accumulating evidence indicates that aldosterone plays a critical role in the mediation of oxidative stress and vascular damage. nadph oxidase has been recognized as a major source of oxidative stress in vasculature. however, the relation between nadph oxidase in aldosterone-mediated oxidative stress in endothelial cells remains to be ascertained. the present study aimed to investigate the rele...

there are many reports for involvement of atp-sensitive potassium channels in pancreatic, cardiac and vascular smooth muscle cells. this study examined the effect of single doses of k+ channel openers diazoxide, minoxidil and k+ channel blockers chlorpropamide, glibenclamide on serum concentration of aldosterone in male rats. blood samples were obtained 60 minutes after drug treatment and serum...

- pseudohypoaldosteronism (p'ha) is referred to a state of endorgan unresponsiveness to aldosterone. in this article a 12 day - old mule newborn is presented with hyponatremia, hyperkalemia and metabolic acidosis. aldosterone level and plasma renin activity were high. mineralocorticoids had no therapeutic effect, hut normal saline infusion improved electrolyte imbalance. salt-rich diet was succ...

Increased plasma levels of aldosterone and cortisol have been associated with an increased risk of mortality and hospitalization for heart failure (HF) in patients with a reduced left ventricular ejection fraction (REF). Mineralocorticoid receptor antagonists (MRAs), which block the effects of both cortisol and aldosterone on the MR, are effective in reducing total mortality as well as hospital...

1. The effect of progesterone on renal haemodynamics and intrarenal sodium handing was evaluated in thirteen normal men on a constant diet. Clearances were measured during maximal water diuresis and again 4-7 days later, this time 3 h after progesterone was given intramuscularly. Seven additional studies were performed 3 days after progesterone administration. Another four tests were performed ...

Intranasal administration of angiotensin II (ANGII) affects blood pressure in a mode different from intravenously administered ANGII via a direct access to the brain bypassing the blood-brain barrier. This clinical study investigated blood pressure regulation after intranasal ANGII administration in healthy humans, whereas systemic, blood-mediated effects of ANGII were specifically blocked. In ...