...Margareta Bramnert; Hökfelt Bernt 1. There is evidence that opioid peptides influence blood pressure and heart rate in animals and man. In the present investigation the effect of naloxone on the exercise-induced increase in blood pressure, heart rate, plasma catecholamines, plasma renin activity...

... and low-renin essential hypertension. Urinary kallikrein excretion was very high in the patients with primary aldosteronism. 3. In nine hypertensive patients β-adrenoreceptor-blocking therapy caused a significant decrease of plasma renin activity, but had no significant effect on urinary kallikrein...

... correlated with plasma renin activity and the correlation was not improved when blood pressure was related to expressions combining renin and volume. 2. Changes in supine mean blood pressure during saralasin infusion were related to pre-infusion plasma renin activity ( P < 0·001) or plasma angiotensin II...

...O. P. Gulati; O. A. Carretero; T. Morino; N. B. Oza 1. Urinary kallikrein, sodium, potassium and water excretion, and plasma renin activity were measured before and during the reversal of experimental hypertension produced by unclamping the renal artery in rats. 2. Kallikrein excretion decreased...

...M. P. Sambhi; J. D. Barrett; P. Eggena; C. Thananopavarn 1. Plasma renin activity and circulating amounts of blood angiotensin II were measured in twenty-six patients with uncomplicated essential hypertension. 2. Measurements were made during a control period and at 1, 4, 9 and 14 weeks of diuretic...

... urine flow and the sum of fractional free water and sodium clearances) increased significantly in both groups. The progesterone-induced increase in sodium excretion was not related to changes in plasma renin activity, renin substrate or urinary aldosterone. After 3 days of progesterone, the increase...

...E. Rosset; J. R. Scherrer; R. Veyrat 1. In normal man, in deoxycorticosterone/salt hypertension, and in renal artery stenosis, an inverse relationship between plasma renin activity (PRA) and renin-substrate (RS) is found. 2. PRA and RS were found to be inversely related in primary aldosteronism...

...Kikuo Arakawa; Zenziro Masaki; Yukio Osada; Junko Yamada; Shunro Momose 1. Eighteen patients with unilateral arterial stenosis or renal parenchymal lesion underwent corrective surgery for hypertension. Operative curability of hypertension was compared with pre-operative plasma renin activity (PRA...