• Potential living donors should have their urinary protein excretion measured using either a 24-hour urine collection (daily excretion) or a spot urine sample (protein/creatinine ratio). • A urine protein excretion of >300 mg/day (24 hour collection) or of >30 mg/mmol (spot urine protein/ creatinine ratio) is usually a contraindication to live donation. • Further investigations are warranted w...

BACKGROUND Hypertension is the leading cause for heart disease and stroke, for mortality and morbidity worldwide, and a high sodium-to-potassium intake ratio is considered a stronger risk factor for hypertension than sodium alone. OBJECTIVE This study aims to evaluate sodium and potassium urinary excretion, and assess the food sources of these nutrients in a sample of Portuguese adolescents. ...

BACKGROUND The effect of urinary alkalinization in cardiac surgery patients at risk of acute kidney injury (AKI) is controversial and trial findings conflicting. Accordingly, the authors performed a prospectively planned individual patient data meta-analysis of the double-blind randomized trials in this field. METHODS The authors studied 877 patients from three double-blind, randomized contro...

High sodium intake limits the antihypertensive and antiproteinuric effects of angiotensin-converting enzyme (ACE) inhibitors in patients with CKD; however, whether dietary sodium also associates with progression to ESRD is unknown. We conducted a post hoc analysis of the first and second Ramipril Efficacy in Nephropathy trials to evaluate the association of sodium intake with proteinuria and pr...

Abnormalities of sodium-lithium countertransport have been extensively implicated in adult primary hypertension and a relationship between sodium-lithium countertransport and family history of hypertension in children has been previously found. More recently it has been suggested that increased sodium-lithium countertransport may play a part in the pathogenesis of nephropathy in insulin depende...

Aim of this study is to confirm and investigate the diuretic effect of crocine which is the pharmacologically active component of Crocus sativus L. (saffron) and to study the possible mechanism of action in relation to urinary nitrite. Twenty four rats were divided into 3 groups; control, hydrochlorothiazide and crocine treated groups. Assay of the diuretic activity of crocine was performed by ...

Aim of this study is to confirm and investigate the diuretic effect of crocine which is the pharmacologically active component of Crocus sativus L. (saffron) and to study the possible mechanism of action in relation to urinary nitrite. Twenty four rats were divided into 3 groups; control, hydrochlorothiazide and crocine treated groups. Assay of the diuretic activity of crocine was performed by ...

BACKGROUND In low-renin hypertension (LRH), serum aldosterone levels are higher in those subjects with primary aldosteronism and may be lower in those with non-aldosterone mineralocorticoid excess or primary renal sodium retention. We investigated the hypothesis that the frequency distribution of aldosterone in LRH is bimodal. METHODS Of the 3,532 attendees at the sixth examination cycle of t...

To determine whether the sympathetic nervous system contributes to the hypertension induced by pathophysiological increments in plasma angiotensin II (Ang II) concentration, we determined the neurally induced changes in renal excretory function during chronic intravenous infusion of Ang II. Studies were carried out in five conscious chronically instrumented dogs subjected to unilateral renal de...

OBJECTIVE To assess the quantitative measurement of proteinuria by using random urine protein:creatinine index/ratio in comparison with 24 hours urinary protein excretion in patients of renal diseases having normal glomerular filtration rate. METHODS One hundred and thirty patients, 94 males and 36 females, with an age range of 5 to 60 years; having proteinuria of more than 150 mg/day were in...