiotensin antagonist with prominent agonist properties; and angiotensin itself. All subjects were studied while supine and in balance on a 10 meq Na/100 meq K intake. The decrement in plasma aldosterone with SQ 20881 in 26 hypertensive subjects (15±3 ng/dl) was normal (13±4 ng/dl), suggesting that the altered adrenal responsiveness in hypertensives is not because of a change in a postreceptor event or in the relative contribution of angiotensin to the control of aldosterone secretion.
Gordon H. Williams, Norman K. Hollenberg, Thomas J. Moore, Stephen L. Swartz, Robert G. Dluhy
Title and authors | Publication | Year |
---|---|---|
Effects of losartan on blood pressure, plasma renin activity, and angiotensin II in volunteers
MR Goldberg, W Tanaka, A Barchowsky, TE Bradstreet, J McCrea, MW Lo, EJ McWilliams, TD Bjornsson |
Hypertension | 1993 |
Feasibility of outpatient electrolyte balance studies
ML McCullough, JF Swain, C Malarick, TJ Moore |
Journal of the American College of Nutrition | 1991 |
Achievements in hypertension: A 25 year overview
ED Frohlich |
Journal of the American College of Cardiology | 1983 |
Nervous disorders of renal function
AD Baines |
Clinical Biochemistry | 1983 |
Decreased adrenal responsiveness to angiotensin II: a defect present in spontaneously hypertensive rats. A possible model of human essential hypertension
GH Williams, LM Braley, A Menachery |
Journal of Clinical Investigation | 1982 |
Rapid increase of mineralocorticoids after furosemide in low-renin essential hypertension: Evidence for 18-hydroxycorticosterone to be a better marker than aldosterone
H Witzgall, G Thayil, PC Weber |
Klinische Wochenschrift | 1982 |
Parallel adrenal and renal abnormalities in young patients with essential hypertension
GH Williams, ML Tuck, JM Sullivan, RG Dluhy, NK Hollenberg |
The American Journal of Medicine | 1982 |
Dopaminergic modulation of pressor and hormonal responses in essential hypertension
JR Sowers, MS Golub, ME Berger, LA Whitfield |
Hypertension | 1982 |
Response of aldosterone and 18-hydroxycorticosterone to angiotensin II in normal subjects and patients with essential hypertension, Conn's syndrome, and nontumorous hyperaldosteronism
R Fraser, C Beretta-Piccoli, JJ Brown, AM Cumming, AF Lever, PA Mason, JJ Morton, JI Robertson |
Hypertension | 1981 |
Contemporary Nephrology
S Klahr, SG Massry |
1981 | |
Abnormal Adrenal Responsiveness and Angiotensin II Dependency in High Renin Essential Hypertension
RG Dluhy, SZ Bavli, FK Leung, HS Solomon, TJ Moore, NK Hollenberg, GH Williams |
Journal of Clinical Investigation | 1979 |