[The physicochemical and biochemical signs of nephrolithiasis].

Urolithiasis diagnosis by uroliths presence reflects insufficient knowledge of the disease pathogenesis. 42 patients with oxalocalcium nephrolithiasis and 20 healthy patients were examined for differences in the urine and plasma composition. The authors studied factors involved in regulation of mineral metabolism and urinary elimination of crystal-forming substances.

[Crystalluria].

The paper considers a clinical role of crystalluria and its relation to urolithiasis. Examination of 185274 cases of symptomless crystalluria in the citizens of Kharkov and Kharkov region revealed oxalic-calcic urinary crystals in 12.2%, urate crystals in 3.