منابع مشابه
Urinary calcium oxalate crystal growth inhibitors.
Calcium stones occur because renal tubular fluid and urine are supersaturated with respect to calcium oxalate and phosphate. The process of stone formation includes crystal nucleation, growth, aggregation, and attachment to renal epithelia. Urine contains macromolecules that modify these processes and may protect against stone formation. Attention has focused especially on inhibitors of crystal...
متن کاملEffect of citrate on the urinary excretion of calcium and oxalate: relevance to calcium oxalate nephrolithiasis.
Studies in 24 recurrent oxalate stone-formers have shown that values for urinary calcium excretion for this group on at-home diets vary significantly (P less than 0.001) more than values for creatinine excretions. By placing stone-formers on controlled in-hospital diets and measuring their calcium excretions, we were able to predict probable outpatient hypercalciuria (greater than 7.5 mmol/day)...
متن کاملRapid Communication: relative effect of urinary calcium and oxalate on saturation of calcium oxalate.
BACKGROUND The study compared the effect of urinary calcium with that of oxalate on urinary saturation [relative saturation ratio (RSR)] of calcium oxalate. METHODS A retrospective data analysis was conducted on urinary stone risk analysis from 667 patients with predominantly calcium oxalate stones. Urinary RSR of calcium oxalate was individually calculated using Equil 2. A "theoretical" curv...
متن کاملEffect of dietary calcium on urinary oxalate excretion after oxalate loads.
An experimental model that allowed differentiation between endogenously and exogenously derived urinary oxalate was used to assess the effect of different forms and doses of ingested calcium on oxalate absorption and excretion. In replication 1 (R-1), subjects participated in three oxalate load (OL) tests: baseline (OL alone), calcium carbonate (OL with concomitant calcium carbonate ingestion),...
متن کاملFasting Urinary Calcium‐to‐Creatinine and Oxalate‐to‐Creatinine Ratios in Dogs with Calcium Oxalate Urolithiasis and Breed‐Matched Controls
BACKGROUND Hypercalciuria and hyperoxaluria are risk factors for calcium oxalate (CaOx) urolithiasis, but breed-specific reports of urinary metabolites and their relationship with stone status are lacking. OBJECTIVE To compare urinary metabolites (calcium and oxalate) and blood ionized calcium (iCa) concentrations between CaOx stone formers and breed-matched stone-free controls for the Miniat...
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ژورنال
عنوان ژورنال: Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
سال: 2000
ISSN: 0300-9173
DOI: 10.3143/geriatrics.37.805