... not follow the same kinetics for all substances. There is probably for AVP a fast releasing pool stimulated by a negative feedback. aldosterone arginine vasopressin insulin plasma renin plasmapheresis 13 1 1987 24 3 1987 © 1970 The Biochemical Society and the Medical Research...

... the development of hypertension. This decrease was accompanied by a significant increase in water intake and urine volume and a significant decrease in plasma renin activity (PRA). 3. A low Na + diet also decreased blood pressure significantly, but, in contrast to the high K + diet, water intake and urine volume...

... in the first hour and then more slowly over 24 h. 3. Plasma renin concentration fell into the normal range by 3 h after unclipping. 4. Aortic renin concentration was markedly raised in hypertensive rats and declined slowly after unclipping, being virtually unchanged at 3 h and reaching normal levels at 24 h. 5...

...M. Loudon; R. F. Bing; J. D. Swales; H. Thurston 1. To assess the relative importance of vascular as opposed to plasma renin, groups of conscious rats received a single intravenous injection of partially purified rat renin 18 h after bilateral nephrectomy. Blood pressure was monitored continuously...

...M. H. De Keijzer; A. P. Provoost; F. H. M. Derkx 1. Rat plasma was subjected at 4°C to various treatments known to convert inactive renin into its active form in human plasma. 2. No statistical differences in plasma renin concentration were found when the levels after the various treatments were...

... changes in plasma renin and aldosterone concentration and plasma volume. The reflexly induced hyperkinetic circulatory state could be completely corrected by adding propranolol or prevented by pretreatment with the latter drug. 2. Sodium retention was an invariable phenomenon. It was not due...

...G. G. Geyskes; P. Boer; J. Vos; E. J. Dorhout Mees 1. Plasma renin activity (PRA) and renin dependency of the blood pressure was analysed in ten patients with various forms of hypertension before and during treatment with volume depletion and/or propranolol. Renin dependency was tested by infusion...

...G. S. Stokes; Helen F. Oates; M. A. Weber 1. In rabbits actively immunized against angiotensin II (AII), the appearance of anti-AII antibodies was associated with a rise in plasma renin activity (PRA), which did not occur in mock-immunized controls. 2. In conscious rabbits, infusion...

...S. L. Skinner; Eugenie R. Lumbers; E. M. Symonds 1. Determinations of plasma renin activity (PRA), plasma renin concentration (PRC) and renin substrate (RS) were made on single plasma samples from thirty-four women at various stages of pregnancy. Comparisons were made with non-pregnant control...