Introduction: Some studies have revealed changes in blood/urinary calcium with inverse relationship between calcium intakes during pregnancy, incidence of preeclampsia. So researchers believe that calcium has a role in etiology of hypertensive disorders during pregnancy. With reduced incidence of preeclampsia after calcium supplementation. So prevention of HDsP and/or their severity are being a...

a 13 year- old girl had rickets clinically evident sicne she was 10 years of age. she received multiple doses of vitamin d3 without improvement.this patient manifested an unusal form of hypophosphatemic rickets with hypercalciuria. it is recommended that urinary calcium excretion be assessed in all patients with hypophosphatemic rickets before the initiation of any therapy

We have characterized the types of encrustations that form on ureteral stents. The deposit generates blocks is composed hydroxyapatite/magnesium ammonium phosphate (44%). Calcium oxalate dihydrate was also detected at a high degree encrustation (13%). Hydroxyapatite deposits, (13%) are generated due to their formation as consequence persistently urinary pH values. large uric acid deposits (31%)...

Studies of calcium and phosphorus metabolism and acid-base balance were carried out on three Fleet Ballistic Missile (FBM) submarines during prolonged exposure to elevated concentrations of CO2. The average CO2 concentration in the submarine atmosphere during patrols ranged from 0.85% to 1% CO2. In the three studies, in which 9--15 subjects participated, the urinary excretion of calcium and pho...

Background: The incidence and prevalence of urinary stone are increasing throughout the world. Compared with the past, urolithiasis compositions by patient demographics are strikingly different. Furthermore, recent clinical studies implied that seasonal cyclicity might influence the distribution of stone composition. Methods: We sought to determine the trends in pathogenesis of urolithiasis bas...

BACKGROUND The incidence and prevalence of urinary stone are increasing throughout the world. Compared to the past, recent demographics of patient with urolithiasis compositions are strikingly different. Furthermore, recent clinical studies implied that seasonal cyclicity might influence the distribution of stone composition. METHODS We sought to determine the trends in pathogenesis of urolit...

A classical twin study was performed to assess the relative contributions of genetic and environmental factors to serum levels of calcium, phosphate and magnesium, urinary levels of calcium, sodium and potassium, and creatinine clearance. The subjects were 1747 adult female twin pairs: 539 monozygotic and 1208 dizygotic. The intraclass correlations were calculated, and maximum-likelihood model ...

Caffeine consumption increases the urinary excretion of calcium and other minerals. Factors that affect caffeine metabolism such as steroid hormones may modify this effect. The purpose of this study was to evaluate the influence of oral contraceptive (OC) use on the 4-h urinary excretion of calcium, phosphorus, magnesium, zinc, sodium, potassium and caffeine metabolites in response to a high ca...

Increased consumption of vegetables/herbs/fruit may reduce bone turnover and urinary calcium loss in post-menopausal women because of increased intake of polyphenols and potassium, but comparative human studies are lacking. The main aim was to compare bone turnover markers and urinary calcium excretion in two randomised groups (n = 50) of healthy post-menopausal women consuming ≥ 9 servings of ...