نتایج جستجو برای: urinary calcium
تعداد نتایج: 271629 فیلتر نتایج به سال:
Background and purpose: Differences of race, region and type of diet can be effective in the urinary excretion of calcium. Calcium stones are the most common kidney stones. The most common metabolic disorder predisposing to stone formation is hypercalcuiria. The aim of this study was to comparison the urine level of calcium to creatinine ratio in children suffering from urolithiasis and the con...
Background: Excessive consumption of fast foods that are high in salt is one of the most important aspects of changes in food habits. The results of Studies on the effects of sodium on bone metabolism have been inconsistent. Definitive answer to the question that Sodium restriction can be associated with a lower incidence of osteoporosis is lacking. What the necessity of designing this study re...
It has been speculated that calcium supplement in subjects with low oxalate intake might increase the risk of calcium stone formation due to an increase in calcium absorption without a significant reduction in oxalate absorption. There have been no human studies addressing specifically the effects of taking calcium supplements in populations whose dietary oxalate is low. This study was conducte...
Although considerable data have been gathered on the metabolism of the ash constituents, the literature concerning the interrelations between calcium and magnesium metabolism is very limited. This experiment was undertaken to ascertain whether an increased intake of calcium would affect the urinary and fecal excretion of magnesium and eice r’ersn, thus showing intcrrclations between the metabol...
Background and purpose:Urolithiasis is one of the most common diseases of urinary tract. Abdominal colicky pain, nausia, vomiting and hematuria are the major clinical findings. Treatments including oral drugs, lithitripsy, using ureteroscope and open surgery are expensive and may result in significant complications. The aim of this research was to find medications for dissolution of urinary sto...
BACKGROUND AND OBJECTIVES Population-based data on urinary calcium excretion are scarce. The association of serum calcium and circulating levels of vitamin D [25(OH)D2 or D3] with urinary calcium excretion in men and women from a population-based study was explored. DESIGN, SETTINGS, PARTICIPANTS, & MEASUREMENTS Multivariable linear regression was used to explore factors associated with squar...
BACKGROUND Hypercalciuria is one of the most common causes of unexplained isolated hematuria. The diagnostic methods for hypercalciuria have not yet been standardized. The aim of this study was to assess whether random urinary calcium/creatinine ratio could be used as a screening tool for hypercalciuria in children with hematuria. METHODS This prospective study included 264 children with prim...
Metabolic acidosis increases urinary calcium excretion in humans as a result of administration of ammonium chloride, an increase in dietary protein intake, and fasting-induced ketoacidosis. An intense bout of exercise, exceeding aerobic capacity, also causes significant decrease in blood pH as a result of increase in blood lactate concentration. In this study we investigated changes in renal ca...
AIM Hypercalciuria is an important cause of urinary tract symptoms, and also frequently results in urolithiasis. Urinary calcium excretion varies for geographic areas. We aimed to assess percentiles of urinary calcium excretion and prevalence of hypercalciuria for school-aged children in Tokat (city located in inner northern region of Turkey). MATERIAL AND METHODS One thousand three hundred s...
Our study investigated the association of rare allelic variants with extremes of 24-hour urinary calcium excretion because higher urinary calcium excretion is a dominant risk factor for calcium-based kidney stone formation. We resequenced 40 candidate genes potentially related to urinary calcium excretion in individuals from the Nurses' Health Studies I & II and the Health Professionals Follow-...
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