essential hypertension (eh) accounts for 90-95% of hypertension cases. eh, as a progressive cardiovascular syndrome arising from complex and interrelated etiologies, results from combined and interactive effects of genetic and environmental factors. the objective was to investigate the ace i/d and gnb3 c825t polymorphisms and both genotypes combined with seeking gene-gene interactions to furthe...

      In this study, the changes of renin system activity and the effects of aspirin therapy on the plasma renin activity ( PRA) in myocardial infarction were investigated. Fifty nine patients with myocardial infarction were selected. By suppressed in the former group which was statistically significant ( p<0.01).   

paraneoplastic syndromes result from secretion of hormones, peptides or cytokines by tumor or immune cross-reactivity between malignant and normal tissues. these conditions are rare in children, but when the clinical presentation of patients with a tumor is unusual, these syndromes should be emphasized . extrarenal tumors with renin-secretion are rare in children. they may be related to paraneo...

Active, inactive and total plasma renin activity (obtained after cryoactivation), active, inactive and total plasma renin concentration (obtained after acid activation) and plasma angiotensin II were measured in 20 healthy infants and in 20 healthy adults. Active plasma renin activity but not active plasma renin concentration or plasma angiotensin II were significantly higher in the infants. In...

1. Hepatic elimination of renin was measured in 10 well-compensated cardiac patients with normal liver function during a control period and during a period of reduced hepatic plasma flow, induced by physical exercise (seven patients) or intravenous infusion of lysine vasopressin (three patients). 2. Hepatic renin elimination rate (hepatic plasma flow x arterial-hepatic vein difference of plasma...

The response of renin release to the administration of renin inhibitors cannot be studied with conventional enzymatic methods used to measure plasma renin. In the present experiments, a novel multirange enzyme-linked immunosorbent assay for human and primate renin was used to investigate the changes in plasma immunoreactive renin after renin inhibition. A potent and long-acting statine-containi...

Introduction: Salt sensitivity of blood pressure is a phenomenon in which changes according to dietary sodium intake. Our previous studies found that high salt activates antigen presenting cells, resulting the development hypertension. The mechanisms by salt-induced immune cell activation regulated are unknown. In current study, we investigated effects on renin-angiotensin-aldosterone system (R...

To evaluate whether, in the forearm of hypertensive patients with different circulating renin profiles, local beta-adrenergic receptor-induced production of active renin, plasma renin activity, angiotensin I (Ang I), and angiotensin II (Ang II) was or was not related to the renin profile, we studied four groups of patients: 1) hypertensive patients with primary aldosteronism and suppressed circ...

1. A large dose of oestrogen elevated the blood pressure in male Westar rats. 2. Plasma renin substrate and renin activity increased significantly but plasma renin concentration was unchanged. 3. The increase in blood pressure induced by oestrogen was significantly reduced by salt loading, plasma renin concentration was suppressed and the increase in plasma renin activity was reduced. 4. The in...

The phenomenon of plasma renin activattion by acid dialysis and preincubation with trypsin was studied in normal human plasma. Activation of plasma renin by exposure to pH 3.3 was shown to require at least one dialysis step and could be inhibited by the presence of Trasylol, indicating the involvement of a protease in acid activation. Amniotic fluid exposed to pH 1.5 to destroy renin and renin ...