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Query: UMLS:C0451641 (urolithiasis)
 3,973 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In 26 healthy individuals and 114 patients with urolithiasis, total urine protein levels were measured in a single sample by using the stain ponceau S. The findings were statistically analyzed. The levels of the protein were found to be 27-80 mg/l in the healthy individuals, while the distribution of the data was asymmetric as viewed from high values. The patients with urolithiasis exhibited their protein levels according to the type of nephrolithiasis. Proteinuria was demonstrated to be less pronounced in patients with oxalate and urate nephrolithiasis than in patients with coral phosphate calculi. There was a substantial asymmetry in the distribution of total urine protein for all the examined groups of urolithiasis patients, as well as great dispersion values, which fails to regard the parameter alone as a diagnostic criterion for the type of nephrolithiasis. At the same time it was noted that simultaneous examination of the levels of total protein, uric acid, potassium, and sodium enabled the type of a concrement (oxalate or phosphate) to be in vivo estimated with approximately 85% probability.
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PMID:[Total urinary protein in different types of nephrolithiasis]. 194 15

A retrospective multicentre study of 341 children with persistent/recurrent, isolated haematuria is described. The haematuria was isolated for at least 6 months at the beginning of observation. The duration of follow-up was 2-5 years in 201, 5-10 years in 119, 10-15 years in 19, and over 15 years in 2 cases. Of these patients 47.8% became symptom-free. In 18.4% the haematuria remained isolated; in 13.8% it was combined with proteinuria over 250 mg/day more than 2 years later. The occurrence of associated proteinuria increased progressively with time. It was 8.6% between the 3rd and 5th years, and 37.0% after the 5th year. Renal biopsy was performed because of the symptoms of glomerular disease in 47 cases at an average time of 12 months following the appearance of proteinuria. Proteinuria appeared after a 2-5, 5-10, 10-15 and more than 15 years follow-up period in 16, 23, 6, and 2 patients respectively; 14 of them had Alport's nephropathy. The percentage of more serious azotaemia was 1.7 (creatinine clearance: 10-50 ml/min per 1.73 m2) and 0.3 (creatinine clearance: less than 10 ml/min per 1.73 m2). Mortality was 0.58%. Most of the patients who developed severe azotaemia had persistent microscopic haematuria at the beginning. The prevalence of hypertension was only 1.2%. The time of its appearance was above 5 years in 2 and below 5 years in 2 cases. All these patients had chronic glomerulonephritis. The haematuria was associated with hypercalciuria in 19.9%. In 14.3% of the overall group of patients urolithiasis developed 2-15 years after onset. All of these had hypercalciuria.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Long-term follow-up of patients with persistent/recurrent, isolated haematuria: a Hungarian multicentre study. 270

Examination of the urine plays a vital role in the diagnosis of kidney diseases. Proteinuria is an important indicator of renal disease and the types of proteins found in the urine help distinguish glomerular and tubular disorders. The findings of casts and blood cells in the urine provide valuable clues about the causes of the underlying renal pathology. Crystals may be found in the urine of healthy individuals and in patients with urolithiasis, toxic damage, and chronic renal failure.
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PMID:Urinalysis and urinary sediment in patients with renal disease. 846 55